| January 2026 - LDT | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DoW | Date | Moon days | Dark Code | Max moon Illum | Time Range (MST) | No moon/ night hrs | Frac night | Prog ID | Principal | Remote | Instrument | Requested Filters/Gratings | TO | Intended LMI Filter Setup | Intended DeVeny Grating |
| Thu | Jan-01 | 13.1 | b b b | 98% 98% 99% | 18:24-00:28 00:28-03:30 03:30-06:32 | 0.0 / 6.1 0.0 / 3.0 0.0 / 3.0 | 0.5 0.25 0.25 | E01 L13 Y01 | Engineering Polanski Brewer | Remote Remote | LMI EXPRES EXPRES | r | BM OW | OPEN DARK UC C2 C3 I R V B H2O+ OPEN u g r i z CN Oiii VR HαOn | DV2 (300g/mm,4000A) |
| Fri | Jan-02 | 14.1 | b b | 100% 100% | 18:25-03:30 03:30-06:32 | 0.0 / 9.1 0.0 / 3.0 | 0.75 0.25 | E01 Y01 | Engineering Brewer | Remote | LMI EXPRES | r | IN OW | OPEN DARK UC C2 C3 I R V B H2O+ OPEN u g r i z CN Oiii VR HαOn | DV2 (300g/mm,4000A) |
| Sat | Jan-03 | 14.7 | b b | 99% 99% | 18:26-03:30 03:30-06:32 | 0.0 / 9.1 0.0 / 3.0 | 0.75 0.25 | E01 Y01 | Engineering Brewer | Remote | LMI EXPRES | r | IN BS | OPEN DARK UC C2 C3 I R V B H2O+ OPEN u g r i z CN Oiii VR HαOn | DV2 (300g/mm,4000A) |
| Sun | Jan-04 | 13.7 | b b b | 96% 95% 94% | 18:26-00:29 00:29-03:30 03:30-06:32 | 0.2 / 6.0 0.0 / 3.0 0.0 / 3.0 | 0.5 0.25 0.25 | E01 L14 Y01 | Engineering Polanski Brewer | Remote Remote | LMI EXPRES EXPRES | r | IN BS | OPEN DARK UC C2 C3 I R V B H2O+ OPEN u g r i z CN Oiii VR HαOn | DV2 (300g/mm,4000A) |
| Mon | Jan-05 | 12.7 | b | 90% | 18:27-06:33 | 1.4 / 12.1 | 1.0 | E01 | Engineering | LMI | r | CS BS | OPEN DARK UC C2 C3 I R V B H2O+ OPEN u g r i z CN Oiii VR HαOn | DV2 (300g/mm,4000A) | |
| Tue | Jan-06 | 11.7 | g b b | 82% 81% 80% | 18:28-00:30 00:30-03:32 03:32-06:33 | 2.5 / 6.0 0.0 / 3.0 0.0 / 3.0 | 0.5 0.25 0.25 | W02 Y01 E01 | Hallakoun Brewer Engineering | Remote Remote | EXPRES EXPRES LMI | r | BM CS | OPEN DARK UC C2 C3 I R V B H2O+ OPEN u g r i z CN Oiii VR HαOn | DV2 (300g/mm,4000A) |
| Wed | Jan-07 | 10.7 | D b | 73% 72% | 18:29-00:31 00:31-06:33 | 3.5 / 6.0 0.0 / 6.0 | 0.5 0.5 | L14 E01 | Polanski Engineering | Remote | EXPRES LMI | r | BM CS | OPEN DARK UC C2 C3 I R V B H2O+ OPEN u g r i z CN Oiii VR HαOn | DV2 (300g/mm,4000A) |
| Thu | Jan-08 | 9.7 | D g | 63% 62% | 18:29-00:31 00:31-06:33 | 4.5 / 6.0 0.0 / 6.0 | 0.5 0.5 | E01 L14 | Engineering Polanski | Remote | LMI EXPRES | r | BM OW | OPEN DARK UC C2 C3 I R V B H2O+ OPEN u g r i z CN Oiii VR HαOn | DV2 (300g/mm,4000A) |
| Fri | Jan-09 | 8.7 | D g g | 53% 53% 52% | 18:30-00:31 00:31-03:32 03:32-06:33 | 5.5 / 6.0 0.0 / 3.0 0.0 / 3.0 | 0.5 0.25 0.25 | N03 Y01 E01 | Madden-Watson Brewer Engineering | Remote Remote | DEVENY EXPRES RIMAS | DV2 r | BS OW | OPEN DARK UC C2 C3 I R V B H2O+ OPEN u g r i z CN Oiii VR HαOn | DV2 (300g/mm,4000A) |
| Sat | Jan-10 | 7.7 | D | 43% | 18:31-06:33 | 6.5 / 12.0 | 1.0 | L01 | Wasserman | Remote | LMI | VR | BS OW | OPEN DARK UC C2 C3 I R V OH H2O+ OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sun | Jan-11 | 6.7 | b D g | 0% 33% 32% | 18:01-18:32 18:32-06:33 06:33-07:04 | 0.0 / 0.0 7.4 / 12.0 0.0 / 0.0 | 0. 1.0 0. | L06 L02 L06 | Thirouin Grundy Thirouin | Remote Remote Remote | LMI LMI LMI | I,VR,g,r,i,z VR,I,g,r,i,z I,VR,g,r,i,z | BM BS | OPEN DARK UC C2 C3 I R V OH H2O+ OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Mon | Jan-12 | 5.7 | D | 24% | 18:33-06:33 | 8.4 / 12.0 | 1.0 | L17 | Hemmelgarn | Remote | LMI | u,g,r,i,z,VR | CS BS | OPEN DARK UC C2 C3 I R V OH H2O+ OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Tue | Jan-13 | 4.7 | D | 16% | 18:34-06:32 | 9.4 / 12.0 | 1.0 | M03 | Bauer | Remote | LMI | g,r,CO+,VR,OH,CN,BC,RC,C2,C3 | BM CS | OPEN DARK UC C2 C3 I R V OH CO+ OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Wed | Jan-14 | 3.7 | D D D | 0% 0% 10% | 18:34-00:33 21:44-22:14 00:33-06:32 | 5.5 / 6.0 0.5 / 0.5 4.8 / 6.0 | 0.5 0.05 0.5 | E01 L08 N04 | Engineering Zhang Cantelas | ToO Remote | LMI LMI,DEVENY,EXPRES LMI | r CO+,H2O+,CN,C3,C2,BC,RC,g,r,i,VR g,r,i,z | BM CS | OPEN DARK UC C2 C3 I R V B CO+ OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Thu | Jan-15 | 2.7 | D D | 0% 5% | 18:35-00:34 00:34-06:32 | 5.5 / 6.0 5.5 / 6.0 | 0.5 0.5 | B03 E01 | Schmidt Engineering | Remote | DEVENY LMI | DV3 (300g/mm 6750AA) r,HαOn,Oiii,B,V,R | BM OW | OPEN DARK UC C2 C3 I R V B CO+ OPEN u g r i z CN Oiii VR HαOn | DV3 (300g/mm,6750A) |
| Fri | Jan-16 | 1.7 | D | 0% | 18:36-06:32 | 10.9 / 11.9 | 1.0 | B01 | Guidry | Remote | LMI,POETS | g | IN OW | OPEN DARK UC C2 C3 I R V B CO+ OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sat | Jan-17 | 0.7 | b D D | 0% 0% 0% | 18:06-18:37 18:37-06:32 06:32-07:03 | 0.0 / 0.0 10.9 / 11.9 0.0 / 0.0 | 0. 1.0 0. | L06 L03 L06 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | I,VR,g,r,i,z VR,g,r,i,z,I I,VR,g,r,i,z | IN OW | OPEN DARK UC C2 C3 I R V B CO+ OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sun | Jan-18 | 0.3 | b D D | 0% 0% 0% | 18:07-18:38 18:38-06:31 06:31-07:02 | 0.0 / 0.0 10.9 / 11.9 0.0 / 0.0 | 0. 1.0 0. | L06 L02 L06 | Thirouin Grundy Thirouin | Remote Remote Remote | LMI LMI LMI | I,VR,g,r,i,z VR,I,g,r,i,z I,VR,g,r,i,z | IN BS | OPEN DARK UC C2 C3 I R V B CO+ OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Mon | Jan-19 | 1.3 | D D | 0% 0% | 18:39-03:33 03:33-06:31 | 8.4 / 8.9 2.5 / 3.0 | 0.75 0.25 | L09 L20 | Llama Levine | Remote Remote | EXPRES GWAVES,LMI,POETS | VR | CS BS | OPEN DARK UC C2 C3 I R V B CO+ OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Tue | Jan-20 | 2.3 | D D | 5% 0% | 18:40-00:35 00:35-06:31 | 4.9 / 5.9 5.5 / 5.9 | 0.5 0.5 | L09 L07 | Llama Sikora | Remote Remote | EXPRES RIMAS | BM IN | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Wed | Jan-21 | 3.3 | D D | 11% 0% | 18:41-03:33 03:33-06:31 | 6.8 / 8.9 2.5 / 3.0 | 0.75 0.25 | L09 Y01 | Llama Brewer | Remote Remote | EXPRES EXPRES | CS OW | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Thu | Jan-22 | 4.3 | D D | 19% 0% | 18:41-00:35 00:35-06:30 | 2.8 / 5.9 5.4 / 5.9 | 0.5 0.5 | B03 L09 | Schmidt Llama | Remote Remote | DEVENY EXPRES | DV3 (300g/mm 6750AA) | BM OW | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV3 (300g/mm,6750A) |
| Fri | Jan-23 | 5.3 | D D D | 28% 0% 0% | 18:42-00:36 00:36-03:33 03:33-06:30 | 1.7 / 5.9 3.0 / 3.0 2.5 / 3.0 | 0.5 0.25 0.25 | L14 L09 B07 | Polanski Llama Ye | Remote Remote Remote | EXPRES EXPRES EXPRES | IN OW | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Sat | Jan-24 | 6.3 | g D D | 39% 0% 0% | 18:43-00:36 00:36-03:33 03:33-06:29 | 0.6 / 5.9 3.0 / 3.0 2.5 / 2.9 | 0.5 0.25 0.25 | B03 L18 Y01 | Schmidt Kareta Brewer | Remote Remote Remote | DEVENY LMI EXPRES | DV3 (300g/mm 6750AA) g,r,i,z,CN,VR | IN OW | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV3 (300g/mm,6750A) |
| Sun | Jan-25 | 7.3 | g g g D | 49% 49% 50% 51% | 18:44-21:40 18:44-19:44 21:40-00:36 00:36-06:29 | 0.0 / 2.9 0.0 / 1.0 0.0 / 2.9 4.9 / 5.9 | 0.25 0.09 0.25 0.5 | L13 W05 Y01 M04 | Polanski Zimmerman Brewer Ye | Remote ToO Remote Remote | EXPRES DEVENY EXPRES LMI,RIMAS | DV5 g,r,i,z,VR,OH,CN,BC,RC,C2,C3,UC | IN BS | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV5 (500g/mm,5500A) |
| Mon | Jan-26 | 8.3 | b g D | 60% 63% 0% | 18:15-18:45 18:45-06:28 06:28-06:59 | 0.0 / 0.0 3.7 / 11.7 0.0 / 0.0 | 0. 1.0 0. | L06 L03 L06 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | I,VR,g,r,i,z VR,g,r,i,z,I I,VR,g,r,i,z | CS BS | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Tue | Jan-27 | 9.3 | b D | 74% 0% | 18:46-03:32 03:32-06:28 | 0.0 / 8.8 2.5 / 2.9 | 0.75 0.25 | E01 Y01 | Engineering Brewer | Remote | LMI EXPRES | r | CS BS | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Wed | Jan-28 | 10.3 | b b g | 83% 84% 84% | 18:47-00:37 00:37-03:32 03:32-06:27 | 0.0 / 5.8 0.0 / 2.9 1.3 / 2.9 | 0.5 0.25 0.25 | E01 L14 Y01 | Engineering Polanski Brewer | Remote Remote | LMI EXPRES EXPRES | r | BM CS | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Thu | Jan-29 | 11.3 | b | 92% | 18:48-06:27 | 0.2 / 11.7 | 1.0 | B06 | Muirhead | Remote | LMI,RIMAS | J,H,I,z | BM OW | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Fri | Jan-30 | 12.3 | b | 97% | 18:49-06:26 | 0.0 / 11.6 | 1.0 | B06 | Muirhead | Remote | LMI,RIMAS | J,H,I,z | IN OW | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sat | Jan-31 | 13.3 | b | 100% | 18:50-06:26 | 0.0 / 11.6 | 1.0 | B06 | Muirhead | Remote | LMI,RIMAS | J,H,I,z | IN OW | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| February 2026 - LDT | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DoW | Date | Moon days | Dark Code | Max moon Illum | Time Range (MST) | No moon/ night hrs | Frac night | Prog ID | Principal | Remote | Instrument | Requested Filters/Gratings | TO | Intended LMI Filter Setup | Intended DeVeny Grating |
| Sun | Feb-01 | 14.3 | b b | 100% 100% | 18:50-03:31 03:31-06:25 | 0.0 / 8.7 0.0 / 2.9 | 0.75 0.25 | E01 Y01 | Engineering Brewer | Remote | LMI EXPRES | r | IN BS | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Mon | Feb-02 | 14.1 | b b b | 98% 97% 97% | 18:51-00:38 00:38-03:31 03:31-06:24 | 0.0 / 5.8 0.0 / 2.9 0.0 / 2.9 | 0.5 0.25 0.25 | E01 L13 Y01 | Engineering Polanski Brewer | Remote Remote | LMI EXPRES EXPRES | r | CS BS | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Tue | Feb-03 | 13.1 | b b | 94% 92% | 18:52-03:30 03:30-06:23 | 0.8 / 8.6 0.0 / 2.9 | 0.75 0.25 | E01 Y01 | Engineering Brewer | Remote | LMI EXPRES | r | BM CS | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Wed | Feb-04 | 12.1 | g | 87% | 18:53-06:23 | 1.9 / 11.5 | 1.0 | E01 | Engineering | LMI | r | BM CS | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV1 (150g/mm,5000A) | |
| Thu | Feb-05 | 11.1 | g b b | 79% 79% 78% | 18:54-00:38 00:38-03:30 03:30-06:22 | 2.9 / 5.7 0.0 / 2.9 0.0 / 2.9 | 0.5 0.25 0.25 | N02 L14 Y01 | Emery Polanski Brewer | Remote Remote Remote | DEVENY EXPRES EXPRES | DV1 (150g/mm) | BM OW | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV1 (150g/mm,5000A) |
| Fri | Feb-06 | 10.1 | D D g g | 70% 0% 70% 69% | 18:55-00:39 19:44-20:14 00:39-03:29 03:29-06:21 | 3.9 / 5.7 0.5 / 0.5 0.0 / 2.8 0.0 / 2.9 | 0.5 0.05 0.25 0.25 | M02 L08 Y01 E01 | Stein Zhang Brewer Engineering | Remote ToO Remote | DEVENY,LMI LMI,DEVENY,EXPRES EXPRES LMI | u,g,r,i,z,DV2 (300g/mm,4000A) CO+,H2O+,CN,C3,C2,BC,RC,g,r,i,VR r | IN OW | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sat | Feb-07 | 9.1 | g | 61% | 18:56-06:20 | 4.8 / 11.4 | 1.0 | L17 | Hemmelgarn | Remote | LMI | u,g,r,i,z,VR | IN BS | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sun | Feb-08 | 8.1 | b D g | 0% 51% 50% | 18:27-18:57 18:57-06:20 06:20-06:49 | 0.0 / 0.0 5.8 / 11.4 0.0 / 0.0 | 0. 1.0 0. | L06 L03 L06 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | I,VR,g,r,i,z VR,g,r,i,z,I I,VR,g,r,i,z | IN BS | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Mon | Feb-09 | 7.1 | D g | 0% 41% | 18:58-00:38 00:38-06:19 | 5.2 / 5.7 1.6 / 5.7 | 0.5 0.5 | T01 M04 | Megeath Ye | Remote Remote | RIMAS LMI,RIMAS | g,r,i,z,VR,OH,CN,BC,RC,C2,C3,UC | CS BS | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Tue | Feb-10 | 6.1 | D D | 0% 32% | 18:59-00:38 00:38-06:18 | 5.2 / 5.7 2.6 / 5.7 | 0.5 0.5 | N01 N03 | Farrell Madden-Watson | On-Site Remote | LMI DEVENY | VR,V,R,I,g,r,i DV1 | BM CS | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV1 (150g/mm,5000A) |
| Wed | Feb-11 | 5.1 | D D D D | 0% 0% 23% 23% | 18:59-20:24 20:24-02:03 02:03-06:17 06:17-06:47 | 0.9 / 1.4 5.7 / 5.7 2.1 / 4.2 0.0 / 0.0 | 0.13 0.5 0.37 0. | L08 L16 E01 L19 | Zhang Minker Engineering Schleicher | Remote On-Site Remote | LMI LMI,RIMAS LMI LMI | CN,C2,BC,g,r,i U,B,V,R,I,g,r,i r r,CN | BM CS | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Thu | Feb-12 | 4.1 | b D D | 0% 15% 15% | 18:31-19:00 19:00-06:16 06:16-06:46 | 0.0 / 0.0 9.5 / 11.3 0.0 / 0.0 | 0. 1.0 0. | L06 L02 L06 | Thirouin Grundy Thirouin | Remote Remote Remote | LMI LMI LMI | I,VR,g,r,i,z VR,I,g,r,i,z I,VR,g,r,i,z | BM CS | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Fri | Feb-13 | 3.1 | D D D | 0% 0% 9% | 19:01-20:25 20:25-21:49 21:49-06:15 | 0.9 / 1.4 1.4 / 1.4 7.9 / 8.4 | 0.12 0.12 0.75 | L08 Y01 L07 | Zhang Brewer Sikora | Remote Remote Remote | LMI EXPRES RIMAS | CN,C2,BC,g,r,i | IN OW | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sat | Feb-14 | 2.1 | b D D | 0% 0% 0% | 18:32-19:02 19:02-06:14 06:14-06:44 | 0.0 / 0.0 10.2 / 11.2 0.0 / 0.0 | 0. 1.0 0. | L06 L04 L06 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | I,VR,g,r,i,z VR,g,r,i,z,I I,VR,g,r,i,z | IN BS | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sun | Feb-15 | 1.1 | D D | 0% 0% | 19:03-06:13 05:35-06:51 | 10.2 / 11.2 0.2 / 0.7 | 1.0 0.06 | L01 L08 | Wasserman Zhang | Remote ToO | LMI LMI,DEVENY,EXPRES | VR CO+,H2O+,CN,C3,C2,BC,RC,g,r,i,VR | IN BS | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Mon | Feb-16 | 0.1 | D D | 0% 0% | 19:04-03:25 03:25-06:12 | 7.9 / 8.3 2.3 / 2.8 | 0.75 0.25 | L10 Y01 | Llama Brewer | Remote Remote | EXPRES EXPRES | CS BS | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Tue | Feb-17 | 0.9 | D | 0% | 19:05-06:11 | 10.2 / 11.1 | 1.0 | W03 | Polishook | Remote | DEVENY | DV1 (150g/mm,5000AA) | BM CS | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV1 (150g/mm,5000A) |
| Wed | Feb-18 | 1.9 | b D D | 3% 3% 0% | 18:36-19:06 19:06-06:10 06:10-06:40 | 0.0 / 0.0 10.1 / 11.1 0.0 / 0.0 | 0. 1.0 0. | L06 L03 L06 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | I,VR,g,r,i,z VR,g,r,i,z,I I,VR,g,r,i,z | BM CS | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Thu | Feb-19 | 2.9 | b D D | 7% 8% 0% | 18:37-19:06 19:06-06:09 06:09-06:38 | 0.0 / 0.0 8.9 / 11.1 0.0 / 0.0 | 0. 1.0 0. | L06 L02 L06 | Thirouin Grundy Thirouin | Remote Remote Remote | LMI LMI LMI | I,VR,g,r,i,z VR,I,g,r,i,z I,VR,g,r,i,z | BM OW | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Fri | Feb-20 | 3.9 | D | 15% | 19:07-06:08 | 7.8 / 11.0 | 1.0 | Y01 | Brewer | Remote | EXPRES | BS OW | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Sat | Feb-21 | 4.9 | D D D D | 24% 24% 0% 0% | 19:08-21:53 21:53-00:37 00:37-06:07 06:07-06:36 | 0.0 / 2.8 1.6 / 2.7 5.0 / 5.5 0.0 / 0.0 | 0.25 0.25 0.5 0. | Y01 L18 N05 L19 | Brewer Kareta Thomas Schleicher | Remote Remote Remote Remote | EXPRES LMI LMI LMI | g,r,i,z,CN,VR VR,g,r,i,z r,CN | BS OW | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sun | Feb-22 | 5.9 | D | 35% | 19:09-06:06 | 5.5 / 10.9 | 1.0 | B02 | Dong | Remote | DEVENY | DV6 (Clear) | BM BS | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV6 (600g/mm,4900A) |
| Mon | Feb-23 | 6.9 | g D D | 47% 47% 0% | 19:10-00:37 00:37-03:21 03:21-06:05 | 0.0 / 5.5 2.0 / 2.7 2.2 / 2.7 | 0.5 0.25 0.25 | L14 L13 Y01 | Polanski Polanski Brewer | Remote Remote Remote | EXPRES EXPRES EXPRES | IN CS | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Tue | Feb-24 | 7.9 | g D | 58% 59% | 19:11-00:37 00:37-06:03 | 0.0 / 5.4 3.0 / 5.4 | 0.5 0.5 | N03 E01 | Madden-Watson Engineering | Remote | DEVENY LMI | DV1 r,HαOn,Oiii,B,V,R | BM IN | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN Oiii VR HαOn | DV1 (150g/mm,5000A) |
| Wed | Feb-25 | 8.9 | g g g g | 69% 68% 69% 71% | 19:12-21:54 19:12-19:42 21:54-00:37 00:37-06:02 | 0.0 / 2.7 0.0 / 0.5 0.0 / 2.7 2.0 / 5.4 | 0.25 0.05 0.25 0.5 | L14 M01 Y01 N07 | Polanski Rastinejad Brewer Clark | Remote ToO Remote Remote | EXPRES DEVENY,LMI,RIMAS EXPRES LMI | u,g,r,i,z,YJHK,DV2 (300g/mm,4000A) g,r,i,z | BM CS | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN Oiii VR HαOn | DV2 (300g/mm,4000A) |
| Thu | Feb-26 | 9.9 | b b g | 79% 80% 81% | 19:12-00:37 00:37-03:19 03:19-06:01 | 0.0 / 5.4 0.0 / 2.7 1.1 / 2.7 | 0.5 0.25 0.25 | T01 L13 Y01 | Megeath Polanski Brewer | Remote Remote Remote | RIMAS EXPRES EXPRES | BM OW | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN Oiii VR HαOn | DV2 (300g/mm,4000A) | |
| Fri | Feb-27 | 10.9 | b | 89% | 19:13-06:00 | 0.3 / 10.8 | 1.0 | B02 | Dong | Remote | DEVENY | DV6 (Clear) | IN OW | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN Oiii VR HαOn | DV6 (600g/mm,4900A) |
| Sat | Feb-28 | 11.9 | b b b | 95% 94% 95% | 19:14-03:18 18:34-20:22 03:18-05:59 | 0.0 / 8.1 0.0 / 1.1 0.0 / 2.7 | 0.75 0.11 0.25 | E01 L08 Y01 | Engineering Zhang Brewer | ToO Remote | LMI LMI,DEVENY,EXPRES EXPRES | r CO+,H2O+,CN,C3,C2,BC,RC,g,r,i,VR | IN OW | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| March 2026 - LDT | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DoW | Date | Moon days | Dark Code | Max moon Illum | Time Range (MST) | No moon/ night hrs | Frac night | Prog ID | Principal | Remote | Instrument | Requested Filters/Gratings | TO | Intended LMI Filter Setup | Intended DeVeny Grating |
| Sun | Mar-01 | 12.9 | b | 99% | 19:15-05:57 | 0.0 / 10.7 | 1.0 | L14 | Polanski | Remote | EXPRES | IN BS | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Mon | Mar-02 | 13.9 | b b b | 100% 100% 100% | 19:16-05:56 21:00-21:30 05:00-06:00 | 0.0 / 10.7 0.0 / 0.5 0.0 / 0.9 | 1.0 0.05 0.09 | E01 M01 L11 | Engineering Rastinejad Moskovitz | ToO ToO | LMI DEVENY,LMI,RIMAS DEVENY,LMI,NIHTS,RIMAS | r u,g,r,i,z,YJHK,DV2 (300g/mm,4000A) u,g,r,i,z,VR,DV1 (150g/mm - preferred) or DV2 (300g/mm) | CS BS | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Tue | Mar-03 | 14.8 | b b b b | 99% 99% 99% 99% | 19:17-00:36 00:36-03:15 03:15-05:55 05:55-06:24 | 0.0 / 5.3 0.0 / 2.6 0.0 / 2.7 0.0 / 0.0 | 0.5 0.25 0.25 0. | L14 L14 Y01 L19 | Polanski Polanski Brewer Schleicher | Remote Remote Remote Remote | EXPRES EXPRES EXPRES LMI | r,CN | CS BS | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Wed | Mar-04 | 13.8 | b D b b | 97% 0% 96% 96% | 19:18-03:15 19:05-19:35 22:00-22:26 03:15-05:54 | 0.2 / 8.0 0.0 / 0.3 0.0 / 0.4 0.0 / 2.6 | 0.75 0.05 0.05 0.25 | E01 L06 M01 Y01 | Engineering Thirouin Rastinejad Brewer | ToO ToO Remote | LMI LMI DEVENY,LMI,RIMAS EXPRES | r I,VR,g,r,i,z u,g,r,i,z,YJHK,DV2 (300g/mm,4000A) | BM CS | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Thu | Mar-05 | 12.8 | b b | 92% 91% | 19:18-03:14 03:14-05:52 | 1.2 / 7.9 0.0 / 2.6 | 0.75 0.25 | E01 Y01 | Engineering Brewer | Remote | QWSSI EXPRES | BM OW | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Fri | Mar-06 | 11.8 | D b b | 0% 85% 84% | 19:19-21:57 21:57-03:13 03:13-05:51 | 2.1 / 2.6 0.1 / 5.3 0.0 / 2.6 | 0.25 0.5 0.25 | E01 L14 Y01 | Engineering Polanski Brewer | Remote Remote | LMI QWSSI EXPRES | r,HαOn,Oiii,B,V,R | IN OW | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN Oiii VR HαOn | DV2 (300g/mm,4000A) |
| Sat | Mar-07 | 10.8 | g | 78% | 19:20-05:50 | 3.2 / 10.5 | 1.0 | B02 | Dong | Remote | DEVENY | DV6 (Clear) | IN OW | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN Oiii VR HαOn | DV6 (600g/mm,4900A) |
| Sun | Mar-08 | 9.8 | D g g | 0% 69% 68% | 19:21-21:58 21:58-03:11 03:11-05:48 | 2.1 / 2.6 2.1 / 5.2 0.0 / 2.6 | 0.25 0.5 0.25 | E01 L07 L18 | Engineering Sikora Kareta | Remote Remote | LMI RIMAS LMI | r g,r,i,z,CN,VR | IN BS | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN Oiii VR HαOn | DV2 (300g/mm,4000A) |
| Mon | Mar-09 | 8.8 | D g g | 0% 59% 59% | 19:22-00:34 00:34-03:11 03:11-05:47 | 4.7 / 5.2 0.5 / 2.6 0.0 / 2.6 | 0.5 0.25 0.25 | L14 L13 Y01 | Polanski Polanski Brewer | Remote Remote Remote | EXPRES EXPRES EXPRES | CS BS | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN Oiii VR HαOn | DV2 (300g/mm,4000A) | |
| Tue | Mar-10 | 7.8 | D g | 50% 49% | 19:23-03:10 03:10-05:46 | 6.1 / 7.8 0.0 / 2.6 | 0.75 0.25 | L14 L14 | Polanski Polanski | Remote Remote | EXPRES EXPRES | BM CS | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Wed | Mar-11 | 6.8 | D D D g | 0% 0% 40% 40% | 19:23-21:58 19:25-19:51 21:58-03:09 03:09-05:44 | 2.1 / 2.6 0.0 / 0.4 4.9 / 5.2 0.0 / 2.6 | 0.25 0.05 0.5 0.25 | B07 M01 N02 Y01 | Ye Rastinejad Emery Brewer | Remote ToO Remote Remote | EXPRES DEVENY,LMI,RIMAS DEVENY EXPRES | u,g,r,i,z,YJHK,DV2 (300g/mm,4000A) DV1 (150g/mm) | BM CS | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV1 (150g/mm,5000A) |
| Thu | Mar-12 | 5.8 | D | 30% | 19:24-05:43 | 7.7 / 10.3 | 1.0 | L01 | Wasserman | Remote | LMI | VR | BM OW | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Fri | Mar-13 | 4.8 | b D D | 0% 22% 21% | 18:56-19:25 19:25-05:42 05:42-06:11 | 0.0 / 0.0 8.4 / 10.3 0.0 / 0.0 | 0. 1.0 0. | L06 L02 L19 | Thirouin Grundy Schleicher | Remote Remote Remote | LMI LMI LMI | I,VR,g,r,i,z VR,I,g,r,i,z r,CN | IN OW | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sat | Mar-14 | 3.8 | b D D | 0% 14% 14% | 18:57-19:26 19:26-05:40 05:40-06:09 | 0.0 / 0.0 8.9 / 10.2 0.0 / 0.0 | 0. 1.0 0. | L06 L05 L06 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | I,VR,g,r,i,z VR,I,r I,VR,g,r,i,z | IN BS | OPEN DARK H2O+ C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sun | Mar-15 | 2.8 | D D D | 0% 0% 7% | 19:27-20:43 20:43-00:32 00:32-05:39 | 0.8 / 1.3 3.8 / 3.8 4.6 / 5.1 | 0.12 0.37 0.5 | L08 Y01 M02 | Zhang Brewer Stein | Remote Remote Remote | LMI,DEVENY EXPRES DEVENY,LMI | H2O+,CN,C2,C3,RC,BC,CO+,OH,r,DV2 u,g,r,i,z,DV2 (300g/mm,4000A) | IN BS | OPEN DARK H2O+ C2 C3 I R V B OH OPEN u g r i z CN RC CO+ BC | DV2 (300g/mm,4000A) |
| Mon | Mar-16 | 1.8 | D D D | 0% 0% 0% | 19:28-20:44 20:44-23:16 23:16-05:37 | 0.8 / 1.3 2.5 / 2.5 5.9 / 6.3 | 0.12 0.25 0.63 | L08 W01 E01 | Zhang Zackay Engineering | Remote Remote | LMI,DEVENY QWSSI LMI | H2O+,CN,C2,C3,RC,BC,CO+,OH,r,DV2 r | CS BS | OPEN DARK H2O+ C2 C3 I R V B OH OPEN u g r i z CN RC CO+ BC | DV2 (300g/mm,4000A) |
| Tue | Mar-17 | 0.8 | D D D D | 0% 0% 0% 0% | 19:28-20:44 20:44-00:32 01:05-02:51 00:32-05:36 | 0.8 / 1.3 3.8 / 3.8 1.8 / 1.8 4.6 / 5.1 | 0.12 0.38 0.17 0.5 | L08 E01 W05 L16 | Zhang Engineering Zimmerman Minker | Remote ToO Remote | LMI,DEVENY LMI DEVENY LMI,RIMAS | H2O+,CN,C2,C3,RC,BC,CO+,OH,r,DV2 r DV2 U,B,V,R,I,g,r,i | BM CS | OPEN DARK H2O+ C2 C3 I R V B U OPEN OH g r i z CN RC CO+ BC | DV2 (300g/mm,4000A) |
| Wed | Mar-18 | 0.2 | D D | 0% 0% | 19:29-05:35 04:05-05:37 | 9.1 / 10.1 1.0 / 1.5 | 1.0 0.15 | B01 L11 | Guidry Moskovitz | Remote ToO | LMI DEVENY,LMI,NIHTS,RIMAS | g u,g,r,i,z,VR,DV1 (150g/mm - preferred) or DV2 (300g/mm) | BM CS | OPEN DARK H2O+ C2 C3 I R V B U OPEN OH g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Thu | Mar-19 | 1.2 | D D D D | 1% 0% 0% 0% | 19:30-00:31 00:31-03:02 01:05-01:28 03:02-05:33 | 4.5 / 5.0 2.5 / 2.5 0.4 / 0.4 2.0 / 2.5 | 0.5 0.25 0.05 0.25 | L14 Y01 W05 L18 | Polanski Brewer Zimmerman Kareta | Remote Remote ToO Remote | EXPRES EXPRES DEVENY LMI | DV2 g,r,i,z,CN,VR | BM OW | OPEN DARK H2O+ C2 C3 I R V B U OPEN OH g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Fri | Mar-20 | 2.2 | D D D D | 5% 0% 0% 0% | 19:31-20:46 20:46-00:31 00:31-03:02 03:02-05:32 | 0.0 / 1.2 3.8 / 3.8 2.5 / 2.5 2.0 / 2.5 | 0.12 0.37 0.25 0.25 | L08 E01 Y01 L19 | Zhang Engineering Brewer Schleicher | Remote Remote Remote | LMI,DEVENY,EXPRES LMI EXPRES LMI | H2O+,CN,C2,C3,RC,BC,CO+,OH,r,DV2 r r,CN,OH | IN OW | OPEN DARK H2O+ C2 C3 I R V B U OPEN OH g r i z CN RC CO+ BC | DV2 (300g/mm,4000A) |
| Sat | Mar-21 | 3.2 | b D D | 12% 12% 0% | 19:02-19:32 19:32-05:30 05:30-06:00 | 0.0 / 0.0 7.1 / 10.0 0.0 / 0.0 | 0. 1.0 0. | L06 L04 L06 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | I,VR,g,r,i,z VR,g,r,i,z,I I,VR,g,r,i,z | BS OW | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sun | Mar-22 | 4.2 | b D D | 20% 22% 0% | 19:03-19:33 19:33-05:29 05:29-05:58 | 0.0 / 0.0 5.8 / 9.9 0.0 / 0.0 | 0. 1.0 0. | L06 L03 L06 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | I,VR,g,r,i,z VR,g,r,i,z,I I,VR,g,r,i,z | IN BS | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Mon | Mar-23 | 5.2 | D D | 32% 0% | 19:33-05:27 05:27-05:57 | 4.6 / 9.9 0.0 / 0.0 | 1.0 0. | L17 L19 | Hemmelgarn Schleicher | Remote Remote | LMI LMI | u,g,r,i,z,VR r,CN | CS BS | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Tue | Mar-24 | 6.2 | b g D | 42% 44% 0% | 19:05-19:34 19:34-05:26 05:26-05:56 | 0.0 / 0.0 3.5 / 9.9 0.0 / 0.0 | 0. 1.0 0. | L06 L05 L06 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | I,VR,g,r,i,z VR,I,r I,VR,g,r,i,z | BM CS | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Wed | Mar-25 | 7.2 | g | 56% | 19:35-05:25 | 2.5 / 9.8 | 1.0 | B05 | Ould Rouis | Remote | DEVENY | DV2 (300g/mm,4000AA) | BM CS | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Thu | Mar-26 | 8.2 | g | 67% | 19:36-05:23 | 1.7 / 9.8 | 1.0 | L14 | Polanski | Remote | EXPRES | BM OW | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Fri | Mar-27 | 9.2 | g | 78% | 19:37-05:22 | 1.0 / 9.8 | 1.0 | L12 | Brasseur | Remote | EXPRES | IN OW | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Sat | Mar-28 | 10.2 | b | 86% | 19:38-05:20 | 0.4 / 9.7 | 1.0 | L12 | Brasseur | Remote | EXPRES | IN OW | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Sun | Mar-29 | 11.2 | b | 93% | 19:38-05:19 | 0.0 / 9.7 | 1.0 | L12 | Brasseur | Remote | EXPRES | IN BS | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Mon | Mar-30 | 12.2 | b | 97% | 19:39-05:17 | 0.0 / 9.6 | 1.0 | B02 | Dong | Remote | DEVENY | DV6 (Clear) | CS BS | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV6 (600g/mm,4900A) |
| Tue | Mar-31 | 13.2 | b b b | 99% 99% 100% | 19:40-00:28 00:28-02:52 02:52-05:16 | 0.0 / 4.8 0.0 / 2.4 0.0 / 2.4 | 0.5 0.25 0.25 | E01 L13 Y01 | Engineering Polanski Brewer | Remote Remote | LMI EXPRES EXPRES | r | BM BS | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| April 2026 - LDT | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DoW | Date | Moon days | Dark Code | Max moon Illum | Time Range (MST) | No moon/ night hrs | Frac night | Prog ID | Principal | Remote | Instrument | Requested Filters/Gratings | TO | Intended LMI Filter Setup | Intended DeVeny Grating |
| Wed | Apr-01 | 14.2 | b b b | 100% 100% 100% | 19:41-00:28 00:28-02:51 02:51-05:14 | 0.0 / 4.8 0.0 / 2.4 0.0 / 2.4 | 0.5 0.25 0.25 | E01 L14 Y01 | Engineering Polanski Brewer | Remote Remote | LMI EXPRES EXPRES | r | BM CS | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Thu | Apr-02 | 14.1 | b | 99% | 19:42-05:13 | 0.0 / 9.5 | 1.0 | L12 | Brasseur | Remote | EXPRES | BM OW | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Fri | Apr-03 | 13.1 | b b | 95% 94% | 19:43-05:11 05:11-05:41 | 0.6 / 9.5 0.0 / 0.0 | 1.0 0. | L12 L19 | Brasseur Schleicher | Remote Remote | EXPRES LMI | r,CN | IN OW | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sat | Apr-04 | 12.1 | g | 90% | 19:44-05:10 | 1.6 / 9.4 | 1.0 | L12 | Brasseur | Remote | EXPRES | IN OW | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Sun | Apr-05 | 11.1 | g | 84% | 19:45-05:08 | 2.6 / 9.4 | 1.0 | L14 | Polanski | Remote | EXPRES | IN BS | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Mon | Apr-06 | 10.1 | D g b b | 0% 76% 75% 75% | 19:45-22:05 22:05-02:47 02:47-05:07 05:07-05:37 | 1.8 / 2.3 1.7 / 4.7 0.0 / 2.3 0.0 / 0.0 | 0.25 0.5 0.25 0. | L08 L15 Y01 L19 | Zhang Minker Brewer Schleicher | Remote Remote Remote Remote | LMI,DEVENY,RIMAS QWSSI EXPRES LMI | H2O+,OH,NH,CN,C3,C2,RC,r,DV1 r,CN | CS BS | OPEN DARK H2O+ C2 C3 I R V B OH OPEN NH g r i z CN RC VR BC | DV1 (150g/mm,5000A) |
| Tue | Apr-07 | 9.1 | D g g | 0% 67% 66% | 19:46-22:06 22:06-02:46 02:46-05:06 | 1.8 / 2.3 2.6 / 4.7 0.0 / 2.3 | 0.25 0.5 0.25 | L08 L16 Y01 | Zhang Minker Brewer | Remote On-Site Remote | LMI,DEVENY,RIMAS LMI,RIMAS EXPRES | H2O+,OH,NH,CN,C3,C2,RC,r,DV1 U,B,V,R,I,g,r,i | CS BS | OPEN DARK H2O+ C2 C3 I R V B OH OPEN NH g r i U CN RC VR BC | DV1 (150g/mm,5000A) |
| Wed | Apr-08 | 8.1 | D | 58% | 19:47-05:04 | 5.2 / 9.3 | 1.0 | L12 | Brasseur | Remote | EXPRES | BM CS | OPEN DARK H2O+ C2 C3 I R V B OH OPEN NH g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Thu | Apr-09 | 7.1 | D | 48% | 19:48-05:03 | 5.9 / 9.2 | 1.0 | L12 | Brasseur | Remote | EXPRES | BM CS | OPEN DARK H2O+ C2 C3 I R V B OH OPEN NH g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Fri | Apr-10 | 6.1 | D g | 38% 37% | 19:49-05:01 05:01-05:32 | 6.5 / 9.2 0.0 / 0.0 | 1.0 0. | L12 L19 | Brasseur Schleicher | Remote Remote | EXPRES LMI | r,CN | IN ST | OPEN DARK H2O+ C2 C3 I R V B OH OPEN NH g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sat | Apr-11 | 5.1 | D D D | 0% 0% 28% | 19:50-22:08 22:08-02:42 02:42-05:00 | 1.8 / 2.3 4.6 / 4.6 0.6 / 2.3 | 0.25 0.5 0.25 | L08 N06 Y01 | Zhang Trujillo Brewer | Remote On-Site Remote | LMI,DEVENY,RIMAS LMI EXPRES | H2O+,OH,NH,CN,C3,C2,RC,r,DV1 VR,V,R,I,g,r,i | IN BS | OPEN DARK H2O+ C2 C3 I R V B OH OPEN NH g r i z CN RC VR BC | DV1 (150g/mm,5000A) |
| Sun | Apr-12 | 4.2 | D D D | 0% 0% 19% | 19:51-22:08 22:08-00:24 00:24-04:58 | 1.8 / 2.3 2.3 / 2.3 3.4 / 4.6 | 0.25 0.25 0.5 | L08 N05 L14 | Zhang Thomas Polanski | Remote Remote Remote | LMI,DEVENY,RIMAS LMI QWSSI | H2O+,OH,NH,CN,C3,C2,RC,r,DV1 VR,g,r,i,z | IN BS | OPEN DARK H2O+ C2 C3 I R V B OH OPEN NH g r i z CN RC VR BC | DV1 (150g/mm,5000A) |
| Mon | Apr-13 | 3.1 | b D D | 0% 11% 11% | 19:21-19:52 19:52-04:57 04:57-05:28 | 0.0 / 0.0 7.9 / 9.1 0.0 / 0.0 | 0. 1.0 0. | L06 L05 L19 | Thirouin Thirouin Schleicher | Remote Remote Remote | LMI LMI LMI | I,VR,g,r,i,z VR,I,r r,CN | CS BS | OPEN DARK H2O+ C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Tue | Apr-14 | 2.1 | D | 5% | 19:53-04:56 | 8.0 / 9.1 | 1.0 | L01 | Wasserman | Remote | LMI | VR | BM CS | OPEN DARK H2O+ C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Wed | Apr-15 | 1.1 | b D D | 0% 0% 0% | 19:23-19:54 19:54-04:54 04:54-05:25 | 0.0 / 0.0 8.0 / 9.0 0.0 / 0.0 | 0. 1.0 0. | L06 L03 L06 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | I,VR,g,r,i,z VR,g,r,i,z,I I,VR,g,r,i,z | BM CS | OPEN DARK H2O+ C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Thu | Apr-16 | 0.2 | D D D D | 0% 0% 0% 0% | 19:55-21:02 21:02-23:17 23:17-03:46 03:46-04:53 | 0.6 / 1.1 2.2 / 2.2 4.5 / 4.5 0.6 / 1.1 | 0.12 0.25 0.5 0.12 | E01 W01 L15 L08 | Engineering Zackay Minker Zhang | Remote Remote Remote | LMI QWSSI QWSSI LMI | r CO+,H2O+,CN,C3,C2,BC,RC,r | BM OW | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Fri | Apr-17 | 0.8 | D D D D | 0% 0% 0% 0% | 19:56-22:10 22:10-02:37 02:37-04:51 04:51-05:22 | 1.7 / 2.2 4.5 / 4.5 1.7 / 2.2 0.0 / 0.0 | 0.25 0.5 0.25 0. | E01 L07 E01 L19 | Engineering Sikora Engineering Schleicher | Remote Remote | LMI RIMAS LMI LMI | r r r,CN | IN OW | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sat | Apr-18 | 1.8 | D D D | 4% 0% 0% | 19:56-00:23 00:23-03:43 03:43-04:50 | 3.5 / 4.5 3.3 / 3.3 0.6 / 1.1 | 0.5 0.37 0.13 | N06 Y01 L08 | Trujillo Brewer Zhang | On-Site Remote Remote | LMI EXPRES LMI | VR,V,R,I,g,r,i CO+,H2O+,CN,C3,C2,BC,RC,r | IN BS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sun | Apr-19 | 2.8 | D D D | 10% 0% 0% | 19:57-00:23 00:23-03:43 03:43-04:49 | 2.2 / 4.4 3.3 / 3.3 0.6 / 1.1 | 0.5 0.38 0.12 | N06 E01 L08 | Trujillo Engineering Zhang | On-Site Remote | LMI LMI LMI | VR,V,R,I,g,r,i r CO+,H2O+,CN,C3,C2,BC,RC,r | IN BS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Mon | Apr-20 | 3.8 | D D D | 19% 19% 0% | 19:58-22:10 22:10-04:47 04:47-05:19 | 0.0 / 2.2 5.0 / 6.6 0.0 / 0.0 | 0.25 0.75 0. | E01 L10 L19 | Engineering Llama Schleicher | Remote Remote | LMI EXPRES LMI | r r,CN | CS BS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Tue | Apr-21 | 4.8 | g g D | 29% 29% 0% | 19:59-22:11 22:11-00:23 00:23-04:46 | 0.0 / 2.2 0.0 / 2.2 3.9 / 4.4 | 0.25 0.25 0.5 | E01 L18 N01 | Engineering Kareta Farrell | Remote On-Site | LMI LMI LMI | r g,r,i,z,CN,VR VR,V,R,I,g,r,i | BM CS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Wed | Apr-22 | 5.8 | g D | 40% 41% | 20:00-00:22 00:22-04:45 | 0.0 / 4.4 3.0 / 4.4 | 0.5 0.5 | E01 M03 | Engineering Bauer | Remote | LMI LMI | r g,r,CO+,VR,OH,CN,BC,RC,C2,C3 | BM CS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Thu | Apr-23 | 6.8 | g g D | 52% 52% 0% | 20:01-00:22 00:22-02:33 02:33-04:43 | 0.0 / 4.3 0.7 / 2.2 1.6 / 2.2 | 0.5 0.25 0.25 | N02 Y01 B07 | Emery Brewer Ye | Remote Remote Remote | DEVENY EXPRES EXPRES | DV1 (150g/mm) | BM OW | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV1 (150g/mm,5000A) |
| Fri | Apr-24 | 7.8 | g g D | 63% 63% 0% | 20:02-00:22 00:22-04:42 04:42-05:14 | 0.0 / 4.3 1.7 / 4.3 0.0 / 0.0 | 0.5 0.5 0. | N03 N07 L19 | Madden-Watson Clark Schleicher | Remote Remote Remote | DEVENY LMI LMI | DV1 g,r,i,z r,CN | BS OW | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV1 (150g/mm,5000A) |
| Sat | Apr-25 | 8.8 | b b b D | 72% 73% 73% 74% | 20:03-22:13 22:13-00:22 00:22-02:31 02:31-04:41 | 0.0 / 2.2 0.0 / 2.1 0.0 / 2.1 1.2 / 2.2 | 0.25 0.25 0.25 0.25 | E01 L13 Y01 L19 | Engineering Polanski Brewer Schleicher | Remote Remote Remote | LMI EXPRES EXPRES LMI | r r,CN,OH | BS OW | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sun | Apr-26 | 9.8 | g | 82% | 20:04-04:39 | 0.7 / 8.6 | 1.0 | E01 | Engineering | LMI | r | BM BS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Mon | Apr-27 | 10.8 | b b g D | 89% 89% 90% 0% | 20:05-00:22 00:22-02:30 02:30-04:38 04:38-05:10 | 0.0 / 4.3 0.0 / 2.1 0.3 / 2.1 0.0 / 0.0 | 0.5 0.25 0.25 0. | E01 L14 Y01 L19 | Engineering Polanski Brewer Schleicher | Remote Remote Remote | LMI EXPRES EXPRES LMI | r r,CN | CS BS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Tue | Apr-28 | 11.8 | b b b | 94% 95% 95% | 20:06-22:14 22:14-02:29 02:29-04:37 | 0.0 / 2.1 0.0 / 4.2 0.0 / 2.1 | 0.25 0.5 0.25 | E01 L14 Y01 | Engineering Polanski Brewer | Remote Remote | LMI QWSSI EXPRES | r | BM CS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Wed | Apr-29 | 12.8 | b b | 98% 98% | 20:07-02:28 02:28-04:35 | 0.0 / 6.3 0.0 / 2.1 | 0.75 0.25 | E01 Y01 | Engineering Brewer | Remote | LMI EXPRES | r | BM CS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Thu | Apr-30 | 13.8 | b b | 100% 100% | 20:08-02:28 02:28-04:34 | 0.0 / 6.3 0.0 / 2.1 | 0.75 0.25 | E01 Y01 | Engineering Brewer | Remote | LMI EXPRES | r | BM OW | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| May 2026 - LDT | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DoW | Date | Moon days | Dark Code | Max moon Illum | Time Range (MST) | No moon/ night hrs | Frac night | Prog ID | Principal | Remote | Instrument | Requested Filters/Gratings | TO | Intended LMI Filter Setup | Intended DeVeny Grating |
| Fri | May-01 | 14.5 | b b | 100% 99% | 20:09-04:33 04:33-05:05 | 0.0 / 8.4 0.0 / 0.0 | 1.0 0. | E01 L19 | Engineering Schleicher | Remote | LMI LMI | r r,CN | IN OW | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sat | May-02 | 13.5 | b b | 98% 97% | 20:10-02:26 02:26-04:32 | 0.0 / 6.3 0.0 / 2.1 | 0.75 0.25 | E01 Y01 | Engineering Brewer | Remote | LMI EXPRES | r | IN OW | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sun | May-03 | 12.5 | g b b | 94% 94% 93% | 20:11-00:21 00:21-02:26 02:26-04:31 | 0.9 / 4.2 0.0 / 2.1 0.0 / 2.1 | 0.5 0.25 0.25 | L20 L13 Y01 | Levine Polanski Brewer | Remote Remote Remote | GWAVES,LMI,POETS EXPRES EXPRES | VR | IN BS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Mon | May-04 | 11.5 | g b | 89% 88% | 20:12-04:29 04:29-05:02 | 1.8 / 8.3 0.0 / 0.0 | 1.0 0. | E01 L19 | Engineering Schleicher | Remote | LMI LMI | r r,CN | CS BS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Tue | May-05 | 10.5 | D b b | 82% 81% 81% | 20:13-00:20 00:20-02:24 02:24-04:28 | 2.6 / 4.1 0.0 / 2.1 0.0 / 2.1 | 0.5 0.25 0.25 | E01 L14 Y01 | Engineering Polanski Brewer | Remote Remote | LMI EXPRES EXPRES | r | BM BS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Wed | May-06 | 9.5 | b g b | 0% 74% 73% | 19:41-20:14 20:14-04:27 04:27-05:00 | 0.0 / 0.0 3.3 / 8.2 0.0 / 0.0 | 0. 1.0 0. | L06 L03 L06 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | I,VR,g,r,i,z VR,g,r,i,z,I I,VR,g,r,i,z | BM CS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Thu | May-07 | 8.5 | D g | 0% 65% | 20:15-00:20 00:20-04:26 | 3.5 / 4.1 0.4 / 4.1 | 0.5 0.5 | L20 E01 | Levine Engineering | Remote | GWAVES,LMI,POETS LMI | VR,RC,r r | BM OW | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Fri | May-08 | 7.5 | D g | 55% 54% | 20:16-04:25 04:25-04:58 | 4.5 / 8.2 0.0 / 0.0 | 1.0 0. | B05 L19 | Ould Rouis Schleicher | Remote Remote | DEVENY LMI | DV2 (300g/mm,4000AA) r,CN | IN OW | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sat | May-09 | 6.5 | D | 45% | 20:17-04:24 | 4.9 / 8.1 | 1.0 | L17 | Hemmelgarn | Remote | LMI | u,g,r,i,z,VR | IN OW | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sun | May-10 | 5.5 | D D g | 0% 34% 34% | 20:18-22:19 22:19-02:22 02:22-04:23 | 1.4 / 2.0 4.0 / 4.0 0.0 / 2.0 | 0.25 0.5 0.25 | W01 L14 E01 | Zackay Polanski Engineering | Remote Remote | QWSSI QWSSI LMI | r | IN BS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Mon | May-11 | 4.5 | D D | 0% 25% | 20:19-00:21 00:21-04:22 | 3.4 / 4.0 2.4 / 4.0 | 0.5 0.5 | L20 E01 | Levine Engineering | Remote | GWAVES,LMI,POETS LMI | VR,RC,r r | CS BS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Tue | May-12 | 3.5 | b D D | 0% 16% 15% | 19:46-20:20 20:20-04:21 04:21-04:55 | 0.0 / 0.0 6.2 / 8.0 0.0 / 0.0 | 0. 1.0 0. | L06 L04 L19 | Thirouin Thirouin Schleicher | Remote Remote Remote | LMI LMI LMI | I,VR,g,r,i,z VR,g,r,i,z,I r,CN | CS BS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Wed | May-13 | 2.5 | b D D | 0% 8% 8% | 19:47-20:21 20:21-04:20 04:20-04:54 | 0.0 / 0.0 6.7 / 8.0 0.0 / 0.0 | 0. 1.0 0. | L06 L03 L06 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | I,VR,g,r,i,z VR,g,r,i,z,I I,VR,g,r,i,z | BM CS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Thu | May-14 | 1.5 | D | 3% | 20:22-04:19 | 6.8 / 8.0 | 1.0 | B01 | Guidry | Remote | LMI | g | BM OW | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Fri | May-15 | 0.5 | D D D D | 0% 0% 0% 0% | 20:23-22:22 22:22-00:20 00:20-04:18 04:18-04:52 | 1.4 / 2.0 2.0 / 2.0 3.4 / 4.0 0.0 / 0.0 | 0.25 0.25 0.5 0. | E01 N05 L20 L19 | Engineering Thomas Levine Schleicher | Remote Remote Remote | LMI LMI GWAVES,LMI,POETS LMI | r VR,g,r,i,z VR r,CN | IN OW | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sat | May-16 | 0.5 | D | 0% | 20:24-04:17 | 6.7 / 7.9 | 1.0 | L01 | Wasserman | Remote | LMI | VR | IN OW | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sun | May-17 | 1.5 | D | 3% | 20:25-04:16 | 6.7 / 7.8 | 1.0 | B05 | Ould Rouis | Remote | DEVENY | DV2 (300g/mm,4000AA) | IN BS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Mon | May-18 | 2.5 | D D | 8% 0% | 20:26-04:15 04:15-04:50 | 5.5 / 7.8 0.0 / 0.0 | 1.0 0. | B05 L19 | Ould Rouis Schleicher | Remote Remote | DEVENY LMI | DV2 (300g/mm,4000AA) r,CN | CS BS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Tue | May-19 | 3.5 | D D D | 16% 16% 0% | 20:26-22:23 22:23-00:21 00:21-04:15 | 0.0 / 1.9 1.3 / 2.0 3.3 / 3.9 | 0.25 0.25 0.5 | E01 Y01 L19 | Engineering Brewer Schleicher | Remote Remote | LMI EXPRES LMI | r r,CN,OH | BM CS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Wed | May-20 | 4.5 | D D | 26% 0% | 20:27-00:20 00:20-04:14 | 0.5 / 3.9 3.3 / 3.9 | 0.5 0.5 | E01 M02 | Engineering Stein | Remote | LMI DEVENY,LMI | r u,g,r,i,z,DV2 (300g/mm,4000A) | BM CS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Thu | May-21 | 5.5 | D D | 37% 0% | 20:28-02:17 02:17-04:13 | 1.8 / 5.8 1.3 / 1.9 | 0.75 0.25 | E01 L18 | Engineering Kareta | Remote | LMI LMI | r g,r,i,z,CN,VR | BM OW | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Fri | May-22 | 6.5 | g g D D | 47% 48% 48% 0% | 20:29-22:25 22:25-00:21 00:21-04:12 04:12-04:47 | 0.0 / 1.9 0.0 / 1.9 2.6 / 3.9 0.0 / 0.0 | 0.25 0.25 0.5 0. | E01 Y01 N01 L19 | Engineering Brewer Farrell Schleicher | Remote On-Site Remote | LMI EXPRES LMI LMI | r VR,V,R,I,g,r,i r,CN | IN OW | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sat | May-23 | 7.5 | g g D | 58% 58% 59% | 20:30-22:26 22:26-00:21 00:21-04:12 | 0.0 / 1.9 0.0 / 1.9 2.1 / 3.9 | 0.25 0.25 0.5 | Y01 L13 L14 | Brewer Polanski Polanski | Remote Remote Remote | EXPRES EXPRES EXPRES | IN BS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Sun | May-24 | 8.5 | g g | 68% 69% | 20:31-00:21 00:21-04:11 | 0.0 / 3.8 1.7 / 3.8 | 0.5 0.5 | E01 L07 | Engineering Sikora | Remote | LMI RIMAS | r | IN BS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Mon | May-25 | 9.5 | g D | 78% 0% | 20:32-04:10 04:10-04:45 | 1.2 / 7.6 0.0 / 0.0 | 1.0 0. | E01 L19 | Engineering Schleicher | Remote | LMI LMI | r r,CN | CS BS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Tue | May-26 | 10.5 | b b D | 85% 86% 86% | 19:24-21:03 21:03-02:16 02:16-04:10 | 0.0 / 0.5 0.0 / 5.2 0.8 / 1.9 | 0.07 0.68 0.25 | L08 E01 Y01 | Zhang Engineering Brewer | Remote Remote | LMI LMI EXPRES | CN,C3,C2,RC,r r | BM CS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Wed | May-27 | 11.5 | b b g | 91% 92% 92% | 19:25-21:03 21:03-02:15 02:15-04:09 | 0.0 / 0.5 0.0 / 5.2 0.3 / 1.9 | 0.07 0.68 0.25 | L08 E01 Y01 | Zhang Engineering Brewer | Remote Remote | LMI LMI EXPRES | CN,C3,C2,RC,r r | BM CS | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Thu | May-28 | 12.5 | b b b b | 96% 96% 96% 96% | 19:26-21:04 21:04-00:22 00:22-02:14 02:14-04:08 | 0.0 / 0.5 0.0 / 3.3 0.0 / 1.9 0.0 / 1.9 | 0.07 0.44 0.25 0.25 | L08 E01 L14 Y01 | Zhang Engineering Polanski Brewer | Remote Remote Remote | LMI LMI EXPRES EXPRES | CN,C3,C2,RC,r r | BM OW | OPEN DARK H2O+ C2 C3 I R V CO+ OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Fri | May-29 | 13.5 | b b b b | 99% 99% 99% 99% | 20:35-00:22 00:22-02:15 02:15-04:08 04:08-04:43 | 0.0 / 3.8 0.0 / 1.9 0.0 / 1.9 0.0 / 0.0 | 0.5 0.25 0.25 0. | E01 L13 Y01 L19 | Engineering Polanski Brewer Schleicher | Remote Remote Remote | LMI EXPRES EXPRES LMI | r r,CN | IN OW | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sat | May-30 | 14.5 | b | 100% | 20:36-04:07 | 0.0 / 7.5 | 1.0 | E01 | Engineering | LMI | r | BS OW | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Sun | May-31 | 13.9 | b b | 99% 100% | 20:37-04:07 04:07-04:07 | 0.0 / 7.5 0.0 / 0.0 | 1.0 0. | B04 tbd | Zamudio Ruvalcaba | On-Site | DEVENY,LMI,RIMAS | U,B,V,R,I,DV2 | IN BS | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| June 2026 - LDT | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DoW | Date | Moon days | Dark Code | Max moon Illum | Time Range (MST) | No moon/ night hrs | Frac night | Prog ID | Principal | Remote | Instrument | Requested Filters/Gratings | TO | Intended LMI Filter Setup | Intended DeVeny Grating |
| Mon | Jun-01 | 12.9 | b | 97% | 20:37-04:07 | 0.1 / 7.5 | 1.0 | B04 | Zamudio Ruvalcaba | On-Site | DEVENY,LMI,RIMAS | U,B,V,R,I,DV2 | CS BS | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Tue | Jun-02 | 11.9 | b | 92% | 20:38-04:06 | 0.8 / 7.5 | 1.0 | B04 | Zamudio Ruvalcaba | On-Site | DEVENY,LMI,RIMAS | U,B,V,R,I,DV2 | BM CS | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Wed | Jun-03 | 10.9 | g | 87% | 20:39-04:06 | 1.4 / 7.5 | 1.0 | Y01 | Brewer | Remote | EXPRES | BM CS | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Thu | Jun-04 | 9.9 | g | 79% | 20:40-04:05 | 2.0 / 7.4 | 1.0 | B04 | Zamudio Ruvalcaba | On-Site | DEVENY,LMI,RIMAS | U,B,V,R,I,DV9 | BM OW | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV9 (1200g/mm,5000A) |
| Fri | Jun-05 | 8.9 | g | 71% | 20:40-04:05 | 2.5 / 7.4 | 1.0 | B04 | Zamudio Ruvalcaba | On-Site | DEVENY,LMI,RIMAS | U,B,V,R,I,DV9 | IN OW | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV9 (1200g/mm,5000A) |
| Sat | Jun-06 | 7.9 | D g g | 61% 61% 60% | 20:41-00:23 00:23-02:14 02:14-04:05 | 3.0 / 3.7 0.0 / 1.9 0.0 / 1.9 | 0.5 0.25 0.25 | E01 Y01 L14 | Engineering Brewer Polanski | Remote Remote | LMI EXPRES EXPRES | r | IN OW | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sun | Jun-07 | 6.9 | D | 51% | 20:41-04:05 | 3.4 / 7.4 | 1.0 | Y01 | Brewer | Remote | EXPRES | IN BS | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Mon | Jun-08 | 5.9 | D D g g | 0% 40% 39% 39% | 20:42-00:24 00:24-02:14 02:14-04:04 04:04-04:41 | 3.0 / 3.7 0.8 / 1.8 0.0 / 1.8 0.0 / 0.0 | 0.5 0.25 0.25 0. | E01 Y01 E01 L19 | Engineering Brewer Engineering Schleicher | Remote Remote | LMI EXPRES LMI LMI | r r r,CN | CS BS | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Tue | Jun-09 | 4.9 | D D g | 0% 29% 29% | 20:43-00:24 00:24-02:14 02:14-04:04 | 3.0 / 3.7 1.2 / 1.8 0.0 / 1.8 | 0.5 0.25 0.25 | L20 L18 E01 | Levine Kareta Engineering | Remote Remote | GWAVES,LMI,POETS LMI LMI | VR,RC,r g,r,i,z,CN,VR r | BM BS | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Wed | Jun-10 | 3.9 | D D | 0% 19% | 20:43-00:24 00:24-04:04 | 3.0 / 3.7 1.7 / 3.7 | 0.5 0.5 | E01 N04 | Engineering Cantelas | Remote | LMI LMI | r g,r,i,z | BM CS | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Thu | Jun-11 | 2.9 | b D D | 0% 11% 10% | 20:07-20:44 20:44-04:04 04:04-04:40 | 0.0 / 0.0 5.3 / 7.3 0.0 / 0.0 | 0. 1.0 0. | L06 L04 L06 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | I,VR,g,r,i,z VR,g,r,i,z,I I,VR,g,r,i,z | BM OW | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Fri | Jun-12 | 1.9 | b D D | 0% 4% 4% | 20:08-20:44 20:44-04:04 04:04-04:40 | 0.0 / 0.0 6.0 / 7.3 0.0 / 0.0 | 0. 1.0 0. | L06 L03 L06 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | I,VR,g,r,i,z VR,g,r,i,z,I I,VR,g,r,i,z | IN OW | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sat | Jun-13 | 0.9 | D D | 0% 0% | 20:45-00:24 00:24-04:04 | 3.0 / 3.6 3.0 / 3.7 | 0.5 0.5 | L01 L07 | Wasserman Sikora | Remote Remote | LMI RIMAS | VR | IN OW | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sun | Jun-14 | 0.1 | D D | 0% 0% | 20:45-00:24 00:24-04:04 | 3.0 / 3.6 3.0 / 3.7 | 0.5 0.5 | E01 L16 | Engineering Minker | Remote | LMI LMI,RIMAS | r U,B,V,R,I,g,r,i | IN BS | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Mon | Jun-15 | 1.1 | D | 2% | 20:46-04:04 | 6.0 / 7.3 | 1.0 | L14 | Polanski | Remote | EXPRES | CS BS | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Tue | Jun-16 | 2.1 | D | 6% | 20:46-04:04 | 5.7 / 7.3 | 1.0 | L17 | Hemmelgarn | Remote | LMI | u,g,r,i,z,VR | CS BS | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Wed | Jun-17 | 3.1 | D D | 13% 0% | 20:46-00:25 00:25-04:04 | 2.0 / 3.6 3.0 / 3.6 | 0.5 0.5 | L20 E01 | Levine Engineering | Remote | GWAVES,LMI,POETS LMI | VR,RC,r r | BM CS | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Thu | Jun-18 | 4.1 | b D D | 22% 22% 0% | 20:10-20:47 20:47-04:04 04:04-04:41 | 0.0 / 0.0 4.4 / 7.3 0.0 / 0.0 | 0. 1.0 0. | L06 L03 L06 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | I,VR,g,r,i,z VR,g,r,i,z,I I,VR,g,r,i,z | BM OW | OPEN DARK H2O+ C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Fri | Jun-19 | 5.1 | g D D | 32% 32% 0% | 20:47-22:36 22:36-00:26 00:26-04:04 | 0.0 / 1.8 0.9 / 1.8 3.0 / 3.6 | 0.25 0.25 0.5 | E01 Y01 L19 | Engineering Brewer Schleicher | Remote Remote | LMI EXPRES LMI | r r,CN,OH | IN OW | OPEN DARK H2O+ C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sat | Jun-20 | 6.1 | g g D D | 42% 43% 0% 0% | 20:47-21:42 21:42-00:26 00:26-02:15 02:15-04:05 | 0.0 / 0.9 0.5 / 2.7 1.8 / 1.8 1.2 / 1.8 | 0.13 0.37 0.25 0.25 | L08 E01 Y01 B07 | Zhang Engineering Brewer Ye | Remote Remote Remote | LMI LMI EXPRES EXPRES | g,r,i r | IN OW | OPEN DARK H2O+ C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sun | Jun-21 | 7.1 | g | 54% | 20:47-04:05 | 3.1 / 7.3 | 1.0 | L10 | Llama | Remote | EXPRES | IN BS | OPEN DARK H2O+ C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Mon | Jun-22 | 8.1 | g D D | 64% 64% 0% | 20:47-00:27 00:27-02:15 02:15-04:05 | 0.0 / 3.7 1.5 / 1.8 1.2 / 1.8 | 0.5 0.25 0.25 | N03 Y01 L13 | Madden-Watson Brewer Polanski | Remote Remote Remote | DEVENY EXPRES EXPRES | DV1 | CS BS | OPEN DARK H2O+ C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV1 (150g/mm,5000A) |
| Tue | Jun-23 | 9.1 | b g | 72% 73% | 20:48-22:37 22:37-04:05 | 0.0 / 1.8 2.2 / 5.5 | 0.25 0.75 | E01 L14 | Engineering Polanski | Remote | LMI EXPRES | r | BM CS | OPEN DARK H2O+ C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Wed | Jun-24 | 10.1 | b b b g D | 80% 80% 81% 81% 0% | 20:48-21:43 21:43-22:38 22:38-00:27 00:27-02:16 02:16-04:06 | 0.0 / 0.9 0.0 / 0.9 0.0 / 1.8 0.6 / 1.8 1.2 / 1.8 | 0.13 0.13 0.25 0.25 0.25 | L08 E01 L14 Y01 L18 | Zhang Engineering Polanski Brewer Kareta | Remote Remote Remote Remote | LMI LMI EXPRES EXPRES LMI | g,r,i r g,r,i,z,CN,VR | BM CS | OPEN DARK H2O+ C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Thu | Jun-25 | 11.1 | b b g | 87% 88% 88% | 20:48-21:43 21:43-00:27 00:27-04:06 | 0.0 / 0.9 0.0 / 2.7 1.2 / 3.6 | 0.13 0.37 0.5 | L08 Y01 W02 | Zhang Brewer Hallakoun | Remote Remote Remote | LMI EXPRES EXPRES | g,r,i | BM OW | OPEN DARK H2O+ C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Fri | Jun-26 | 12.1 | b | 94% | 20:48-04:06 | 0.5 / 7.3 | 1.0 | E01 | Engineering | LMI | r | IN OW | OPEN DARK H2O+ C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Sat | Jun-27 | 13.1 | b b b | 97% 97% 97% | 20:48-21:43 21:43-02:17 02:17-04:07 | 0.0 / 0.9 0.0 / 4.6 0.0 / 1.8 | 0.13 0.62 0.25 | L08 E01 Y01 | Zhang Engineering Brewer | Remote Remote | LMI LMI EXPRES | g,r,i r | IN BS | OPEN DARK H2O+ C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Sun | Jun-28 | 14.1 | b | 99% | 20:48-04:07 | 0.0 / 7.3 | 1.0 | L14 | Polanski | Remote | EXPRES | IN BS | OPEN DARK H2O+ C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| Mon | Jun-29 | 14.1 | b b | 100% 100% | 20:48-04:08 04:08-04:44 | 0.0 / 7.3 0.0 / 0.0 | 1.0 0. | E01 L19 | Engineering Schleicher | Remote | LMI LMI | r r,CN | CS BS | OPEN DARK H2O+ C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Tue | Jun-30 | 13.1 | b b b | 99% 98% 98% | 20:48-21:43 21:43-02:18 02:18-04:08 | 0.0 / 0.9 0.0 / 4.6 0.0 / 1.8 | 0.12 0.62 0.25 | L08 E01 Y01 | Zhang Engineering Brewer | Remote Remote | LMI LMI EXPRES | g,r,i r | BM CS | OPEN DARK H2O+ C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
Note: Half-night handover times are calculated for local astronomical midnight.
Note: Nominal night duration is from Nautical Twilight (12deg) to Nautical Twilight.
Program ID codes: L=Lowell, B=BU, G=UT/KASI(IGRINS), M=UMd/GSFC, N=NAU, T=UToledo, W=Weizmann, X=External, Y=Yale, E=Engineering
Dark code (D=dark, g=gray, b=bright) methodology: At a time resolution of 1 minute, calculate the fractional illumination of the moon for the allocated time (ignoring time during astronomical/nautical/civil twilights & setting to zero for when the moon is below the horizon). Determine the dark code from the mean value of this metric where D=dark for <={0}, g=gray for <={1}, and b=bright for >0.7.
Remote: If entry is "Remote Requested", then remote observing request is pending and not yet approved. If entry is "Remote" then remote request is approved. If entry is blank, or is "On-Site", then observers are expected to be on-site at LDT.
Bolded red items are Time Critical Observations, during which ToO interrupts will not be accepted.
Italicized gray items are engineering optional interrupts (EOI) for brief testing. Principal will be notified before the start of the prior night if any of this time will be used for a quick engineering test.
| 2026A Approved Target of Opportunity (ToO) Programs | |||||
|---|---|---|---|---|---|
| Program ID | Principal | ToO Type | Time Allocated (hours) | Time Remaining (hours) | Requested Instrument & Filters/Grating |
| B07 | Ye | Slow | 6.00 | 6.00 | EXPRES,DEVENY: DV2 |
| L06 | Thirouin | Slow | 4.00 | 3.50 | LMI: I,VR,g,r,i,z |
| L08 | Zhang | Slow | 8.00 | 4.50 | LMI,DEVENY,EXPRES: CO+,H2O+,CN,C3,C2,BC,RC,g,r,i,VR |
| L11 | Moskovitz | Slow | 6.00 | 3.50 | DEVENY,LMI,NIHTS,RIMAS: u,g,r,i,z,VR,DV1 (150g/mm - preferred) or DV2 (300g/mm) |
| M01 | Rastinejad | Slow | 9.00 | 7.00 | DEVENY,LMI,RIMAS: u,g,r,i,z,YJHK,DV2 (300g/mm,4000A) |
| M04 | Ye | Slow | 3.00 | 3.00 | LMI,RIMAS,DEVENY: OH,CN,BC,RC,or DV2 (300g/mm) |
| M05 | Ye | Slow | 4.00 | 4.00 | DEVENY,LMI: r,DV2 |
| W04 | Garrappa | Rapid | 2.00 | 2.00 | DEVENY: DV2 |
| W05 | Zimmerman | Rapid | 1.00 | 0.00 | DEVENY: DV5 |
| W05 | Zimmerman | Rapid | 9.00 | 6.50 | DEVENY: DV2 |
| Totals | 52.00 | 40.00 | |||
On nights when the DeVeny is not in use, it should be left in the following configuration in order to be ready for ToO programs:
Grating: DV2 (300 lines / mm, 4000A blaze) Grating tilt: 22.28 Collimator Focus: 11.25 mm Slit Width: 1.5" (0.23 mm) Rear Filter Wheel: Clear Front Filter Wheel: Clear
Targets of Opportunity (ToO) requests: 1) will only be accepted for approved ToO programs. 2) will not be accepted during any Time Critical Observation (TCO). 3) May be requested during engineering time (programs designated ENN), but will be accepted, delayed, or rejected at the discretion of the Principal or Lead Engineer for that engineering time. Click here to link to LDT policies regarding ToO programs.
Operations Staff (Position) email at lowell.edu:
Timothy Ellsworth-Bowers (SuppAst) TB; tbowers@
Kyler Kuehn (DirTech) KK; kkuehn@
Stephen Levine (Ast/TelSci) SL; sel@
Beck Maier (TelOp) BM; emaier@
Ishara Nisley (TelOp) IN; inisley@
Observer (Observer) OBS;
Safety Tech (Safety Tech) ST;
Ben Shafransky (TelOp) BS; bshafransky@
Cecilia Siqueiros (TelOp) CS; csiqueiros@
Kathryn Turrentine (Safety) KT; kturrentine@
Visitor (Visitor) VST;
Olivia Weiss (TelOp) OW; oweiss@
Summary of dates on which approved programs are scheduled (note some dates are partial nights):
B01 Guidry 2026-01-16, 2026-03-18, 2026-05-14
B02 Dong 2026-02-22, 2026-02-27, 2026-03-07, 2026-03-30
B03 Schmidt 2026-01-15, 2026-01-22, 2026-01-24
B04 Zamudio Ruvalcaba 2026-05-31, 2026-06-01, 2026-06-02, 2026-06-04, 2026-06-05
B05 Ould Rouis 2026-03-25, 2026-05-08, 2026-05-17, 2026-05-18
B06 Muirhead 2026-01-29, 2026-01-30, 2026-01-31
B07 Ye 2026-01-23, 2026-03-11, 2026-04-23, 2026-06-20
L01 Wasserman 2026-01-10, 2026-02-15, 2026-03-12, 2026-04-14, 2026-05-16, 2026-06-13
L02 Grundy 2026-01-11, 2026-01-18, 2026-02-12, 2026-02-19, 2026-03-13
L03 Thirouin 2026-01-17, 2026-01-26, 2026-02-08, 2026-02-18, 2026-03-22, 2026-04-15
2026-05-06, 2026-05-13, 2026-06-12, 2026-06-18
L04 Thirouin 2026-02-14, 2026-03-21, 2026-05-12, 2026-06-11
L05 Thirouin 2026-03-14, 2026-03-24, 2026-04-13
L06 Thirouin 2026-01-11, 2026-01-17, 2026-01-18, 2026-01-26, 2026-02-08, 2026-02-12
2026-02-14, 2026-02-18, 2026-02-19, 2026-03-04, 2026-03-13, 2026-03-14
2026-03-21, 2026-03-22, 2026-03-24, 2026-04-13, 2026-04-15, 2026-05-06
2026-05-12, 2026-05-13, 2026-06-11, 2026-06-12, 2026-06-18
L07 Sikora 2026-01-20, 2026-02-13, 2026-03-08, 2026-04-17, 2026-05-24, 2026-06-13
L08 Zhang 2026-01-14, 2026-02-06, 2026-02-11, 2026-02-13, 2026-02-15, 2026-02-28
2026-03-15, 2026-03-16, 2026-03-17, 2026-03-20, 2026-04-06, 2026-04-07
2026-04-11, 2026-04-12, 2026-04-16, 2026-04-18, 2026-04-19, 2026-05-26
2026-05-27, 2026-05-28, 2026-06-20, 2026-06-24, 2026-06-25, 2026-06-27
2026-06-30
L09 Llama 2026-01-19, 2026-01-20, 2026-01-21, 2026-01-22, 2026-01-23
L10 Llama 2026-02-16, 2026-04-20, 2026-06-21
L11 Moskovitz 2026-03-02, 2026-03-18
L12 Brasseur 2026-03-27, 2026-03-28, 2026-03-29, 2026-04-02, 2026-04-03, 2026-04-04
2026-04-08, 2026-04-09, 2026-04-10
L13 Polanski 2026-01-01, 2026-01-25, 2026-02-02, 2026-02-23, 2026-02-26, 2026-03-09
2026-03-31, 2026-04-25, 2026-05-03, 2026-05-23, 2026-05-29, 2026-06-22
L14 Polanski 2026-01-04, 2026-01-07, 2026-01-08, 2026-01-23, 2026-01-28, 2026-02-05
2026-02-23, 2026-02-25, 2026-03-01, 2026-03-03, 2026-03-06, 2026-03-09
2026-03-10, 2026-03-19, 2026-03-26, 2026-04-01, 2026-04-05, 2026-04-12
2026-04-27, 2026-04-28, 2026-05-05, 2026-05-10, 2026-05-23, 2026-05-28
2026-06-06, 2026-06-15, 2026-06-23, 2026-06-24, 2026-06-28
L15 Minker 2026-04-06, 2026-04-16
L16 Minker 2026-02-11, 2026-03-17, 2026-04-07, 2026-06-14
L17 Hemmelgarn 2026-01-12, 2026-02-07, 2026-03-23, 2026-05-09, 2026-06-16
L18 Kareta 2026-01-24, 2026-02-21, 2026-03-08, 2026-03-19, 2026-04-21, 2026-05-21
2026-06-09, 2026-06-24
L19 Schleicher 2026-02-11, 2026-02-21, 2026-03-03, 2026-03-13, 2026-03-20, 2026-03-23
2026-04-03, 2026-04-06, 2026-04-10, 2026-04-13, 2026-04-17, 2026-04-20
2026-04-24, 2026-04-25, 2026-04-27, 2026-05-01, 2026-05-04, 2026-05-08
2026-05-12, 2026-05-15, 2026-05-18, 2026-05-19, 2026-05-22, 2026-05-25
2026-05-29, 2026-06-08, 2026-06-19, 2026-06-29
L20 Levine 2026-01-19, 2026-05-03, 2026-05-07, 2026-05-11, 2026-05-15, 2026-06-09
2026-06-17
M01 Rastinejad 2026-02-25, 2026-03-02, 2026-03-04, 2026-03-11
M02 Stein 2026-02-06, 2026-03-15, 2026-05-20
M03 Bauer 2026-01-13, 2026-04-22
M04 Ye 2026-01-25, 2026-02-09
M05 Ye
N01 Farrell 2026-02-10, 2026-04-21, 2026-05-22
N02 Emery 2026-02-05, 2026-03-11, 2026-04-23
N03 Madden-Watson 2026-01-09, 2026-02-10, 2026-02-24, 2026-04-24, 2026-06-22
N04 Cantelas 2026-01-14, 2026-06-10
N05 Thomas 2026-02-21, 2026-04-12, 2026-05-15
N06 Trujillo 2026-04-11, 2026-04-18, 2026-04-19
N07 Clark 2026-02-25, 2026-04-24
T01 Megeath 2026-02-09, 2026-02-26
W01 Zackay 2026-03-16, 2026-04-16, 2026-05-10
W02 Hallakoun 2026-01-06, 2026-06-25
W03 Polishook 2026-02-17
W04 Garrappa
W05 Zimmerman 2026-01-25, 2026-03-17, 2026-03-19
Y01 Brewer 2026-01-01, 2026-01-02, 2026-01-03, 2026-01-04, 2026-01-06, 2026-01-09
2026-01-21, 2026-01-24, 2026-01-25, 2026-01-27, 2026-01-28, 2026-02-01
2026-02-02, 2026-02-03, 2026-02-05, 2026-02-06, 2026-02-13, 2026-02-16
2026-02-20, 2026-02-21, 2026-02-23, 2026-02-25, 2026-02-26, 2026-02-28
2026-03-03, 2026-03-04, 2026-03-05, 2026-03-06, 2026-03-09, 2026-03-11
2026-03-15, 2026-03-19, 2026-03-20, 2026-03-31, 2026-04-01, 2026-04-06
2026-04-07, 2026-04-11, 2026-04-18, 2026-04-23, 2026-04-25, 2026-04-27
2026-04-28, 2026-04-29, 2026-04-30, 2026-05-02, 2026-05-03, 2026-05-05
2026-05-19, 2026-05-22, 2026-05-23, 2026-05-26, 2026-05-27, 2026-05-28
2026-05-29, 2026-06-03, 2026-06-06, 2026-06-07, 2026-06-08, 2026-06-19
2026-06-20, 2026-06-22, 2026-06-24, 2026-06-25, 2026-06-27, 2026-06-30
tbd 2026-05-31
E01 Engineering 2026-01-01, 2026-01-02, 2026-01-03, 2026-01-04, 2026-01-05, 2026-01-06
2026-01-07, 2026-01-08, 2026-01-09, 2026-01-14, 2026-01-15, 2026-01-27
2026-01-28, 2026-02-01, 2026-02-02, 2026-02-03, 2026-02-04, 2026-02-06
2026-02-11, 2026-02-24, 2026-02-28, 2026-03-02, 2026-03-04, 2026-03-05
2026-03-06, 2026-03-08, 2026-03-16, 2026-03-17, 2026-03-20, 2026-03-31
2026-04-01, 2026-04-16, 2026-04-17, 2026-04-19, 2026-04-20, 2026-04-21
2026-04-22, 2026-04-25, 2026-04-26, 2026-04-27, 2026-04-28, 2026-04-29
2026-04-30, 2026-05-01, 2026-05-02, 2026-05-04, 2026-05-05, 2026-05-07
2026-05-10, 2026-05-11, 2026-05-15, 2026-05-19, 2026-05-20, 2026-05-21
2026-05-22, 2026-05-24, 2026-05-25, 2026-05-26, 2026-05-27, 2026-05-28
2026-05-29, 2026-05-30, 2026-06-06, 2026-06-08, 2026-06-09, 2026-06-10
2026-06-14, 2026-06-17, 2026-06-19, 2026-06-20, 2026-06-23, 2026-06-24
2026-06-26, 2026-06-27, 2026-06-29, 2026-06-30
ID PI Name Title B01 Guidry Precision Photometry of Exoplanetary Debris Transiting White Dwarfs B02 Dong Exploring Stellar Coronal Mass Ejections through LDT Spectroscopy B03 Schmidt Variability in the O2 Absorption on the Icy Jovian Satellites B04 Zamudio Ruvalcaba The search for the youngest debris disks B05 Ould Rouis The search for most massive exoplanet host star B06 Muirhead The Perkins Infrared Exosatellite Survey (PINES) on LDT-RIMAS B07 Ye High Resolution Spectroscopy of Bright Cometary Comae L01 Wasserman Astrometric Measures of Centaurs and Kuiper Belt Objects L02 Grundy Mutual events in the trans-Neptunian belt L03 Thirouin The fraction of contact binaries in the trans-Neptunian belt L04 Thirouin Origin of the Centaur population in the Kuiper belt L05 Thirouin Logos-Zoe: A triple or quadruple system in the Kuiper belt? L06 Thirouin Twilight Asteroids: Target of Opportunity and Survey L07 Sikora Probing Exoplanetary Mass-loss with RIMAS L08 Zhang Comets near the Sun L09 Llama Disentangling Granulation and Super-granulation in RV Time Series through High-Cadence Observations L10 Llama Exploring the origins of sub-Neptune planets by measuring stellar obliquities L11 Moskovitz NEO Rapid Response: Close Encounters of the Asteroid Kind L12 Brasseur Tracing stellar prominences on DT Vir (GJ 494 A) L13 Polanski The Jovian Architectures Survey (JAS): An EXPRES Route to Understanding ExoSolar Systems L14 Polanski Confirmation and System Characterization of Ariel Targets L15 Minker A Speckle-tacular study of triplicity in main-belt and hungarian asteroids L16 Minker Probing meteorite origins through observations of faint Main Belt asteroids L17 Hemmelgarn Color and Activity Survey of Centaurs L18 Kareta Faint Astrometry of the Dark Comets L19 Schleicher The Evolution of Dust and Gas Jets in Comet 10P/Tempel 2 L20 Levine Occultations of Bodies in the Outer Solar System M01 Rastinejad ToO Observations of Relativistic Transients M02 Stein Classically Scheduled Imaging & Spectroscopy of Transients and Their Host Galaxies M03 Bauer Observations of CO + CO2 Active Periodic Comets Observed by NEOWISE, Newly Discovered Centaurs and Active Centaurs, and Planetary Defense Targets II M04 Ye Observations of Comets and Asteroids M05 Ye Observations of near-Sun comets N01 Farrell Confirmation and Characterization of Unusual Active Bodies N02 Emery Visible spectra of Trojan asteroids N03 Madden-Watson Visible Spectroscopy of Low-Perihelion Objects N04 Cantelas Follow-up observations of unusual NEOs. N05 Thomas Rotational Analysis of (3552) Don Quixote N06 Trujillo Recovery of Extreme trans-Neptunian Objects in Search of a Distant Massive Planet N07 Clark Early LSST Followup T01 Megeath PRIMAS Orion: Protostars with RIMAS in Orion W01 Zackay Speckle Pattern Reconstruction for High Contrast Imaging W02 Hallakoun Unveiling the progenitors of massive white dwarfs in intermediate-separation binaries W03 Polishook From maturity to freshness - studying resurfacing of weathered asteroids by searching for spectral variation on Q-type bodies W04 Garrappa Extragalactic Neutrino Sources - Unvealing Elusive Messengers in the Transient Sky W05 Zimmerman Infant Supernovae -- Observing Massive Stars as They Explode Y01 Brewer Yale Exoplanet Survey tbd E01 Engineering Night Engineering
New users needing training: 2026-01-25: M04 Ye: No prior experience with RIMAS. 2026-02-10: N01 Farrell: New users to be trained by PI/CoIs. 2026-02-11: L16 Minker: New LMI user. 2026-02-17: W03 Polishook: DP is a new user; NM will assist. 2026-02-25: M01 Rastinejad: JCR is new LDT user; will be trained by CoIs. 2026-03-25: B05 Ould Rouis: Some new users. Will be trained by PI/CoIs. 2026-03-27: L12 Brasseur: CBrasseur is new LDT + EXPRES user; to be trained by CoIs 2026-04-11: N06 Trujillo: New users to be trained by PI/CoIs. 2026-05-31: B04 Zamudio Ruvalcaba: LFZR is a new LDT user. Will observe on-site.
Latest as of 2026-03-20T22:18:15.929807 UTC