| July 2025 - 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 |
| Tue | Jul-01 | 6.9 | b g g g g D D | 43% 44% 44% 44% 44% 0% 0% | 20:11-20:48 20:48-22:00 22:00-22:38 22:00-22:30 22:38-00:28 00:28-02:19 02:19-04:09 | 0.0 / 0.0 0.0 / 1.2 0.0 / 0.6 0.0 / 0.5 0.7 / 1.8 1.9 / 1.9 1.2 / 1.8 | 0. 0.16 0.09 0.07 0.25 0.25 0.25 | L23 L24 E01 M04 Y01 L12 L19 | Thirouin Thirouin Engineering Ye Brewer Polanski Kareta | Remote Remote ToO Remote Remote Remote | LMI LMI LMI LMI,NIHTS,DEVENY EXPRES EXPRES LMI | VR,I,g,r,i,z VR,I,g,r,i,z r OH,CN,BC,RC,DV2 (300g/mm) g,r,i,z,CN,VR | 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 | Jul-02 | 7.9 | b g g D | 53% 54% 54% 54% | 20:11-20:48 20:48-22:00 22:00-23:51 23:51-04:09 | 0.0 / 0.0 0.0 / 1.2 0.0 / 1.9 3.4 / 4.3 | 0. 0.16 0.25 0.59 | L23 L24 Y01 E01 | Thirouin Thirouin Brewer Engineering | Remote Remote Remote | LMI LMI EXPRES LMI | VR,I,g,r,i,z VR,I,g,r,i,z 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 | Jul-03 | 8.9 | b g g D | 63% 63% 63% 64% | 20:11-20:47 20:47-22:00 22:00-23:51 23:51-04:10 | 0.0 / 0.0 0.0 / 1.2 0.0 / 1.9 3.0 / 4.3 | 0. 0.16 0.25 0.58 | L23 L24 Y01 E01 | Thirouin Thirouin Brewer Engineering | Remote Remote Remote | LMI LMI EXPRES RIMAS | VR,I,g,r,i,z VR,I,g,r,i,z r | BM 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) |
| Fri | Jul-04 | 9.9 | b b b g D | 72% 72% 72% 73% 0% | 20:11-20:47 20:47-22:00 22:00-23:00 22:00-02:20 02:20-04:11 | 0.0 / 0.0 0.0 / 1.2 0.0 / 1.0 1.3 / 4.3 1.2 / 1.9 | 0. 0.16 0.14 0.59 0.25 | L23 L24 L04 E01 Y01 | Thirouin Thirouin Zhang Engineering Brewer | Remote Remote ToO Remote | LMI LMI LMI,EXPRES,DEVENY LMI EXPRES | VR,I,g,r,i,z VR,I,g,r,i,z CN,C3,C2,BC,RC,g,r,i,VR 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) |
| Sat | Jul-05 | 10.9 | b b g D | 80% 80% 81% 0% | 20:11-20:47 20:47-22:00 22:00-02:20 02:20-04:11 | 0.0 / 0.0 0.0 / 1.2 0.8 / 4.3 1.2 / 1.9 | 0. 0.16 0.59 0.25 | L23 L24 E01 Y01 | Thirouin Thirouin Engineering Brewer | Remote Remote Remote | LMI LMI RIMAS EXPRES | VR,I,g,r,i,z VR,I,g,r,i,z 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) |
| Sun | Jul-06 | 11.9 | b b b b D D | 87% 87% 87% 88% 0% 88% | 20:11-20:47 20:47-22:00 22:00-23:51 23:51-02:00 02:11-03:11 02:00-04:12 | 0.0 / 0.0 0.0 / 1.2 0.0 / 1.9 0.0 / 2.1 1.0 / 1.0 1.4 / 2.2 | 0. 0.16 0.25 0.29 0.13 0.3 | L23 L24 Y01 L12 W04 E01 | Thirouin Thirouin Brewer Polanski Zimmerman Engineering | Remote Remote Remote Remote ToO | LMI LMI EXPRES EXPRES DEVENY LMI | VR,I,g,r,i,z VR,I,g,r,i,z DV2 r | IN 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) |
| Mon | Jul-07 | 12.9 | b | 94% | 20:46-04:12 | 0.7 / 7.4 | 1.0 | E04 | Shutdown | n/a | 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 | Jul-08 | 13.9 | b | 98% | 20:46-04:13 | 0.0 / 7.5 | 1.0 | E04 | Shutdown | n/a | 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 | Jul-09 | 14.6 | b | 100% | 20:45-04:14 | 0.0 / 7.5 | 1.0 | E04 | Shutdown | n/a | 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 | Jul-10 | 13.6 | b | 100% | 20:45-04:15 | 0.0 / 7.5 | 1.0 | E04 | Shutdown | n/a | 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 | Jul-11 | 12.6 | b | 98% | 20:45-04:15 | 0.0 / 7.5 | 1.0 | E04 | Shutdown | n/a | 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 | Jul-12 | 11.6 | b | 94% | 20:44-04:16 | 0.0 / 7.5 | 1.0 | E04 | Shutdown | n/a | 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 | Jul-13 | 10.6 | b | 87% | 20:44-04:17 | 0.6 / 7.5 | 1.0 | E04 | Shutdown | n/a | 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 | Jul-14 | 9.6 | g | 79% | 20:43-04:18 | 1.1 / 7.6 | 1.0 | E04 | Shutdown | n/a | 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 | Jul-15 | 8.6 | g | 69% | 20:42-04:18 | 1.5 / 7.6 | 1.0 | E04 | Shutdown | n/a | 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 | Jul-16 | 7.6 | g | 58% | 20:42-04:19 | 2.0 / 7.6 | 1.0 | E04 | Shutdown | n/a | 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 | Jul-17 | 6.6 | g | 47% | 20:41-04:20 | 2.5 / 7.7 | 1.0 | E04 | Shutdown | n/a | 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 | Jul-18 | 5.6 | D | 35% | 20:40-04:21 | 3.1 / 7.7 | 1.0 | E04 | Shutdown | n/a | 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 | Jul-19 | 4.6 | D | 24% | 20:40-04:22 | 3.8 / 7.7 | 1.0 | E04 | Shutdown | n/a | 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 | Jul-20 | 3.6 | D | 15% | 20:39-04:23 | 4.6 / 7.7 | 1.0 | E04 | Shutdown | n/a | 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 | Jul-21 | 2.6 | D | 7% | 20:38-04:23 | 5.6 / 7.8 | 1.0 | E04 | Shutdown | n/a | CS JF | 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 | Jul-22 | 1.6 | D | 2% | 20:37-04:24 | 6.5 / 7.8 | 1.0 | E04 | Shutdown | n/a | CS JF | 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 | Jul-23 | 0.6 | D | 0% | 20:37-04:25 | 6.6 / 7.8 | 1.0 | E04 | Shutdown | n/a | 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 | Jul-24 | 0.4 | D | 0% | 20:36-04:26 | 6.6 / 7.8 | 1.0 | E04 | Shutdown | n/a | 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 | Jul-25 | 1.4 | D | 0% | 20:35-04:27 | 6.7 / 7.9 | 1.0 | E04 | Shutdown | n/a | BM 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) | ||
| Sat | Jul-26 | 2.4 | D | 6% | 20:34-04:28 | 6.7 / 7.9 | 1.0 | E04 | Shutdown | n/a | BS 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) | ||
| Sun | Jul-27 | 3.4 | D | 12% | 20:33-04:29 | 6.5 / 7.9 | 1.0 | E04 | Shutdown | n/a | BS 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) | ||
| Mon | Jul-28 | 4.4 | D D D | 20% 0% 0% | 20:32-22:32 22:32-00:31 00:31-04:30 | 0.8 / 2.0 2.0 / 2.0 3.4 / 4.0 | 0.25 0.25 0.5 | L25 Y01 L20 | Levine Brewer Wasserman | Remote Remote Remote | GWAVES,LMI EXPRES LMI | VR,RC,r VR | 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 | Jul-29 | 5.4 | D D D | 28% 0% 0% | 20:31-00:31 00:31-02:31 02:31-04:31 | 2.3 / 4.0 2.0 / 2.0 1.4 / 2.0 | 0.5 0.25 0.25 | N10 Y01 E01 | Farrell Brewer Engineering | On-Site Remote | LMI EXPRES LMI | VR,V,R,I,g,r,i 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 | Jul-30 | 6.4 | D D | 37% 0% | 20:30-02:32 02:32-04:32 | 4.0 / 6.0 1.4 / 2.0 | 0.75 0.25 | E01 Y01 | Engineering Brewer | Remote | QWSSI EXPRES | 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 | Jul-31 | 7.4 | D | 47% | 20:29-04:32 | 5.0 / 8.1 | 1.0 | L16 | van Belle | Remote | QWSSI | BM JF | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV2 (300g/mm,4000A) | |
| August 2025 - 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 | Aug-01 | 8.4 | g D D | 57% 0% 0% | 20:28-00:31 00:31-02:32 02:32-04:33 | 1.0 / 4.0 2.0 / 2.0 1.4 / 2.0 | 0.5 0.25 0.25 | L13 W05 Y01 | Polanski Zackay Brewer | Remote Remote Remote | QWSSI QWSSI EXPRES | IN JF | 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 | Aug-02 | 9.4 | g D D | 66% 0% 0% | 20:27-00:31 00:31-02:32 02:32-04:34 | 0.4 / 4.1 2.0 / 2.0 1.5 / 2.0 | 0.5 0.25 0.25 | L13 L12 L19 | Polanski Polanski Kareta | Remote Remote Remote | QWSSI EXPRES LMI | 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 | DV2 (300g/mm,4000A) |
| Sun | Aug-03 | 10.4 | b g | 74% 75% | 20:26-22:28 22:28-04:35 | 0.0 / 2.0 3.3 / 6.1 | 0.25 0.75 | Y01 E01 | Brewer Engineering | Remote | EXPRES LMI | 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) |
| Mon | Aug-04 | 11.4 | g | 83% | 20:25-04:36 | 2.5 / 8.2 | 1.0 | E01 | Engineering | LMI | 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 | Aug-05 | 12.4 | b g | 89% 90% | 20:24-22:27 22:27-04:37 | 0.0 / 2.0 1.5 / 6.2 | 0.25 0.75 | Y01 E01 | Brewer Engineering | Remote | EXPRES LMI | 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 | Aug-06 | 13.4 | b | 96% | 20:22-04:38 | 0.5 / 8.3 | 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 | DV2 (300g/mm,4000A) | |
| Thu | Aug-07 | 14.4 | b | 99% | 20:21-04:39 | 0.0 / 8.3 | 1.0 | L10 | Polanski | Remote | EXPRES | 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 | Aug-08 | 13.9 | b | 100% | 20:20-04:40 | 0.0 / 8.3 | 1.0 | E01 | Engineering | LMI | r | 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) | |
| Sat | Aug-09 | 12.9 | b b | 99% 99% | 20:19-22:25 22:25-04:41 | 0.0 / 2.1 0.0 / 6.3 | 0.25 0.75 | Y01 E01 | Brewer Engineering | Remote | EXPRES LMI | 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) |
| Sun | Aug-10 | 11.9 | b b | 96% 95% | 20:18-22:24 22:24-04:42 | 0.0 / 2.1 0.0 / 6.3 | 0.25 0.75 | Y01 E01 | Brewer Engineering | Remote | EXPRES LMI | 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 | Aug-11 | 10.9 | g b | 90% 90% | 20:16-22:23 22:23-04:43 | 0.1 / 2.1 0.0 / 6.3 | 0.25 0.75 | Y01 E01 | Brewer Engineering | Remote | EXPRES LMI | 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) |
| Tue | Aug-12 | 9.9 | g b | 82% 80% | 20:15-02:37 02:37-04:44 | 0.5 / 6.4 0.0 / 2.1 | 0.75 0.25 | M02 L12 | Savel Polanski | Remote Remote | EXPRES EXPRES | 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 | Aug-13 | 8.9 | D b | 72% 72% | 20:14-22:22 22:22-04:45 | 1.1 / 2.1 0.0 / 6.4 | 0.25 0.75 | Y01 E01 | Brewer Engineering | Remote | EXPRES LMI | 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 | Aug-14 | 7.9 | g g g | 61% 60% 59% | 20:12-00:29 00:29-02:37 02:37-04:45 | 1.6 / 4.3 0.0 / 2.1 0.0 / 2.1 | 0.5 0.25 0.25 | L13 Y01 E01 | Polanski Brewer Engineering | Remote Remote | QWSSI EXPRES LMI | r | BM JF | 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 | Aug-15 | 6.9 | D g g | 49% 48% 47% | 20:11-00:28 00:28-02:37 02:37-04:46 | 2.3 / 4.3 0.0 / 2.1 0.0 / 2.1 | 0.5 0.25 0.25 | L13 Y01 E01 | Polanski Brewer Engineering | Remote Remote | EXPRES EXPRES LMI | r | 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) |
| Sat | Aug-16 | 5.9 | D | 37% | 20:10-04:47 | 3.1 / 8.6 | 1.0 | B01 | Ould Rouis | Remote | DEVENY | DV2 (300g/mm,4000A) | 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) |
| Sun | Aug-17 | 4.9 | D D g | 0% 26% 25% | 20:09-00:28 00:28-02:38 02:38-04:48 | 3.8 / 4.3 0.3 / 2.2 0.0 / 2.2 | 0.5 0.25 0.25 | W02 L12 Y01 | Ofek Polanski Brewer | Remote Remote Remote | DEVENY EXPRES EXPRES | DV2 300g/mm,4000A,GG420 | 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) |
| Mon | Aug-18 | 3.9 | D | 17% | 20:07-04:49 | 5.1 / 8.7 | 1.0 | W01 | Ben-Ami | Remote | DEVENY | DV7 600g/mm,6750A,OG570 | IN BS | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV7 (600g/mm,6750A) |
| Tue | Aug-19 | 2.9 | D D D | 0% 0% 9% | 20:06-22:17 22:17-00:28 00:28-04:50 | 1.6 / 2.2 2.2 / 2.2 2.5 / 4.4 | 0.25 0.25 0.5 | E01 Y01 N08 | Engineering Brewer Lee | Remote On-Site | LMI EXPRES DEVENY | r DV1 | CS BS | 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 | Aug-20 | 1.9 | D D D | 0% 0% 3% | 20:04-22:16 22:16-00:28 00:28-04:51 | 1.6 / 2.2 2.2 / 2.2 3.6 / 4.4 | 0.25 0.25 0.5 | L25 Y01 N06 | Levine Brewer Thomas | Remote Remote Remote | GWAVES,LMI EXPRES DEVENY,LMI | VR,RC,r VR,g,r,i,z,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) |
| Thu | Aug-21 | 0.9 | D D | 0% 0% | 20:03-22:15 22:15-04:52 | 1.6 / 2.2 6.1 / 6.6 | 0.25 0.75 | L19 L18 | Kareta Schleicher | Remote Remote | LMI LMI | g,r,i,z,CN,VR r,VR,CN,C2 | BM JF | 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 | Aug-22 | 0.1 | D | 0% | 20:02-04:53 | 7.8 / 8.8 | 1.0 | L20 | Wasserman | Remote | LMI | VR | 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) |
| Sat | Aug-23 | 1.1 | D D | 0% 0% | 20:00-02:40 02:40-04:54 | 6.1 / 6.7 1.7 / 2.2 | 0.75 0.25 | E01 Y01 | Engineering Brewer | Remote | QWSSI 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) | |
| Sun | Aug-24 | 2.1 | D D | 0% 0% | 19:59-22:13 22:13-04:54 | 1.7 / 2.2 6.2 / 6.7 | 0.25 0.75 | Y01 E01 | Brewer Engineering | Remote | EXPRES LMI | 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 | Aug-25 | 3.1 | D D | 8% 0% | 19:57-00:26 00:26-04:55 | 4.0 / 4.5 4.0 / 4.5 | 0.5 0.5 | L13 L21 | Polanski Sikora | Remote Remote | EXPRES EXPRES | 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 | Aug-26 | 4.1 | D | 14% | 19:56-04:56 | 7.8 / 9.0 | 1.0 | L16 | van Belle | Remote | QWSSI | 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 | Aug-27 | 5.1 | D D D | 22% 0% 0% | 19:55-00:26 00:26-02:41 02:41-04:57 | 3.4 / 4.5 2.2 / 2.2 1.8 / 2.3 | 0.5 0.25 0.25 | L13 W05 Y01 | Polanski Zackay Brewer | Remote Remote Remote | QWSSI QWSSI EXPRES | 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 | Aug-28 | 6.1 | D | 30% | 19:53-04:58 | 7.0 / 9.1 | 1.0 | L18 | Schleicher | Remote | LMI | r,VR,CN,C2 | BM JF | 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 | Aug-29 | 7.1 | D | 40% | 19:52-04:59 | 6.4 / 9.1 | 1.0 | L15 | Horch | Remote | QWSSI | 592nm,754nm,821nm,870nm | 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 | Aug-30 | 8.1 | D | 49% | 19:50-05:00 | 5.8 / 9.2 | 1.0 | L15 | Horch | Remote | QWSSI | 592nm,754nm,821nm,870nm | 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) |
| Sun | Aug-31 | 9.1 | D | 59% | 19:49-05:00 | 5.1 / 9.2 | 1.0 | L18 | Schleicher | Remote | LMI | r,VR,CN,C2 | BS 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) |
| September 2025 - 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 | Sep-01 | 10.1 | g | 69% | 19:47-05:01 | 4.2 / 9.2 | 1.0 | L18 | Schleicher | Remote | LMI | r,VR,CN,C2 | 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 | Sep-02 | 11.1 | g | 78% | 19:46-05:02 | 3.3 / 9.3 | 1.0 | L05 | Llama | Remote | EXPRES | 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 | Sep-03 | 12.1 | g | 86% | 19:44-05:03 | 2.2 / 9.3 | 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 | DV2 (300g/mm,4000A) | |
| Thu | Sep-04 | 13.1 | b g | 92% 93% | 19:43-00:23 00:23-05:04 | 0.0 / 4.7 1.1 / 4.7 | 0.5 0.5 | L13 E01 | Polanski Engineering | Remote | EXPRES LMI | r | BM JF | 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 | Sep-05 | 14.1 | b b | 97% 98% | 19:41-00:23 00:23-05:05 | 0.0 / 4.7 0.0 / 4.7 | 0.5 0.5 | L13 E01 | Polanski Engineering | Remote | EXPRES LMI | 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 | Sep-06 | 14.4 | b b | 100% 100% | 19:40-02:44 02:44-05:05 | 0.0 / 7.1 0.0 / 2.4 | 0.75 0.25 | E01 Y01 | Engineering Brewer | Remote | LMI EXPRES | 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) |
| Sun | Sep-07 | 13.4 | b b | 100% 100% | 19:38-02:44 02:44-05:06 | 0.0 / 7.1 0.0 / 2.4 | 0.75 0.25 | E01 Y01 | Engineering Brewer | Remote | LMI EXPRES | 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) |
| Mon | Sep-08 | 12.4 | b | 97% | 19:37-05:07 | 0.0 / 9.5 | 1.0 | E01 | Engineering | LMI | 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 | Sep-09 | 11.4 | b b | 92% 92% | 19:35-21:58 21:58-05:08 | 0.0 / 2.4 0.0 / 7.2 | 0.25 0.75 | Y01 L05 | Brewer Llama | Remote Remote | EXPRES EXPRES | 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 | Sep-10 | 10.4 | b | 84% | 19:34-05:09 | 0.3 / 9.6 | 1.0 | B02 | Dong | Remote | DEVENY | DV6 (Clear) | BM CS | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV6 (600g/mm,4900A) |
| Thu | Sep-11 | 9.4 | g | 75% | 19:32-05:09 | 1.0 / 9.6 | 1.0 | B02 | Dong | Remote | DEVENY | DV6 (Clear) | BM JF | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV6 (600g/mm,4900A) |
| Fri | Sep-12 | 8.4 | D g g | 64% 63% 62% | 19:31-21:56 21:56-00:20 00:20-05:10 | 1.8 / 2.4 0.0 / 2.4 0.0 / 4.8 | 0.25 0.25 0.5 | L25 Y01 E01 | Levine Brewer Engineering | Remote Remote | GWAVES,LMI EXPRES LMI | VR,RC,r r | 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) |
| Sat | Sep-13 | 7.4 | D g g | 0% 52% 50% | 19:29-21:55 21:55-02:45 02:45-05:11 | 1.9 / 2.4 0.7 / 4.8 0.0 / 2.4 | 0.25 0.5 0.25 | L19 N01 L12 | Kareta McClure Polanski | Remote Remote Remote | LMI DEVENY EXPRES | g,r,i,z,CN,VR DV1 (150g/mm) | BS 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) |
| Sun | Sep-14 | 6.4 | D g | 40% 40% | 19:28-00:20 00:20-05:12 | 3.7 / 4.9 0.0 / 4.9 | 0.5 0.5 | M04 N05 | Ye Madden-Watson | Remote Remote | LMI DEVENY | g,r,i,z,VR,OH,CN,BC,RC,C2,C3,UC DV1 | BS 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) |
| Mon | Sep-15 | 5.5 | b D g | 0% 29% 27% | 18:57-19:26 19:26-05:13 05:13-05:42 | 0.0 / 0.0 4.8 / 9.8 0.0 / 0.0 | 0. 1.0 0. | L23 L22 L23 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | VR,I,g,r,i,z VR,g,r,i,z VR,I,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 | Sep-16 | 4.5 | D | 19% | 19:25-05:13 | 6.0 / 9.8 | 1.0 | L09 | Hemmelgarn | Remote | LMI | u,g,r,i,z,VR | 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 | Sep-17 | 3.5 | D | 11% | 19:23-05:14 | 7.1 / 9.8 | 1.0 | B06 | Guidry | On-Site | LMI | g,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 | Sep-18 | 2.5 | D | 5% | 19:22-05:15 | 8.2 / 9.9 | 1.0 | B01 | Ould Rouis | Remote | DEVENY | DV2 (300g/mm,4000A) | BM JF | 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 | Sep-19 | 1.5 | D | 2% | 19:20-05:16 | 8.9 / 9.9 | 1.0 | L20 | Wasserman | Remote | LMI | VR | 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) |
| Sat | Sep-20 | 0.5 | b D D | 0% 0% 0% | 18:49-19:19 19:19-05:16 05:16-05:46 | 0.0 / 0.0 9.0 / 9.9 0.0 / 0.0 | 0. 1.0 0. | L23 L22 L23 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | VR,I,g,r,i,z VR,g,r,i,z VR,I,g,r,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) |
| Sun | Sep-21 | 0.5 | D | 0% | 19:17-05:17 | 9.0 / 10.0 | 1.0 | L25 | Levine | Remote | GWAVES,POETS,LMI | 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) | |
| Mon | Sep-22 | 1.5 | D D D | 0% 0% 0% | 19:16-02:48 02:48-04:03 04:03-05:18 | 7.0 / 7.5 1.2 / 1.2 0.8 / 1.2 | 0.75 0.12 0.12 | L18 L12 L04 | Schleicher Polanski Zhang | Remote Remote Remote | LMI EXPRES LMI | r,VR,CN,C2 CN,C3,C2,BC,RC,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) |
| Tue | Sep-23 | 2.5 | D D D | 0% 0% 0% | 19:14-00:16 00:16-04:03 04:03-05:19 | 4.5 / 5.0 3.8 / 3.8 0.8 / 1.3 | 0.5 0.38 0.13 | L21 Y01 L04 | Sikora Brewer Zhang | Remote Remote Remote | EXPRES EXPRES LMI | CN,C3,C2,BC,RC,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 | Sep-24 | 3.5 | D D D | 10% 0% 0% | 19:13-00:17 00:17-04:03 04:03-05:19 | 4.6 / 5.1 3.8 / 3.8 0.8 / 1.3 | 0.5 0.37 0.13 | N04 E01 L04 | Hemmelgarn Engineering Zhang | Remote Remote | LMI LMI LMI | u,g,r,i,z,VR r CN,C3,C2,BC,RC,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 | Sep-25 | 4.5 | D D D | 16% 0% 0% | 19:12-02:48 02:48-04:04 04:04-05:20 | 6.8 / 7.6 1.3 / 1.3 0.8 / 1.3 | 0.75 0.12 0.12 | L18 Y01 L04 | Schleicher Brewer Zhang | Remote Remote Remote | LMI EXPRES LMI | r,VR,CN,C2 CN,C3,C2,BC,RC,r | BM JF | 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 | Sep-26 | 5.5 | D D D | 24% 0% 0% | 19:10-02:48 02:48-04:05 04:05-05:21 | 6.2 / 7.6 1.3 / 1.3 0.8 / 1.3 | 0.75 0.13 0.12 | L18 Y01 L04 | Schleicher Brewer Zhang | Remote Remote Remote | LMI EXPRES LMI | r,VR,CN,C2 CN,C3,C2,BC,RC,r | 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) |
| Sat | Sep-27 | 6.5 | D D D | 32% 0% 0% | 19:09-00:15 00:15-04:05 04:05-05:22 | 3.0 / 5.1 3.8 / 3.8 0.8 / 1.3 | 0.5 0.38 0.13 | N07 L12 L04 | Clark Polanski Zhang | Remote Remote Remote | LMI EXPRES LMI | g,r,i,z CN,C3,C2,BC,RC,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) |
| Sun | Sep-28 | 7.5 | D | 42% | 19:07-05:23 | 6.8 / 10.3 | 1.0 | M03 | Bauer | Remote | LMI | g,r,CO+,VR,OH,CN,BC,RC,C2,C3 | IN BS | OPEN DARK UC C2 C3 I R V B OH OPEN CO+ g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Mon | Sep-29 | 8.5 | g D D | 52% 0% 0% | 19:06-00:15 00:15-04:06 04:06-05:23 | 1.2 / 5.2 3.9 / 3.9 0.8 / 1.3 | 0.5 0.37 0.12 | L25 L25 L04 | Levine Levine Zhang | Remote Remote Remote | GWAVES,POETS,LMI GWAVES,LMI LMI | VR,RC,r CN,C3,C2,BC,RC,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 | Sep-30 | 9.5 | g D D | 62% 62% 0% | 19:04-22:56 22:56-04:06 04:06-05:24 | 0.0 / 3.9 4.0 / 5.2 0.8 / 1.3 | 0.37 0.5 0.13 | Y01 E01 L04 | Brewer Engineering Zhang | Remote Remote | EXPRES LMI LMI | r CN,C3,C2,BC,RC,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) |
| October 2025 - 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 | Oct-01 | 10.5 | b b D D | 71% 72% 72% 0% | 19:03-21:39 21:39-00:14 00:14-05:25 05:25-05:54 | 0.0 / 2.6 0.0 / 2.6 3.8 / 5.2 0.0 / 0.0 | 0.25 0.25 0.5 0. | E01 Y01 L07 L23 | Engineering Brewer Grundy Thirouin | Remote Remote Remote | LMI EXPRES LMI LMI | r VR,g,r,i,z VR,I,g,r,i,z | 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 | Oct-02 | 11.5 | g D | 82% 0% | 19:02-04:08 04:08-05:26 | 1.9 / 9.1 0.8 / 1.3 | 0.88 0.12 | E01 L04 | Engineering Zhang | Remote | LMI LMI | r CN,C3,C2,BC,RC,r | BM JF | 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 | Oct-03 | 12.5 | b D | 90% 0% | 19:00-04:08 04:08-05:26 | 0.7 / 9.1 0.8 / 1.3 | 0.88 0.12 | E01 L04 | Engineering Zhang | Remote | LMI LMI | r CN,C3,C2,BC,RC,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 | Oct-04 | 13.5 | b b b | 95% 95% 96% | 18:59-21:36 21:36-00:13 00:13-05:27 | 0.0 / 2.6 0.0 / 2.6 0.5 / 5.2 | 0.25 0.25 0.5 | Y01 L12 L14 | Brewer Polanski Prato | Remote Remote On-Site | EXPRES EXPRES QWSSI | 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) | |
| Sun | Oct-05 | 14.5 | b b b | 99% 99% 99% | 18:58-21:36 21:36-00:13 00:13-05:28 | 0.0 / 2.6 0.0 / 2.6 0.0 / 5.2 | 0.25 0.25 0.5 | Y01 W05 L14 | Brewer Zackay Prato | Remote Remote On-Site | EXPRES QWSSI QWSSI | BS 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) | |
| Mon | Oct-06 | 14.1 | b b | 100% 100% | 18:56-02:51 02:51-05:29 | 0.0 / 7.9 0.0 / 2.6 | 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) |
| Tue | Oct-07 | 13.1 | b b | 99% 98% | 18:55-02:51 02:51-05:29 | 0.0 / 7.9 0.0 / 2.6 | 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 | Oct-08 | 12.1 | b b | 94% 93% | 18:54-02:51 02:51-05:30 | 0.0 / 8.0 0.0 / 2.6 | 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) |
| Thu | Oct-09 | 11.1 | g b b | 87% 86% 86% | 18:52-21:32 21:32-00:12 00:12-05:31 | 0.3 / 2.7 0.0 / 2.7 0.0 / 5.3 | 0.25 0.25 0.5 | Y01 L12 L08 | Brewer Polanski Kutra | Remote Remote Remote | EXPRES EXPRES EXPRES | BM JF | 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 | Oct-10 | 10.1 | g b b | 78% 77% 76% | 18:51-21:31 21:31-00:11 00:11-05:32 | 1.2 / 2.7 0.0 / 2.7 0.0 / 5.3 | 0.25 0.25 0.5 | L18 Y01 E01 | Schleicher Brewer Engineering | Remote Remote | LMI EXPRES LMI | r,VR,CN,C2 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 | Oct-11 | 9.1 | b g g | 0% 67% 64% | 18:20-18:50 18:50-05:32 05:32-06:02 | 0.0 / 0.0 2.2 / 10.7 0.0 / 0.0 | 0. 1.0 0. | L23 L22 L23 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | VR,I,g,r,i,z VR,g,r,i,z VR,I,g,r,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) |
| Sun | Oct-12 | 8.1 | g | 55% | 18:48-05:33 | 3.3 / 10.8 | 1.0 | B02 | Dong | Remote | DEVENY | DV6 (Clear) | IN OW | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV6 (600g/mm,4900A) |
| Mon | Oct-13 | 7.1 | D | 44% | 18:47-05:34 | 4.5 / 10.8 | 1.0 | B01 | Ould Rouis | Remote | DEVENY | DV2 (300g/mm,4000A) | 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 | Oct-14 | 6.1 | D | 33% | 18:46-05:35 | 5.7 / 10.8 | 1.0 | N04 | Hemmelgarn | Remote | LMI | u,g,r,i,z,VR | 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 | Oct-15 | 5.1 | D D D | 0% 23% 23% | 18:45-00:10 00:10-02:53 02:53-05:36 | 4.9 / 5.4 1.8 / 2.7 0.0 / 2.7 | 0.5 0.25 0.25 | M03 Y01 L12 | Bauer Brewer Polanski | Remote Remote Remote | LMI EXPRES EXPRES | g,r,CO+,VR,OH,CN,BC,RC,C2,C3 | BM CS | OPEN DARK UC C2 C3 I R V B OH OPEN CO+ g r i z CN RC VR BC | DV2 (300g/mm,4000A) |
| Thu | Oct-16 | 4.1 | D D D | 0% 0% 15% | 18:43-21:26 21:26-00:10 00:10-05:36 | 2.2 / 2.7 2.7 / 2.7 2.8 / 5.4 | 0.25 0.25 0.5 | L25 Y01 M01 | Levine Brewer Stein | Remote Remote Remote | GWAVES,LMI EXPRES DEVENY,LMI | VR,RC,r u,g,r,i,z,DV2 (300g/mm,4000A) | BM JF | 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 | Oct-17 | 3.1 | D D D | 0% 0% 8% | 18:42-21:26 21:26-00:09 00:09-05:37 | 2.2 / 2.7 2.7 / 2.7 3.8 / 5.5 | 0.25 0.25 0.5 | L18 Y01 E01 | Schleicher Brewer Engineering | Remote Remote | LMI EXPRES LMI | r,VR,CN,C2 r | 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) |
| Sat | Oct-18 | 2.1 | D | 3% | 18:41-05:38 | 9.8 / 10.9 | 1.0 | B05 | Muirhead | On-Site | 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) |
| Sun | Oct-19 | 1.1 | D | 0% | 18:40-05:39 | 10.0 / 11.0 | 1.0 | B05 | Muirhead | On-Site | LMI,RIMAS | J,H,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 | Oct-20 | 0.1 | D | 0% | 18:39-05:40 | 10.1 / 11.0 | 1.0 | B05 | Muirhead | On-Site | LMI,RIMAS | J,H,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) |
| Tue | Oct-21 | 0.9 | b D D | 0% 0% 0% | 18:08-18:38 18:38-05:40 05:40-06:10 | 0.0 / 0.0 10.1 / 11.0 0.0 / 0.0 | 0. 1.0 0. | L23 L22 L23 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | VR,I,g,r,i,z VR,g,r,i,z VR,I,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) |
| Wed | Oct-22 | 1.9 | D | 0% | 18:37-05:41 | 10.1 / 11.1 | 1.0 | T01 | Megeath | On-Site | LMI,DEVENY,RIMAS | g,r,i,z,DV2 | 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 | Oct-23 | 2.9 | D D D | 6% 0% 0% | 18:35-21:22 21:22-02:55 02:55-05:42 | 2.3 / 2.8 5.5 / 5.5 2.3 / 2.8 | 0.25 0.5 0.25 | Y01 N01 L19 | Brewer McClure Kareta | Remote Remote Remote | EXPRES DEVENY LMI | DV1 (150g/mm) g,r,i,z,CN,VR | BM JF | 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 | Oct-24 | 3.9 | D | 11% | 18:34-05:43 | 10.0 / 11.2 | 1.0 | L20 | Wasserman | Remote | LMI | VR | 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) |
| Sat | Oct-25 | 4.9 | D | 18% | 18:33-05:44 | 9.2 / 11.2 | 1.0 | B06 | Guidry | On-Site | LMI | g,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) |
| Sun | Oct-26 | 5.9 | D D | 26% 0% | 18:32-00:09 00:09-05:44 | 3.2 / 5.6 5.1 / 5.6 | 0.5 0.5 | N05 N06 | Madden-Watson Thomas | Remote Remote | DEVENY DEVENY,LMI | DV1 VR,g,r,i,z,DV1 | IN 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) |
| Mon | Oct-27 | 6.9 | g D D | 35% 35% 0% | 18:31-21:19 21:19-00:08 00:08-05:45 | 0.0 / 2.8 2.3 / 2.8 5.2 / 5.6 | 0.25 0.25 0.5 | N09 Y01 E01 | Cantelas Brewer Engineering | Remote Remote | LMI EXPRES LMI | g,r,i,z 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) |
| Tue | Oct-28 | 7.9 | g D D | 44% 45% 0% | 18:30-21:19 21:19-00:09 00:09-05:46 | 0.0 / 2.8 1.2 / 2.8 5.2 / 5.6 | 0.25 0.25 0.5 | L18 Y01 E01 | Schleicher Brewer Engineering | Remote Remote | LMI EXPRES LMI | r,VR,CN,C2 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 | Oct-29 | 8.9 | g | 55% | 18:29-05:47 | 5.3 / 11.3 | 1.0 | L09 | Hemmelgarn | Remote | LMI | u,g,r,i,z,VR | 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 | Oct-30 | 9.9 | g | 66% | 18:29-05:48 | 4.2 / 11.3 | 1.0 | E01 | Engineering | LMI | r | BM JF | 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 | Oct-31 | 10.9 | b g D | 74% 76% 0% | 17:58-18:28 18:28-05:49 05:49-06:18 | 0.0 / 0.0 3.2 / 11.3 0.0 / 0.0 | 0. 1.0 0. | L23 L22 L23 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | VR,I,g,r,i,z VR,g,r,i,z VR,I,g,r,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) |
| November 2025 - 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 |
| Sat | Nov-01 | 11.9 | g | 86% | 18:27-05:49 | 2.0 / 11.4 | 1.0 | E01 | Engineering | LMI | 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) | |
| Sun | Nov-02 | 12.9 | b b b | 92% 92% 93% | 18:26-21:17 21:17-00:08 00:08-05:50 | 0.0 / 2.9 0.0 / 2.9 0.9 / 5.7 | 0.25 0.25 0.5 | Y01 L12 L08 | Brewer Polanski Kutra | Remote Remote Remote | EXPRES EXPRES EXPRES | 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 | Nov-03 | 13.9 | b b b | 97% 97% 98% | 18:25-21:17 21:17-00:09 00:09-05:51 | 0.0 / 2.9 0.0 / 2.9 0.0 / 5.7 | 0.25 0.25 0.5 | Y01 L12 L11 | Brewer Polanski Polanski | Remote Remote Remote | EXPRES EXPRES EXPRES | 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 | Nov-04 | 14.9 | b b b | 100% 100% 100% | 18:24-21:16 21:16-00:08 00:08-05:52 | 0.0 / 2.9 0.0 / 2.9 0.0 / 5.7 | 0.25 0.25 0.5 | B08 Y01 E01 | Ye Brewer Engineering | Remote Remote | EXPRES EXPRES LMI | 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 | Nov-05 | 14.0 | b b | 99% 99% | 18:23-03:01 03:01-05:53 | 0.0 / 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) |
| Thu | Nov-06 | 13.0 | b b | 96% 95% | 18:23-03:01 03:01-05:54 | 0.0 / 8.6 0.0 / 2.9 | 0.75 0.25 | E01 Y01 | Engineering Brewer | Remote | LMI EXPRES | r | BM JF | 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 | Nov-07 | 12.0 | b b | 90% 88% | 18:22-03:01 03:01-05:54 | 0.4 / 8.7 0.0 / 2.9 | 0.75 0.25 | E01 Y01 | Engineering Brewer | Remote | LMI EXPRES | 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 | Nov-08 | 11.0 | g b | 81% 79% | 18:21-03:01 03:01-05:55 | 1.5 / 8.7 0.0 / 2.9 | 0.75 0.25 | E01 Y01 | Engineering Brewer | Remote | LMI EXPRES | 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) |
| Sun | Nov-09 | 10.0 | g | 71% | 18:20-05:56 | 2.7 / 11.6 | 1.0 | B02 | Dong | Remote | DEVENY | DV6 (Clear) | BS OW | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV6 (600g/mm,4900A) |
| Mon | Nov-10 | 9.0 | g | 60% | 18:20-05:57 | 3.9 / 11.6 | 1.0 | L09 | Hemmelgarn | Remote | LMI | u,g,r,i,z,VR | 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 | Nov-11 | 8.0 | D D g | 0% 49% 48% | 18:19-21:14 21:14-00:08 00:08-05:58 | 2.4 / 2.9 2.6 / 2.9 0.0 / 5.8 | 0.25 0.25 0.5 | L18 Y01 E01 | Schleicher Brewer Engineering | Remote Remote | LMI EXPRES LMI | r,VR,CN,C2 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 | Nov-12 | 7.0 | b D g | 0% 38% 36% | 17:48-18:19 18:19-05:59 05:59-06:29 | 0.0 / 0.0 6.1 / 11.7 0.0 / 0.0 | 0. 1.0 0. | L23 L22 L23 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | VR,I,g,r,i,z VR,g,r,i,z VR,I,g,r,i,z | 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 | Nov-13 | 6.0 | D D D | 0% 0% 28% | 18:18-21:14 21:14-00:09 00:09-06:00 | 2.4 / 2.9 2.9 / 2.9 1.7 / 5.8 | 0.25 0.25 0.5 | L01 E01 N10 | Hanley Engineering Farrell | Remote On-Site | EXPRES,NIHTS LMI LMI | r VR,V,R,I,g,r,i | BM JF | 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 | Nov-14 | 5.0 | D D D | 0% 19% 19% | 18:17-21:13 21:13-03:04 03:04-06:00 | 2.4 / 2.9 5.6 / 5.8 0.0 / 2.9 | 0.25 0.5 0.25 | B08 N03 Y01 | Ye Emery Brewer | Remote Remote Remote | EXPRES DEVENY EXPRES | DV1 (150g/mm) | IN 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) |
| Sat | Nov-15 | 4.0 | D | 12% | 18:17-06:01 | 9.0 / 11.7 | 1.0 | B06 | Guidry | On-Site | LMI | g,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) |
| Sun | Nov-16 | 3.0 | D | 7% | 18:16-06:02 | 10.0 / 11.8 | 1.0 | B04 | Blanton | Remote | LMI | u,g,r,i,z,U,B,V,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) |
| Mon | Nov-17 | 2.0 | D | 3% | 18:16-06:03 | 10.8 / 11.8 | 1.0 | B04 | Blanton | Remote | LMI | u,g,r,i,z,U,B,V,R,I | 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 | Nov-18 | 1.0 | D | 0% | 18:16-06:04 | 10.8 / 11.8 | 1.0 | B04 | Blanton | Remote | LMI | u,g,r,i,z,U,B,V,R,I | 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 | Nov-19 | 0.0 | D | 0% | 18:15-06:05 | 10.8 / 11.8 | 1.0 | B04 | Blanton | Remote | LMI | u,g,r,i,z,U,B,V,R,I | 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 | Nov-20 | 1.0 | D D D | 0% 0% 0% | 18:15-21:13 21:13-00:11 00:11-06:06 | 2.5 / 3.0 3.0 / 3.0 5.4 / 5.9 | 0.25 0.25 0.5 | L01 E01 B03 | Hanley Engineering Schmidt | Remote Remote | EXPRES,NIHTS LMI DEVENY | r DV3 (300g/mm 6750A) | BM JF | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV3 (300g/mm,6750A) |
| Fri | Nov-21 | 2.0 | D D D D | 0% 0% 0% 0% | 18:14-21:12 21:12-00:10 00:10-04:38 04:38-06:07 | 2.5 / 3.0 3.0 / 3.0 4.5 / 4.5 1.0 / 1.5 | 0.25 0.25 0.38 0.12 | L01 E01 Y01 L04 | Hanley Engineering Brewer Zhang | Remote Remote Remote | EXPRES,NIHTS LMI EXPRES LMI | r CN,C3,C2,BC,RC,r | BM OW | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV1 (150g/mm,5000A) |
| Sat | Nov-22 | 3.0 | D D D | 7% 0% 0% | 18:14-03:09 03:09-04:38 04:38-06:07 | 8.3 / 8.9 1.5 / 1.5 1.0 / 1.5 | 0.75 0.12 0.12 | M02 Y01 L04 | Savel Brewer Zhang | Remote Remote Remote | EXPRES EXPRES LMI | CN,C3,C2,BC,RC,r | IN OW | OPEN DARK UC C2 C3 I R V B U OPEN u g r i z CN RC VR BC | DV1 (150g/mm,5000A) |
| Sun | Nov-23 | 4.0 | b D D | 12% 13% 0% | 17:43-18:14 18:14-06:08 06:08-06:39 | 0.0 / 0.0 9.9 / 11.9 0.0 / 0.0 | 0. 1.0 0. | L23 L07 L23 | Thirouin Grundy Thirouin | Remote Remote Remote | LMI LMI LMI | VR,I,g,r,i,z VR,g,r,i,z VR,I,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 | DV1 (150g/mm,5000A) |
| Mon | Nov-24 | 5.0 | b D D | 19% 20% 0% | 17:43-18:14 18:14-06:09 06:09-06:40 | 0.0 / 0.0 8.9 / 11.9 0.0 / 0.0 | 0. 1.0 0. | L23 L07 L23 | Thirouin Grundy Thirouin | Remote Remote Remote | LMI LMI LMI | VR,I,g,r,i,z VR,g,r,i,z VR,I,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 | DV1 (150g/mm,5000A) |
| Tue | Nov-25 | 6.0 | g D D | 28% 29% 0% | 18:13-21:12 21:12-03:11 03:11-06:10 | 0.0 / 3.0 5.4 / 6.0 2.5 / 3.0 | 0.25 0.5 0.25 | N09 N03 B08 | Cantelas Emery Ye | Remote Remote Remote | LMI DEVENY EXPRES | g,r,i,z DV1 (150g/mm) | CS BS | 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 | Nov-26 | 7.0 | g D | 38% 0% | 18:13-00:12 00:12-06:11 | 1.3 / 6.0 5.5 / 6.0 | 0.5 0.5 | N02 M04 | Emery Ye | Remote Remote | DEVENY LMI,NIHTS | DV1 (150g/mm) g,r,i,z,VR,OH,CN,BC,RC,C2,C3,UC | 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 | Nov-27 | 8.0 | D | 49% | 18:13-06:12 | 5.8 / 12.0 | 1.0 | L20 | Wasserman | Remote | LMI | VR | BM JF | 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 | Nov-28 | 9.0 | g g D | 59% 60% 60% | 18:13-21:13 21:13-00:13 00:13-06:12 | 0.0 / 3.0 0.0 / 3.0 4.7 / 6.0 | 0.25 0.25 0.5 | L19 Y01 B03 | Kareta Brewer Schmidt | Remote Remote Remote | LMI EXPRES DEVENY | g,r,i,z,CN,VR DV3 (300g/mm 6750A) | 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) |
| Sat | Nov-29 | 10.0 | g g | 70% 71% | 18:13-21:13 21:13-06:13 | 0.0 / 3.0 3.6 / 9.0 | 0.25 0.75 | Y01 L10 | Brewer Polanski | Remote Remote | 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) | |
| Sun | Nov-30 | 11.0 | b b g | 80% 81% 82% | 18:13-21:13 21:13-00:13 00:13-06:14 | 0.0 / 3.0 0.0 / 3.0 2.5 / 6.0 | 0.25 0.25 0.5 | E01 Y01 L03 | Engineering Brewer Hanley | Remote Remote | LMI EXPRES EXPRES,NIHTS | 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) |
| December 2025 - 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 | Dec-01 | 12.0 | b b D | 89% 90% 0% | 18:13-00:13 00:13-04:45 04:45-06:15 | 0.0 / 6.0 0.3 / 4.5 1.0 / 1.5 | 0.5 0.38 0.12 | E01 Y01 L04 | Engineering Brewer Zhang | Remote Remote | LMI EXPRES LMI,EXPRES | r CN,C3,C2,BC,RC,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) |
| Tue | Dec-02 | 13.0 | b b b g | 95% 96% 96% 96% | 18:13-00:14 00:14-03:15 03:15-04:46 04:46-06:16 | 0.0 / 6.0 0.0 / 3.0 0.0 / 1.5 0.0 / 1.5 | 0.5 0.25 0.13 0.12 | L01 L17 Y01 L04 | Hanley van Belle Brewer Zhang | Remote Remote Remote Remote | EXPRES,NIHTS EXPRES EXPRES LMI,EXPRES | CN,C3,C2,BC,RC,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 | Dec-03 | 14.0 | b | 99% | 18:13-06:16 | 0.0 / 12.1 | 1.0 | B05 | Muirhead | Remote | LMI,RIMAS | J,H,I,z | 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 | Dec-04 | 14.9 | b b b | 100% 100% 100% | 18:13-21:14 21:14-00:15 00:15-06:17 | 0.0 / 3.0 0.0 / 3.0 0.0 / 6.0 | 0.25 0.25 0.5 | L12 L17 B03 | Polanski van Belle Schmidt | Remote Remote Remote | EXPRES EXPRES DEVENY,EXPRES | DV3 (300g/mm 6750A) | BM JF | 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 | Dec-05 | 13.9 | b b | 98% 97% | 18:13-00:15 00:15-06:18 | 0.0 / 6.0 0.0 / 6.0 | 0.5 0.5 | E01 B03 | Engineering Schmidt | Remote | LMI DEVENY,EXPRES | r DV3 (300g/mm 6750A) | 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) |
| Sat | Dec-06 | 12.9 | b b | 93% 92% | 18:13-00:15 00:15-06:19 | 0.5 / 6.0 0.0 / 6.1 | 0.5 0.5 | E01 B03 | Engineering Schmidt | Remote | LMI DEVENY,EXPRES | r DV3 (300g/mm 6750A) | 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 | Dec-07 | 11.9 | D b b | 85% 85% 84% | 18:13-21:15 21:15-00:16 00:16-06:19 | 1.7 / 3.0 0.0 / 3.0 0.0 / 6.0 | 0.25 0.25 0.5 | Y01 L17 B03 | Brewer van Belle Schmidt | Remote Remote Remote | EXPRES EXPRES DEVENY,EXPRES | DV3 (300g/mm 6750A) | IN BS | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV3 (300g/mm,6750A) |
| Mon | Dec-08 | 10.9 | g | 76% | 18:13-06:20 | 2.9 / 12.1 | 1.0 | B05 | Muirhead | Remote | LMI,RIMAS | J,H,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 | Dec-09 | 9.9 | D g g | 66% 65% 64% | 18:13-00:17 00:17-03:19 03:19-06:21 | 4.0 / 6.1 0.0 / 3.0 0.0 / 3.0 | 0.5 0.25 0.25 | N07 Y01 B08 | Clark Brewer Ye | Remote Remote Remote | LMI EXPRES EXPRES | 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) |
| Wed | Dec-10 | 8.9 | D g | 55% 55% | 18:13-00:17 00:17-06:21 | 5.0 / 6.1 0.0 / 6.1 | 0.5 0.5 | L01 L03 | Hanley Hanley | Remote Remote | EXPRES,NIHTS EXPRES,NIHTS | 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 | Dec-11 | 7.9 | D | 45% | 18:14-06:22 | 6.0 / 12.1 | 1.0 | B05 | Muirhead | Remote | LMI,RIMAS | J,H,I,z | BM JF | 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 | Dec-12 | 6.9 | D g | 0% 35% | 18:14-00:18 00:18-06:23 | 5.5 / 6.1 1.4 / 6.1 | 0.5 0.5 | L01 L03 | Hanley Hanley | Remote Remote | EXPRES,NIHTS EXPRES,NIHTS | 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 | Dec-13 | 5.9 | D D g | 0% 26% 25% | 18:14-21:16 21:16-03:21 03:21-06:23 | 2.5 / 3.0 5.4 / 6.1 0.0 / 3.0 | 0.25 0.5 0.25 | L19 N01 L17 | Kareta McClure van Belle | Remote Remote Remote | LMI DEVENY EXPRES | g,r,i,z,CN,VR DV1 (150g/mm) | IN 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) |
| Sun | Dec-14 | 4.9 | D D | 0% 18% | 18:14-00:19 00:19-06:24 | 5.6 / 6.1 3.3 / 6.1 | 0.5 0.5 | M01 L03 | Stein Hanley | Remote Remote | DEVENY,LMI EXPRES,NIHTS | u,g,r,i,z,DV2 (300g/mm,4000A) | BS 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) |
| Mon | Dec-15 | 3.9 | D D | 0% 11% | 18:15-00:20 00:20-06:25 | 5.6 / 6.1 4.3 / 6.1 | 0.5 0.5 | L25 L03 | Levine Hanley | Remote Remote | GWAVES,LMI EXPRES,NIHTS | VR,RC,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 | Dec-16 | 2.9 | D D D | 0% 0% 6% | 18:15-21:17 21:17-00:21 00:21-06:25 | 2.5 / 3.0 3.1 / 3.1 5.2 / 6.1 | 0.25 0.25 0.5 | L12 L17 L03 | Polanski van Belle Hanley | Remote Remote Remote | EXPRES EXPRES EXPRES,NIHTS | 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 | Dec-17 | 1.9 | b D D | 0% 0% 0% | 17:44-18:16 18:16-06:26 06:26-06:58 | 0.0 / 0.0 11.2 / 12.2 0.0 / 0.0 | 0. 1.0 0. | L23 L22 L23 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | VR,I,g,r,i,z VR,g,r,i,z VR,I,g,r,i,z | 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 | Dec-18 | 0.9 | D | 0% | 18:16-06:26 | 11.2 / 12.2 | 1.0 | W03 | Polishook | Remote | DEVENY | DV1 150g/mm,5000A | BM JF | 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 | Dec-19 | 0.1 | D | 0% | 18:16-06:27 | 11.2 / 12.2 | 1.0 | L09 | Hemmelgarn | Remote | LMI | u,g,r,i,z,VR | 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 | Dec-20 | 1.1 | D | 0% | 18:17-06:28 | 11.2 / 12.2 | 1.0 | L20 | Wasserman | Remote | LMI | VR | 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) |
| Sun | Dec-21 | 2.1 | D D D | 4% 0% 0% | 18:17-00:23 00:23-03:25 03:25-06:28 | 5.6 / 6.1 3.0 / 3.0 2.5 / 3.0 | 0.5 0.25 0.25 | W02 Y01 E01 | Ofek Brewer Engineering | Remote Remote | DEVENY EXPRES LMI | DV2 300g/mm,4000A,GG420 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) |
| Mon | Dec-22 | 3.1 | D D D | 8% 0% 0% | 18:18-21:20 21:20-00:24 00:24-06:28 | 1.6 / 3.0 3.1 / 3.1 5.6 / 6.1 | 0.25 0.25 0.5 | L17 Y01 N05 | van Belle Brewer Madden-Watson | Remote Remote Remote | EXPRES EXPRES DEVENY | DV1 | CS BS | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV1 (150g/mm,5000A) |
| Tue | Dec-23 | 4.1 | D | 15% | 18:18-06:29 | 9.2 / 12.2 | 1.0 | E01 | Engineering | LMI | 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 | Dec-24 | 5.1 | D D D | 23% 23% 0% | 18:19-21:21 21:21-00:25 00:25-06:29 | 0.0 / 3.0 2.6 / 3.1 5.6 / 6.1 | 0.25 0.25 0.5 | E01 Y01 L21 | Engineering Brewer Sikora | 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 | Dec-25 | 6.1 | D | 33% | 18:20-06:30 | 7.2 / 12.2 | 1.0 | E01 | Engineering | LMI | r | BM JF | 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 | Dec-26 | 7.1 | b D D | 42% 44% 0% | 17:49-18:20 18:20-06:30 06:30-07:02 | 0.0 / 0.0 6.1 / 12.2 0.0 / 0.0 | 0. 1.0 0. | L23 L22 L23 | Thirouin Thirouin Thirouin | Remote Remote Remote | LMI LMI LMI | VR,I,g,r,i,z VR,g,r,i,z VR,I,g,r,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) |
| Sat | Dec-27 | 8.1 | g D | 55% 55% | 18:21-00:26 00:26-06:31 | 0.0 / 6.1 5.0 / 6.1 | 0.5 0.5 | L08 L21 | Kutra Sikora | Remote Remote | 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) | |
| Sun | Dec-28 | 9.1 | g g D | 65% 66% 67% | 18:21-21:23 21:23-00:26 00:26-06:31 | 0.0 / 3.0 0.0 / 3.0 3.9 / 6.1 | 0.25 0.25 0.5 | L17 Y01 N06 | van Belle Brewer Thomas | Remote Remote Remote | EXPRES EXPRES DEVENY,LMI | VR,g,r,i,z,DV1 | IN BS | OPEN DARK UC C2 C3 I R V B OH OPEN u g r i z CN RC VR BC | DV1 (150g/mm,5000A) |
| Mon | Dec-29 | 10.1 | b b b D | 76% 76% 78% 0% | 18:22-21:24 21:24-00:26 00:26-03:29 03:29-06:31 | 0.0 / 3.0 0.0 / 3.0 0.1 / 3.0 2.5 / 3.0 | 0.25 0.25 0.25 0.25 | E01 L12 L17 L19 | Engineering Polanski van Belle Kareta | Remote Remote Remote | LMI EXPRES EXPRES LMI | r g,r,i,z,CN,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) |
| Tue | Dec-30 | 11.1 | b | 87% | 18:23-06:31 | 1.4 / 12.1 | 1.0 | E01 | Engineering | LMI | 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 | Dec-31 | 12.1 | b | 94% | 18:23-06:32 | 0.2 / 12.2 | 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 | 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.
| 2025B Approved Target of Opportunity (ToO) Programs | |||||
|---|---|---|---|---|---|
| Program ID | Principal | ToO Type | Time Allocated (hours) | Time Remaining (hours) | Requested Instrument & Filters/Grating |
| B07 | Guidry | Slow | 2.00 | 2.00 | LMI: r |
| B08 | Ye | Slow | 6.00 | 6.00 | EXPRES,DEVENY: DV2 |
| L02 | Hanley | Slow | 6.00 | 6.00 | NIHTS: |
| L04 | Zhang | Slow | 8.00 | 7.00 | LMI,EXPRES,DEVENY: CN,C3,C2,BC,RC,g,r,i,VR |
| L06 | Moskovitz | Slow | 6.00 | 6.00 | DEVENY,LMI,NIHTS: u,g,r,i,z,VR,DV1 (150g/mm preferred) or DV2 (300g/mm) |
| L23 | Thirouin | Slow | 2.00 | 2.00 | LMI: VR,I,g,r,i,z |
| M04 | Ye | Slow | 3.00 | 2.50 | LMI,NIHTS,DEVENY: OH,CN,BC,RC,DV2 (300g/mm) |
| M05 | Ye | Slow | 4.00 | 4.00 | DEVENY,LMI: r,DV2 |
| M06 | Srinivasaragavan | Slow | 6.00 | 6.00 | DEVENY,LMI,RIMAS: u,g,r,i,z,YJHK,DV2,(300g/mm,4000A) |
| M07 | Cenko | Rapid | 2.00 | 2.00 | DEVENY,LMI,RIMAS: u,g,r,i,z,DV2 (300g/mm,4000A) |
| M07 | Cenko | Rapid | 4.00 | 4.00 | LMI,RIMAS: u,g,r,i,z |
| W04 | Zimmerman | Rapid | 10.00 | 9.00 | DEVENY: DV2 |
| Totals | 59.00 | 56.50 | |||
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@
Jose Fernandez (LDTNtOpsMgr) JF; jfernandez@
Robert Gallagher (Safety) RG; rgallagher@
Hayden Green (Safety) HG; hgreen@
Daniel Hiel (Safety) DH; dhiel@
Kyler Kuehn (DirTech) KK; kkuehn@
Vladimir Lee (Safety) VL; vlee@
Stephen Levine (Ast/TelSci/DirEd) SL; sel@
Beck Maier (TelOp) BM; emaier@
Ishara Nisley (TelOp) IN; inisley@
Observer (Observer) OBS;
Ben Shafransky (TelOp) BS; bshafransky@
Cecilia Siqueiros (TelOp) CS; csiqueiros@
Visitor (Visitor) VST;
Olivia Weiss (TelOp) OW; oweiss@
Summary of dates on which approved programs are scheduled (note some dates are partial nights):
B01 Ould Rouis 2025-08-16, 2025-09-18, 2025-10-13
B02 Dong 2025-09-10, 2025-09-11, 2025-10-12, 2025-11-09
B03 Schmidt 2025-11-20, 2025-11-28, 2025-12-04, 2025-12-05, 2025-12-06, 2025-12-07
B04 Blanton 2025-11-16, 2025-11-17, 2025-11-18, 2025-11-19
B05 Muirhead 2025-10-18, 2025-10-19, 2025-10-20, 2025-12-03, 2025-12-08, 2025-12-11
B06 Guidry 2025-09-17, 2025-10-25, 2025-11-15
B07 Guidry
B08 Ye 2025-11-04, 2025-11-14, 2025-11-25, 2025-12-09
L01 Hanley 2025-11-13, 2025-11-20, 2025-11-21, 2025-12-02, 2025-12-10, 2025-12-12
L02 Hanley
L03 Hanley 2025-11-30, 2025-12-10, 2025-12-12, 2025-12-14, 2025-12-15, 2025-12-16
L04 Zhang 2025-07-04, 2025-09-22, 2025-09-23, 2025-09-24, 2025-09-25, 2025-09-26
2025-09-27, 2025-09-29, 2025-09-30, 2025-10-02, 2025-10-03, 2025-11-21
2025-11-22, 2025-12-01, 2025-12-02
L05 Llama 2025-09-02, 2025-09-09
L06 Moskovitz
L07 Grundy 2025-10-01, 2025-11-23, 2025-11-24
L08 Kutra 2025-10-09, 2025-11-02, 2025-12-27
L09 Hemmelgarn 2025-09-16, 2025-10-29, 2025-11-10, 2025-12-19
L10 Polanski 2025-08-07, 2025-11-29
L11 Polanski 2025-11-03
L12 Polanski 2025-07-01, 2025-07-06, 2025-08-02, 2025-08-12, 2025-08-17, 2025-09-13
2025-09-22, 2025-09-27, 2025-10-04, 2025-10-09, 2025-10-15, 2025-11-02
2025-11-03, 2025-12-04, 2025-12-16, 2025-12-29
L13 Polanski 2025-08-01, 2025-08-02, 2025-08-14, 2025-08-15, 2025-08-25, 2025-08-27
2025-09-04, 2025-09-05
L14 Prato 2025-10-04, 2025-10-05
L15 Horch 2025-08-29, 2025-08-30
L16 van Belle 2025-07-31, 2025-08-26
L17 van Belle 2025-12-02, 2025-12-04, 2025-12-07, 2025-12-13, 2025-12-16, 2025-12-22
2025-12-28, 2025-12-29
L18 Schleicher 2025-08-21, 2025-08-28, 2025-08-31, 2025-09-01, 2025-09-22, 2025-09-25
2025-09-26, 2025-10-10, 2025-10-17, 2025-10-28, 2025-11-11
L19 Kareta 2025-07-01, 2025-08-02, 2025-08-21, 2025-09-13, 2025-10-23, 2025-11-28
2025-12-13, 2025-12-29
L20 Wasserman 2025-07-28, 2025-08-22, 2025-09-19, 2025-10-24, 2025-11-27, 2025-12-20
L21 Sikora 2025-08-25, 2025-09-23, 2025-12-24, 2025-12-27
L22 Thirouin 2025-09-15, 2025-09-20, 2025-10-11, 2025-10-21, 2025-10-31, 2025-11-12
2025-12-17, 2025-12-26
L23 Thirouin 2025-07-01, 2025-07-02, 2025-07-03, 2025-07-04, 2025-07-05, 2025-07-06
2025-09-15, 2025-09-20, 2025-10-01, 2025-10-11, 2025-10-21, 2025-10-31
2025-11-12, 2025-11-23, 2025-11-24, 2025-12-17, 2025-12-26
L24 Thirouin 2025-07-01, 2025-07-02, 2025-07-03, 2025-07-04, 2025-07-05, 2025-07-06
L25 Levine 2025-07-28, 2025-08-20, 2025-09-12, 2025-09-21, 2025-09-29, 2025-10-16
2025-12-15
M01 Stein 2025-10-16, 2025-12-14
M02 Savel 2025-08-12, 2025-11-22
M03 Bauer 2025-09-28, 2025-10-15
M04 Ye 2025-07-01, 2025-09-14, 2025-11-26
M05 Ye
M06 Srinivasaragavan
M07 Cenko
N01 McClure 2025-09-13, 2025-10-23, 2025-12-13
N02 Emery 2025-11-26
N03 Emery 2025-11-14, 2025-11-25
N04 Hemmelgarn 2025-09-24, 2025-10-14
N05 Madden-Watson 2025-09-14, 2025-10-26, 2025-12-22
N06 Thomas 2025-08-20, 2025-10-26, 2025-12-28
N07 Clark 2025-09-27, 2025-12-09
N08 Lee 2025-08-19
N09 Cantelas 2025-10-27, 2025-11-25
N10 Farrell 2025-07-29, 2025-11-13
T01 Megeath 2025-10-22
W01 Ben-Ami 2025-08-18
W02 Ofek 2025-08-17, 2025-12-21
W03 Polishook 2025-12-18
W04 Zimmerman 2025-07-06
W05 Zackay 2025-08-01, 2025-08-27, 2025-10-05
Y01 Brewer 2025-07-01, 2025-07-02, 2025-07-03, 2025-07-04, 2025-07-05, 2025-07-06
2025-07-28, 2025-07-29, 2025-07-30, 2025-08-01, 2025-08-03, 2025-08-05
2025-08-09, 2025-08-10, 2025-08-11, 2025-08-13, 2025-08-14, 2025-08-15
2025-08-17, 2025-08-19, 2025-08-20, 2025-08-23, 2025-08-24, 2025-08-27
2025-09-06, 2025-09-07, 2025-09-09, 2025-09-12, 2025-09-23, 2025-09-25
2025-09-26, 2025-09-30, 2025-10-01, 2025-10-04, 2025-10-05, 2025-10-06
2025-10-07, 2025-10-08, 2025-10-09, 2025-10-10, 2025-10-15, 2025-10-16
2025-10-17, 2025-10-23, 2025-10-27, 2025-10-28, 2025-11-02, 2025-11-03
2025-11-04, 2025-11-05, 2025-11-06, 2025-11-07, 2025-11-08, 2025-11-11
2025-11-14, 2025-11-21, 2025-11-22, 2025-11-28, 2025-11-29, 2025-11-30
2025-12-01, 2025-12-02, 2025-12-07, 2025-12-09, 2025-12-21, 2025-12-22
2025-12-24, 2025-12-28
E01 Engineering 2025-07-01, 2025-07-02, 2025-07-03, 2025-07-04, 2025-07-05, 2025-07-06
2025-07-29, 2025-07-30, 2025-08-03, 2025-08-04, 2025-08-05, 2025-08-06
2025-08-08, 2025-08-09, 2025-08-10, 2025-08-11, 2025-08-13, 2025-08-14
2025-08-15, 2025-08-19, 2025-08-23, 2025-08-24, 2025-09-03, 2025-09-04
2025-09-05, 2025-09-06, 2025-09-07, 2025-09-08, 2025-09-12, 2025-09-24
2025-09-30, 2025-10-01, 2025-10-02, 2025-10-03, 2025-10-06, 2025-10-07
2025-10-08, 2025-10-10, 2025-10-17, 2025-10-27, 2025-10-28, 2025-10-30
2025-11-01, 2025-11-04, 2025-11-05, 2025-11-06, 2025-11-07, 2025-11-08
2025-11-11, 2025-11-13, 2025-11-20, 2025-11-21, 2025-11-30, 2025-12-01
2025-12-05, 2025-12-06, 2025-12-21, 2025-12-23, 2025-12-24, 2025-12-25
2025-12-29, 2025-12-30, 2025-12-31
E04 Shutdown 2025-07-07, 2025-07-08, 2025-07-09, 2025-07-10, 2025-07-11, 2025-07-12
2025-07-13, 2025-07-14, 2025-07-15, 2025-07-16, 2025-07-17, 2025-07-18
2025-07-19, 2025-07-20, 2025-07-21, 2025-07-22, 2025-07-23, 2025-07-24
2025-07-25, 2025-07-26, 2025-07-27
ID PI Name Title B01 Ould Rouis The search for most massive exoplanet host star B02 Dong Exploring Stellar Coronal Mass Ejections through LDT Spectroscopy B03 Schmidt The Temporal Variability of Solid State O2 on Europa B04 Blanton The High-Redshift COBRA Survey, and Graduate Student Observing Trip B05 Muirhead The Perkins Infrared Exosatellite Survey (PINES) on LDT-RIMAS B06 Guidry Precision Photometry of Exoplanetary Debris Transiting White Dwarfs B07 Guidry Simultaneous Optical-Ultraviolet Observations of Exoplanetary Debris Transiting a White Dwarf B08 Ye High Resolution Spectroscopy of Bright Cometary Comae L01 Hanley Constraining the vertical abundances of haze and methane on Titan L02 Hanley Methane Monsoons on Titan L03 Hanley Salts on Europa's Surface L04 Zhang Comets near the Sun L05 Llama Exploring the origins of sub-Neptune planets by measuring stellar obliquities L06 Moskovitz NEO Rapid Response: Close Encounters of the Asteroid Kind L07 Grundy Mutual events in the trans-Neptunian belt L08 Kutra From Day to Night: Probing the Atmosphere of an Ultra-Hot Jupiter Across Changing Orbital Phases L09 Hemmelgarn Color and Activity Survey of Centaurs L10 Polanski Spin-Orbit Measurements of 3 Hot-Jupiters in Binary Systems L11 Polanski Spin-Orbit Measurement of a Sub-Neptune in a Bright Multi-planet System L12 Polanski The Jovian Architectures Survey (JAS): An EXPRES Route to Understanding ExoSolar Systems L13 Polanski A Speckle-Spectroscopic Survey of the Northern PLATO Field L14 Prato Higher Order Multiplicity for Young Spectroscopic Binary Systems L15 Horch Orbits and Masses of Nearby Low Mass Binary Stars with QWSSI L16 van Belle Bowling for Turkeys: Searching for Triple Systems in Disk Wide Binaries L17 van Belle The Forgotten Planets of Multi-Star Systems L18 Schleicher The Rotation and Phase Function of Comet 47P/Ashbrook-Jackson L19 Kareta Faint Astrometry of the Dark Comets L20 Wasserman Astrometric Measures of Centaurs and Kuiper Belt Objects L21 Sikora Phase Resolved Atmospheric Characterization of Ultra Hot Jupiters With EXPRES L22 Thirouin The fraction of contact binaries in the trans-Neptunian belt L23 Thirouin Twilight Asteroids: Target of Opportunity and Survey L24 Thirouin Rotational and physical properties of 2025 GN1 L25 Levine Occultations of Bodies in the Outer Solar System M01 Stein Classically Scheduled Imaging & Spectroscopy of Transients and Their Host Galaxies M02 Savel Measuring exoplanetary magnetic fields through their variable circulation M03 Bauer Observations of CO + CO2 Active Periodic Comets Observed by NEOWISE, Newly Discovered Centaurs and Active Centaurs, and Planetary Defense Targets M04 Ye Observations of Comets and Asteroids M05 Ye Observations of near-Sun comets M06 Srinivasaragavan ToO Observations of Relativistic Transients From the Zwicky Transient Facility M07 Cenko ToO Observations of Gravitational Wave Counterparts in the Fourth LIGO-Virgo-KAGRA Observing Run N01 McClure Visible spectra of small Polana Family members N02 Emery Visible spectra of primitive asteroids N03 Emery Visible spectra of primitive asteroids N04 Hemmelgarn Color and Activity Survey of Centaurs N05 Madden-Watson Visible Spectroscopy of Low-Perihelion Objects N06 Thomas Compositional Followup of Low Delta-V NEOs N07 Clark Early LSST Followup N08 Lee A Taxonomic Determination of Targets for a Future Mission to the Asteroid Belt N09 Cantelas Follow-up observations of unusual NEOs. N10 Farrell Confirmation and Characterization of Unusual Active Bodies T01 Megeath ASTR4880 W01 Ben-Ami Membership Validation and Age Determination for a MS+WD System in The Theia-167 Open Cluster W02 Ofek Spectroscopic characterization of variable sources found by the Large Array Survey Telescope (LAST). W03 Polishook From maturity to freshness - studying resurfacing of weathered asteroids by searching for spectral variation on Q-type bodies W04 Zimmerman Infant Supernovae -- Observing Massive Stars as They Explode W05 Zackay Speckle Pattern Reconstruction for High Contrast Imaging Y01 Brewer Yale Exoplanet Survey E01 Engineering Night Engineering E04 Shutdown Summer Shutdown
New users needing training: 2025-08-01: L13 Polanski: G van Belle will train A Polanski on QWSSI. 2025-08-01: W05 Zackay: New LDT and QWSSI observers. 2025-08-16: B01 Ould Rouis: CoIs are new DeVeny users. 2025-08-17: W02 Ofek: Ofek and Polishook are new LDT and DeVeny observers. 2025-08-18: W01 Ben-Ami: Ironi is a new LDT and DeVeny observer. 2025-09-10: B02 Dong: Q. Ye will assist Ch. Dong and students. 2025-09-16: L09 Hemmelgarn: Hemmelgarn could use a refresher on LDT and LMI. 2025-09-24: N04 Hemmelgarn: Hemmelgarn would like a refresher on LDT and LMI. 2025-10-18: B05 Muirhead: New RIMAS users (if RIMAS is ready) 2025-10-27: N09 Cantelas: Cantelas is a new user (LDT and LMI). 2025-12-18: W03 Polishook: Polishook is new LDT observer; working with Moskovitz.
Latest as of 2025-07-27T22:32:08.510970 UTC