GCN Circular 20569
Subject
LIGO/Virgo G270580: Las Cumbres Observatory Follow-up Observations
Date
2017-02-01T15:54:33Z (8 years ago)
From
Iair Arcavi at LCOGT <iarcavi@lcogt.net>
I. Arcavi (UCSB/Las Cumbres Obs), M. Zalzman, D. Poznanski (TAU), L.P.
Singer (NASA/GSFC), D. A. Howell, C. McCully, G. Hosseinzadeh, S. Vasylyev
(Las Cumbres Obs/UCSB), S. Valenti (UC Davis), T. Piran (HUJI), D. Kasen
and J. Barnes (UC Berkeley) report on optical followup observations of
LIGO/Virgo G270580 trigger using the Las Cumbres Observatory worldwide
telescope network. We selected 50 nearby galaxies in the 90% LIGO
localization region, prioritized by their position in the localization
region, their mass, and inversely with their distance.
Of the selected 50 galaxies we were able to observe 32 with the 0.4m and 1m
Las Cumbres Observatory telescopes between Jan 21 and Jan 23. A total of
151 images were obtained in the g, r and i filters using 180 second
exposures (see full list below). Six of these images show no sources at
all, probably due to bad weather conditions (these images have no limiting
magnitudes in the list below).
Comparing to archival SDSS and DSS images, we find no obvious optical
transients.
Below is a log of the observations (CTIO = Cerro Tololo Inter-American
Observatory, Chile; SSO = Siding Spring, Australia; SAAO = South African
Astronomical Observatory, South Africa; McDonald = McDonald Observatory,
Texas, USA; Teide = Teide Observatory, Tenerife, Spain):
| Galaxy | RA | Dec | Distance [Mpc] | Time (UT) | Filter | Telescope | Airmass | 3-Sigma Limiting Mag |
| Argo Dwarf Irregular | 106.323 | -58.5204 | 5.224 | 2017-01-21 06:51:54 | g | CTIO 1m | 1.36 | 21.17 |
| Argo Dwarf Irregular | 106.323 | -58.5204 | 5.224 | 2017-01-21 06:55:50 | r | CTIO 1m | 1.37 | 21.4 |
| Argo Dwarf Irregular | 106.323 | -58.5204 | 5.224 | 2017-01-21 06:59:42 | i | CTIO 1m | 1.38 | 20.97 |
| GALEXMSC J090836.58+051727.7 | 137.152 | 5.29135 | 5.7 | 2017-01-21 07:27:22 | g | CTIO 1m | 1.36 | 21.76 |
| GALEXMSC J090836.58+051727.7 | 137.152 | 5.29135 | 5.7 | 2017-01-21 07:31:14 | r | CTIO 1m | 1.37 | 21.88 |
| GALEXMSC J090836.58+051727.7 | 137.152 | 5.29135 | 5.7 | 2017-01-21 07:35:07 | i | CTIO 1m | 1.38 | 21.44 |
| NGC 4656 NED01 | 190.990204 | 32.170288 | 5.47 | 2017-01-21 08:05:29 | g | CTIO 1m | 2.35 | 21.22 |
| NGC 4656 NED01 | 190.990204 | 32.170288 | 5.47 | 2017-01-21 08:09:26 | r | CTIO 1m | 2.33 | 21.45 |
| NGC 4656 NED01 | 190.990204 | 32.170288 | 5.47 | 2017-01-21 08:13:17 | i | CTIO 1m | 2.3 | 21.14 |
| GALEXMSC J094444.03+093657.4 | 146.183 | 9.61606 | 7.681 | 2017-01-21 13:44:39 | g | SSO 1m | 1.55 | 21.42 |
| GALEXMSC J094444.03+093657.4 | 146.183 | 9.61606 | 7.681 | 2017-01-21 13:48:34 | r | SSO 1m | 1.53 | 21.21 |
| GALEXMSC J094444.03+093657.4 | 146.183 | 9.61606 | 7.681 | 2017-01-21 13:52:26 | i | SSO 1m | 1.51 | 20.52 |
| Leo III | 149.86 | 30.7463 | 0.805 | 2017-01-21 14:36:23 | g | SSO 0.4m | 2.35 | 19.79 |
| Leo III | 149.86 | 30.7463 | 0.805 | 2017-01-21 14:39:49 | r | SSO 0.4m | 2.33 | 20.22 |
| Leo III | 149.86 | 30.7463 | 0.805 | 2017-01-21 14:43:08 | i | SSO 0.4m | 2.31 | 19.44 |
| UGC 07990 | 192.613 | 28.35283 | 6.9 | 2017-01-21 16:40:36 | g | SSO 1m | 2.53 | 20.64 |
| UGC 07990 | 192.613 | 28.35283 | 6.9 | 2017-01-21 16:44:29 | r | SSO 1m | 2.49 | 20.76 |
| UGC 07990 | 192.613 | 28.35283 | 6.9 | 2017-01-21 16:48:23 | i | SSO 1m | 2.45 | 20.35 |
| NGC 4789A | 193.521866 | 27.14963 | 4.3 | 2017-01-21 17:15:35 | g | SSO 0.4m | 2.17 | 19.17 |
| NGC 4789A | 193.521866 | 27.14963 | 4.3 | 2017-01-21 17:18:55 | r | SSO 0.4m | 2.15 | 19.6 |
| NGC 4789A | 193.521866 | 27.14963 | 4.3 | 2017-01-21 17:22:15 | i | SSO 0.4m | 2.13 | 19.07 |
| VCC 0165 | 183.972046 | 13.215795 | 3.64273 | 2017-01-21 17:27:35 | g | SSO 0.4m | 1.43 | 19.7 |
| VCC 0165 | 183.972046 | 13.215795 | 3.64273 | 2017-01-21 17:30:54 | r | SSO 0.4m | 1.43 | 19.92 |
| VCC 0165 | 183.972046 | 13.215795 | 3.64273 | 2017-01-21 17:34:15 | i | SSO 0.4m | 1.42 | 19.24 |
| SSTSL2 J125901.39+345140.4 | 194.758 | 34.86082 | 7.586 | 2017-01-21 17:51:24 | g | SSO 1m | 2.63 | 20.51 |
| SSTSL2 J125901.39+345140.4 | 194.758 | 34.86082 | 7.586 | 2017-01-21 17:55:15 | r | SSO 1m | 2.61 | 20.58 |
| SSTSL2 J125901.39+345140.4 | 194.758 | 34.86082 | 7.586 | 2017-01-21 17:59:07 | i | SSO 1m | 2.59 | 20.17 |
| ESO 154- G 023 | 44.209 | -54.57064 | 5.546 | 2017-01-21 18:45:47 | g | SAAO 1m | 1.11 | 20.76 |
| ESO 154- G 023 | 44.209 | -54.57064 | 5.546 | 2017-01-21 18:49:41 | r | SAAO 1m | 1.12 | 21.24 |
| ESO 154- G 023 | 44.209 | -54.57064 | 5.546 | 2017-01-21 18:53:36 | i | SAAO 1m | 1.12 | 20.82 |
| SSTSL2 J023747.07-612018.8 | 39.4491 | -61.34029 | 4.898 | 2017-01-21 19:12:49 | g | SAAO 1m | 1.22 | 21.65 |
| SSTSL2 J023747.07-612018.8 | 39.4491 | -61.34029 | 4.898 | 2017-01-21 19:16:44 | r | SAAO 1m | 1.23 | 21.55 |
| SSTSL2 J023747.07-612018.8 | 39.4491 | -61.34029 | 4.898 | 2017-01-21 19:20:39 | i | SAAO 1m | 1.23 | 20.87 |
| UGC 05288 | 147.821 | 7.82732 | 6.8 | 2017-01-21 21:49:46 | g | SAAO 1m | 1.7 | 21.52 |
| UGC 05288 | 147.821 | 7.82732 | 6.8 | 2017-01-21 21:53:41 | r | SAAO 1m | 1.67 | 21.39 |
| UGC 05288 | 147.821 | 7.82732 | 6.8 | 2017-01-21 21:57:35 | i | SAAO 1m | 1.65 | 20.73 |
| SDSS J095645.61+284943.4 | 149.191 | 28.82783 | 5.9 | 2017-01-21 22:20:54 | g | SAAO 1m | 2.66 | 21.09 |
| SDSS J095645.61+284943.4 | 149.191 | 28.82783 | 5.9 | 2017-01-21 22:24:47 | r | SAAO 1m | 2.62 | 20.95 |
| SDSS J095645.61+284943.4 | 149.191 | 28.82783 | 5.9 | 2017-01-21 22:28:44 | i | SAAO 1m | 2.58 | 20.33 |
| UGC 05427 | 151.17 | 29.3644 | 7.1 | 2017-01-21 22:33:53 | g | SAAO 1m | 2.66 | 21.01 |
| UGC 05209 | 146.267 | 32.2379 | 6.7 | 2017-01-21 22:50:22 | g | SAAO 1m | 2.61 | 21.3 |
| UGC 05209 | 146.267 | 32.2379 | 6.7 | 2017-01-21 22:54:19 | r | SAAO 1m | 2.58 | 21.09 |
| UGC 05209 | 146.267 | 32.2379 | 6.7 | 2017-01-21 22:58:15 | i | SAAO 1m | 2.55 | 20.45 |
| PG 1216+069:[CM2009] 11493 | 184.975 | 6.6658 | 7.5 | 2017-01-21 23:04:52 | g | SAAO 1m | 2.46 | 21.22 |
| UGC 05272b | 147.581 | 31.45604 | 7.1 | 2017-01-21 23:04:59 | g | SAAO 1m | 2.47 | 21.07 |
| PG 1216+069:[CM2009] 11493 | 184.975 | 6.6658 | 7.5 | 2017-01-21 23:08:46 | r | SAAO 1m | 2.39 | 21 |
| UGC 05272b | 147.581 | 31.45604 | 7.1 | 2017-01-21 23:08:54 | r | SAAO 1m | 2.44 | 20.94 |
| PG 1216+069:[CM2009] 11493 | 184.975 | 6.6658 | 7.5 | 2017-01-21 23:12:41 | i | SAAO 1m | 2.33 | 20.35 |
| UGC 05272b | 147.581 | 31.45604 | 7.1 | 2017-01-21 23:12:49 | i | SAAO 1m | 2.42 | 20.28 |
| IC 3142 NED01 | 184.758 | 13.98252 | 7.139 | 2017-01-21 23:20:34 | g | SAAO 1m | 2.66 | 21.07 |
| IC 3142 NED01 | 184.758 | 13.98252 | 7.139 | 2017-01-21 23:24:28 | r | SAAO 1m | 2.58 | 20.87 |
| IC 3142 NED01 | 184.758 | 13.98252 | 7.139 | 2017-01-21 23:28:23 | i | SAAO 1m | 2.51 | 20.07 |
| UGC 05186 | 145.745 | 33.26551 | 6.9 | 2017-01-21 23:35:28 | g | SAAO 1m | 2.46 | 21.04 |
| IC 3519 | 188.66 | 15.60278 | 7.611 | 2017-01-21 23:50:32 | g | SAAO 1m | 2.51 | 21.15 |
| IC 3519 | 188.66 | 15.60278 | 7.611 | 2017-01-21 23:54:25 | r | SAAO 1m | 2.45 | 21.11 |
| UGC 05186 | 145.745 | 33.26551 | 6.9 | 2017-01-21 23:56:07 | g | SAAO 1m | 2.42 | 21.38 |
| IC 3519 | 188.66 | 15.60278 | 7.611 | 2017-01-21 23:58:21 | i | SAAO 1m | 2.39 | 20.35 |
| UGC 05186 | 145.745 | 33.26551 | 6.9 | 2017-01-22 00:00:03 | r | SAAO 1m | 2.41 | 21.21 |
| UGC 05427 | 151.17 | 29.3644 | 7.1 | 2017-01-22 00:03:46 | g | SAAO 1m | 2.13 | 21.2 |
| UGC 05186 | 145.745 | 33.26551 | 6.9 | 2017-01-22 00:03:57 | i | SAAO 1m | 2.41 | 20.52 |
| UGC 05427 | 151.17 | 29.3644 | 7.1 | 2017-01-22 00:07:41 | r | SAAO 1m | 2.12 | 21.13 |
| UGC 05427 | 151.17 | 29.3644 | 7.1 | 2017-01-22 00:11:36 | i | SAAO 1m | 2.12 | 20.56 |
| SDSS J123348.08+151008.8 | 188.451 | 15.16879 | 6.4 | 2017-01-22 00:20:48 | g | SAAO 1m | 2.08 | 21.35 |
| SDSS J123348.08+151008.8 | 188.451 | 15.16879 | 6.4 | 2017-01-22 00:24:44 | r | SAAO 1m | 2.04 | 21.29 |
| UGC 05272 | 147.593 | 31.48767 | 7.1 | 2017-01-22 00:25:33 | g | SAAO 1m | 2.26 | 21.12 |
| SDSS J123348.08+151008.8 | 188.451 | 15.16879 | 6.4 | 2017-01-22 00:28:39 | i | SAAO 1m | 2.01 | 20.71 |
| UGC 05272 | 147.593 | 31.48767 | 7.1 | 2017-01-22 00:29:29 | r | SAAO 1m | 2.26 | 21.02 |
| UGC 05272 | 147.593 | 31.48767 | 7.1 | 2017-01-22 00:33:24 | i | SAAO 1m | 2.26 | 20.37 |
| UGC 05288 | 147.821 | 7.82732 | 6.8 | 2017-01-22 04:01:37 | g | CTIO 1m | 1.61 | 21.18 |
| UGC 05288 | 147.821 | 7.82732 | 6.8 | 2017-01-22 04:05:29 | r | CTIO 1m | 1.58 | 21.34 |
| UGC 05288 | 147.821 | 7.82732 | 6.8 | 2017-01-22 04:09:20 | i | CTIO 1m | 1.56 | 20.95 |
| UGC 05427 | 151.17 | 29.3644 | 7.1 | 2017-01-22 04:21:31 | g | CTIO 1m | 2.66 | 21.16 |
| UGC 05427 | 151.17 | 29.3644 | 7.1 | 2017-01-22 04:25:23 | r | CTIO 1m | 2.61 | 21 |
| UGC 05427 | 151.17 | 29.3644 | 7.1 | 2017-01-22 04:29:16 | i | CTIO 1m | 2.56 | 20.77 |
| GALEXMSC J094444.03+093657.4 | 146.183 | 9.61606 | 7.681 | 2017-01-22 04:31:58 | g | CTIO 1m | 1.48 | 21.64 |
| GALEXMSC J094444.03+093657.4 | 146.183 | 9.61606 | 7.681 | 2017-01-22 04:35:48 | r | CTIO 1m | 1.46 | 21.37 |
| GALEXMSC J094444.03+093657.4 | 146.183 | 9.61606 | 7.681 | 2017-01-22 04:39:41 | i | CTIO 1m | 1.45 | 20.88 |
| PG 1216+069:[CM2009] 11493 | 184.975 | 6.6658 | 7.5 | 2017-01-22 04:58:26 | g | CTIO 1m | 2.61 | 21.31 |
| PG 1216+069:[CM2009] 11493 | 184.975 | 6.6658 | 7.5 | 2017-01-22 05:02:18 | r | CTIO 1m | 2.53 | 21.6 |
| PG 1216+069:[CM2009] 11493 | 184.975 | 6.6658 | 7.5 | 2017-01-22 05:06:09 | i | CTIO 1m | 2.45 | 21.14 |
| SDSS J095645.61+284943.4 | 149.191 | 28.82783 | 5.9 | 2017-01-22 05:14:36 | g | CTIO 1m | 2.11 | 21.24 |
| SDSS J095645.61+284943.4 | 149.191 | 28.82783 | 5.9 | 2017-01-22 05:18:28 | r | CTIO 1m | 2.09 | 21.39 |
| SDSS J095645.61+284943.4 | 149.191 | 28.82783 | 5.9 | 2017-01-22 05:22:21 | i | CTIO 1m | 2.07 | 21.13 |
| IC 3519 | 188.66 | 15.60278 | 7.611 | 2017-01-22 05:58:25 | g | CTIO 1m | 2.35 | 21.54 |
| IC 3519 | 188.66 | 15.60278 | 7.611 | 2017-01-22 06:02:16 | r | CTIO 1m | 2.29 | 21.06 |
| SDSS J123348.08+151008.8 | 188.451 | 15.16879 | 6.4 | 2017-01-22 06:05:35 | g | CTIO 1m | 2.21 | 21.17 |
| IC 3519 | 188.66 | 15.60278 | 7.611 | 2017-01-22 06:06:10 | i | CTIO 1m | 2.24 | 20.66 |
| SDSS J123348.08+151008.8 | 188.451 | 15.16879 | 6.4 | 2017-01-22 06:09:28 | r | CTIO 1m | 2.17 | 21.23 |
| SDSS J123348.08+151008.8 | 188.451 | 15.16879 | 6.4 | 2017-01-22 06:13:21 | i | CTIO 1m | 2.12 | 20.95 |
| UGC 05272 | 147.593 | 31.48767 | 7.1 | 2017-01-22 06:47:01 | g | CTIO 1m | 2.11 | 21.18 |
| UGC 05272 | 147.593 | 31.48767 | 7.1 | 2017-01-22 06:50:55 | r | CTIO 1m | 2.11 | 20.95 |
| UGC 05272 | 147.593 | 31.48767 | 7.1 | 2017-01-22 06:54:47 | i | CTIO 1m | 2.12 | 20.47 |
| UGC 07990 | 192.613 | 28.35283 | 6.9 | 2017-01-22 08:12:12 | g | CTIO 1m | 2.06 | 21.08 |
| UGC 07990 | 192.613 | 28.35283 | 6.9 | 2017-01-22 08:16:12 | r | CTIO 1m | 2.04 | 21.01 |
| UGC 07990 | 192.613 | 28.35283 | 6.9 | 2017-01-22 08:20:04 | i | CTIO 1m | 2.02 | 20.63 |
| GALEXMSC J090836.58+051727.7 | 137.152 | 5.29135 | 5.7 | 2017-01-22 08:25:28 | g | CTIO 1m | 1.64 | 21.23 |
| GALEXMSC J090836.58+051727.7 | 137.152 | 5.29135 | 5.7 | 2017-01-22 08:29:21 | r | CTIO 1m | 1.66 | 21.13 |
| GALEXMSC J090836.58+051727.7 | 137.152 | 5.29135 | 5.7 | 2017-01-22 08:33:15 | i | CTIO 1m | 1.69 | 20.66 |
| Leo III | 149.86 | 30.7463 | 0.805 | 2017-01-22 14:32:28 | g | SSO 0.4m | 2.35 | 19.49 |
| Leo III | 149.86 | 30.7463 | 0.805 | 2017-01-22 14:35:51 | r | SSO 0.4m | 2.33 | 20.14 |
| Leo III | 149.86 | 30.7463 | 0.805 | 2017-01-22 14:39:11 | i | SSO 0.4m | 2.31 | 19.33 |
| VCC 0165 | 183.972046 | 13.215795 | 3.64273 | 2017-01-22 14:53:58 | g | SSO 0.4m | 2.33 | 19.72 |
| ESO 540- G 032 | 12.6022 | -19.90615 | 3.467 | 2017-01-22 19:43:22 | g | Teide 0.4m | 1.78 | 19.16 |
| ESO 154- G 023 | 44.209 | -54.57064 | 5.546 | 2017-01-22 21:46:03 | g | SAAO 1m | 1.57 | 21.75 |
| ESO 154- G 023 | 44.209 | -54.57064 | 5.546 | 2017-01-22 21:49:57 | r | SAAO 1m | 1.59 | 21.5 |
| ESO 154- G 023 | 44.209 | -54.57064 | 5.546 | 2017-01-22 21:53:52 | i | SAAO 1m | 1.61 | 20.78 |
| UGC 05186 | 145.745 | 33.26551 | 6.9 | 2017-01-22 22:50:27 | g | SAAO 1m | 2.67 | 17.45 |
| UGC 05186 | 145.745 | 33.26551 | 6.9 | 2017-01-22 22:54:22 | r | SAAO 1m | 2.64 | n/a |
| UGC 05186 | 145.745 | 33.26551 | 6.9 | 2017-01-22 22:58:17 | i | SAAO 1m | 2.62 | 16.77 |
| UGC 05272b | 147.581 | 31.45604 | 7.1 | 2017-01-22 23:11:44 | g | SAAO 1m | 2.41 | n/a |
| IC 3142 NED01 | 184.758 | 13.98252 | 7.139 | 2017-01-22 23:16:59 | g | SAAO 1m | 2.65 | 18.16 |
| IC 3142 NED01 | 184.758 | 13.98252 | 7.139 | 2017-01-22 23:20:53 | r | SAAO 1m | 2.57 | 18.12 |
| IC 3142 NED01 | 184.758 | 13.98252 | 7.139 | 2017-01-22 23:24:46 | i | SAAO 1m | 2.5 | 19.94 |
| UGC 05272b | 147.581 | 31.45604 | 7.1 | 2017-01-22 23:44:30 | g | SAAO 1m | 2.29 | 19.89 |
| UGC 05209 | 146.267 | 32.2379 | 6.7 | 2017-01-22 23:44:33 | g | SAAO 1m | 2.34 | 20.28 |
| UGC 05272b | 147.581 | 31.45604 | 7.1 | 2017-01-22 23:48:24 | r | SAAO 1m | 2.28 | 19.09 |
| UGC 05209 | 146.267 | 32.2379 | 6.7 | 2017-01-22 23:48:28 | r | SAAO 1m | 2.34 | 20.27 |
| UGC 05272b | 147.581 | 31.45604 | 7.1 | 2017-01-22 23:52:19 | i | SAAO 1m | 2.27 | n/a |
| UGC 05209 | 146.267 | 32.2379 | 6.7 | 2017-01-22 23:52:24 | i | SAAO 1m | 2.33 | n/a |
| NGC 1343 | 54.456913 | 72.571335 | 4.246 | 2017-01-23 00:41:15 | g | Teide 0.4m | 1.73 | 19.2 |
| Argo Dwarf Irregular | 106.323 | -58.5204 | 5.224 | 2017-01-23 02:08:17 | g | CTIO 1m | 1.18 | 21.37 |
| Argo Dwarf Irregular | 106.323 | -58.5204 | 5.224 | 2017-01-23 02:12:08 | r | CTIO 1m | 1.18 | 21.44 |
| Argo Dwarf Irregular | 106.323 | -58.5204 | 5.224 | 2017-01-23 02:16:01 | i | CTIO 1m | 1.17 | 21.16 |
| 2MASX J03325700+6633484 | 53.237503 | 66.563446 | 7.4105 | 2017-01-23 02:50:25 | g | McDonald 1m | 1.24 | 21.35 |
| 2MASX J03325700+6633484 | 53.237503 | 66.563446 | 7.4105 | 2017-01-23 02:54:20 | r | McDonald 1m | 1.24 | 20.98 |
| 2MASX J03325700+6633484 | 53.237503 | 66.563446 | 7.4105 | 2017-01-23 02:58:14 | i | McDonald 1m | 1.24 | 20.3 |
| 2MASX J03553785+6521238 | 58.907715 | 65.356613 | 4.71075 | 2017-01-23 07:00:35 | g | McDonald 1m | 1.62 | 21.49 |
| 2MASX J03553785+6521238 | 58.907715 | 65.356613 | 4.71075 | 2017-01-23 07:04:30 | r | McDonald 1m | 1.64 | 21.24 |
| 2MASX J03553785+6521238 | 58.907715 | 65.356613 | 4.71075 | 2017-01-23 07:08:24 | i | McDonald 1m | 1.65 | 20.63 |
| IC 4182 | 196.456 | 37.60495 | 4.487 | 2017-01-23 07:15:22 | g | McDonald 1m | 1.78 | 22.04 |
| IC 4182 | 196.456 | 37.60495 | 4.487 | 2017-01-23 07:19:17 | r | McDonald 1m | 1.75 | 21.82 |
| IC 4182 | 196.456 | 37.60495 | 4.487 | 2017-01-23 07:23:13 | i | McDonald 1m | 1.72 | 21.13 |
| NGC 4656 NED01 | 190.990204 | 32.170288 | 5.47 | 2017-01-23 07:28:16 | g | McDonald 1m | 1.57 | 21.69 |
| NGC 4656 NED01 | 190.990204 | 32.170288 | 5.47 | 2017-01-23 07:32:12 | r | McDonald 1m | 1.54 | 21.43 |
| NGC 4656 NED01 | 190.990204 | 32.170288 | 5.47 | 2017-01-23 07:36:07 | i | McDonald 1m | 1.52 | 20.92 |
| 2MASX J06373692+7225065 | 99.403862 | 72.418488 | 5.5 | 2017-01-23 07:41:50 | g | McDonald 1m | 1.43 | 21.59 |
| 2MASX J06373692+7225065 | 99.403862 | 72.418488 | 5.5 | 2017-01-23 07:45:49 | r | McDonald 1m | 1.43 | 21.32 |
| 2MASX J06373692+7225065 | 99.403862 | 72.418488 | 5.5 | 2017-01-23 07:49:44 | i | McDonald 1m | 1.44 | 20.66 |
| NGC 2787 | 139.82724 | 69.2034 | 7.482 | 2017-01-23 09:45:37 | g | McDonald 1m | 1.33 | 21.61 |
| NGC 2787 | 139.82724 | 69.2034 | 7.482 | 2017-01-23 09:49:37 | r | McDonald 1m | 1.33 | 22.34 |
| NGC 2787 | 139.82724 | 69.2034 | 7.482 | 2017-01-23 09:53:32 | i | McDonald 1m | 1.33 | 21.76 |
| NGC 0247 | 11.78564 | -20.760401 | 3.75 | 2017-01-23 10:50:18 | g | SSO 0.4m | 1.83 | 19.46 |
| NGC 0247 | 11.78564 | -20.760401 | 3.75 | 2017-01-23 10:53:39 | r | SSO 0.4m | 1.86 | 19.59 |
| NGC 0247 | 11.78564 | -20.760401 | 3.75 | 2017-01-23 10:57:00 | i | SSO 0.4m | 1.9 | 18.61 |
| 2MASX J01082948-2208060 | 17.122864 | -22.135002 | 2.44225 | 2017-01-23 11:05:16 | g | SSO 0.4m | 1.74 | 19.54 |
| 2MASX J01082948-2208060 | 17.122864 | -22.135002 | 2.44225 | 2017-01-23 11:08:36 | r | SSO 0.4m | 1.77 | 19.68 |
| 2MASX J01082948-2208060 | 17.122864 | -22.135002 | 2.44225 | 2017-01-23 11:11:57 | i | SSO 0.4m | 1.8 | 18.71 |
| NGC 1343 | 54.456913 | 72.571335 | 4.246 | 2017-01-23 20:15:09 | g | Teide 0.4m | 1.4 | 20.38 |
| NGC 1343 | 54.456913 | 72.571335 | 4.246 | 2017-01-23 20:18:30 | r | Teide 0.4m | 1.4 | 19.88 |
| NGC 1343 | 54.456913 | 72.571335 | 4.246 | 2017-01-23 20:21:54 | i | Teide 0.4m | 1.4 | 19.83 |
| GALEXASC J042516.20+724809.7 | 66.3189 | 72.80665 | 3.784 | 2017-01-24 00:18:34 | g | Teide 0.4m | 1.57 | 18.62 |