D50 Trigger and Burst Information

D50 GRB TRIGGERED OBSERVATION
GRB/TRIGGER OBSERVATION

Trig Date****** Time UT RA Dec Error Tel. ID GRB Tobs-T0 Tobs-Ttrig Tspent GRB status good bad Obs. status

2021

1081073 2021-10-24 22:20:36 10:18:51.12 +24:34:05.16 52274 D50 GRB 211024B 3.16h - 3.2h Swift GRB 175 - GRB 211024B: Optical afterglow observation by Ondrejov D50

656687148 2021-10-23 13:05:43 4:52:37.070 +85:19:25.20 - SBT 5003 GRB 211023A 1.5706d - 3h Fermi/GBM,LAT + AGILE 162 - GRB 211023A: optical detection by SBT in Ondrejov, img

646388180 2021-06-26 08:16:15 14:46:05.83 -01:09:22.5 5.7 D50 5015 GRB 210626A 0.5626d - 2h Fermi/GBM,LAT + Swft/XRT 60 - A faint candidate GRB 210626A: Ondrejov D50 optical limit

1044382 2021-04-20 04:43:57.230 16:57:18.000 +42:34:12.100 0.3 D50 5014 GRB 210420B 2.59h 2.59h Swft/XRT/UVOT 48 ? Observed by many, manual target, r' = 18.6 at start (gcn circular,img)

639708801 2021-04-10 04:43:57.230 00:53:17.520 +45:21:45.368 2.0 SBT
D50 59196
5013 GRB 210410A 1m 4.072ss
56min 40.207ss
56min Fermi/GBM,LAT + Swft/XRT 30
45 30
45 Candidate by D50, SBT off position ( internal report, GRB210410A: Candidate optical afterglow by Ondrejov D50, GRB210410A: Joint inspection of RATIR and D50 data )

1034721 2021-02-26 04:43:57.230 08:16:27.456 +057:35:01.68 1.8 SBT 59196 GRB 210226A 10m 57.588s 27.209s Swift GRB 30 30 C1 ok, C2 defocused, GRB 210226A: Ondrejov BART/SBT optical limit

2020

985320 2020-08-01 20:11:47.410 18:46:31.224 -002:59:25.08 180 SBT 58889 ~~GRB 200801C~~ 35.682s 21.289s AX J1846.4-0258 608 1

985320 2020-08-01 20:11:47.410 18:46:31.224 -002:59:25.08 180 D50 52103 ~~GRB 200801C~~ 27.709s 13.304s AX J1846.4-0258 487 2

984929 2020-07-29 19:38:05.090 12:17:30.600 +045:35:37.68 3.24 SBT 58884 GRB 200729A 1m 32.822s 32.101s A GRB projected on a nearby galaxy 502 10

984929 2020-07-29 19:38:05.090 12:17:30.600 +045:35:37.68 3.24 D50 52102 GRB 200729A 15m 12.185s 14m 11.452s A GRB projected on a nearby galaxy 226 19 no detection

20981 2020-04-12 14:43:14.000 18:30:55.674 +062:13:38.87 24950 SBT 58726 GRB 200412B 4:48:09.130 22.798s XRT 69 104

965638 2020-04-10 02:25:10.420 19:58:34.872 +051:46:51.96 2.16 SBT 58720 GRB 200410A 56.589s 21.600s 403 12

965638 2020-04-10 02:25:10.420 19:58:34.872 +051:46:51.96 2.16 D50 52066 GRB 200410A 54.964s 19.965s 425 3 GRB 200410A: Ondrejov D50 afterglow confirmation

606263732 2020-03-18 22:35:27.220 08:18:09.600 +056:24:36.00 3600 SBT 58692 GRB 200318A 1m 2.839s 38.225s 788 0

953689 2020-01-31 22:41:16.990 00:12:22.560 +051:07:00.12 0.36 SBT 58628 GRB 200131A 55.421s 35.788s 129 0 ~7 photometric points @7sigma

2019

929744 2019-10-16 04:09:01.910 02:01:10.944 +024:30:03.24 180 D50 52012 GRB 191016A 13:46:05.930 13:40:10.069 2h Swift GRB with an optical afterglow 64 0 I>20.3 (combined dithered image 60x120s) GRB 191016A: Optical limit by Ondrejov D50

922808 2019-08-28 12:59:59.420 16:47:19.49 -027:16:51.2 1.4 D50 52008 GRB 190828B 7:48:26.589 7:48:05.199 66min GBM+BAT, no afterglow seen 185 0 grb190818B-d50-185x20s-N.png

911609 2019-06-27 11:18:31.120 16:19:19.248 -005:17:31.56 180 D50 51993 GRB 190627A 9:23:54.407 9:23:09.825 29.2h 960 59 GRB 190627A: Optical imaging by D50 from Ondrejov

911102 2019-06-24 20:40:41.860 09:38:05.736 +046:28:33.60 180 D50 51992 - 2m60ms 11.420s 12min 39 9 Swift trigger 911102: D50 optical limit

91xx02 2019-05-30 10:19:08 08:02:07.730 +35:28:47.70 D50 5009 GRB 190530A 10.3h 21min Fermi GRB 39 9 dTmid=10.452h Texp=1017s mag=17.468+/-0.022

887579 2019-02-04 05:46:01.740 23:25:54.480 +054:52:35.04 1.08 D50 51950 GRB 190204A 11:49:20.402 11:49:05.504 2.2h 365 0 OT position too close to a bright star

883818 2019-01-14 19:31:12.080 11:39:29.616 +018:53:32.28 3.6 D50 51926 GRB 190114B 2:30:37.201 2:29:19.450 4.2h 701 6 dTmid=2.715h Texp=1256s mag=20.852+/-0.162

852903 2018-08-12 08:22:30.230 16:23:20.640 +074:39:52.56 2.52 D50 51868 GRB 180812A 11:47:09.430 11:46:35.981 289 0 R>22.5 (from unfiltered image 289x20s)

848890 2018-07-20 14:21:45.590 00:02:06.696 -002:55:01.20 4.68 D50 51858 GRB 180720B 9:39:01.880 9:38:48.320 643 2 GRB 180720B: D50 optical observations

848048 2018-07-15 18:07:05.000 15:40:16.512 -000:55:28.56 180 D50 51852 GRB 180715A 2:23:39.282 2:23:19.285 93 91

8104 2018-07-14 13:01:32.800 16:11:40.548 +033:16:51.71 150.001 D50 51851 GRB 180714A 7:27:49.364 7:27:46.208 408 3

826428 2018-04-18 06:44:06.070 11:20:28.944 +024:55:57.00 3.96 D50 51821 GRB 180418A 13:04:15.000 13:03:58.761 1h Short GRB with an optical afterglow 169 0 R>22.8 (from unfiltered image 169x20s)

8041 2018-04-14 23:53:31.660 18:20:21.151 +007:04:45.03 151.999 D50 51820 - 29.954s 13.200s 274 1

817564 2018-03-25 01:53:03.840 10:29:42.576 +024:27:48.24 0.72 D50 51807 GRB 180325A 43.239s 29.506s 766 0 GRB 180325A: D50 early optical follow-up

775553 2017-10-01 18:25:40.220 01:28:18.576 -011:53:38.40 2.16 D50 51739 GRB 171001A 2:51:38.243 2:49:56.265 99 12 GRB171001A: D50 optical limit

756953 2017-06-12 20:55:09.790 17:30:55.512 -005:58:42.96 239.76 D50 51701 1m 42.359s 27.545s IGR17303-0601 333 0

755873 2017-06-04 21:30:53.510 13:23:13.968 +064:11:52.44 180 D50 51699 - 1m 7.674s 19.534s SAA exit -> questionable detection 184 0 Swift Trigger 755873: D50 optical limits

754322 2017-05-24 19:49:15.280 21:17:56.832 +048:36:23.04 3.96 D50 51692 GRB 170524A 4:03:34.072 4:03:22.102 47 1 GRB 170524A: D50 optical observation and limit

715084 2016-10-04 12:58:29.670 17:32:36.576 -000:57:02.16 1.08 D50 51591 GRB 161004A 4:30:56.486 4:30:35.887 207 0

713782 2016-09-27 18:04:50.890 17:04:58.296 +017:19:53.04 2.16 D50 51590 GRB 160927A 39.037s 16.055s 375 0 GRB160927A: D50 optical limit

711914 2016-09-12 16:07:43.140 20:06:00.000 +057:33:56.16 1.8 D50 51588 GRB 160912A 2:01:09.331 1:46:10.690 409 0

709765 2016-08-24 23:22:25.350 05:20:21.024 +040:01:42.60 1.8 D50 51581 GRB 160824A 1:08:38.202 1:08:02.794 312 0

7534 2016-08-19 01:30:13.300 05:34:28.052 +022:29:56.07 158 D50 51578 - 14.981s 8.534s 182 0

709765 2016-06-25 22:43:24 20:34:23.25 +06:55:10.5 D50 3.8 GRB 160625B bbb.pdf I = 19.68 +/- 0.13

709765 2016-06-23 D50 GRB 160623A bbb.pdf R = 19.44 +/- 0.12

687123 2016-05-21 20:01:47.210 19:35:00.000 +021:54:38.52 180 D50 51540 - 24m 8.148s 23m 51.883s SGR 1935+2154 380 0

7437 2016-04-01 20:20:43.710 05:58:57.010 +026:40:32.83 119.999 D50 51525 GRB 160401A 24.083s 20.104s 98 1

671231 2016-01-21 13:50:38.710 07:16:21.384 -023:35:30.48 2.16 D50 51505 GRB 160121A 8:39:16.248 8:38:28.970 1 1

661869 2015-10-27 22:40:41.660 05:04:52.512 -006:26:58.56 6.12 D50 51475 GRB 151027B 27m 16.180s 25m 3.746s 1 0 bbb.pdf R = 18.50 +/- 0.12

657321 2015-10-01 18:29:37.780 22:27:21.192 +064:41:37.32 2.16 D50 51466 GRB 151001B 1m 47.372s 30.062s 1 0

657286 2015-10-01 15:04:23.930 15:34:54.888 +010:58:01.92 0.36 D50 51465 GRB 151001A 2:42:34.282 2:42:08.874 1 0

649113 2015-07-15 18:12:38.940 18:41:19.296 -004:55:47.64 180 D50 51436 - 2:22:24.385 2:21:56.348 Kes_73 1 0

7163 2015-06-28 23:08:55.420 20:24:00.385 +033:53:17.94 191.002 D50 51429 - 21.068s 16.191s V404 Cyg 1 0

7132 2015-06-25 00:54:44.110 20:23:56.929 +033:52:45.01 190.001 D50 51406 - 18.187s 12.935s V404 Cyg 1 0

7131 2015-06-25 00:19:59.120 20:23:58.787 +033:50:54.46 191.002 D50 51405 - 18.597s 13.671s V404 Cyg 1 0

7127 2015-06-24 21:50:20.150 20:24:08.635 +033:52:51.28 195.001 D50 51403 - 11m 11.409s 11m 5.982s V404 Cyg 1 0

7126 2015-06-24 20:47:32.160 20:24:17.382 +033:51:39.48 175 D50 51402 - 11m 9.674s 11m 3.973s V404 Cyg 1 0

637899 2015-04-13 13:54:59.550 12:41:32.400 +071:49:25.68 180 D50 51287 GRB 150413A 8:09:35.046 8:08:17.983 1 0

631051 2015-02-13 22:31:31.810 16:53:48.648 +034:11:19.32 0.36 D50 51262 GRB 150213B 2:21:01.943 2:19:47.234 1 0

629693 2015-02-04 00:12:43.860 13:51:13.368 -008:41:08.88 180 D50 51254 - 26m 54.769s 25m 37.865s noise event 1 0

622476 2014-12-25 23:01:07.030 09:15:06.744 +033:47:30.48 1.8 D50 51238 GRB 141225A 38m 35.486s 37m 1.856s 1 0 bbb.pdf peak R = 20.37 +/- 0.13

612974 2014-09-17 13:30:35.460 17:06:35.016 +023:58:15.96 5.04 D50 51207 - 4:52:20.032 4:36:35.431 4U 1700+24 1 0

611599 2014-09-03 15:01:29.000 15:52:03.816 +027:36:11.88 9.72 D50 51204 GRB 140903A 3:48:02.184 40m 51.552s ..."possible burst" 1 0

609885 2014-08-18 18:44:17.510 18:04:32.496 -001:23:10.68 2.52 D50 51200 GRB 140818B 2:04:00.1340.134s 2:03:23.750 1 0

597722 2014-04-30 20:33:37.520 06:51:44.592 +023:01:24.96 0.36 D50 51154 GRB 140430A 37m 56.303s 37m 42.944s 1 0

596958 2014-04-23 21:07:08.070 13:31:46.464 +029:16:34.68 4.68 D50 51145 - 3m 3.166s 1m 45.483s DG CVn 1 0

583338 2014-01-08 17:18:43.520 21:40:27.168 +058:44:38.76 2.52 D50 51045 GRB 140108A 46.389s 32.079s 1 0 GRB 140108A: D50+BART optical candidate detection

576238 2013-10-30 20:56:19.800 23:00:16.128 -005:22:04.80 0.72 D50 51018 GRB 131030A 56.594s 42.707s 1 0 GRB 131030A: D50+BART detection and light curve ...

518792 2012-03-28 03:06:19.030 16:06:27.048 -039:20:06.36 5.04 D50 50835 GRB 120328A 3m 54.229s 4.362s 1 0

518731 2012-03-27 02:55:17.630 16:27:27.456 -029:24:53.64 0.36 D50 50834 GRB 120327A 10m 53.916s 0.450s 1 0

518626 2012-03-26 01:20:29.280 18:15:36.528 +069:15:33.48 5.04 D50 50833 GRB 120326A 48.548s 28.054s 1 0 bbb.pdf peak R = 19.13 +/- 0.08

516997 2012-03-05 19:37:30.950 03:10:08.808 +028:29:29.04 2.52 D50 50825 GRB 120305A 59.925s 37.991s 1 0 GRB 120305A: D50 optical limits

6461 2012-02-02 21:40:17 13:34:00.86 +22:46:25.94 4.8 D50 5000 GRB 120202A 125min - 6h Integral + Swift/XRT 646 4 GRB 120202A: D50 optical limits

506074 2011-10-22 17:13:05.500 07:15:51.504 +049:41:00.60 2.16 D50 50791 GRB 111022B 9m 21.651s 2.630s 1 0 GRB111022B: D50 optical limit

506070 2011-10-22 16:07:05.950 18:23:27.648 -023:40:23.88 3.6 D50 50790 GRB 111022A 20.188s 2.889s 1 0

505646 2011-10-16 18:37:05.520 10:15:20.016 +027:27:48.24 5.76 D50 50787 GRB 111016A 3m 57.066s 49.522s 1 0 GRB111016A: D50 optical limit

504307 2011-09-28 19:17:21.580 18:35:43.248 -019:19:16.68 5.4 D50 50783 - 19m 35.778s 1m 41.935s MAXI J1836-194 1 0

504215 2011-09-28 01:51:32.780 17:10:56.064 +036:32:10.68 3.96 D50 50782 GRB 110928A 1m 2.969s 0.514s 1 0

503219 2011-09-15 13:20:44.400 20:43:17.808 -000:43:23.16 4.68 D50 50775 GRB 110915A 5:27:22.033 5:27:05.643 1 0

6335 2011-09-03 02:39:55.120 13:08:14.700 +058:59:06.35 119.999 D50 50770 GRB 110903A 1m 25.818s 1.330s 1 0

501520 2011-08-27 00:01:53.500 10:56:22.776 +053:47:13.20 180 D50 50767 GRB 110827A 46.754s 4.305s 1 0

454473 2011-05-30 15:31:03.680 18:48:16.344 +061:55:45.12 0.36 D50 50735 GRB 110530A 6:22:54.736 6:21:58.269 1 0

453628 2011-05-19 02:12:17.710 17:26:30.936 -023:24:29.88 180 D50 50731 GRB 110519A 1m 58.413s 1m 22.689s 1 0

446674 2011-02-23 20:56:59.220 23:03:25.800 +087:33:25.56 2.16 D50 50705 GRB 110223A 2m 23.215s 3.273s 1 0

435903 2010-10-08 16:43:15.210 21:55:29.880 +037:03:57.60 3.6 D50 50678 GRB 101008A 26.228s 3.793s 1 0

434843 2010-09-24 03:58:09.890 00:02:41.112 +007:00:54.00 180 D50 50674 GRB 100924A 9m 56.541s 2m 18.976s 1 0

433160 2010-09-02 19:31:54.860 01:54:44.110 +055:37:49.60 - D50 50669 GRB 100906A 7.5h 6.12h 626 4 GRB 100906A: D50 optical detection

433160 2010-09-02 19:31:54.860 03:14:31.032 +030:58:44.40 2.16 D50 50658 GRB 100902A 2:28:37.948 2:27:20.970 1 0 GRB 100902A: D50 optical limit

424040 2010-06-06 21:58:36.110 11:53:00.360 +022:19:56.28 180 D50 50513 - 5m 41.749s 5m 16.476s IMAGE_SIGNIF < 7 sigma, this is a questionable detection 1 0

420398 2010-04-25 02:50:45.070 19:56:47.160 -026:25:48.36 2.88 D50 50489 GRB 100425A 48.401s 3.936s 1 0

420367 2010-04-24 16:32:42.260 13:57:47.472 +001:32:18.24 2.16 D50 50486 GRB 100424A 6:54:20.401 6:53:04.352 1 0 GRB 100424A: D50 optical limits

420256 2010-04-23 02:44:02.260 18:07:21.936 +027:10:18.48 180 D50 50484 - 3m22ms 1m 34.235s "we believe this trigger is not astrophysical" 1 0 Swift Trigger 420256: D50 optical limits

420247 2010-04-23 00:34:59.160 09:05:54.480 +021:28:45.84 180 D50 50483 GRB 100423A 45.513s 21.771s 1 0

361477 2009-08-31 18:01:15.950 00:14:28.632 +027:58:11.64 180 D50 50230 GRB 090831B 50m 34.426s 49m 18.037s ... called GRB090831B, is probably not real. 1 0

361218 2009-08-29 19:12:00.330 20:05:00.000 +045:58:17.40 240.001 D50 50228 - 3m 13.075s 2m 6.004s IMAGE_SIGNIF is VERY LOW, this is very likely not real 1 0

5908 2009-08-17 00:51:27.880 04:15:51.775 +044:07:23.71 153 D50 50222 GRB 090817 39.670s 21.010s 1 0

359530 2009-08-09 17:31:15.500 21:54:42.696 -000:05:01.32 3.24 D50 50216 GRB 090809 59m 36.657s 58m 57.271s 1 0

358520 2009-07-27 22:42:18.020 21:03:50.712 +064:55:27.48 3.96 D50 50212 GRB 090727 39.679s 5.659s 1 0

358422 2009-07-26 22:42:28.750 16:34:43.044 +072:53:04.81 5.04 D50 50211 GRB 090726 1m 47.711s 43.514s 1 0 GRB 090726: D50 optical observations
Simon et al. A&A 510,49 (2010)

357512 2009-07-15 21:03:15.630 16:45:21.720 +044:50:15.72 4.68 D50 50206 GRB 090715B 49m 37.117s 41m 52.876s 1 0 bbb.pdf R = 19.92 +/- 0.17

357498 2009-07-15 17:25:39.150 10:08:29.256 +009:59:50.64 180 D50 50205 GRB 090715A 4:56:30.187 4:56:09.719 1 0

341114 2009-01-25 21:52:13.150 15:50:54.912 -054:18:10.08 180 D50 50154 - 3m 48.464s 3m 34.581s AXP 1E1547.0-5408 1 0

339852 2009-01-13 18:40:39.170 02:08:39.168 +033:27:12.96 5.76 D50 50137 GRB 090113 9m 4.470s 46.357s 1 0

338633 2008-12-30 20:36:13.620 02:29:19.560 -025:08:47.76 4.68 D50 50128 GRB 081230 13m 15.254s 1m 42.065s 1 0

333427 2008-11-02 17:44:40.520 22:04:41.640 +052:59:36.24 3.24 D50 50105 GRB 081102 12m 4.144s 9.568s 1 0

324122 2008-09-08 08:49:49.910 18:42:21.192 -011:29:38.04 180 D50 50062 - 10:47:59.792 10:24:30.027 Swift J1842.5-1124 1 0

323542 2008-09-03 01:12:23.300 05:47:10.176 +051:15:52.20 2.52 D50 50055 GRB 080903 49.618s 30.871s 1 0 bbb.pdf R = 19.72 +/- 0.22

323192 2008-09-01 01:22:48.450 05:01:04.248 +045:18:35.64 180 D50 50054 - 2m 5.710s 1m 52.970s 1 0

319584 2008-08-10 13:10:12.280 23:47:10.488 +000:19:09.84 0.72 D50 50038 GRB 080810 9:14:00.9900.990s 9:13:45.462 1 0 GRB 080810: D50 optical observation

318170 2008-07-27 23:07:35.390 02:10:32.112 +064:08:15.72 2.52 D50 50036 - 31.227s 5.631s 1 0

20073 2008-06-02 21:44:07.000 00:17:40.776 +048:34:12.00 240.001 D50 50004 - 2:30:11.640 - 1 0

310613 2008-04-30 19:53:02 11:01:14.7 +51:41:08.6 1 D50 1064 GRB 080430 45min - 2.9h Afterglow detection at D50 371 0 GRB080430: Optical observation (...)

**D50 GRB TRIGGERED OBSERVATION**
GRB/TRIGGER	OBSERVATION
Trig	Date******	Time UT	RA	Dec	Error	Tel.	ID	GRB	Tobs-T0	Tobs-Ttrig	Tspent	GRB status	good	bad	Obs. status
2021
1081073	2021-10-24	22:20:36	10:18:51.12	+24:34:05.16	52274	D50		GRB 211024B	3.16h	-	3.2h	Swift GRB	175	-	GRB 211024B: Optical afterglow observation by Ondrejov D50
656687148	2021-10-23	13:05:43	4:52:37.070	+85:19:25.20	-	SBT	5003	GRB 211023A	1.5706d	-	3h	Fermi/GBM,LAT + AGILE	162	-	GRB 211023A: optical detection by SBT in Ondrejov, img
646388180	2021-06-26	08:16:15	14:46:05.83	-01:09:22.5	5.7	D50	5015	GRB 210626A	0.5626d	-	2h	Fermi/GBM,LAT + Swft/XRT	60	-	A faint candidate GRB 210626A: Ondrejov D50 optical limit
1044382	2021-04-20	04:43:57.230	16:57:18.000	+42:34:12.100	0.3	D50	5014	GRB 210420B	2.59h	2.59h		Swft/XRT/UVOT	48	?	Observed by many, manual target, r' = 18.6 at start (gcn circular,img)
639708801	2021-04-10	04:43:57.230	00:53:17.520	+45:21:45.368	2.0	SBT D50	59196 5013	GRB 210410A	1m 4.072ss 56min	40.207ss 56min		Fermi/GBM,LAT + Swft/XRT	30 45	30 45	Candidate by D50, SBT off position ( internal report, GRB210410A: Candidate optical afterglow by Ondrejov D50, GRB210410A: Joint inspection of RATIR and D50 data )
1034721	2021-02-26	04:43:57.230	08:16:27.456	+057:35:01.68	1.8	SBT	59196	GRB 210226A	10m 57.588s	27.209s		Swift GRB	30	30	C1 ok, C2 defocused, GRB 210226A: Ondrejov BART/SBT optical limit
2020
985320	2020-08-01	20:11:47.410	18:46:31.224	-002:59:25.08	180	SBT	58889	~~GRB 200801C~~	35.682s	21.289s		AX J1846.4-0258	608	1
985320	2020-08-01	20:11:47.410	18:46:31.224	-002:59:25.08	180	D50	52103	~~GRB 200801C~~	27.709s	13.304s		AX J1846.4-0258	487	2
984929	2020-07-29	19:38:05.090	12:17:30.600	+045:35:37.68	3.24	SBT	58884	GRB 200729A	1m 32.822s	32.101s		A GRB projected on a nearby galaxy	502	10
984929	2020-07-29	19:38:05.090	12:17:30.600	+045:35:37.68	3.24	D50	52102	GRB 200729A	15m 12.185s	14m 11.452s		A GRB projected on a nearby galaxy	226	19	no detection
20981	2020-04-12	14:43:14.000	18:30:55.674	+062:13:38.87	24950	SBT	58726	GRB 200412B	4:48:09.130	22.798s		XRT	69	104
965638	2020-04-10	02:25:10.420	19:58:34.872	+051:46:51.96	2.16	SBT	58720	GRB 200410A	56.589s	21.600s			403	12
965638	2020-04-10	02:25:10.420	19:58:34.872	+051:46:51.96	2.16	D50	52066	GRB 200410A	54.964s	19.965s			425	3	GRB 200410A: Ondrejov D50 afterglow confirmation
606263732	2020-03-18	22:35:27.220	08:18:09.600	+056:24:36.00	3600	SBT	58692	GRB 200318A	1m 2.839s	38.225s			788	0
953689	2020-01-31	22:41:16.990	00:12:22.560	+051:07:00.12	0.36	SBT	58628	GRB 200131A	55.421s	35.788s			129	0	~7 photometric points @7sigma
2019
929744	2019-10-16	04:09:01.910	02:01:10.944	+024:30:03.24	180	D50	52012	GRB 191016A	13:46:05.930	13:40:10.069	2h	Swift GRB with an optical afterglow	64	0	I>20.3 (combined dithered image 60x120s) GRB 191016A: Optical limit by Ondrejov D50
922808	2019-08-28	12:59:59.420	16:47:19.49	-027:16:51.2	1.4	D50	52008	GRB 190828B	7:48:26.589	7:48:05.199	66min	GBM+BAT, no afterglow seen	185	0	grb190818B-d50-185x20s-N.png
911609	2019-06-27	11:18:31.120	16:19:19.248	-005:17:31.56	180	D50	51993	GRB 190627A	9:23:54.407	9:23:09.825	29.2h		960	59	GRB 190627A: Optical imaging by D50 from Ondrejov
911102	2019-06-24	20:40:41.860	09:38:05.736	+046:28:33.60	180	D50	51992	-	2m60ms	11.420s	12min		39	9	Swift trigger 911102: D50 optical limit
91xx02	2019-05-30	10:19:08	08:02:07.730	+35:28:47.70		D50	5009	GRB 190530A	10.3h		21min	Fermi GRB	39	9	dTmid=10.452h Texp=1017s mag=17.468+/-0.022
887579	2019-02-04	05:46:01.740	23:25:54.480	+054:52:35.04	1.08	D50	51950	GRB 190204A	11:49:20.402	11:49:05.504	2.2h		365	0	OT position too close to a bright star
883818	2019-01-14	19:31:12.080	11:39:29.616	+018:53:32.28	3.6	D50	51926	GRB 190114B	2:30:37.201	2:29:19.450	4.2h		701	6	dTmid=2.715h Texp=1256s mag=20.852+/-0.162
852903	2018-08-12	08:22:30.230	16:23:20.640	+074:39:52.56	2.52	D50	51868	GRB 180812A	11:47:09.430	11:46:35.981			289	0	R>22.5 (from unfiltered image 289x20s)
848890	2018-07-20	14:21:45.590	00:02:06.696	-002:55:01.20	4.68	D50	51858	GRB 180720B	9:39:01.880	9:38:48.320			643	2	GRB 180720B: D50 optical observations
848048	2018-07-15	18:07:05.000	15:40:16.512	-000:55:28.56	180	D50	51852	GRB 180715A	2:23:39.282	2:23:19.285			93	91
8104	2018-07-14	13:01:32.800	16:11:40.548	+033:16:51.71	150.001	D50	51851	GRB 180714A	7:27:49.364	7:27:46.208			408	3
826428	2018-04-18	06:44:06.070	11:20:28.944	+024:55:57.00	3.96	D50	51821	GRB 180418A	13:04:15.000	13:03:58.761	1h	Short GRB with an optical afterglow	169	0	R>22.8 (from unfiltered image 169x20s)
8041	2018-04-14	23:53:31.660	18:20:21.151	+007:04:45.03	151.999	D50	51820	-	29.954s	13.200s			274	1
817564	2018-03-25	01:53:03.840	10:29:42.576	+024:27:48.24	0.72	D50	51807	GRB 180325A	43.239s	29.506s			766	0	GRB 180325A: D50 early optical follow-up
775553	2017-10-01	18:25:40.220	01:28:18.576	-011:53:38.40	2.16	D50	51739	GRB 171001A	2:51:38.243	2:49:56.265			99	12	GRB171001A: D50 optical limit
756953	2017-06-12	20:55:09.790	17:30:55.512	-005:58:42.96	239.76	D50	51701		1m 42.359s	27.545s		IGR17303-0601	333	0
755873	2017-06-04	21:30:53.510	13:23:13.968	+064:11:52.44	180	D50	51699	-	1m 7.674s	19.534s		SAA exit -> questionable detection	184	0	Swift Trigger 755873: D50 optical limits
754322	2017-05-24	19:49:15.280	21:17:56.832	+048:36:23.04	3.96	D50	51692	GRB 170524A	4:03:34.072	4:03:22.102			47	1	GRB 170524A: D50 optical observation and limit
715084	2016-10-04	12:58:29.670	17:32:36.576	-000:57:02.16	1.08	D50	51591	GRB 161004A	4:30:56.486	4:30:35.887			207	0
713782	2016-09-27	18:04:50.890	17:04:58.296	+017:19:53.04	2.16	D50	51590	GRB 160927A	39.037s	16.055s			375	0	GRB160927A: D50 optical limit
711914	2016-09-12	16:07:43.140	20:06:00.000	+057:33:56.16	1.8	D50	51588	GRB 160912A	2:01:09.331	1:46:10.690			409	0
709765	2016-08-24	23:22:25.350	05:20:21.024	+040:01:42.60	1.8	D50	51581	GRB 160824A	1:08:38.202	1:08:02.794			312	0
7534	2016-08-19	01:30:13.300	05:34:28.052	+022:29:56.07	158	D50	51578	-	14.981s	8.534s			182	0
709765	2016-06-25		22:43:24	20:34:23.25	+06:55:10.5	D50	3.8	GRB 160625B							bbb.pdf I = 19.68 +/- 0.13
709765	2016-06-23					D50		GRB 160623A							bbb.pdf R = 19.44 +/- 0.12
687123	2016-05-21	20:01:47.210	19:35:00.000	+021:54:38.52	180	D50	51540	-	24m 8.148s	23m 51.883s		SGR 1935+2154	380	0
7437	2016-04-01	20:20:43.710	05:58:57.010	+026:40:32.83	119.999	D50	51525	GRB 160401A	24.083s	20.104s			98	1
671231	2016-01-21	13:50:38.710	07:16:21.384	-023:35:30.48	2.16	D50	51505	GRB 160121A	8:39:16.248	8:38:28.970			1	1
661869	2015-10-27	22:40:41.660	05:04:52.512	-006:26:58.56	6.12	D50	51475	GRB 151027B	27m 16.180s	25m 3.746s			1	0	bbb.pdf R = 18.50 +/- 0.12
657321	2015-10-01	18:29:37.780	22:27:21.192	+064:41:37.32	2.16	D50	51466	GRB 151001B	1m 47.372s	30.062s			1	0
657286	2015-10-01	15:04:23.930	15:34:54.888	+010:58:01.92	0.36	D50	51465	GRB 151001A	2:42:34.282	2:42:08.874			1	0
649113	2015-07-15	18:12:38.940	18:41:19.296	-004:55:47.64	180	D50	51436	-	2:22:24.385	2:21:56.348		Kes_73	1	0
7163	2015-06-28	23:08:55.420	20:24:00.385	+033:53:17.94	191.002	D50	51429	-	21.068s	16.191s		V404 Cyg	1	0
7132	2015-06-25	00:54:44.110	20:23:56.929	+033:52:45.01	190.001	D50	51406	-	18.187s	12.935s		V404 Cyg	1	0
7131	2015-06-25	00:19:59.120	20:23:58.787	+033:50:54.46	191.002	D50	51405	-	18.597s	13.671s		V404 Cyg	1	0
7127	2015-06-24	21:50:20.150	20:24:08.635	+033:52:51.28	195.001	D50	51403	-	11m 11.409s	11m 5.982s		V404 Cyg	1	0
7126	2015-06-24	20:47:32.160	20:24:17.382	+033:51:39.48	175	D50	51402	-	11m 9.674s	11m 3.973s		V404 Cyg	1	0
637899	2015-04-13	13:54:59.550	12:41:32.400	+071:49:25.68	180	D50	51287	GRB 150413A	8:09:35.046	8:08:17.983			1	0
631051	2015-02-13	22:31:31.810	16:53:48.648	+034:11:19.32	0.36	D50	51262	GRB 150213B	2:21:01.943	2:19:47.234			1	0
629693	2015-02-04	00:12:43.860	13:51:13.368	-008:41:08.88	180	D50	51254	-	26m 54.769s	25m 37.865s		noise event	1	0
622476	2014-12-25	23:01:07.030	09:15:06.744	+033:47:30.48	1.8	D50	51238	GRB 141225A	38m 35.486s	37m 1.856s			1	0	bbb.pdf peak R = 20.37 +/- 0.13
612974	2014-09-17	13:30:35.460	17:06:35.016	+023:58:15.96	5.04	D50	51207	-	4:52:20.032	4:36:35.431		4U 1700+24	1	0
611599	2014-09-03	15:01:29.000	15:52:03.816	+027:36:11.88	9.72	D50	51204	GRB 140903A	3:48:02.184	40m 51.552s		..."possible burst"	1	0
609885	2014-08-18	18:44:17.510	18:04:32.496	-001:23:10.68	2.52	D50	51200	GRB 140818B	2:04:00.1340.134s	2:03:23.750			1	0
597722	2014-04-30	20:33:37.520	06:51:44.592	+023:01:24.96	0.36	D50	51154	GRB 140430A	37m 56.303s	37m 42.944s			1	0
596958	2014-04-23	21:07:08.070	13:31:46.464	+029:16:34.68	4.68	D50	51145	-	3m 3.166s	1m 45.483s		DG CVn	1	0
583338	2014-01-08	17:18:43.520	21:40:27.168	+058:44:38.76	2.52	D50	51045	GRB 140108A	46.389s	32.079s			1	0	GRB 140108A: D50+BART optical candidate detection
576238	2013-10-30	20:56:19.800	23:00:16.128	-005:22:04.80	0.72	D50	51018	GRB 131030A	56.594s	42.707s			1	0	GRB 131030A: D50+BART detection and light curve ...
518792	2012-03-28	03:06:19.030	16:06:27.048	-039:20:06.36	5.04	D50	50835	GRB 120328A	3m 54.229s	4.362s			1	0
518731	2012-03-27	02:55:17.630	16:27:27.456	-029:24:53.64	0.36	D50	50834	GRB 120327A	10m 53.916s	0.450s			1	0
518626	2012-03-26	01:20:29.280	18:15:36.528	+069:15:33.48	5.04	D50	50833	GRB 120326A	48.548s	28.054s			1	0	bbb.pdf peak R = 19.13 +/- 0.08
516997	2012-03-05	19:37:30.950	03:10:08.808	+028:29:29.04	2.52	D50	50825	GRB 120305A	59.925s	37.991s			1	0	GRB 120305A: D50 optical limits
6461	2012-02-02	21:40:17	13:34:00.86	+22:46:25.94	4.8	D50	5000	GRB 120202A	125min	-	6h	Integral + Swift/XRT	646	4	GRB 120202A: D50 optical limits
506074	2011-10-22	17:13:05.500	07:15:51.504	+049:41:00.60	2.16	D50	50791	GRB 111022B	9m 21.651s	2.630s			1	0	GRB111022B: D50 optical limit
506070	2011-10-22	16:07:05.950	18:23:27.648	-023:40:23.88	3.6	D50	50790	GRB 111022A	20.188s	2.889s			1	0
505646	2011-10-16	18:37:05.520	10:15:20.016	+027:27:48.24	5.76	D50	50787	GRB 111016A	3m 57.066s	49.522s			1	0	GRB111016A: D50 optical limit
504307	2011-09-28	19:17:21.580	18:35:43.248	-019:19:16.68	5.4	D50	50783	-	19m 35.778s	1m 41.935s		MAXI J1836-194	1	0
504215	2011-09-28	01:51:32.780	17:10:56.064	+036:32:10.68	3.96	D50	50782	GRB 110928A	1m 2.969s	0.514s			1	0
503219	2011-09-15	13:20:44.400	20:43:17.808	-000:43:23.16	4.68	D50	50775	GRB 110915A	5:27:22.033	5:27:05.643			1	0
6335	2011-09-03	02:39:55.120	13:08:14.700	+058:59:06.35	119.999	D50	50770	GRB 110903A	1m 25.818s	1.330s			1	0
501520	2011-08-27	00:01:53.500	10:56:22.776	+053:47:13.20	180	D50	50767	GRB 110827A	46.754s	4.305s			1	0
454473	2011-05-30	15:31:03.680	18:48:16.344	+061:55:45.12	0.36	D50	50735	GRB 110530A	6:22:54.736	6:21:58.269			1	0
453628	2011-05-19	02:12:17.710	17:26:30.936	-023:24:29.88	180	D50	50731	GRB 110519A	1m 58.413s	1m 22.689s			1	0
446674	2011-02-23	20:56:59.220	23:03:25.800	+087:33:25.56	2.16	D50	50705	GRB 110223A	2m 23.215s	3.273s			1	0
435903	2010-10-08	16:43:15.210	21:55:29.880	+037:03:57.60	3.6	D50	50678	GRB 101008A	26.228s	3.793s			1	0
434843	2010-09-24	03:58:09.890	00:02:41.112	+007:00:54.00	180	D50	50674	GRB 100924A	9m 56.541s	2m 18.976s			1	0
433160	2010-09-02	19:31:54.860	01:54:44.110	+055:37:49.60	-	D50	50669	GRB 100906A	7.5h		6.12h		626	4	GRB 100906A: D50 optical detection
433160	2010-09-02	19:31:54.860	03:14:31.032	+030:58:44.40	2.16	D50	50658	GRB 100902A	2:28:37.948	2:27:20.970			1	0	GRB 100902A: D50 optical limit
424040	2010-06-06	21:58:36.110	11:53:00.360	+022:19:56.28	180	D50	50513	-	5m 41.749s	5m 16.476s		IMAGE_SIGNIF < 7 sigma, this is a questionable detection	1	0
420398	2010-04-25	02:50:45.070	19:56:47.160	-026:25:48.36	2.88	D50	50489	GRB 100425A	48.401s	3.936s			1	0
420367	2010-04-24	16:32:42.260	13:57:47.472	+001:32:18.24	2.16	D50	50486	GRB 100424A	6:54:20.401	6:53:04.352			1	0	GRB 100424A: D50 optical limits
420256	2010-04-23	02:44:02.260	18:07:21.936	+027:10:18.48	180	D50	50484	-	3m22ms	1m 34.235s		"we believe this trigger is not astrophysical"	1	0	Swift Trigger 420256: D50 optical limits
420247	2010-04-23	00:34:59.160	09:05:54.480	+021:28:45.84	180	D50	50483	GRB 100423A	45.513s	21.771s			1	0
361477	2009-08-31	18:01:15.950	00:14:28.632	+027:58:11.64	180	D50	50230	GRB 090831B	50m 34.426s	49m 18.037s		... called GRB090831B, is probably not real.	1	0
361218	2009-08-29	19:12:00.330	20:05:00.000	+045:58:17.40	240.001	D50	50228	-	3m 13.075s	2m 6.004s		IMAGE_SIGNIF is VERY LOW, this is very likely not real	1	0
5908	2009-08-17	00:51:27.880	04:15:51.775	+044:07:23.71	153	D50	50222	GRB 090817	39.670s	21.010s			1	0
359530	2009-08-09	17:31:15.500	21:54:42.696	-000:05:01.32	3.24	D50	50216	GRB 090809	59m 36.657s	58m 57.271s			1	0
358520	2009-07-27	22:42:18.020	21:03:50.712	+064:55:27.48	3.96	D50	50212	GRB 090727	39.679s	5.659s			1	0
358422	2009-07-26	22:42:28.750	16:34:43.044	+072:53:04.81	5.04	D50	50211	GRB 090726	1m 47.711s	43.514s			1	0	GRB 090726: D50 optical observations Simon et al. A&A 510,49 (2010)
357512	2009-07-15	21:03:15.630	16:45:21.720	+044:50:15.72	4.68	D50	50206	GRB 090715B	49m 37.117s	41m 52.876s			1	0	bbb.pdf R = 19.92 +/- 0.17
357498	2009-07-15	17:25:39.150	10:08:29.256	+009:59:50.64	180	D50	50205	GRB 090715A	4:56:30.187	4:56:09.719			1	0
341114	2009-01-25	21:52:13.150	15:50:54.912	-054:18:10.08	180	D50	50154	-	3m 48.464s	3m 34.581s		AXP 1E1547.0-5408	1	0
339852	2009-01-13	18:40:39.170	02:08:39.168	+033:27:12.96	5.76	D50	50137	GRB 090113	9m 4.470s	46.357s			1	0
338633	2008-12-30	20:36:13.620	02:29:19.560	-025:08:47.76	4.68	D50	50128	GRB 081230	13m 15.254s	1m 42.065s			1	0
333427	2008-11-02	17:44:40.520	22:04:41.640	+052:59:36.24	3.24	D50	50105	GRB 081102	12m 4.144s	9.568s			1	0
324122	2008-09-08	08:49:49.910	18:42:21.192	-011:29:38.04	180	D50	50062	-	10:47:59.792	10:24:30.027		Swift J1842.5-1124	1	0
323542	2008-09-03	01:12:23.300	05:47:10.176	+051:15:52.20	2.52	D50	50055	GRB 080903	49.618s	30.871s			1	0	bbb.pdf R = 19.72 +/- 0.22
323192	2008-09-01	01:22:48.450	05:01:04.248	+045:18:35.64	180	D50	50054	-	2m 5.710s	1m 52.970s			1	0
319584	2008-08-10	13:10:12.280	23:47:10.488	+000:19:09.84	0.72	D50	50038	GRB 080810	9:14:00.9900.990s	9:13:45.462			1	0	GRB 080810: D50 optical observation
318170	2008-07-27	23:07:35.390	02:10:32.112	+064:08:15.72	2.52	D50	50036	-	31.227s	5.631s			1	0
20073	2008-06-02	21:44:07.000	00:17:40.776	+048:34:12.00	240.001	D50	50004	-	2:30:11.640	-			1	0
310613	2008-04-30	19:53:02	11:01:14.7	+51:41:08.6	1	D50	1064	GRB 080430	45min	-	2.9h	Afterglow detection at D50	371	0	GRB080430: Optical observation (...)

This file was is modified by a human on 25-Jul-19.