TITLE: GCN CIRCULAR NUMBER: 25314 SUBJECT: FRB 190806: MASTER optical observation DATE: 19/08/12 11:55:03 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, F.Balakin, E. Gorbovskoy, V. Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, V. Vladimirov, D. Vlasenko, I.Gorbunov,D.Zimnukhov, V. Senik, A.Chasovnikov, A.Pozdnyakov, D.Kuvshinov(Lomonosov Moscow State University, SAI, Physics Department), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias IAC), R. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar OAFA), H. Levato (Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE), D. Buckley (South African Astronomical Observatory SAAO), O. Gress, N.M. Budnev, O.Ershova (Irkutsk State University, API), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), V. Yurkov, A. Gabovich, Yu. Sergienko (Blagoveschensk Educational State University) MASTER Global Robotic Net ( http://observ.pereplet.ru, Lipunov et al., 2010,Advances in Astronomy, vol. 2010, 30L) started UTMOST FRB190806(Gupta et al. ATel #12995) inspect at 2019-08-07 19:30:35 UT There are 73 180s-expositions . MASTER-Kislovodsk robotic telescope (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory, Russia) started inspect of the UTMOST FRB190806.71 errorbox 1 days 8557 sec after trigger time at 2019-08-07 19:30:35 UT, with upper limit up to 19.7 mag. The observations began at zenit distance = 79 deg. The sun altitude is -25.8 deg. MASTER-Tavrida robotic telescope (Lomonosov MSU, SAI Crimea astronomical station, Russia) started inspect of the UTMOST FRB190806.71 errorbox 1 days 20365 sec after trigger time at 2019-08-07 22:47:23 UT, with upper limit up to 20.5 mag. The observations began at zenit distance = 56 deg. The sun altitude is -28.2 deg. MASTER-OAFA robotic telescope (OAFA observatory of San Juan National University, Argentina) started inspect of the UTMOST FRB190806.71 error-box 48954 sec after notice time(1 days 31509 sec after trigger time) at 2019-08-08 01:53:07 UT. The sun altitude was -48.8 deg. We didn't find optical transient connected with FRB190806 brighter than 20.5m. There are the following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 95048 | 2019-08-07 19:30:35 | MASTER-Kislovodsk | ( 0h 2m 59.52s , - 4d 19m 40.57s) | C | 180 | 18.2 | 95264 | 2019-08-07 19:34:11 | MASTER-Kislovodsk | ( 0h 2m 59.70s , - 4d 19m 20.14s) | C | 180 | 18.2 | 95585 | 2019-08-07 19:39:32 | MASTER-Kislovodsk | ( 23h 54m 51.13s , - 5d 51m 41.20s) | C | 180 | 18.1 | 95585 | 2019-08-07 19:39:32 | MASTER-Kislovodsk | ( 0h 2m 57.38s , - 6d 19m 31.43s) | C | 180 | 18.1 | 95799 | 2019-08-07 19:43:06 | MASTER-Kislovodsk | ( 23h 54m 52.41s , - 5d 51m 36.67s) | C | 180 | 18.2 | 95799 | 2019-08-07 19:43:07 | MASTER-Kislovodsk | ( 0h 2m 58.69s , - 6d 19m 25.77s) | C | 180 | 17.9 | 96054 | 2019-08-07 19:47:22 | MASTER-Kislovodsk | ( 23h 54m 48.43s , - 7d 51m 04.73s) | C | 180 | 18.2 | 96054 | 2019-08-07 19:47:22 | MASTER-Kislovodsk | ( 0h 2m 56.58s , - 8d 18m 57.79s) | C | 180 | 18.4 | 96268 | 2019-08-07 19:50:56 | MASTER-Kislovodsk | ( 23h 54m 51.55s , - 5d 51m 22.92s) | C | 180 | 18.3 | 96268 | 2019-08-07 19:50:56 | MASTER-Kislovodsk | ( 0h 2m 58.25s , - 6d 19m 09.72s) | C | 180 | 18.3 | 96709 | 2019-08-07 19:58:16 | MASTER-Kislovodsk | ( 23h 54m 49.72s , - 7d 50m 46.83s) | C | 180 | 18.6 | 96709 | 2019-08-07 19:58:16 | MASTER-Kislovodsk | ( 0h 2m 58.42s , - 8d 18m 34.92s) | C | 180 | 18.5 | 104123 | 2019-08-07 22:01:51 | MASTER-Kislovodsk | ( 23h 59m 21.06s , - 8d 45m 17.00s) | C | 180 | 19.3 | 104123 | 2019-08-07 22:01:51 | MASTER-Kislovodsk | ( 23h 59m 22.48s , - 9d 12m 33.65s) | C | 180 | 19.3 | 104353 | 2019-08-07 22:05:41 | MASTER-Kislovodsk | ( 23h 59m 21.29s , - 8d 45m 35.64s) | C | 180 | 19.3 | 104353 | 2019-08-07 22:05:41 | MASTER-Kislovodsk | ( 23h 59m 22.90s , - 9d 12m 54.27s) | C | 180 | 19.3 | 105313 | 2019-08-07 22:21:40 | MASTER-Kislovodsk | ( 23h 59m 22.24s , - 6d 43m 53.69s) | C | 180 | 18.9 | 105313 | 2019-08-07 22:21:40 | MASTER-Kislovodsk | ( 23h 59m 30.15s , - 7d 12m 37.16s) | C | 180 | 19.1 | 105536 | 2019-08-07 22:25:24 | MASTER-Kislovodsk | ( 23h 59m 22.48s , - 6d 43m 38.38s) | C | 180 | 19.1 | 105536 | 2019-08-07 22:25:24 | MASTER-Kislovodsk | ( 23h 59m 30.40s , - 7d 12m 22.81s) | C | 180 | 19.5 | 105754 | 2019-08-07 22:29:02 | MASTER-Kislovodsk | ( 23h 59m 21.59s , - 6d 43m 38.68s) | C | 180 | 19.2 | 105755 | 2019-08-07 22:29:02 | MASTER-Kislovodsk | ( 23h 59m 29.65s , - 7d 12m 23.76s) | C | 180 | 19.5 | 105967 | 2019-08-07 22:32:35 | MASTER-Kislovodsk | ( 23h 59m 21.77s , - 6d 43m 57.93s) | C | 180 | 19.1 | 105967 | 2019-08-07 22:32:35 | MASTER-Kislovodsk | ( 23h 59m 29.97s , - 7d 12m 43.39s) | C | 180 | 19.2 | 106192 | 2019-08-07 22:36:19 | MASTER-Kislovodsk | ( 23h 59m 22.92s , - 6d 43m 55.47s) | C | 180 | 19.1 | 106192 | 2019-08-07 22:36:19 | MASTER-Kislovodsk | ( 23h 59m 31.26s , - 7d 12m 41.24s) | C | 180 | 19.4 | 106414 | 2019-08-07 22:40:02 | MASTER-Kislovodsk | ( 23h 59m 23.04s , - 6d 43m 31.93s) | C | 180 | 18.8 | 106414 | 2019-08-07 22:40:02 | MASTER-Kislovodsk | ( 23h 59m 31.64s , - 7d 12m 17.32s) | C | 180 | 18.9 | 106651 | 2019-08-07 22:43:59 | MASTER-Kislovodsk | ( 23h 59m 23.42s , - 4d 43m 32.06s) | C | 180 | 19.1 | 106651 | 2019-08-07 22:43:59 | MASTER-Kislovodsk | ( 23h 59m 32.70s , - 5d 12m 16.76s) | C | 180 | 19.3 | 106856 | 2019-08-07 22:47:23 | MASTER-Tavrida | ( 23h 55m 48.33s , - 6d 7m 03.85s) | C | 180 | 19.4 | 106856 | 2019-08-07 22:47:23 | MASTER-Tavrida | ( 0h 2m 42.75s , - 6d 11m 03.06s) | C | 180 | 19.3 | 106866 | 2019-08-07 22:47:34 | MASTER-Kislovodsk | ( 23h 59m 23.54s , - 4d 43m 49.33s) | C | 180 | 19.3 | 106866 | 2019-08-07 22:47:34 | MASTER-Kislovodsk | ( 23h 59m 32.91s , - 5d 12m 33.42s) | C | 180 | 19.2 | 107073 | 2019-08-07 22:51:01 | MASTER-Tavrida | ( 0h 2m 42.45s , - 8d 11m 11.13s) | C | 180 | 19.6 | 107073 | 2019-08-07 22:51:01 | MASTER-Tavrida | ( 23h 55m 46.14s , - 8d 7m 11.68s) | C | 180 | 19.7 | 107109 | 2019-08-07 22:51:36 | MASTER-Kislovodsk | ( 23h 59m 24.65s , - 4d 43m 46.95s) | C | 180 | 19.4 | 107109 | 2019-08-07 22:51:36 | MASTER-Kislovodsk | ( 23h 59m 34.20s , - 5d 12m 30.34s) | C | 180 | 19.4 | 107335 | 2019-08-07 22:55:22 | MASTER-Kislovodsk | ( 23h 59m 24.82s , - 4d 43m 24.89s) | C | 180 | 19.5 | 107335 | 2019-08-07 22:55:22 | MASTER-Kislovodsk | ( 23h 59m 34.43s , - 5d 12m 08.24s) | C | 180 | 19.2 | 107510 | 2019-08-07 22:58:18 | MASTER-Tavrida | ( 0h 2m 42.93s , - 6d 11m 32.32s) | C | 180 | 19.5 | 107510 | 2019-08-07 22:58:18 | MASTER-Tavrida | ( 23h 55m 48.16s , - 6d 7m 36.21s) | C | 180 | 19.8 | 107570 | 2019-08-07 22:59:17 | MASTER-Kislovodsk | ( 23h 59m 23.89s , - 4d 43m 22.48s) | C | 180 | 19.5 | 107570 | 2019-08-07 22:59:17 | MASTER-Kislovodsk | ( 23h 59m 33.67s , - 5d 12m 06.07s) | C | 180 | 19.4 | 107727 | 2019-08-07 23:01:55 | MASTER-Tavrida | ( 23h 55m 47.29s , - 8d 7m 19.32s) | C | 180 | 19.8 | 107791 | 2019-08-07 23:02:59 | MASTER-Kislovodsk | ( 23h 59m 24.00s , - 4d 43m 42.97s) | C | 180 | 19.5 | 107791 | 2019-08-07 23:02:59 | MASTER-Kislovodsk | ( 23h 59m 33.84s , - 5d 12m 26.61s) | C | 180 | 19.5 | 108164 | 2019-08-07 23:09:12 | MASTER-Tavrida | ( 0h 0m 21.03s , - 4d 8m 16.08s) | C | 180 | 19.7 | 108344 | 2019-08-07 23:09:12 | MASTER-Tavrida | ( 0h 0m 21.03s , - 4d 8m 16.09s) | C | 540 | 20.4 | Coadd 108164 | 2019-08-07 23:09:12 | MASTER-Tavrida | ( 23h 59m 10.25s , - 4d 10m 21.26s) | C | 180 | 19.7 | 108344 | 2019-08-07 23:09:12 | MASTER-Tavrida | ( 23h 59m 10.25s , - 4d 10m 21.28s) | C | 540 | 20.5 | Coadd 108383 | 2019-08-07 23:12:50 | MASTER-Tavrida | ( 0h 0m 21.75s , - 4d 8m 15.82s) | C | 180 | 19.7 | 108383 | 2019-08-07 23:12:50 | MASTER-Tavrida | ( 23h 59m 12.37s , - 4d 10m 21.38s) | C | 180 | 19.7 | 108601 | 2019-08-07 23:16:29 | MASTER-Tavrida | ( 23h 59m 12.20s , - 4d 10m 00.98s) | C | 180 | 19.8 | 108601 | 2019-08-07 23:16:29 | MASTER-Tavrida | ( 0h 0m 21.93s , - 4d 7m 55.01s) | C | 180 | 19.6 | 108821 | 2019-08-07 23:20:08 | MASTER-Tavrida | ( 0h 0m 22.85s , - 6d 7m 44.88s) | C | 180 | 19.6 | 109001 | 2019-08-07 23:20:08 | MASTER-Tavrida | ( 0h 0m 22.85s , - 6d 7m 44.90s) | C | 540 | 20.3 | Coadd 108821 | 2019-08-07 23:20:08 | MASTER-Tavrida | ( 23h 59m 08.62s , - 6d 9m 50.86s) | C | 180 | 19.6 | 109001 | 2019-08-07 23:20:08 | MASTER-Tavrida | ( 23h 59m 08.62s , - 6d 9m 50.85s) | C | 540 | 20.4 | Coadd 109039 | 2019-08-07 23:23:46 | MASTER-Tavrida | ( 0h 0m 24.48s , - 6d 8m 03.51s) | C | 180 | 19.6 | 109039 | 2019-08-07 23:23:46 | MASTER-Tavrida | ( 23h 59m 06.82s , - 6d 10m 08.80s) | C | 180 | 19.6 | 109262 | 2019-08-07 23:27:29 | MASTER-Tavrida | ( 0h 0m 26.45s , - 6d 8m 02.60s) | C | 180 | 19.6 | 109262 | 2019-08-07 23:27:29 | MASTER-Tavrida | ( 23h 59m 07.37s , - 6d 10m 07.65s) | C | 180 | 19.7 | 109482 | 2019-08-07 23:31:10 | MASTER-Tavrida | ( 0h 0m 27.59s , - 8d 7m 37.33s) | C | 180 | 19.8 | 109662 | 2019-08-07 23:31:10 | MASTER-Tavrida | ( 0h 0m 27.59s , - 8d 7m 37.30s) | C | 540 | 20.4 | Coadd 109482 | 2019-08-07 23:31:10 | MASTER-Tavrida | ( 23h 59m 06.47s , - 8d 9m 42.79s) | C | 180 | 19.8 | 109662 | 2019-08-07 23:31:10 | MASTER-Tavrida | ( 23h 59m 06.47s , - 8d 9m 42.79s) | C | 540 | 20.5 | Coadd 109701 | 2019-08-07 23:34:49 | MASTER-Tavrida | ( 0h 0m 26.64s , - 8d 7m 36.84s) | C | 180 | 19.7 | 109701 | 2019-08-07 23:34:49 | MASTER-Tavrida | ( 23h 59m 04.63s , - 8d 9m 42.30s) | C | 180 | 19.8 | 109922 | 2019-08-07 23:38:29 | MASTER-Tavrida | ( 0h 0m 27.01s , - 8d 7m 56.50s) | C | 180 | 19.7 | 109922 | 2019-08-07 23:38:29 | MASTER-Tavrida | ( 23h 59m 04.18s , - 8d 10m 01.52s) | C | 180 | 19.9 | 111891 | 2019-08-08 00:11:18 | MASTER-Kislovodsk | ( 0h 0m 18.14s , - 8d 51m 43.22s) | C | 180 | 19.1 | 111891 | 2019-08-08 00:11:18 | MASTER-Kislovodsk | ( 0h 0m 20.49s , - 8d 24m 30.31s) | C | 180 | 19.0 | 112114 | 2019-08-08 00:15:02 | MASTER-Kislovodsk | ( 0h 0m 18.47s , - 8d 51m 34.17s) | C | 180 | 19.4 | 112114 | 2019-08-08 00:15:02 | MASTER-Kislovodsk | ( 0h 0m 20.78s , - 8d 24m 23.02s) | C | 180 | 19.4 | 112336 | 2019-08-08 00:18:44 | MASTER-Kislovodsk | ( 0h 0m 19.98s , - 8d 24m 28.21s) | C | 180 | 19.6 | 112336 | 2019-08-08 00:18:44 | MASTER-Kislovodsk | ( 0h 0m 17.78s , - 8d 51m 38.43s) | C | 180 | 19.6 | 112552 | 2019-08-08 00:22:19 | MASTER-Kislovodsk | ( 0h 0m 18.11s , - 8d 51m 59.70s) | C | 180 | 19.7 | 112552 | 2019-08-08 00:22:19 | MASTER-Kislovodsk | ( 0h 0m 20.17s , - 8d 24m 50.06s) | C | 180 | 19.6 | Filter C is a clear (unfiltred band). The observation and reduction will continue. The message may be cited.