TITLE: GCN CIRCULAR NUMBER: 27768 SUBJECT: Fermi trigger No 611676654: Global MASTER-Net observations report DATE: 20/05/20 19:00:56 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, D.Kuvshinov, D. Cheryasov (Lomonosov Moscow State University, SAI, Physics Department), 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), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), D. Buckley (South African Astronomical Observatory), O.A. Gres, 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-Kislovodsk robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the Fermi GRB200520.59 (trigger No 611676654,18h 53m 52.08s , +26d 52m 01.2s, R=34.83) errorbox 15061 sec after notice time and 15089 sec after trigger time at 2020-05-20 18:22:19 UT, with upper limit up to 17.4 mag. Observations started at twilight. The observations began at zenith distance = 80 deg. The sun altitude is -16.3 deg. The galactic latitude b = 11 deg., longitude l = 58 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1361493 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 15120 | 2020-05-20 18:22:19 | MASTER-Kislovodsk | (18h 51m 52.05s , +11d 38m 44.9s) | C | 60 | 16.2 | 15120 | 2020-05-20 18:22:19 | MASTER-Kislovodsk | (18h 43m 36.34s , +12d 07m 35.2s) | C | 60 | 16.7 | 15200 | 2020-05-20 18:23:40 | MASTER-Kislovodsk | (19h 01m 10.75s , +13d 37m 22.1s) | C | 60 | 16.8 | 15200 | 2020-05-20 18:23:40 | MASTER-Kislovodsk | (18h 52m 51.22s , +14d 06m 14.8s) | C | 60 | 16.9 | 15281 | 2020-05-20 18:25:00 | MASTER-Kislovodsk | (18h 44m 11.01s , +09d 36m 58.2s) | C | 60 | 16.7 | 15281 | 2020-05-20 18:25:00 | MASTER-Kislovodsk | (18h 35m 58.71s , +10d 05m 49.1s) | C | 60 | 16.6 | 15361 | 2020-05-20 18:26:20 | MASTER-Kislovodsk | (19h 11m 56.64s , +15d 36m 23.1s) | C | 60 | 16.2 | 15361 | 2020-05-20 18:26:20 | MASTER-Kislovodsk | (19h 03m 32.65s , +16d 05m 17.5s) | C | 60 | 16.5 | 15441 | 2020-05-20 18:27:41 | MASTER-Kislovodsk | (18h 51m 55.54s , +11d 38m 20.2s) | C | 60 | 16.0 | 15441 | 2020-05-20 18:27:41 | MASTER-Kislovodsk | (18h 43m 39.71s , +12d 07m 10.9s) | C | 60 | 16.6 | 15522 | 2020-05-20 18:29:01 | MASTER-Kislovodsk | (19h 01m 07.21s , +13d 36m 52.1s) | C | 60 | 16.7 | 15522 | 2020-05-20 18:29:01 | MASTER-Kislovodsk | (18h 52m 47.49s , +14d 05m 43.4s) | C | 60 | 16.9 | 15602 | 2020-05-20 18:30:22 | MASTER-Kislovodsk | (18h 44m 18.33s , +09d 38m 35.4s) | C | 60 | 16.2 | 15602 | 2020-05-20 18:30:22 | MASTER-Kislovodsk | (18h 36m 05.55s , +10d 07m 25.8s) | C | 60 | 16.0 | 15683 | 2020-05-20 18:31:42 | MASTER-Kislovodsk | (19h 11m 50.13s , +15d 37m 08.4s) | C | 60 | 16.5 | 15683 | 2020-05-20 18:31:42 | MASTER-Kislovodsk | (19h 03m 25.67s , +16d 06m 00.4s) | C | 60 | 16.8 | 15764 | 2020-05-20 18:33:03 | MASTER-Kislovodsk | (19h 08m 14.09s , +11d 38m 15.9s) | C | 60 | 16.0 | 15764 | 2020-05-20 18:33:03 | MASTER-Kislovodsk | (18h 59m 58.69s , +12d 07m 16.0s) | C | 60 | 16.3 | 15844 | 2020-05-20 18:34:24 | MASTER-Kislovodsk | (19h 00m 32.81s , +09d 37m 34.7s) | C | 60 | 16.6 | 15845 | 2020-05-20 18:34:24 | MASTER-Kislovodsk | (18h 52m 20.68s , +10d 06m 34.4s) | C | 60 | 16.2 | 15925 | 2020-05-20 18:35:44 | MASTER-Kislovodsk | (18h 54m 06.75s , +07d 36m 49.3s) | C | 60 | 16.6 | 15925 | 2020-05-20 18:35:44 | MASTER-Kislovodsk | (18h 45m 57.34s , +08d 05m 49.2s) | C | 60 | 15.9 | 16005 | 2020-05-20 18:37:05 | MASTER-Kislovodsk | (19h 17m 40.74s , +13d 36m 03.8s) | C | 60 | 16.5 | 16005 | 2020-05-20 18:37:05 | MASTER-Kislovodsk | (19h 09m 21.45s , +14d 05m 03.6s) | C | 60 | 16.1 | 16086 | 2020-05-20 18:38:26 | MASTER-Kislovodsk | (19h 08m 17.30s , +11d 38m 10.0s) | C | 60 | 16.0 | 16086 | 2020-05-20 18:38:26 | MASTER-Kislovodsk | (19h 00m 01.79s , +12d 07m 07.0s) | C | 60 | 15.3 | 16167 | 2020-05-20 18:39:46 | MASTER-Kislovodsk | (19h 00m 28.76s , +09d 36m 57.9s) | C | 60 | 15.8 | 16167 | 2020-05-20 18:39:46 | MASTER-Kislovodsk | (18h 52m 16.42s , +10d 05m 53.9s) | C | 60 | 15.9 | 16247 | 2020-05-20 18:41:07 | MASTER-Kislovodsk | (18h 54m 13.04s , +07d 38m 40.2s) | C | 60 | 15.1 | 16247 | 2020-05-20 18:41:07 | MASTER-Kislovodsk | (18h 46m 03.33s , +08d 07m 36.9s) | C | 60 | 16.0 | 16328 | 2020-05-20 18:42:27 | MASTER-Kislovodsk | (19h 17m 34.13s , +13d 37m 15.7s) | C | 60 | 15.0 | 16328 | 2020-05-20 18:42:27 | MASTER-Kislovodsk | (19h 09m 14.43s , +14d 06m 10.1s) | C | 60 | 15.8 | 16408 | 2020-05-20 18:43:48 | MASTER-Kislovodsk | (18h 55m 13.90s , +15d 39m 11.9s) | C | 60 | 16.6 | 16408 | 2020-05-20 18:43:48 | MASTER-Kislovodsk | (18h 46m 47.27s , +16d 07m 51.9s) | C | 60 | 16.9 | 16489 | 2020-05-20 18:45:08 | MASTER-Kislovodsk | (18h 44m 42.18s , +13d 38m 35.2s) | C | 60 | 17.3 | 16489 | 2020-05-20 18:45:08 | MASTER-Kislovodsk | (18h 36m 19.90s , +14d 07m 13.3s) | C | 60 | 17.4 | 16570 | 2020-05-20 18:46:29 | MASTER-Kislovodsk | (18h 49m 13.35s , +05d 37m 26.6s) | C | 60 | 16.5 | 16570 | 2020-05-20 18:46:29 | MASTER-Kislovodsk | (18h 41m 05.37s , +06d 06m 19.1s) | C | 60 | 16.3 | 16650 | 2020-05-20 18:47:50 | MASTER-Kislovodsk | (19h 16m 45.68s , +09d 36m 39.6s) | C | 60 | 14.9 | 16650 | 2020-05-20 18:47:50 | MASTER-Kislovodsk | (19h 08m 33.49s , +10d 05m 41.3s) | C | 60 | 15.3 | 16731 | 2020-05-20 18:49:10 | MASTER-Kislovodsk | (18h 55m 16.28s , +15d 38m 53.4s) | C | 60 | 17.0 | 16731 | 2020-05-20 18:49:10 | MASTER-Kislovodsk | (18h 46m 49.24s , +16d 07m 30.7s) | C | 60 | 17.3 | 16811 | 2020-05-20 18:50:31 | MASTER-Kislovodsk | (18h 44m 40.66s , +13d 37m 48.2s) | C | 60 | 16.7 | 16811 | 2020-05-20 18:50:31 | MASTER-Kislovodsk | (18h 36m 17.94s , +14d 06m 22.9s) | C | 60 | 17.1 | 16892 | 2020-05-20 18:51:51 | MASTER-Kislovodsk | (18h 49m 20.08s , +05d 39m 07.1s) | C | 60 | 16.0 | 16892 | 2020-05-20 18:51:51 | MASTER-Kislovodsk | (18h 41m 11.59s , +06d 07m 55.9s) | C | 60 | 16.1 | 16972 | 2020-05-20 18:53:12 | MASTER-Kislovodsk | (19h 16m 41.16s , +09d 37m 39.8s) | C | 60 | 15.2 | 16972 | 2020-05-20 18:53:12 | MASTER-Kislovodsk | (19h 08m 28.55s , +10d 06m 35.6s) | C | 60 | 16.2 | 17053 | 2020-05-20 18:54:32 | MASTER-Kislovodsk | (19h 10m 16.04s , +07d 38m 56.2s) | C | 60 | 16.2 | 17053 | 2020-05-20 18:54:32 | MASTER-Kislovodsk | (19h 02m 06.02s , +08d 07m 51.9s) | C | 60 | 16.7 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.