TITLE: GCN CIRCULAR NUMBER: 28032 SUBJECT: Fermi GRB 200626A: Global MASTER-Net observations report DATE: 20/06/26 06:15:08 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-IAC robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Spain (IAC Teide Observatory) started inspect of the Fermi GRB 200626A ( Fermi GBM team, GCN 28030) errorbox 4639 sec after notice time and 4666 sec after trigger time at 2020-06-26 03:49:18 UT, with upper limit up to 17.8 mag. The observations began at zenith distance = 77 deg. The sun altitude is -25.2 deg. The galactic latitude b = -11 deg., longitude l = 175 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1390351 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 4697 | 2020-06-26 03:49:18 | MASTER-IAC | (03h 16m 07.72s , +33d 51m 22.9s) | C | 60 | 14.2 | 4817 | 2020-06-26 03:51:18 | MASTER-IAC | (03h 20m 54.72s , +35d 50m 25.6s) | C | 60 | 16.4 | 5412 | 2020-06-26 04:01:14 | MASTER-IAC | (03h 16m 07.88s , +33d 52m 13.9s) | C | 60 | 17.1 | 5536 | 2020-06-26 04:03:18 | MASTER-IAC | (03h 20m 53.05s , +35d 51m 39.3s) | C | 60 | 17.4 | 6485 | 2020-06-26 04:19:06 | MASTER-IAC | (03h 20m 56.43s , +21d 56m 24.2s) | C | 60 | 17.7 | 6607 | 2020-06-26 04:21:08 | MASTER-IAC | (03h 18m 15.59s , +19d 57m 22.7s) | C | 60 | 17.6 | 7210 | 2020-06-26 04:31:11 | MASTER-IAC | (03h 21m 00.87s , +21d 55m 47.1s) | C | 60 | 17.8 | 7329 | 2020-06-26 04:33:10 | MASTER-IAC | (03h 18m 17.27s , +19d 57m 03.8s) | C | 60 | 17.8 | 7448 | 2020-06-26 04:35:09 | MASTER-IAC | (03h 49m 12.31s , +27d 55m 51.9s) | C | 60 | 17.3 | 7565 | 2020-06-26 04:37:06 | MASTER-IAC | (03h 58m 44.02s , +31d 57m 26.1s) | C | 60 | 17.4 | 7682 | 2020-06-26 04:39:03 | MASTER-IAC | (03h 53m 38.68s , +29d 56m 50.8s) | C | 60 | 17.5 | 7802 | 2020-06-26 04:41:03 | MASTER-IAC | (03h 49m 09.29s , +27d 57m 46.4s) | C | 60 | 17.4 | 7925 | 2020-06-26 04:43:06 | MASTER-IAC | (03h 58m 44.12s , +31d 56m 52.9s) | C | 60 | 17.4 | 8042 | 2020-06-26 04:45:03 | MASTER-IAC | (03h 53m 38.41s , +29d 55m 48.6s) | C | 60 | 17.5 | 8160 | 2020-06-26 04:47:01 | MASTER-IAC | (04h 04m 13.34s , +33d 56m 10.2s) | C | 60 | 17.4 | 8160 | 2020-06-26 04:47:01 | MASTER-IAC | (04h 13m 58.68s , +33d 52m 01.7s) | C | 60 | 13.3 | 8759 | 2020-06-26 04:57:00 | MASTER-IAC | (04h 04m 11.95s , +33d 58m 00.3s) | C | 60 | 17.2 | 8759 | 2020-06-26 04:57:00 | MASTER-IAC | (04h 13m 58.27s , +33d 53m 52.7s) | C | 60 | 16.2 | 8882 | 2020-06-26 04:59:03 | MASTER-IAC | (03h 58m 56.00s , +23d 57m 11.2s) | C | 60 | 17.1 | 9002 | 2020-06-26 05:01:03 | MASTER-IAC | (03h 55m 24.64s , +21d 58m 07.1s) | C | 60 | 16.9 | 9121 | 2020-06-26 05:03:02 | MASTER-IAC | (03h 45m 11.47s , +25d 56m 48.8s) | C | 60 | 16.9 | 9121 | 2020-06-26 05:03:02 | MASTER-IAC | (03h 54m 11.50s , +25d 52m 40.0s) | C | 60 | 14.9 | 9239 | 2020-06-26 05:05:01 | MASTER-IAC | (03h 58m 56.30s , +23d 56m 09.2s) | C | 60 | 16.9 | 9365 | 2020-06-26 05:07:07 | MASTER-IAC | (03h 55m 30.81s , +21d 56m 10.3s) | C | 60 | 16.4 | 9483 | 2020-06-26 05:09:04 | MASTER-IAC | (03h 45m 08.45s , +25d 57m 31.9s) | C | 60 | 16.4 | 9483 | 2020-06-26 05:09:04 | MASTER-IAC | (03h 54m 08.22s , +25d 53m 24.9s) | C | 60 | 15.9 | 9602 | 2020-06-26 05:11:04 | MASTER-IAC | (03h 23m 58.69s , +23d 55m 30.6s) | C | 60 | 16.9 | 9602 | 2020-06-26 05:11:04 | MASTER-IAC | (03h 32m 49.37s , +23d 51m 25.4s) | C | 60 | 16.3 | 9720 | 2020-06-26 05:13:02 | MASTER-IAC | (03h 24m 26.97s , +17d 52m 57.1s) | C | 60 | 16.2 | 9960 | 2020-06-26 05:17:01 | MASTER-IAC | (03h 23m 54.61s , +23d 57m 26.7s) | C | 60 | 16.4 | 9960 | 2020-06-26 05:17:01 | MASTER-IAC | (03h 32m 45.38s , +23d 53m 21.7s) | C | 60 | 15.8 | 10079 | 2020-06-26 05:19:00 | MASTER-IAC | (03h 24m 27.02s , +17d 52m 14.0s) | C | 60 | 15.8 | 10551 | 2020-06-26 05:26:53 | MASTER-IAC | (03h 38m 49.79s , +15d 53m 34.7s) | C | 60 | 14.3 | 10667 | 2020-06-26 05:28:48 | MASTER-IAC | (03h 36m 53.39s , +13d 52m 32.5s) | C | 60 | 14.0 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.