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GCN Circular 24421

Subject
Fermi GRB190507.27 Global MASTER-Net observations report
Date
2019-05-07T23:01:35Z (5 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, E. Gorbovskoy, V.Kornilov, D.Kuvshinov, N.Tyurina, P.Balanutsa,
A.Kuznetsov, V.V.Chazov, D. Vlasenko
(Lomonosov Moscow State University,
Sternberg Astronomical Institute, Moscow State University)

A. Tlatov, V.Senik, A.V. Parhomenko, D. Dormidontov
(Kislovodsk Solar Station of the Pulkovo Observatory)

K. Ivanov, O. Gres, N.M. Budnev, S. Yazev, O. Chuvalaev, V. Poleshchuk
(Irkutsk State University)

V. Yurkov, A. Gabovich, Yu. Sergienko
(Blagoveschensk Educational State University, Blagoveschensk)

R. Podesta, Carlos Lopez and F. Podesta
(Observatorio Astronomico Felix Aguilar (OAFA))

Hugo Levato and Carlos Saffe
(Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE))

R. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres
(The Instituto de Astrofisica de Canarias)

D. Buckley, S. Potter, A. Kniazev, M. Kotze
(South African Astronomical Observatory)



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 GRB190507.27 (trigger No 578903308, 10h 23m 09.60s , -13d 48m 00.00s, R=4.07) errorbox  40221 sec after trigger time at 2019-05-07 17:38:44 UT, with upper limit up to  18.9 mag. Observations started at twilight.  The observations began at zenit distance = 59 deg. The sun  altitude  is -13.4 deg. 

MASTER-SAAO robotic telescope  located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB190507.27 errorbox  44261 sec after trigger time at 2019-05-07 18:46:04 UT, with upper limit up to  16.1 mag. The observations began at zenit distance = 21 deg. The sun  altitude  is -36.2 deg. 

MASTER-IAC robotic telescope  located in Spain (IAC Teide Observatory) started inspect of the Fermi GRB190507.27 errorbox  50099 sec after trigger time at 2019-05-07 20:23:22 UT, with upper limit up to  19.1 mag. Observations started at twilight.  The observations began at zenit distance = 42 deg. The sun  altitude  is -9.6 deg. 

The galactic latitude b = -60 deg., longitude l = 98 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1010417

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

   40251 | 2019-05-07 17:38:44 |   MASTER-Kislovodsk | ( 10h 29m 53.96s , - 9d 30m 04.94s) |   C |    60 | 18.2 |        
   40251 | 2019-05-07 17:38:44 |   MASTER-Kislovodsk | ( 10h 38m 08.58s , - 9d 57m 18.93s) |   C |    60 | 18.1 |        
   40338 | 2019-05-07 17:40:11 |   MASTER-Kislovodsk | ( 10h 34m 12.98s , -11d 30m 23.81s) |   C |    60 | 18.4 |        
   40338 | 2019-05-07 17:40:11 |   MASTER-Kislovodsk | ( 10h 42m 30.08s , -11d 57m 36.27s) |   C |    60 | 18.2 |        
   40516 | 2019-05-07 17:43:09 |   MASTER-Kislovodsk | ( 10h 31m 16.49s , -13d 57m 22.37s) |   C |    60 | 18.3 |        
   40516 | 2019-05-07 17:43:09 |   MASTER-Kislovodsk | ( 10h 22m 56.72s , -13d 30m 17.36s) |   C |    60 | 18.5 |        
   40603 | 2019-05-07 17:44:36 |   MASTER-Kislovodsk | ( 10h 38m 09.08s , - 9d 57m 24.93s) |   C |    60 | 18.4 |        
   40603 | 2019-05-07 17:44:36 |   MASTER-Kislovodsk | ( 10h 29m 54.61s , - 9d 30m 12.73s) |   C |    60 | 18.6 |        
   40690 | 2019-05-07 17:46:03 |   MASTER-Kislovodsk | ( 10h 42m 30.60s , -11d 57m 41.06s) |   C |    60 | 18.3 |        
   40690 | 2019-05-07 17:46:03 |   MASTER-Kislovodsk | ( 10h 34m 13.57s , -11d 30m 30.42s) |   C |    60 | 18.4 |        
   41076 | 2019-05-07 17:52:29 |   MASTER-Kislovodsk | ( 10h 31m 15.23s , -13d 57m 30.11s) |   C |    60 | 18.3 |        
   41077 | 2019-05-07 17:52:29 |   MASTER-Kislovodsk | ( 10h 22m 55.18s , -13d 30m 24.09s) |   C |    60 | 18.5 |        
   41165 | 2019-05-07 17:53:57 |   MASTER-Kislovodsk | ( 10h 26m 11.28s , -11d 57m 55.09s) |   C |    60 | 18.6 |        
   41165 | 2019-05-07 17:53:57 |   MASTER-Kislovodsk | ( 10h 17m 54.60s , -11d 30m 47.99s) |   C |    60 | 18.7 |        
   41342 | 2019-05-07 17:56:55 |   MASTER-Kislovodsk | ( 10h 20m 35.70s , -15d 57m 39.36s) |   C |    60 | 18.4 |        
   41342 | 2019-05-07 17:56:55 |   MASTER-Kislovodsk | ( 10h 12m 12.65s , -15d 30m 40.49s) |   C |    60 | 18.5 |        
   41430 | 2019-05-07 17:58:23 |   MASTER-Kislovodsk | ( 10h 37m 12.94s , -15d 57m 31.81s) |   C |    60 | 18.5 |        
   41430 | 2019-05-07 17:58:23 |   MASTER-Kislovodsk | ( 10h 28m 49.64s , -15d 30m 27.26s) |   C |    60 | 18.4 |        
   41517 | 2019-05-07 17:59:50 |   MASTER-Kislovodsk | ( 10h 26m 11.28s , -11d 58m 01.67s) |   C |    60 | 18.5 |        
   41517 | 2019-05-07 17:59:50 |   MASTER-Kislovodsk | ( 10h 17m 55.17s , -11d 30m 55.35s) |   C |    60 | 18.7 |        
   41906 | 2019-05-07 18:06:19 |   MASTER-Kislovodsk | ( 10h 20m 34.15s , -15d 57m 51.02s) |   C |    60 | 18.3 |        
   41906 | 2019-05-07 18:06:19 |   MASTER-Kislovodsk | ( 10h 12m 13.77s , -15d 30m 53.88s) |   C |    60 | 18.5 |        
   41995 | 2019-05-07 18:07:47 |   MASTER-Kislovodsk | ( 10h 28m 51.53s , -15d 30m 58.82s) |   C |    60 | 18.4 |        
   41995 | 2019-05-07 18:07:47 |   MASTER-Kislovodsk | ( 10h 37m 12.38s , -15d 58m 01.47s) |   C |    60 | 18.5 |        
   42171 | 2019-05-07 18:10:44 |   MASTER-Kislovodsk | ( 10h 14m 47.88s , -13d 58m 01.66s) |   C |    60 | 18.6 |        
   42171 | 2019-05-07 18:10:44 |   MASTER-Kislovodsk | ( 10h  6m 31.46s , -13d 31m 04.20s) |   C |    60 | 18.8 |        
   42258 | 2019-05-07 18:12:11 |   MASTER-Kislovodsk | ( 10h 27m 14.37s , -17d 57m 51.21s) |   C |    60 | 18.3 |        
   42258 | 2019-05-07 18:12:11 |   MASTER-Kislovodsk | ( 10h 18m 49.58s , -17d 30m 55.87s) |   C |    60 | 18.3 |        
   42347 | 2019-05-07 18:13:40 |   MASTER-Kislovodsk | ( 10h  9m 49.77s , -11d 58m 28.92s) |   C |    60 | 18.7 |        
   42347 | 2019-05-07 18:13:40 |   MASTER-Kislovodsk | ( 10h  1m 36.69s , -11d 31m 31.47s) |   C |    60 | 18.8 |        
   42523 | 2019-05-07 18:16:36 |   MASTER-Kislovodsk | ( 10h  6m 32.16s , -13d 31m 12.19s) |   C |    60 | 18.9 |        
   42523 | 2019-05-07 18:16:36 |   MASTER-Kislovodsk | ( 10h 14m 48.34s , -13d 58m 07.89s) |   C |    60 | 18.6 |        
   42611 | 2019-05-07 18:18:03 |   MASTER-Kislovodsk | ( 10h 18m 50.14s , -17d 31m 01.97s) |   C |    60 | 18.4 |        
   42611 | 2019-05-07 18:18:03 |   MASTER-Kislovodsk | ( 10h 27m 14.71s , -17d 57m 55.47s) |   C |    60 | 18.3 |        
   42699 | 2019-05-07 18:19:32 |   MASTER-Kislovodsk | ( 10h  9m 50.17s , -11d 58m 34.97s) |   C |    60 | 18.7 |        
   42699 | 2019-05-07 18:19:32 |   MASTER-Kislovodsk | ( 10h  1m 37.34s , -11d 31m 39.22s) |   C |    60 | 18.9 |        
   42968 | 2019-05-07 18:24:00 |   MASTER-Kislovodsk | ( 10h  3m 57.74s , -15d 58m 23.09s) |   C |    60 | 18.5 |        
   43056 | 2019-05-07 18:25:29 |   MASTER-Kislovodsk | ( 10h 45m 29.46s , -15d 31m 00.25s) |   C |    60 | 18.7 |        
   43322 | 2019-05-07 18:29:54 |   MASTER-Kislovodsk | ( 10h  3m 58.11s , -15d 58m 28.94s) |   C |    60 | 18.6 |        
   43410 | 2019-05-07 18:31:22 |   MASTER-Kislovodsk | ( 10h 45m 29.98s , -15d 31m 05.77s) |   C |    60 | 18.7 |        
   44292 | 2019-05-07 18:46:04 |         MASTER-SAAO | ( 10h 13m 08.43s , - 9d 47m 36.73s) |   C |    60 | 13.7 |        
   44389 | 2019-05-07 18:47:42 |         MASTER-SAAO | ( 10h 21m 15.24s , - 9d 47m 02.62s) |   C |    60 | 13.3 |        
   44781 | 2019-05-07 18:54:13 |         MASTER-SAAO | ( 10h 21m 15.33s , - 9d 47m 36.72s) |   C |    60 | 16.1 |        
   50130 | 2019-05-07 20:23:22 |          MASTER-IAC | ( 10h 11m 56.46s , - 9d 50m 37.05s) |   C |    60 | 16.5 |        
   50130 | 2019-05-07 20:23:22 |          MASTER-IAC | ( 10h 20m 13.99s , - 9d 53m 31.36s) |   C |    60 | 16.8 |        
   50229 | 2019-05-07 20:25:02 |          MASTER-IAC | ( 10h 11m 56.43s , - 9d 50m 24.17s) |   C |    60 | 16.8 |        
   50229 | 2019-05-07 20:25:02 |          MASTER-IAC | ( 10h 20m 14.01s , - 9d 53m 19.12s) |   C |    60 | 17.1 |        
   51041 | 2019-05-07 20:38:33 |          MASTER-IAC | ( 10h 20m 13.35s , - 9d 53m 33.75s) |   C |    60 | 18.5 |        
   51041 | 2019-05-07 20:38:33 |          MASTER-IAC | ( 10h 11m 56.37s , - 9d 50m 33.27s) |   C |    60 | 18.0 |        
   51147 | 2019-05-07 20:40:19 |          MASTER-IAC | ( 10h 37m 35.52s , -13d 50m 09.22s) |   C |    60 | 18.0 |        
   51147 | 2019-05-07 20:40:20 |          MASTER-IAC | ( 10h 45m 59.82s , -13d 53m 09.37s) |   C |    60 | 18.4 |        
   51257 | 2019-05-07 20:42:10 |          MASTER-IAC | ( 10h 33m 42.85s , -17d 50m 34.90s) |   C |    60 | 18.0 |        
   52073 | 2019-05-07 20:55:45 |          MASTER-IAC | ( 10h 37m 34.85s , -13d 50m 30.86s) |   C |    60 | 18.6 |        
   52073 | 2019-05-07 20:55:45 |          MASTER-IAC | ( 10h 46m 00.22s , -13d 53m 31.40s) |   C |    60 | 19.0 |        
   52175 | 2019-05-07 20:57:28 |          MASTER-IAC | ( 10h 33m 43.51s , -17d 50m 38.53s) |   C |    60 | 18.7 |        
   52282 | 2019-05-07 20:59:15 |          MASTER-IAC | ( 10h  8m 41.53s , -17d 53m 53.84s) |   C |    60 | 19.0 |        
   52496 | 2019-05-07 21:02:48 |          MASTER-IAC | ( 10h 24m 22.08s , -19d 50m 51.97s) |   C |    60 | 18.6 |        
   52604 | 2019-05-07 21:04:37 |          MASTER-IAC | ( 10h  8m 41.80s , -17d 54m 18.62s) |   C |    60 | 19.1 |        
   52830 | 2019-05-07 21:08:23 |          MASTER-IAC | ( 10h 24m 21.91s , -19d 50m 34.51s) |   C |    60 | 18.6 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.
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