[vsnet-grb-info 22489] Fermi GRB190517.81 Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  24588
SUBJECT: Fermi GRB190517.81 Global MASTER-Net observations report 
DATE:    19/05/17 20:31:33 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov at 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 GRB190517.81 (trigger No 579814215, 17h 59m 24.00s , +25d 54m 36.00s, R=1) errorbox  92 sec after trigger time at 2019-05-17 19:31:42 UT, with upper limit up to  17.7 mag. The observations began at zenit distance = 51 deg. The sun  altitude  is -23.9 deg. 

MASTER-Tavrida robotic telescope  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB190517.81 errorbox  135 sec after trigger time at 2019-05-17 19:32:25 UT, with upper limit up to  15.6 mag. The observations began at zenit distance = 57 deg. The sun  altitude  is -20.3 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=1021627

We obtain a following upper limits.  

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

     103 | 2019-05-17 19:31:42 |   MASTER-Kislovodsk | ( 18h  2m 43.40s , +25d 11m 59.91s) |  P- |    20 | 16.9 |        
     103 | 2019-05-17 19:31:42 |   MASTER-Kislovodsk | ( 18h  2m 48.18s , +24d 44m 08.57s) |  P| |    20 | 16.9 |        
     150 | 2019-05-17 19:32:25 |      MASTER-Tavrida | ( 18h  0m 02.12s , +25d 53m 17.83s) |   C |    30 | 14.4 |        
     150 | 2019-05-17 19:32:25 |      MASTER-Tavrida | ( 17h 58m 58.93s , +25d 50m 33.56s) |   C |    30 | 13.9 |        
     152 | 2019-05-17 19:32:26 |   MASTER-Kislovodsk | ( 18h  2m 43.30s , +25d 12m 01.57s) |  P- |    30 | 17.1 |        
     152 | 2019-05-17 19:32:27 |   MASTER-Kislovodsk | ( 18h  2m 48.24s , +24d 44m 11.09s) |  P| |    30 | 17.1 |        
     211 | 2019-05-17 19:33:20 |   MASTER-Kislovodsk | ( 18h  2m 43.24s , +25d 12m 03.50s) |  P- |    40 | 17.3 |        
     211 | 2019-05-17 19:33:20 |   MASTER-Kislovodsk | ( 18h  2m 48.32s , +24d 44m 13.49s) |  P| |    40 | 17.3 |        
     213 | 2019-05-17 19:33:23 |      MASTER-Tavrida | ( 18h  0m 02.16s , +25d 53m 18.31s) |   C |    40 | 15.5 |        
     213 | 2019-05-17 19:33:23 |      MASTER-Tavrida | ( 17h 58m 58.94s , +25d 50m 33.91s) |   C |    40 | 15.1 |        
     283 | 2019-05-17 19:33:23 |      MASTER-Tavrida | ( 17h 58m 58.94s , +25d 50m 33.97s) |   C |   180 | 14.3 |  Coadd 
     280 | 2019-05-17 19:34:24 |   MASTER-Kislovodsk | ( 18h  2m 43.17s , +25d 12m 05.69s) |  P- |    50 | 17.4 |        
     280 | 2019-05-17 19:34:24 |   MASTER-Kislovodsk | ( 18h  2m 48.39s , +24d 44m 16.24s) |  P| |    50 | 17.3 |        
     284 | 2019-05-17 19:34:29 |      MASTER-Tavrida | ( 18h  0m 02.21s , +25d 53m 18.51s) |   C |    50 | 13.4 |        
     284 | 2019-05-17 19:34:29 |      MASTER-Tavrida | ( 17h 58m 58.94s , +25d 50m 33.93s) |   C |    50 | 13.7 |        
     363 | 2019-05-17 19:35:38 |   MASTER-Kislovodsk | ( 18h  2m 43.06s , +25d 12m 08.17s) |  P- |    70 | 17.6 |        
     364 | 2019-05-17 19:35:38 |   MASTER-Kislovodsk | ( 18h  2m 48.48s , +24d 44m 19.26s) |  P| |    70 | 17.5 |        
     463 | 2019-05-17 19:37:12 |   MASTER-Kislovodsk | ( 18h  2m 42.91s , +25d 12m 10.49s) |  P- |    80 | 17.6 |        
     463 | 2019-05-17 19:37:12 |   MASTER-Kislovodsk | ( 18h  2m 48.56s , +24d 44m 22.06s) |  P| |    80 | 17.7 |        
     476 | 2019-05-17 19:37:21 |      MASTER-Tavrida | ( 17h 58m 58.90s , +25d 50m 35.44s) |   C |    90 | 14.6 |        
     477 | 2019-05-17 19:37:21 |      MASTER-Tavrida | ( 18h  0m 02.16s , +25d 53m 19.88s) |   C |    90 | 14.6 |        
     632 | 2019-05-17 19:37:21 |      MASTER-Tavrida | ( 18h  0m 02.16s , +25d 53m 19.99s) |   C |   400 | 15.2 |  Coadd 
     603 | 2019-05-17 19:39:17 |      MASTER-Tavrida | ( 17h 58m 58.90s , +25d 50m 36.01s) |   C |   110 | 13.7 |        
     758 | 2019-05-17 19:39:17 |      MASTER-Tavrida | ( 17h 58m 58.90s , +25d 50m 35.99s) |   C |   420 | 15.1 |  Coadd 
     755 | 2019-05-17 19:41:34 |      MASTER-Tavrida | ( 18h  0m 02.13s , +25d 53m 20.83s) |   C |   140 | 15.6 |        
     755 | 2019-05-17 19:41:35 |      MASTER-Tavrida | ( 17h 58m 58.92s , +25d 50m 36.19s) |   C |   140 | 15.5 |        
     936 | 2019-05-17 19:44:21 |      MASTER-Tavrida | ( 17h 58m 58.94s , +25d 50m 36.49s) |   C |   170 | 14.2 |        
     936 | 2019-05-17 19:44:21 |      MASTER-Tavrida | ( 18h  0m 02.15s , +25d 53m 20.87s) |   C |   170 | 14.0 |        
    1138 | 2019-05-17 19:47:38 |      MASTER-Tavrida | ( 17h 58m 58.89s , +25d 50m 37.68s) |   C |   180 | 14.3 |        
    1318 | 2019-05-17 19:47:38 |      MASTER-Tavrida | ( 17h 58m 58.89s , +25d 50m 37.75s) |   C |   540 | 14.7 |  Coadd 
    1138 | 2019-05-17 19:47:38 |      MASTER-Tavrida | ( 18h  0m 01.98s , +25d 53m 21.87s) |   C |   180 | 14.6 |        
    1346 | 2019-05-17 19:51:05 |      MASTER-Tavrida | ( 18h  0m 01.91s , +25d 53m 22.58s) |   C |   180 | 14.5 |        
    1346 | 2019-05-17 19:51:06 |      MASTER-Tavrida | ( 17h 58m 58.90s , +25d 50m 38.31s) |   C |   180 | 14.2 |        
    1552 | 2019-05-17 19:54:32 |      MASTER-Tavrida | ( 18h  0m 01.79s , +25d 53m 23.69s) |   C |   180 | 14.6 |        
    1552 | 2019-05-17 19:54:32 |      MASTER-Tavrida | ( 17h 58m 58.90s , +25d 50m 39.55s) |   C |   180 | 14.6 |        
    1760 | 2019-05-17 19:57:59 |      MASTER-Tavrida | ( 18h  0m 01.71s , +25d 53m 24.03s) |   C |   180 | 14.6 |        
    1760 | 2019-05-17 19:57:59 |      MASTER-Tavrida | ( 17h 58m 58.89s , +25d 50m 39.97s) |   C |   180 | 14.3 |        
Filter C is a clear (unfiltred) band. 


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