[vsnet-grb-info 24434] Fermi trigger No 598648473: Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  26533
SUBJECT: Fermi  trigger No 598648473: Global MASTER-Net observations report 
DATE:    19/12/21 19:30:30 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov at xray.sai.msu.ru>

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-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB191221.80 (trigger No 598648473,02h 43m 19.20s , -43d 02m 24.0s, R=5.86) errorbox  22 sec after notice time and 66 sec after trigger time at 2019-12-21 19:15:35 UT, with upper limit up to  19.8 mag. Observations started at twilight.  The observations began at zenith distance = 13 deg. The sun  altitude  is -16.6 deg. 

MASTER-IAC robotic telescope  located in Spain (IAC Teide Observatory) started inspect of the Fermi GRB191221.80 errorbox  54 sec after notice time and 99 sec after trigger time at 2019-12-21 19:16:07 UT, with upper limit up to  16.9 mag. Observations started at twilight.  The observations began at zenith distance = 80 deg. The sun  altitude  is -13.9 deg. 

The galactic latitude b = -62 deg., longitude l = 255 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1234864

We obtain a following upper limits.  

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

      71 | 2019-12-21 19:15:35 |         MASTER-SAAO | (02h 30m 16.25s , -44d 47m 56.6s) |   C |    10 | 17.7 |        
     108 | 2019-12-21 19:16:06 |         MASTER-SAAO | (02h 30m 06.26s , -44d 48m 28.3s) |   C |    20 | 18.4 |        
     104 | 2019-12-21 19:16:07 |          MASTER-IAC | (02h 33m 57.44s , -44d 52m 10.8s) |  P- |    10 | 15.3 |        
     104 | 2019-12-21 19:16:07 |          MASTER-IAC | (02h 34m 46.00s , -44d 55m 24.8s) |  P| |    10 | 15.4 |        
     154 | 2019-12-21 19:16:47 |         MASTER-SAAO | (02h 30m 02.65s , -44d 47m 17.3s) |   C |    30 | 18.8 |        
     187 | 2019-12-21 19:17:25 |          MASTER-IAC | (02h 34m 46.31s , -44d 56m 20.0s) |  P| |    20 | 15.9 |        
     187 | 2019-12-21 19:17:25 |          MASTER-IAC | (02h 33m 58.02s , -44d 53m 06.2s) |  P- |    20 | 15.7 |        
     210 | 2019-12-21 19:17:38 |         MASTER-SAAO | (02h 30m 02.74s , -44d 48m 29.8s) |   C |    40 | 19.3 |        
     276 | 2019-12-21 19:18:39 |         MASTER-SAAO | (02h 30m 05.99s , -44d 47m 18.1s) |   C |    50 | 19.5 |        
     276 | 2019-12-21 19:18:44 |          MASTER-IAC | (02h 34m 01.93s , -44d 51m 32.8s) |  P- |    40 | 16.3 |        
     276 | 2019-12-21 19:18:44 |          MASTER-IAC | (02h 34m 50.15s , -44d 54m 46.0s) |  P| |    40 | 16.6 |        
     352 | 2019-12-21 19:19:51 |         MASTER-SAAO | (02h 30m 00.86s , -44d 47m 58.2s) |   C |    60 | 19.4 |        
     387 | 2019-12-21 19:20:26 |          MASTER-IAC | (02h 33m 54.99s , -44d 52m 21.1s) |  P- |    60 | 16.6 |        
     387 | 2019-12-21 19:20:26 |          MASTER-IAC | (02h 34m 43.16s , -44d 55m 34.3s) |  P| |    60 | 16.9 |        
     648 | 2019-12-21 19:24:17 |         MASTER-SAAO | (02h 38m 15.37s , -42d 59m 11.9s) |   C |   120 | 19.8 |        
Filter C is a clear (unfiltred) band. 


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