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GCN Circular 31589

Subject
Fermi trigger No 666489765: Global MASTER-Net observations report
Date
2022-02-14T00:15:17Z (2 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, 
D. Vlasenko, G.Antipov, D.Zimnukhov, V.Senik, T.Pogrosheva, E.Minkina,
A.Chasovnikov, V.Topolev, V.Grinshpun, D.Kuvshinov,  D. Cheryasov
(Lomonosov Moscow State University, SAI, Physics Department),

R. Podesta, C.Lopez, F. Podesta, C.Francile 
(Observatorio Astronomico Felix Aguilar OAFA),

R. Rebolo, M. Serra 
(The Instituto de Astrofisica de Canarias),

D. Buckley 
(South African Astronomical Observatory),

O.A. Gres, N.M. Budnev
(Irkutsk State University, API),

B.L.Carrasco, J.R.Valdes,V.Chavushyan, C.J.Martinez, V.M.Patino Alvarez,
M.L.H.Rodriguez (INAOE, OAGH)

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

A. Gabovich, V.Yurkov 
(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 GRB220214.00 (trigger No 666489765,08h 23m 40.80s , +16d 43m 12.0s, R=3.91) errorbox  40 sec after notice time and 69 sec after trigger time at 2022-02-14 00:03:50 UT, with upper limit up to  16.4 mag. The observations began at zenith distance = 60 deg. The sun  altitude  is -41.7 deg. 

The galactic latitude b = 28 deg., longitude l = 208 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1881570

We obtain a following upper limits.  

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

      75 | 2022-02-14 00:03:50 |         MASTER-SAAO | (08h 32m 38.06s , +16d 11m 59.3s) |   C |    10 | 16.0 |        
     109 | 2022-02-14 00:04:19 |         MASTER-SAAO | (08h 32m 32.78s , +16d 11m 03.3s) |   C |    20 | 16.2 |        
     154 | 2022-02-14 00:04:59 |         MASTER-SAAO | (08h 11m 40.73s , +20d 13m 39.2s) |   C |    30 | 15.7 |        
     199 | 2022-02-14 00:04:59 |         MASTER-SAAO | (08h 11m 40.73s , +20d 13m 39.2s) |   C |   120 | 16.4 |  Coadd 
     208 | 2022-02-14 00:05:48 |         MASTER-SAAO | (08h 11m 38.53s , +20d 14m 51.2s) |   C |    40 | 15.9 |        
     273 | 2022-02-14 00:06:48 |         MASTER-SAAO | (08h 11m 38.61s , +20d 13m 34.3s) |   C |    50 | 15.9 |        
     347 | 2022-02-14 00:07:57 |         MASTER-SAAO | (08h 11m 41.58s , +20d 15m 16.5s) |   C |    60 | 15.9 |        
Filter C is a clear (unfiltred) band. 


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