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GCN Circular 33327

Subject
Fermi GRB 230215A: Global MASTER-Net observations report
Date
2023-02-15T19:30:36Z (a year 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, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov,  D.Cheryasov, Ya.Kechin
(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),

L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez 
(INAOE, Guillermo Haro Astrophysics Observatory),

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 GRB 230215A ( Fermi GBM team, GCN 33326Not found
 
 
) errorbox  14520 sec after notice time and 14555 sec after trigger time at 2023-02-15 18:43:53 UT, with upper limit up to  16.7 mag. Observations started at twilight.  The observations began at zenith distance = 79 deg. The sun  altitude  is -15.6 deg. 

The galactic latitude b = -61 deg., longitude l = 80 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2199216

We obtain a following upper limits.  

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

   14585 | 2023-02-15 18:43:53 |         MASTER-SAAO | (00h 04m 31.32s , -13d 59m 38.8s) |   C |    60 | 16.1 |        
   14677 | 2023-02-15 18:45:25 |         MASTER-SAAO | (00h 11m 40.88s , -08d 17m 17.6s) |   C |    60 | 16.7 |        
   15025 | 2023-02-15 18:51:14 |         MASTER-SAAO | (00h 11m 48.89s , -10d 12m 52.2s) |   C |    60 | 16.4 |        
Filter C is a clear (unfiltred) band. 


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