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GCN Circular 34216

Subject
Fermi GRB 230713A: Global MASTER-Net observations report
Date
2023-07-14T19:03:16Z (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, 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-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB 230713A ( Fermi GBM team, GCN 34214Loading...
 
 ) errorbox  67003 sec after notice time and 67036 sec after trigger time at 2023-07-14 18:36:22 UT, with upper limit up to  16.7 mag. Observations started at twilight.  The observations began at zenith distance = 72 deg. The sun  altitude  is -11.0 deg. 

The galactic latitude b = 33 deg., longitude l = 177 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2239056

We obtain a following upper limits.  

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

   67127 | 2023-07-14 18:36:22 |      MASTER-Tavrida | (08h 33m 27.83s , +48d 28m 54.8s) |   C |   180 | 16.0 |        
   67321 | 2023-07-14 18:39:36 |      MASTER-Tavrida | (08h 03m 26.04s , +46d 34m 53.8s) |   C |   180 | 15.2 |        
   67514 | 2023-07-14 18:42:49 |      MASTER-Tavrida | (08h 14m 58.75s , +46d 34m 49.7s) |   C |   180 | 15.7 |        
   67706 | 2023-07-14 18:46:02 |      MASTER-Tavrida | (08h 21m 20.69s , +48d 29m 25.6s) |   C |   180 | 16.5 |        
   67899 | 2023-07-14 18:49:14 |      MASTER-Tavrida | (08h 33m 32.63s , +48d 29m 03.2s) |   C |   180 | 16.7 |        
   68091 | 2023-07-14 18:52:26 |      MASTER-Tavrida | (08h 25m 36.83s , +46d 34m 32.3s) |   C |   180 | 16.6 |        
Filter C is a clear (unfiltred) band. 


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