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GCN Circular 36846

Subject
Fermi trigger No 742317942: Global MASTER-Net observations report
Date
2024-07-10T19:15:29Z (8 days ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
Via
legacy email
V. Lipunov, V.Kornilov, E. Gorbovskoy, K. Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, V.Senik,  D. Vlasenko,
G.Antipov, D.Zimnukhov, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D. Cheryasov, Ya.Kechin, Yu.Tselik, A. Sosnovskij
(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. Gress, N.M. Budnev, O.Ershova
(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),

V. Yurkov, A. Gabovich
(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 GRB240710.64 (trigger No 742317942,16h 03m 12.00s , -14d 00m 00.0s, R=1.62) errorbox  10932 sec after notice time and 10965 sec after trigger time at 2024-07-10 18:28:22 UT, with upper limit up to  16.8 mag. Observations started at twilight.  The observations began at zenith distance = 57 deg. The sun  altitude  is -9.6 deg. 

The galactic latitude b = 27 deg., longitude l = 358 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2526305

We obtain a following upper limits.  

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

   10995 | 2024-07-10 18:28:22 |      MASTER-Tavrida | (15h 57m 47.30s , -13d 15m 23.2s) |   C |    60 | 16.2 |        
   10995 | 2024-07-10 18:28:23 |      MASTER-Tavrida | (15h 57m 43.43s , -13d 11m 02.4s) |   C |    60 | 16.0 |        
   11070 | 2024-07-10 18:29:37 |      MASTER-Tavrida | (16h 03m 12.17s , -14d 34m 01.2s) |   C |    60 | 16.4 |        
   11070 | 2024-07-10 18:29:37 |      MASTER-Tavrida | (16h 03m 08.25s , -14d 29m 41.7s) |   C |    60 | 16.3 |        
   11146 | 2024-07-10 18:30:53 |      MASTER-Tavrida | (15h 52m 24.77s , -14d 34m 25.8s) |   C |    60 | 16.8 |        
   11146 | 2024-07-10 18:30:53 |      MASTER-Tavrida | (15h 52m 20.84s , -14d 30m 07.0s) |   C |    60 | 16.7 |        
   11221 | 2024-07-10 18:32:08 |      MASTER-Tavrida | (15h 58m 15.68s , -15d 51m 32.7s) |   C |    60 | 16.5 |        
   11221 | 2024-07-10 18:32:08 |      MASTER-Tavrida | (15h 58m 11.66s , -15d 47m 15.4s) |   C |    60 | 16.4 |        
   11297 | 2024-07-10 18:33:25 |      MASTER-Tavrida | (16h 03m 33.93s , -11d 57m 37.1s) |   C |    60 | 16.5 |        
   11298 | 2024-07-10 18:33:25 |      MASTER-Tavrida | (16h 03m 30.47s , -11d 53m 18.2s) |   C |    60 | 16.4 |        
   11374 | 2024-07-10 18:34:41 |      MASTER-Tavrida | (16h 08m 28.38s , -13d 16m 15.7s) |   C |    60 | 16.7 |        
   11374 | 2024-07-10 18:34:41 |      MASTER-Tavrida | (16h 08m 24.80s , -13d 11m 57.8s) |   C |    60 | 16.5 |        
   11451 | 2024-07-10 18:35:58 |      MASTER-Tavrida | (15h 52m 52.61s , -11d 58m 22.8s) |   C |    60 | 16.7 |        
   11451 | 2024-07-10 18:35:58 |      MASTER-Tavrida | (15h 52m 49.19s , -11d 54m 04.4s) |   C |    60 | 16.7 |        
   11604 | 2024-07-10 18:38:31 |      MASTER-Tavrida | (16h 09m 09.79s , -15d 51m 43.0s) |   C |    60 | 16.6 |        
   11604 | 2024-07-10 18:38:31 |      MASTER-Tavrida | (16h 09m 06.04s , -15d 47m 27.0s) |   C |    60 | 16.5 |        
   11680 | 2024-07-10 18:39:47 |      MASTER-Tavrida | (15h 59m 09.60s , -10d 40m 32.2s) |   C |    60 | 16.8 |        
   11680 | 2024-07-10 18:39:47 |      MASTER-Tavrida | (15h 59m 06.49s , -10d 36m 14.1s) |   C |    60 | 16.7 |        
Filter C is a clear (unfiltred) band. 


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


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