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GCN Circular 35913

Subject
Fermi trigger No 731839490: Global MASTER-Net observations report
Date
2024-03-11T20:45:48Z (9 months 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-Amur robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Blagoveshchensk State Pedagogical University) started inspect of the Fermi GRB240311.36 (trigger No 731839490,22h 18m 24.00s , +05d 37m 58.8s, R=33.28) errorbox  38228 sec after notice time and 38263 sec after trigger time at 2024-03-11 19:22:28 UT, with upper limit up to  18.0 mag. The observations began at zenith distance = 68 deg. The sun  altitude  is -24.2 deg. 

The galactic latitude b = -41 deg., longitude l = 69 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2396720

We obtain a following upper limits.  

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

   38293 | 2024-03-11 19:22:28 |         MASTER-Amur | (19h 59m 58.79s , +14d 32m 34.9s) |   C |    60 | 17.7 |        
   38373 | 2024-03-11 19:23:47 |         MASTER-Amur | (20h 18m 24.64s , +16d 29m 01.3s) |   C |    60 | 17.8 |        
   38452 | 2024-03-11 19:25:07 |         MASTER-Amur | (20h 26m 46.01s , +16d 27m 41.8s) |   C |    60 | 17.8 |        
   38612 | 2024-03-11 19:27:47 |         MASTER-Amur | (20h 07m 24.85s , +14d 34m 35.0s) |   C |    60 | 17.9 |        
   38692 | 2024-03-11 19:29:07 |         MASTER-Amur | (20h 15m 47.37s , +14d 33m 57.0s) |   C |    60 | 17.9 |        
   39107 | 2024-03-11 19:36:02 |         MASTER-Amur | (20h 23m 06.76s , +14d 33m 50.8s) |   C |    60 | 17.6 |        
   39388 | 2024-03-11 19:40:43 |         MASTER-Amur | (20h 31m 29.25s , +14d 34m 14.1s) |   C |    60 | 17.8 |        
   39479 | 2024-03-11 19:42:13 |         MASTER-Amur | (19h 59m 57.86s , +14d 31m 24.7s) |   C |    60 | 17.8 |        
   39558 | 2024-03-11 19:43:33 |         MASTER-Amur | (20h 18m 28.20s , +16d 26m 34.8s) |   C |    60 | 17.8 |        
   39638 | 2024-03-11 19:44:53 |         MASTER-Amur | (20h 26m 45.20s , +16d 28m 09.5s) |   C |    60 | 17.9 |        
   39798 | 2024-03-11 19:47:32 |         MASTER-Amur | (20h 07m 29.07s , +14d 33m 26.0s) |   C |    60 | 17.9 |        
   39877 | 2024-03-11 19:48:52 |         MASTER-Amur | (20h 15m 39.60s , +14d 32m 50.9s) |   C |    60 | 17.6 |        
   40117 | 2024-03-11 19:52:51 |         MASTER-Amur | (20h 23m 05.99s , +14d 32m 01.3s) |   C |    60 | 17.7 |        
   40197 | 2024-03-11 19:54:11 |         MASTER-Amur | (20h 29m 10.05s , +12d 39m 53.0s) |   C |    60 | 17.9 |        
   40276 | 2024-03-11 19:55:31 |         MASTER-Amur | (20h 37m 22.40s , +12d 38m 52.7s) |   C |    60 | 18.0 |        
   40357 | 2024-03-11 19:56:51 |         MASTER-Amur | (20h 31m 30.06s , +14d 33m 56.2s) |   C |    60 | 18.0 |        
   40545 | 2024-03-11 20:00:00 |         MASTER-Amur | (19h 59m 57.42s , +14d 32m 13.2s) |   C |    60 | 17.8 |        
   40631 | 2024-03-11 20:01:26 |         MASTER-Amur | (20h 18m 27.01s , +16d 26m 08.0s) |   C |    60 | 17.7 |        
   40712 | 2024-03-11 20:02:46 |         MASTER-Amur | (20h 26m 40.19s , +16d 25m 29.8s) |   C |    60 | 17.7 |        
   40792 | 2024-03-11 20:04:06 |         MASTER-Amur | (20h 07m 29.74s , +14d 30m 28.8s) |   C |    60 | 17.7 |        
   40872 | 2024-03-11 20:05:26 |         MASTER-Amur | (20h 15m 42.70s , +14d 32m 44.1s) |   C |    60 | 17.6 |        
   40952 | 2024-03-11 20:06:46 |         MASTER-Amur | (20h 36m 29.07s , +10d 45m 47.6s) |   C |    60 | 17.8 |        
   41032 | 2024-03-11 20:08:06 |         MASTER-Amur | (20h 44m 31.53s , +10d 45m 11.2s) |   C |    60 | 17.8 |        
   41111 | 2024-03-11 20:09:26 |         MASTER-Amur | (20h 23m 05.57s , +14d 32m 56.8s) |   C |    60 | 17.7 |        
Filter C is a clear (unfiltred) band. 


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