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GCN Circular 37371

Subject
Fermi trigger No 746923430: Global MASTER-Net observations report
Date
2024-09-02T07:30:38Z (5 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-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 GRB240901.95 (trigger No 746923430,22h 35m 00.00s , +65d 00m 00.0s, R=25.78) errorbox  4838 sec after notice time and 4869 sec after trigger time at 2024-09-02 00:04:54 UT, with upper limit up to  19.3 mag. The observations began at zenith distance = 30 deg. The sun  altitude  is -28.9 deg. 

The galactic latitude b =  6 deg., longitude l = 109 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2585018

We obtain a following upper limits.  

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

    4899 | 2024-09-02 00:04:54 |      MASTER-Tavrida | (22h 33m 16.31s , +64d 26m 38.8s) |   C |    60 | 18.3 |        
    4899 | 2024-09-02 00:04:55 |      MASTER-Tavrida | (22h 33m 14.24s , +64d 23m 23.1s) |   C |    60 | 18.9 |        
    5072 | 2024-09-02 00:07:47 |      MASTER-Tavrida | (22h 51m 48.28s , +64d 26m 48.7s) |   C |    60 | 18.5 |        
    5072 | 2024-09-02 00:07:47 |      MASTER-Tavrida | (22h 51m 44.97s , +64d 23m 28.0s) |   C |    60 | 19.0 |        
    5147 | 2024-09-02 00:09:02 |      MASTER-Tavrida | (22h 25m 09.36s , +65d 45m 35.3s) |   C |    60 | 18.5 |        
    5147 | 2024-09-02 00:09:02 |      MASTER-Tavrida | (22h 25m 06.50s , +65d 42m 12.9s) |   C |    60 | 18.9 |        
    5473 | 2024-09-02 00:14:28 |      MASTER-Tavrida | (22h 44m 46.12s , +65d 44m 42.6s) |   C |    60 | 18.4 |        
    5473 | 2024-09-02 00:14:28 |      MASTER-Tavrida | (22h 44m 43.17s , +65d 41m 24.6s) |   C |    60 | 19.0 |        
    5550 | 2024-09-02 00:15:45 |      MASTER-Tavrida | (22h 09m 07.99s , +64d 26m 41.7s) |   C |    60 | 18.8 |        
    5550 | 2024-09-02 00:15:45 |      MASTER-Tavrida | (22h 09m 05.48s , +64d 23m 21.0s) |   C |    60 | 19.1 |        
    5899 | 2024-09-02 00:21:34 |      MASTER-Tavrida | (22h 27m 46.30s , +64d 28m 24.4s) |   C |    60 | 18.7 |        
    5899 | 2024-09-02 00:21:34 |      MASTER-Tavrida | (22h 27m 43.03s , +64d 23m 53.8s) |   C |    60 | 19.0 |        
    6225 | 2024-09-02 00:27:00 |      MASTER-Tavrida | (22h 33m 18.17s , +64d 26m 16.6s) |   C |    60 | 18.8 |        
    6225 | 2024-09-02 00:27:01 |      MASTER-Tavrida | (22h 33m 15.74s , +64d 22m 56.7s) |   C |    60 | 19.0 |        
    6398 | 2024-09-02 00:29:53 |      MASTER-Tavrida | (22h 51m 49.30s , +64d 27m 08.8s) |   C |    60 | 18.8 |        
    6398 | 2024-09-02 00:29:53 |      MASTER-Tavrida | (22h 51m 46.35s , +64d 23m 48.3s) |   C |    60 | 19.0 |        
    6473 | 2024-09-02 00:31:08 |      MASTER-Tavrida | (22h 25m 14.99s , +65d 46m 22.4s) |   C |    60 | 18.9 |        
    6473 | 2024-09-02 00:31:08 |      MASTER-Tavrida | (22h 25m 12.39s , +65d 42m 56.2s) |   C |    60 | 18.9 |        
    6799 | 2024-09-02 00:36:35 |      MASTER-Tavrida | (22h 44m 48.41s , +65d 45m 43.1s) |   C |    60 | 19.0 |        
    6799 | 2024-09-02 00:36:35 |      MASTER-Tavrida | (22h 44m 46.47s , +65d 42m 24.6s) |   C |    60 | 18.9 |        
    6875 | 2024-09-02 00:37:51 |      MASTER-Tavrida | (22h 09m 12.45s , +64d 26m 15.9s) |   C |    60 | 19.2 |        
    6875 | 2024-09-02 00:37:51 |      MASTER-Tavrida | (22h 09m 10.92s , +64d 22m 55.2s) |   C |    60 | 19.1 |        
    6950 | 2024-09-02 00:39:05 |      MASTER-Tavrida | (22h 27m 49.80s , +64d 27m 50.5s) |   C |    60 | 19.1 |        
    6950 | 2024-09-02 00:39:05 |      MASTER-Tavrida | (22h 27m 48.30s , +64d 24m 29.7s) |   C |    60 | 19.0 |        
    7024 | 2024-09-02 00:40:20 |      MASTER-Tavrida | (22h 18m 11.95s , +63d 10m 04.0s) |   C |    60 | 19.0 |        
    7024 | 2024-09-02 00:40:20 |      MASTER-Tavrida | (22h 18m 10.55s , +63d 06m 42.6s) |   C |    60 | 19.0 |        
    7098 | 2024-09-02 00:41:34 |      MASTER-Tavrida | (22h 36m 02.37s , +63d 09m 00.5s) |   C |    60 | 18.8 |        
    7099 | 2024-09-02 00:41:34 |      MASTER-Tavrida | (22h 36m 00.94s , +63d 05m 39.2s) |   C |    60 | 18.8 |        
    7173 | 2024-09-02 00:42:48 |      MASTER-Tavrida | (22h 33m 17.72s , +64d 26m 00.1s) |   C |    60 | 19.0 |        
    7173 | 2024-09-02 00:42:48 |      MASTER-Tavrida | (22h 33m 16.47s , +64d 22m 38.8s) |   C |    60 | 19.0 |        
    7423 | 2024-09-02 00:46:59 |      MASTER-Tavrida | (22h 51m 57.90s , +64d 27m 33.1s) |   C |    60 | 18.9 |        
    7423 | 2024-09-02 00:46:59 |      MASTER-Tavrida | (22h 51m 56.86s , +64d 24m 13.5s) |   C |    60 | 19.0 |        
    7499 | 2024-09-02 00:48:14 |      MASTER-Tavrida | (22h 25m 18.16s , +65d 44m 56.7s) |   C |    60 | 19.0 |        
    7499 | 2024-09-02 00:48:14 |      MASTER-Tavrida | (22h 25m 17.81s , +65d 41m 40.4s) |   C |    60 | 18.9 |        
    7748 | 2024-09-02 00:52:23 |      MASTER-Tavrida | (22h 44m 52.32s , +65d 44m 03.9s) |   C |    60 | 19.0 |        
    7748 | 2024-09-02 00:52:23 |      MASTER-Tavrida | (22h 44m 53.06s , +65d 40m 47.9s) |   C |    60 | 19.0 |        
    7824 | 2024-09-02 00:53:39 |      MASTER-Tavrida | (22h 09m 14.40s , +64d 27m 43.8s) |   C |    60 | 19.3 |        
    7824 | 2024-09-02 00:53:39 |      MASTER-Tavrida | (22h 09m 15.49s , +64d 24m 31.2s) |   C |    60 | 19.1 |        
    7899 | 2024-09-02 00:54:55 |      MASTER-Tavrida | (22h 27m 48.10s , +64d 26m 05.0s) |   C |    60 | 19.2 |        
    7899 | 2024-09-02 00:54:55 |      MASTER-Tavrida | (22h 27m 49.34s , +64d 22m 39.5s) |   C |    60 | 19.0 |        
    7973 | 2024-09-02 00:56:08 |      MASTER-Tavrida | (22h 18m 20.14s , +63d 09m 16.5s) |   C |    60 | 19.2 |        
    7973 | 2024-09-02 00:56:08 |      MASTER-Tavrida | (22h 18m 21.39s , +63d 05m 50.5s) |   C |    60 | 19.1 |        
    8048 | 2024-09-02 00:57:23 |      MASTER-Tavrida | (22h 35m 57.28s , +63d 08m 39.3s) |   C |    60 | 19.1 |        
    8048 | 2024-09-02 00:57:23 |      MASTER-Tavrida | (22h 35m 58.58s , +63d 05m 15.2s) |   C |    60 | 18.9 |        
    9241 | 2024-09-02 01:17:16 |      MASTER-Tavrida | (22h 18m 17.75s , +63d 09m 21.2s) |   C |    60 | 17.7 |        
    9241 | 2024-09-02 01:17:16 |      MASTER-Tavrida | (22h 18m 20.13s , +63d 05m 45.4s) |   C |    60 | 19.0 |        
    9316 | 2024-09-02 01:18:31 |      MASTER-Tavrida | (22h 36m 07.82s , +63d 08m 14.9s) |   C |    60 | 19.3 |        
    9316 | 2024-09-02 01:18:31 |      MASTER-Tavrida | (22h 36m 10.42s , +63d 04m 56.3s) |   C |    60 | 18.8 |        
Filter C is a clear (unfiltred) band. 


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