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GCN Circular 32515

Subject
Fermi GRB 220902A: Global MASTER-Net observations report
Date
2022-09-02T12:30:13Z (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-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 GRB 220902A ( Fermi GBM team, GCN 32514) errorbox  2349 sec after notice time and 2355 sec after trigger time at 2022-09-02 11:09:15 UT, with upper limit up to  17.5 mag. Observations started at twilight.  The observations began at zenith distance = 68 deg. The sun  altitude  is -9.2 deg. 

The galactic latitude b = -20 deg., longitude l = 138 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2076127

We obtain a following upper limits.  

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

    2445 | 2022-09-02 11:09:15 |         MASTER-Amur | (01h 44m 16.57s , +43d 33m 10.9s) |   C |   180 | 15.2 |        
    2586 | 2022-09-02 11:12:36 |         MASTER-Amur | (01h 41m 55.38s , +42d 56m 13.2s) |   C |    60 | 15.2 |        
    2665 | 2022-09-02 11:13:55 |         MASTER-Amur | (01h 52m 57.09s , +42d 56m 40.7s) |   C |    60 | 15.3 |        
    2745 | 2022-09-02 11:15:15 |         MASTER-Amur | (02h 06m 31.37s , +44d 51m 20.2s) |   C |    60 | 15.1 |        
    2825 | 2022-09-02 11:16:35 |         MASTER-Amur | (02h 17m 51.30s , +44d 52m 57.7s) |   C |    60 | 15.1 |        
    2905 | 2022-09-02 11:17:54 |         MASTER-Amur | (02h 02m 41.77s , +42d 58m 40.8s) |   C |    60 | 15.4 |        
    2984 | 2022-09-02 11:19:14 |         MASTER-Amur | (02h 13m 43.67s , +42d 57m 58.7s) |   C |    60 | 15.3 |        
    3064 | 2022-09-02 11:20:34 |         MASTER-Amur | (01h 39m 11.33s , +41d 02m 27.1s) |   C |    60 | 15.6 |        
    3144 | 2022-09-02 11:21:54 |         MASTER-Amur | (01h 49m 45.27s , +41d 03m 49.1s) |   C |    60 | 15.7 |        
    3225 | 2022-09-02 11:23:15 |         MASTER-Amur | (01h 36m 36.70s , +39d 09m 25.8s) |   C |    60 | 15.8 |        
    3365 | 2022-09-02 11:24:35 |         MASTER-Amur | (01h 40m 08.32s , +43d 30m 33.6s) |   C |   180 | 16.7 |        
    3505 | 2022-09-02 11:27:55 |         MASTER-Amur | (01h 46m 49.98s , +39d 09m 40.3s) |   C |    60 | 16.1 |        
    3584 | 2022-09-02 11:29:14 |         MASTER-Amur | (01h 42m 00.61s , +42d 56m 27.1s) |   C |    60 | 16.4 |        
    3664 | 2022-09-02 11:30:34 |         MASTER-Amur | (01h 52m 50.69s , +42d 55m 44.8s) |   C |    60 | 16.3 |        
    3744 | 2022-09-02 11:31:54 |         MASTER-Amur | (02h 06m 33.07s , +44d 50m 11.1s) |   C |    60 | 16.2 |        
    3824 | 2022-09-02 11:33:14 |         MASTER-Amur | (02h 17m 47.58s , +44d 51m 57.4s) |   C |    60 | 16.1 |        
    3904 | 2022-09-02 11:34:33 |         MASTER-Amur | (02h 02m 43.57s , +42d 56m 22.7s) |   C |    60 | 16.3 |        
    3983 | 2022-09-02 11:35:53 |         MASTER-Amur | (02h 13m 43.23s , +42d 57m 44.0s) |   C |    60 | 16.3 |        
    4063 | 2022-09-02 11:37:13 |         MASTER-Amur | (01h 39m 05.60s , +41d 02m 13.1s) |   C |    60 | 16.6 |        
    4143 | 2022-09-02 11:38:33 |         MASTER-Amur | (01h 49m 42.47s , +41d 03m 30.2s) |   C |    60 | 16.6 |        
    4222 | 2022-09-02 11:39:52 |         MASTER-Amur | (01h 36m 37.15s , +39d 08m 08.4s) |   C |    60 | 16.6 |        
    4302 | 2022-09-02 11:41:12 |         MASTER-Amur | (01h 59m 21.61s , +41d 01m 58.4s) |   C |    60 | 16.4 |        
    4442 | 2022-09-02 11:42:31 |         MASTER-Amur | (01h 40m 12.56s , +43d 31m 12.3s) |   C |   180 | 17.5 |        
    4581 | 2022-09-02 11:45:51 |         MASTER-Amur | (02h 09m 54.56s , +41d 02m 19.1s) |   C |    60 | 16.5 |        
    4661 | 2022-09-02 11:47:11 |         MASTER-Amur | (01h 46m 56.97s , +39d 08m 53.8s) |   C |    60 | 16.9 |        
    4741 | 2022-09-02 11:48:31 |         MASTER-Amur | (01h 41m 53.91s , +42d 56m 07.5s) |   C |    60 | 17.0 |        
    4821 | 2022-09-02 11:49:51 |         MASTER-Amur | (01h 52m 49.68s , +42d 57m 25.8s) |   C |    60 | 17.0 |        
    4901 | 2022-09-02 11:51:11 |         MASTER-Amur | (02h 06m 33.42s , +44d 50m 46.8s) |   C |    60 | 16.8 |        
    4981 | 2022-09-02 11:52:31 |         MASTER-Amur | (02h 17m 46.42s , +44d 50m 04.4s) |   C |    60 | 16.8 |        
    5060 | 2022-09-02 11:53:50 |         MASTER-Amur | (02h 02m 47.69s , +42d 56m 05.2s) |   C |    60 | 16.9 |        
    5140 | 2022-09-02 11:55:10 |         MASTER-Amur | (02h 13m 40.61s , +42d 57m 50.2s) |   C |    60 | 16.8 |        
    5220 | 2022-09-02 11:56:30 |         MASTER-Amur | (01h 39m 07.95s , +41d 01m 13.1s) |   C |    60 | 17.2 |        
    5324 | 2022-09-02 11:58:14 |         MASTER-Amur | (01h 49m 48.77s , +41d 02m 55.0s) |   C |    60 | 17.1 |        
    5407 | 2022-09-02 11:59:37 |         MASTER-Amur | (01h 36m 32.49s , +39d 07m 50.2s) |   C |    60 | 17.1 |        
    5487 | 2022-09-02 12:00:57 |         MASTER-Amur | (01h 59m 15.72s , +41d 03m 24.2s) |   C |    60 | 16.8 |        
    5570 | 2022-09-02 12:02:20 |         MASTER-Amur | (02h 09m 58.65s , +41d 02m 40.3s) |   C |    60 | 16.8 |        
    5650 | 2022-09-02 12:03:40 |         MASTER-Amur | (01h 46m 50.38s , +39d 07m 02.7s) |   C |    60 | 17.1 |        
    5730 | 2022-09-02 12:04:59 |         MASTER-Amur | (01h 56m 11.23s , +39d 09m 06.2s) |   C |    60 | 17.0 |        
    5809 | 2022-09-02 12:06:19 |         MASTER-Amur | (02h 06m 30.18s , +39d 07m 43.9s) |   C |    60 | 16.9 |        
    5890 | 2022-09-02 12:07:40 |         MASTER-Amur | (02h 19m 25.62s , +41d 02m 50.5s) |   C |    60 | 16.7 |        
    5969 | 2022-09-02 12:08:59 |         MASTER-Amur | (02h 30m 01.63s , +41d 04m 07.8s) |   C |    60 | 16.6 |        
    6049 | 2022-09-02 12:10:19 |         MASTER-Amur | (02h 15m 45.45s , +39d 07m 43.5s) |   C |    60 | 16.7 |        
    6129 | 2022-09-02 12:11:39 |         MASTER-Amur | (02h 26m 10.46s , +39d 08m 03.5s) |   C |    60 | 16.6 |        
    6209 | 2022-09-02 12:12:59 |         MASTER-Amur | (01h 53m 21.86s , +37d 13m 23.8s) |   C |    60 | 17.1 |        
    6289 | 2022-09-02 12:14:19 |         MASTER-Amur | (02h 03m 28.74s , +37d 15m 05.9s) |   C |    60 | 17.1 |        
    6369 | 2022-09-02 12:15:39 |         MASTER-Amur | (02h 12m 25.65s , +37d 15m 32.9s) |   C |    60 | 17.0 |        
    6448 | 2022-09-02 12:16:58 |         MASTER-Amur | (02h 22m 33.66s , +37d 14m 49.5s) |   C |    60 | 16.8 |        
    6528 | 2022-09-02 12:18:18 |         MASTER-Amur | (01h 59m 16.49s , +41d 01m 06.2s) |   C |    60 | 17.1 |        
    6608 | 2022-09-02 12:19:38 |         MASTER-Amur | (02h 09m 58.36s , +41d 01m 51.7s) |   C |    60 | 17.0 |        
    6690 | 2022-09-02 12:21:00 |         MASTER-Amur | (01h 56m 11.94s , +39d 08m 57.2s) |   C |    60 | 17.1 |        
    6770 | 2022-09-02 12:22:19 |         MASTER-Amur | (02h 06m 30.87s , +39d 07m 44.1s) |   C |    60 | 17.0 |        
    6857 | 2022-09-02 12:23:47 |         MASTER-Amur | (02h 19m 31.28s , +41d 03m 31.1s) |   C |    60 | 16.9 |        
    6937 | 2022-09-02 12:25:07 |         MASTER-Amur | (02h 30m 03.21s , +41d 02m 49.4s) |   C |    60 | 16.6 |        
Filter C is a clear (unfiltred) band. 


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