[vsnet-grb-info 33796] Fermi GRB 240317B: Global MASTER-Net observations report

17 Mar 2024

      TITLE:   GCN CIRCULAR
NUMBER:  35943
SUBJECT: Fermi GRB 240317B: Global MASTER-Net observations report
DATE:    24/03/17 13:31:09 GMT
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, 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 GRB 240317B ( Fermi GBM team, GCN 35941) errorbox  465 sec after notice time and 497 sec after trigger time at 2024-03-17 11:02:41 UT, with upper limit up to  17.7 mag. Observations started at twilight.  The observations began at zenith distance = 69 deg. The sun  altitude  is -14.2 deg. 

MASTER-Tunka robotic telescope  located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the Fermi GRB 240317B errorbox  5026 sec after notice time and 5058 sec after trigger time at 2024-03-17 12:18:42 UT, with upper limit up to  14.5 mag. Observations started at twilight.  The observations began at zenith distance = 78 deg. The sun  altitude  is -10.9 deg. 

The galactic latitude b = 25 deg., longitude l = 78 deg.

Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2400679

We obtain a following upper limits.  

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

     527 | 2024-03-17 11:02:41 |         MASTER-Amur | (18h 08m 33.84s , +60d 12m 29.5s) |   C |    60 | 17.0 |        
     607 | 2024-03-17 11:04:01 |         MASTER-Amur | (18h 24m 41.82s , +60d 10m 12.2s) |   C |    60 | 17.1 |        
    5088 | 2024-03-17 12:18:42 |        MASTER-Tunka | (18h 40m 58.76s , +51d 03m 11.4s) |   C |    60 | 13.3 |        
    5247 | 2024-03-17 12:21:20 |        MASTER-Tunka | (18h 38m 56.08s , +52d 56m 32.7s) |   C |    60 | 13.1 |        
    5326 | 2024-03-17 12:22:39 |        MASTER-Tunka | (18h 11m 57.74s , +54d 49m 55.0s) |   C |    60 | 13.6 |        
    5405 | 2024-03-17 12:23:59 |        MASTER-Tunka | (18h 25m 29.46s , +54d 49m 03.5s) |   C |    60 | 13.1 |        
    5484 | 2024-03-17 12:25:18 |        MASTER-Tunka | (18h 44m 12.61s , +49d 08m 38.9s) |   C |    60 | 12.8 |        
    5723 | 2024-03-17 12:29:16 |        MASTER-Tunka | (18h 10m 46.74s , +56d 42m 59.1s) |   C |    60 | 13.9 |        
    5809 | 2024-03-17 12:30:42 |        MASTER-Tunka | (18h 25m 14.42s , +56d 44m 15.4s) |   C |    60 | 13.9 |        
    5888 | 2024-03-17 12:32:02 |        MASTER-Tunka | (18h 37m 57.53s , +54d 50m 37.3s) |   C |    60 | 13.9 |        
    5967 | 2024-03-17 12:33:21 |        MASTER-Tunka | (18h 51m 38.66s , +54d 48m 51.4s) |   C |    60 | 13.8 |        
    6093 | 2024-03-17 12:35:27 |        MASTER-Tunka | (17h 32m 14.76s , +47d 49m 22.3s) |   C |    60 | 12.0 |        
    6173 | 2024-03-17 12:36:46 |        MASTER-Tunka | (17h 45m 53.62s , +51d 38m 34.6s) |   C |    60 | 13.6 |        
    6252 | 2024-03-17 12:38:05 |        MASTER-Tunka | (17h 58m 51.51s , +51d 37m 38.5s) |   C |    60 | 13.5 |        
    6331 | 2024-03-17 12:39:25 |        MASTER-Tunka | (18h 08m 20.83s , +53d 30m 31.9s) |   C |    60 | 13.5 |        
    6411 | 2024-03-17 12:40:44 |        MASTER-Tunka | (18h 22m 07.75s , +53d 30m 45.1s) |   C |    60 | 13.3 |        
    6490 | 2024-03-17 12:42:03 |        MASTER-Tunka | (17h 42m 29.98s , +53d 33m 01.3s) |   C |    60 | 13.7 |        
    6569 | 2024-03-17 12:43:22 |        MASTER-Tunka | (17h 56m 03.03s , +53d 31m 31.5s) |   C |    60 | 14.2 |        
    6648 | 2024-03-17 12:44:42 |        MASTER-Tunka | (18h 07m 12.93s , +55d 25m 21.8s) |   C |    60 | 13.5 |        
    6727 | 2024-03-17 12:46:01 |        MASTER-Tunka | (18h 21m 30.03s , +55d 25m 53.4s) |   C |    60 | 13.9 |        
    6807 | 2024-03-17 12:47:20 |        MASTER-Tunka | (18h 10m 40.47s , +51d 38m 42.8s) |   C |    60 | 12.5 |        
    6886 | 2024-03-17 12:48:40 |        MASTER-Tunka | (18h 34m 27.86s , +53d 30m 56.9s) |   C |    60 | 13.1 |        
    7045 | 2024-03-17 12:51:19 |        MASTER-Tunka | (18h 23m 52.08s , +51d 35m 59.6s) |   C |    60 | 12.9 |        
    7125 | 2024-03-17 12:52:38 |        MASTER-Tunka | (17h 45m 52.05s , +51d 36m 29.1s) |   C |    60 | 13.2 |        
    7283 | 2024-03-17 12:55:16 |        MASTER-Tunka | (18h 08m 31.13s , +53d 32m 30.1s) |   C |    60 | 12.0 |        
    7362 | 2024-03-17 12:56:36 |        MASTER-Tunka | (18h 22m 06.54s , +53d 30m 53.0s) |   C |    60 | 12.2 |        
    7442 | 2024-03-17 12:57:55 |        MASTER-Tunka | (17h 42m 28.24s , +53d 30m 30.9s) |   C |    60 | 13.5 |        
    7521 | 2024-03-17 12:59:15 |        MASTER-Tunka | (17h 56m 14.41s , +53d 31m 12.9s) |   C |    60 | 12.3 |        
    7600 | 2024-03-17 13:00:34 |        MASTER-Tunka | (18h 07m 15.33s , +55d 25m 54.0s) |   C |    60 | 13.1 |        
    7680 | 2024-03-17 13:01:53 |        MASTER-Tunka | (18h 21m 35.22s , +55d 24m 10.8s) |   C |    60 | 13.4 |        
    7838 | 2024-03-17 13:04:32 |        MASTER-Tunka | (18h 34m 26.84s , +53d 30m 37.4s) |   C |    60 | 12.8 |        
    7997 | 2024-03-17 13:07:11 |        MASTER-Tunka | (18h 01m 01.79s , +45d 53m 48.3s) |   C |    60 | 13.1 |        
    8116 | 2024-03-17 13:09:09 |         MASTER-Amur | (18h 08m 32.38s , +60d 15m 05.1s) |   C |    60 | 17.6 |        
    8168 | 2024-03-17 13:10:01 |        MASTER-Tunka | (17h 38m 59.01s , +45d 54m 53.6s) |   C |    60 | 12.7 |        
    8195 | 2024-03-17 13:10:29 |         MASTER-Amur | (18h 24m 43.45s , +60d 15m 58.2s) |   C |    60 | 17.7 |        
    8334 | 2024-03-17 13:12:48 |        MASTER-Tunka | (17h 26m 26.99s , +49d 44m 57.1s) |   C |    60 | 13.3 |        
    8414 | 2024-03-17 13:14:07 |        MASTER-Tunka | (17h 39m 06.53s , +49d 43m 35.7s) |   C |    60 | 13.6 |        
    8493 | 2024-03-17 13:15:26 |        MASTER-Tunka | (18h 23m 15.91s , +45d 53m 39.0s) |   C |    60 | 13.4 |        
    8572 | 2024-03-17 13:16:46 |        MASTER-Tunka | (17h 40m 10.09s , +55d 26m 08.0s) |   C |    60 | 13.2 |        
    8651 | 2024-03-17 13:18:05 |        MASTER-Tunka | (17h 54m 24.83s , +55d 25m 12.8s) |   C |    60 | 13.1 |        
    8730 | 2024-03-17 13:19:24 |        MASTER-Tunka | (17h 46m 22.65s , +44d 01m 00.9s) |   C |    60 | 14.5 |        
    8889 | 2024-03-17 13:22:03 |        MASTER-Tunka | (17h 21m 14.66s , +51d 37m 48.6s) |   C |    60 | 14.5 |        
    8968 | 2024-03-17 13:23:22 |        MASTER-Tunka | (17h 34m 22.92s , +51d 38m 11.6s) |   C |    60 | 13.6 |        
Filter C is a clear (unfiltred) band. 

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

View this GCN Circular online at https://gcn.nasa.gov/circulars/35943.
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