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GCN Circular 36451

Subject
Fermi trigger No 737247400: Global MASTER-Net observations report
Date
2024-05-13T00:30:43Z (2 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-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB240512.96 (trigger No 737247400,17h 02m 43.99s , -42d 07m 59.9s, R=36.05) errorbox 34 sec after trigger time at 2024-05-12 22:57:09 UT, with upper limit up to  17.8 mag. The observations began at zenith distance = 35 deg. The sun  altitude  is -75.5 deg. 

The galactic latitude b = -1 deg., longitude l = 345 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2453982

We obtain a following upper limits.  

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

      94 | 2024-05-12 22:57:09 |         MASTER-SAAO | (16h 06m 00.59s , -66d 56m 52.3s) |   I |   120 | 17.3 |        
      94 | 2024-05-12 22:57:10 |         MASTER-SAAO | (16h 10m 43.05s , -67d 10m 46.4s) |   R |   120 | 17.6 |        
     234 | 2024-05-12 22:59:29 |         MASTER-SAAO | (16h 06m 03.27s , -66d 55m 22.9s) |   I |   120 | 17.2 |        
     234 | 2024-05-12 22:59:29 |         MASTER-SAAO | (16h 10m 46.02s , -67d 09m 17.4s) |   R |   120 | 17.5 |        
     374 | 2024-05-12 23:01:49 |         MASTER-SAAO | (16h 10m 38.91s , -67d 09m 57.4s) |   R |   120 | 17.7 |        
     374 | 2024-05-12 23:01:49 |         MASTER-SAAO | (16h 05m 55.90s , -66d 56m 03.3s) |   I |   120 | 17.4 |        
     514 | 2024-05-12 23:04:09 |         MASTER-SAAO | (16h 05m 56.04s , -66d 55m 00.8s) |   I |   120 | 17.4 |        
     514 | 2024-05-12 23:04:09 |         MASTER-SAAO | (16h 10m 38.79s , -67d 08m 55.2s) |   R |   120 | 17.7 |        
     653 | 2024-05-12 23:06:28 |         MASTER-SAAO | (16h 10m 44.93s , -67d 09m 51.9s) |   R |   120 | 17.7 |        
     653 | 2024-05-12 23:06:28 |         MASTER-SAAO | (16h 06m 02.11s , -66d 55m 58.0s) |   I |   120 | 17.4 |        
     793 | 2024-05-12 23:08:48 |         MASTER-SAAO | (16h 10m 37.97s , -67d 10m 48.3s) |   R |   120 | 17.8 |        
     793 | 2024-05-12 23:08:48 |         MASTER-SAAO | (16h 05m 54.46s , -66d 56m 54.1s) |   I |   120 | 17.4 |        
     932 | 2024-05-12 23:11:07 |         MASTER-SAAO | (16h 05m 59.45s , -66d 56m 34.2s) |   I |   120 | 17.4 |        
     932 | 2024-05-12 23:11:07 |         MASTER-SAAO | (16h 10m 42.95s , -67d 10m 28.8s) |   R |   120 | 17.7 |        
    1072 | 2024-05-12 23:13:27 |         MASTER-SAAO | (16h 10m 40.02s , -67d 09m 04.6s) |   R |   120 | 17.7 |        
    1072 | 2024-05-12 23:13:27 |         MASTER-SAAO | (16h 05m 56.70s , -66d 55m 10.4s) |   I |   120 | 17.3 |        
    1215 | 2024-05-12 23:15:50 |         MASTER-SAAO | (16h 05m 55.63s , -66d 56m 30.7s) |   I |   120 | 17.2 |        
    1215 | 2024-05-12 23:15:50 |         MASTER-SAAO | (16h 10m 39.55s , -67d 10m 24.7s) |   R |   120 | 17.6 |        
    1356 | 2024-05-12 23:18:11 |         MASTER-SAAO | (16h 05m 58.10s , -66d 55m 02.5s) |   I |   120 | 17.4 |        
    1356 | 2024-05-12 23:18:11 |         MASTER-SAAO | (16h 10m 42.20s , -67d 08m 56.7s) |   R |   120 | 17.7 |        
    1562 | 2024-05-12 23:21:37 |         MASTER-SAAO | (16h 05m 50.69s , -66d 55m 37.2s) |   I |   120 | 17.4 |        
    1710 | 2024-05-12 23:24:06 |         MASTER-SAAO | (16h 10m 35.04s , -67d 08m 28.0s) |   R |   120 | 17.8 |        
    1710 | 2024-05-12 23:24:06 |         MASTER-SAAO | (16h 05m 51.17s , -66d 54m 33.9s) |   I |   120 | 17.4 |        
    1912 | 2024-05-12 23:27:27 |         MASTER-SAAO | (16h 10m 34.99s , -67d 08m 23.2s) |   R |   120 | 17.6 |        
    1912 | 2024-05-12 23:27:27 |         MASTER-SAAO | (16h 05m 50.89s , -66d 54m 29.0s) |   I |   120 | 17.1 |        
    2053 | 2024-05-12 23:29:48 |         MASTER-SAAO | (16h 10m 39.04s , -67d 09m 19.5s) |   R |   120 | 17.8 |        
    2053 | 2024-05-12 23:29:48 |         MASTER-SAAO | (16h 05m 54.88s , -66d 55m 25.8s) |   I |   120 | 17.5 |        
    2193 | 2024-05-12 23:32:08 |         MASTER-SAAO | (16h 10m 33.20s , -67d 10m 15.8s) |   R |   120 | 17.8 |        
    2193 | 2024-05-12 23:32:08 |         MASTER-SAAO | (16h 05m 48.91s , -66d 56m 21.7s) |   I |   120 | 17.3 |        
    2332 | 2024-05-12 23:34:27 |         MASTER-SAAO | (16h 10m 39.20s , -67d 10m 01.4s) |   R |   120 | 17.8 |        
    2332 | 2024-05-12 23:34:27 |         MASTER-SAAO | (16h 05m 54.85s , -66d 56m 06.9s) |   I |   120 | 17.5 |        
    2472 | 2024-05-12 23:36:47 |         MASTER-SAAO | (16h 10m 34.16s , -67d 08m 13.2s) |   R |   120 | 17.5 |        
    2472 | 2024-05-12 23:36:47 |         MASTER-SAAO | (16h 05m 49.89s , -66d 54m 18.7s) |   I |   120 | 17.0 |        
    2612 | 2024-05-12 23:39:07 |         MASTER-SAAO | (16h 10m 33.26s , -67d 09m 51.7s) |   R |   120 | 17.6 |        
    2612 | 2024-05-12 23:39:07 |         MASTER-SAAO | (16h 05m 48.47s , -66d 55m 57.3s) |   I |   120 | 17.1 |        
    2752 | 2024-05-12 23:41:27 |         MASTER-SAAO | (16h 10m 36.02s , -67d 08m 11.3s) |   R |   120 | 17.6 |        
    2752 | 2024-05-12 23:41:27 |         MASTER-SAAO | (16h 05m 51.32s , -66d 54m 16.5s) |   I |   120 | 17.3 |        
    2891 | 2024-05-12 23:43:47 |         MASTER-SAAO | (16h 10m 31.66s , -67d 08m 59.0s) |   R |   120 | 17.5 |        
    2891 | 2024-05-12 23:43:47 |         MASTER-SAAO | (16h 05m 46.95s , -66d 55m 04.9s) |   I |   120 | 17.0 |        
    3031 | 2024-05-12 23:46:06 |         MASTER-SAAO | (16h 10m 32.69s , -67d 07m 56.0s) |   R |   120 | 17.7 |        
    3031 | 2024-05-12 23:46:06 |         MASTER-SAAO | (16h 05m 48.04s , -66d 54m 01.4s) |   I |   120 | 17.1 |        
    3171 | 2024-05-12 23:48:26 |         MASTER-SAAO | (16h 10m 39.27s , -67d 08m 52.5s) |   R |   120 | 17.7 |        
    3171 | 2024-05-12 23:48:26 |         MASTER-SAAO | (16h 05m 54.03s , -66d 54m 58.3s) |   I |   120 | 17.2 |        
    3311 | 2024-05-12 23:50:46 |         MASTER-SAAO | (16h 10m 34.26s , -67d 09m 48.5s) |   R |   120 | 17.5 |        
    3311 | 2024-05-12 23:50:46 |         MASTER-SAAO | (16h 05m 48.81s , -66d 55m 54.1s) |   I |   120 | 17.2 |        
    3450 | 2024-05-12 23:53:05 |         MASTER-SAAO | (16h 10m 42.11s , -67d 09m 33.6s) |   R |   120 | 17.6 |        
    3450 | 2024-05-12 23:53:05 |         MASTER-SAAO | (16h 05m 56.43s , -66d 55m 38.9s) |   I |   120 | 17.1 |        
    3590 | 2024-05-12 23:55:25 |         MASTER-SAAO | (16h 10m 39.39s , -67d 07m 48.9s) |   R |   120 | 17.5 |        
    3590 | 2024-05-12 23:55:25 |         MASTER-SAAO | (16h 05m 54.02s , -66d 53m 54.3s) |   I |   120 | 17.1 |        
    3730 | 2024-05-12 23:57:45 |         MASTER-SAAO | (16h 10m 40.86s , -67d 09m 17.9s) |   R |   120 | 17.6 |        
    3730 | 2024-05-12 23:57:45 |         MASTER-SAAO | (16h 05m 55.06s , -66d 55m 23.5s) |   I |   120 | 17.2 |        
    3870 | 2024-05-13 00:00:05 |         MASTER-SAAO | (16h 10m 44.02s , -67d 07m 39.6s) |   R |   120 | 17.7 |        
    3870 | 2024-05-13 00:00:05 |         MASTER-SAAO | (16h 05m 58.38s , -66d 53m 44.9s) |   I |   120 | 17.2 |        
    4009 | 2024-05-13 00:02:25 |         MASTER-SAAO | (16h 10m 39.07s , -67d 08m 31.4s) |   R |   120 | 17.5 |        
    4009 | 2024-05-13 00:02:25 |         MASTER-SAAO | (16h 05m 53.44s , -66d 54m 37.0s) |   I |   120 | 17.0 |        
    4149 | 2024-05-13 00:04:44 |         MASTER-SAAO | (16h 05m 54.74s , -66d 53m 33.4s) |   I |   120 | 17.2 |        
    4149 | 2024-05-13 00:04:44 |         MASTER-SAAO | (16h 10m 40.15s , -67d 07m 28.4s) |   R |   120 | 17.5 |        
    4289 | 2024-05-13 00:07:04 |         MASTER-SAAO | (16h 10m 46.77s , -67d 08m 24.7s) |   R |   120 | 17.7 |        
    4289 | 2024-05-13 00:07:04 |         MASTER-SAAO | (16h 06m 01.17s , -66d 54m 30.1s) |   I |   120 | 17.2 |        
    4428 | 2024-05-13 00:09:24 |         MASTER-SAAO | (16h 10m 41.11s , -67d 09m 20.4s) |   R |   120 | 17.7 |        
    4428 | 2024-05-13 00:09:24 |         MASTER-SAAO | (16h 05m 55.29s , -66d 55m 25.4s) |   I |   120 | 17.2 |        
    4568 | 2024-05-13 00:11:43 |         MASTER-SAAO | (16h 10m 49.01s , -67d 08m 57.8s) |   R |   120 | 17.5 |        
    4568 | 2024-05-13 00:11:43 |         MASTER-SAAO | (16h 06m 03.24s , -66d 55m 02.4s) |   I |   120 | 17.2 |        
    4708 | 2024-05-13 00:14:03 |         MASTER-SAAO | (16h 10m 46.04s , -67d 07m 30.8s) |   R |   120 | 17.5 |        
    4708 | 2024-05-13 00:14:03 |         MASTER-SAAO | (16h 06m 00.39s , -66d 53m 35.5s) |   I |   120 | 17.1 |        
    4848 | 2024-05-13 00:16:23 |         MASTER-SAAO | (16h 10m 46.80s , -67d 08m 55.9s) |   R |   120 | 17.7 |        
    4848 | 2024-05-13 00:16:23 |         MASTER-SAAO | (16h 06m 00.78s , -66d 55m 00.8s) |   I |   120 | 17.2 |        


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


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