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GCN Circular 35719

Subject
Fermi GRB 240213A: Global MASTER-Net observations report
Date
2024-02-13T20:46:19Z (10 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 GRB 240213A ( Fermi GBM team, GCN 35718Not found
 
 
) errorbox  547 sec after notice time and 581 sec after trigger time at 2024-02-13 20:20:50 UT, with upper limit up to  15.4 mag. The observations began at zenith distance = 83 deg. The sun  altitude  is -23.7 deg. 

MASTER-SAAO robotic telescope  located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB 240213A errorbox  564 sec after notice time and 598 sec after trigger time at 2024-02-13 20:21:08 UT, with upper limit up to  19.5 mag. The observations began at zenith distance = 53 deg. The sun  altitude  is -31.8 deg. 

MASTER-Tunka robotic telescope  located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the Fermi GRB 240213A errorbox  841 sec after notice time and 875 sec after trigger time at 2024-02-13 20:25:45 UT, with upper limit up to  18.8 mag. The observations began at zenith distance = 75 deg. The sun  altitude  is -37.2 deg. 

The galactic latitude b = 36 deg., longitude l = 273 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2377781

We obtain a following upper limits.  

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

     641 | 2024-02-13 20:20:50 |         MASTER-Amur | (11h 07m 11.98s , -20d 31m 49.5s) |   C |   120 | 15.4 |        
     628 | 2024-02-13 20:21:08 |         MASTER-SAAO | (11h 06m 57.05s , -20d 30m 53.7s) |   C |    60 | 19.5 |        
     628 | 2024-02-13 20:21:08 |         MASTER-SAAO | (11h 01m 26.58s , -20d 19m 25.9s) |   C |    60 | 19.4 |        
     708 | 2024-02-13 20:22:27 |         MASTER-SAAO | (11h 06m 56.96s , -20d 30m 52.9s) |   C |    60 | 19.5 |        
     708 | 2024-02-13 20:22:27 |         MASTER-SAAO | (11h 01m 26.50s , -20d 19m 25.2s) |   C |    60 | 19.4 |        
     791 | 2024-02-13 20:23:10 |         MASTER-Amur | (11h 07m 14.59s , -20d 30m 39.0s) |   C |   140 | 15.4 |        
     788 | 2024-02-13 20:23:47 |         MASTER-SAAO | (11h 06m 56.88s , -20d 30m 52.3s) |   C |    60 | 19.3 |        
     788 | 2024-02-13 20:23:47 |         MASTER-SAAO | (11h 01m 26.41s , -20d 19m 24.9s) |   C |    60 | 19.4 |        
     906 | 2024-02-13 20:25:45 |        MASTER-Tunka | (11h 05m 09.88s , -20d 06m 52.1s) |   C |    60 | 18.4 |        
     966 | 2024-02-13 20:25:45 |        MASTER-Tunka | (11h 05m 09.88s , -20d 06m 52.1s) |   C |   180 | 18.8 |  Coadd 
     965 | 2024-02-13 20:25:50 |         MASTER-Amur | (11h 07m 07.90s , -20d 31m 27.1s) |   C |   170 | 15.1 |        
     969 | 2024-02-13 20:26:48 |        MASTER-Tunka | (11h 05m 10.00s , -20d 06m 51.6s) |   C |    60 | 18.4 |        
    1032 | 2024-02-13 20:27:51 |        MASTER-Tunka | (11h 05m 10.11s , -20d 06m 51.4s) |   C |    60 | 18.3 |        
    1095 | 2024-02-13 20:28:55 |        MASTER-Tunka | (11h 05m 10.20s , -20d 06m 50.6s) |   C |    60 | 18.2 |        
    1155 | 2024-02-13 20:28:55 |        MASTER-Tunka | (11h 05m 10.19s , -20d 06m 50.7s) |   C |   180 | 18.8 |  Coadd 
    1160 | 2024-02-13 20:29:00 |         MASTER-Amur | (11h 07m 07.37s , -20d 30m 33.7s) |   C |   180 | 14.3 |        
    1159 | 2024-02-13 20:29:58 |        MASTER-Tunka | (11h 05m 10.31s , -20d 06m 50.4s) |   C |    60 | 18.3 |        
    1222 | 2024-02-13 20:31:01 |        MASTER-Tunka | (11h 05m 10.38s , -20d 06m 49.8s) |   C |    60 | 18.3 |        
    1360 | 2024-02-13 20:32:19 |         MASTER-Amur | (11h 07m 11.73s , -20d 31m 38.6s) |   C |   180 | 14.0 |        
    1349 | 2024-02-13 20:33:08 |        MASTER-Tunka | (11h 05m 10.60s , -20d 06m 48.8s) |   C |    60 | 18.3 |        
    1409 | 2024-02-13 20:33:08 |        MASTER-Tunka | (11h 05m 10.59s , -20d 06m 48.6s) |   C |   180 | 18.7 |  Coadd 
    1412 | 2024-02-13 20:34:11 |        MASTER-Tunka | (11h 05m 10.65s , -20d 06m 48.8s) |   C |    60 | 18.3 |        
    1559 | 2024-02-13 20:35:38 |         MASTER-Amur | (11h 07m 06.10s , -20d 32m 41.8s) |   C |   180 | 13.6 |        
    1544 | 2024-02-13 20:36:23 |        MASTER-Tunka | (11h 05m 11.14s , -20d 05m 45.1s) |   C |    60 | 18.1 |        
    1670 | 2024-02-13 20:38:29 |        MASTER-Tunka | (11h 05m 11.38s , -20d 05m 44.6s) |   C |    60 | 18.5 |        
    1733 | 2024-02-13 20:39:33 |        MASTER-Tunka | (11h 05m 11.46s , -20d 05m 44.6s) |   C |    60 | 18.5 |        
Filter C is a clear (unfiltred) band. 


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