GCN Circular 35838

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 240229A ( Fermi GBM team, GCN 35833
Not found
 
 
) errorbox  565 sec after notice time and 608 sec after trigger time at 2024-02-29 14:17:15 UT, with upper limit up to  17.3 mag. The observations began at zenith distance = 57 deg. The sun  altitude  is -44.1 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the Fermi GRB 240229A errorbox  12048 sec after notice time and 12090 sec after trigger time at 2024-02-29 17:28:37 UT, with upper limit up to  17.4 mag. The observations began at zenith distance = 80 deg. The sun  altitude  is -28.0 deg. 

The galactic latitude b = 78 deg., longitude l = 336 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2388695

We obtain a following upper limits.  

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

     668 | 2024-02-29 14:17:15 |         MASTER-Amur | (13h 15m 43.59s , +16d 45m 26.5s) |   C |   120 | 16.8 |        
     823 | 2024-02-29 14:19:34 |         MASTER-Amur | (13h 15m 45.52s , +16d 46m 56.6s) |   C |   150 | 17.1 |        
    1008 | 2024-02-29 14:22:24 |         MASTER-Amur | (13h 15m 40.46s , +16d 45m 49.5s) |   C |   180 | 17.1 |        
    1207 | 2024-02-29 14:25:44 |         MASTER-Amur | (13h 15m 39.17s , +16d 46m 37.0s) |   C |   180 | 17.1 |        
    1407 | 2024-02-29 14:29:03 |         MASTER-Amur | (13h 15m 45.28s , +16d 45m 24.1s) |   C |   180 | 17.1 |        
    1606 | 2024-02-29 14:32:22 |         MASTER-Amur | (13h 15m 39.10s , +16d 44m 09.9s) |   C |   180 | 17.0 |        
    2526 | 2024-02-29 14:48:42 |         MASTER-Amur | (13h 18m 12.51s , +18d 16m 37.4s) |   C |    60 | 16.4 |        
    2605 | 2024-02-29 14:50:02 |         MASTER-Amur | (13h 26m 32.91s , +18d 16m 02.2s) |   C |    60 | 16.6 |        
    2779 | 2024-02-29 14:52:55 |         MASTER-Amur | (13h 10m 35.17s , +18d 15m 01.2s) |   C |    60 | 16.6 |        
    3726 | 2024-02-29 15:08:42 |         MASTER-Amur | (13h 18m 05.95s , +18d 14m 13.0s) |   C |    60 | 16.9 |        
    3806 | 2024-02-29 15:10:02 |         MASTER-Amur | (13h 26m 39.19s , +18d 14m 47.0s) |   C |    60 | 17.2 |        
    3972 | 2024-02-29 15:12:49 |         MASTER-Amur | (13h 10m 34.58s , +18d 13m 28.9s) |   C |    60 | 17.3 |        
    4802 | 2024-02-29 15:26:39 |         MASTER-Amur | (13h 18m 12.01s , +18d 14m 50.4s) |   C |    60 | 17.1 |        
    4882 | 2024-02-29 15:27:59 |         MASTER-Amur | (13h 26m 31.08s , +18d 14m 32.1s) |   C |    60 | 17.1 |        
    5041 | 2024-02-29 15:30:38 |         MASTER-Amur | (13h 10m 36.75s , +18d 13m 13.8s) |   C |    60 | 17.2 |        
    7843 | 2024-02-29 16:17:19 |         MASTER-Amur | (13h 10m 09.39s , +16d 15m 21.3s) |   C |    60 | 16.6 |        
    8555 | 2024-02-29 16:29:11 |         MASTER-Amur | (13h 18m 24.16s , +16d 15m 56.3s) |   C |    60 | 16.4 |        
    8861 | 2024-02-29 16:34:17 |         MASTER-Amur | (13h 10m 09.58s , +16d 15m 00.1s) |   C |    60 | 16.5 |        
    9561 | 2024-02-29 16:45:58 |         MASTER-Amur | (13h 18m 31.22s , +16d 15m 28.9s) |   C |    60 | 16.5 |        
    9802 | 2024-02-29 16:49:58 |         MASTER-Amur | (13h 10m 05.38s , +16d 12m 45.1s) |   C |    60 | 16.5 |        
   10645 | 2024-02-29 17:04:01 |         MASTER-Amur | (13h 18m 25.32s , +16d 12m 21.5s) |   C |    60 | 16.4 |        
   12121 | 2024-02-29 17:28:37 |   MASTER-Kislovodsk | (13h 07m 59.15s , +18d 23m 53.3s) |   C |    60 | 17.2 |        
   12915 | 2024-02-29 17:41:52 |   MASTER-Kislovodsk | (13h 07m 19.51s , +16d 29m 19.2s) |   C |    60 | 17.2 |        
   12995 | 2024-02-29 17:43:12 |   MASTER-Kislovodsk | (13h 15m 39.59s , +16d 30m 02.2s) |   C |    60 | 16.9 |        
   13154 | 2024-02-29 17:45:51 |   MASTER-Kislovodsk | (13h 07m 59.06s , +18d 22m 14.0s) |   C |    60 | 17.4 |        
   13551 | 2024-02-29 17:52:28 |   MASTER-Kislovodsk | (13h 15m 32.94s , +18d 24m 05.9s) |   C |    60 | 16.9 |        
   13710 | 2024-02-29 17:55:07 |   MASTER-Kislovodsk | (13h 23m 59.86s , +18d 21m 58.6s) |   C |    60 | 17.1 |        
   14809 | 2024-02-29 18:12:26 |         MASTER-Amur | (13h 22m 10.81s , +14d 44m 23.7s) |   R |   180 | 15.4 |        
   15019 | 2024-02-29 18:15:56 |         MASTER-Amur | (13h 20m 47.98s , +15d 00m 15.9s) |   R |   180 | 15.0 |        
Filter C is a clear (unfiltred) band. 


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