GCN Circular 37796

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-OAFA robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Argentina (OAFA observatory of San Juan National University) started inspect of the Fermi GRB 241016A ( Fermi GBM team, GCN 37795
Not found
 
 
) errorbox  2521 sec after notice time and 2543 sec after trigger time at 2024-10-16 02:27:57 UT, with upper limit up to  17.7 mag. The observations began at zenith distance = 73 deg. The sun  altitude  is -41.9 deg. 

The galactic latitude b = -21 deg., longitude l = 186 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2639711

We obtain a following upper limits.  

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

    2574 | 2024-10-16 02:27:57 |         MASTER-OAFA | (03h 37m 53.14s , +12d 24m 09.6s) |   C |    60 | 17.3 |        
    2808 | 2024-10-16 02:31:51 |         MASTER-OAFA | (03h 39m 35.30s , +14d 17m 33.5s) |   C |    60 | 17.4 |        
    3507 | 2024-10-16 02:43:30 |         MASTER-OAFA | (03h 37m 51.07s , +12d 25m 36.8s) |   C |    60 | 17.6 |        
    3742 | 2024-10-16 02:47:25 |         MASTER-OAFA | (03h 39m 42.32s , +14d 17m 40.3s) |   C |    60 | 17.7 |        
    3810 | 2024-10-16 02:48:43 |         MASTER-OAFA | (03h 53m 10.90s , +19d 35m 42.2s) |   C |    40 | 16.6 |        
    3820 | 2024-10-16 02:48:43 |         MASTER-OAFA | (04h 02m 44.33s , +20d 00m 04.1s) |   C |    60 | 14.6 |        
    3888 | 2024-10-16 02:50:01 |         MASTER-OAFA | (03h 50m 30.87s , +17d 40m 30.3s) |   C |    40 | 16.9 |        
    3898 | 2024-10-16 02:50:01 |         MASTER-OAFA | (03h 59m 57.67s , +18d 04m 54.9s) |   C |    60 | 16.4 |        
    3977 | 2024-10-16 02:51:20 |         MASTER-OAFA | (03h 52m 49.09s , +23d 48m 04.8s) |   C |    60 | 15.4 |        
    4438 | 2024-10-16 02:59:11 |         MASTER-OAFA | (03h 56m 13.21s , +21d 30m 09.0s) |   C |    40 | 16.8 |        
    4448 | 2024-10-16 02:59:11 |         MASTER-OAFA | (04h 05m 53.77s , +21d 54m 28.4s) |   C |    60 | 15.6 |        
    4692 | 2024-10-16 03:03:15 |         MASTER-OAFA | (03h 49m 30.02s , +21d 54m 38.3s) |   C |    60 | 17.2 |        
    4759 | 2024-10-16 03:04:32 |         MASTER-OAFA | (03h 53m 11.02s , +19d 37m 07.0s) |   C |    40 | 17.0 |        
    4769 | 2024-10-16 03:04:32 |         MASTER-OAFA | (04h 02m 44.20s , +20d 01m 27.1s) |   C |    60 | 17.0 |        
    4836 | 2024-10-16 03:05:49 |         MASTER-OAFA | (03h 50m 35.83s , +17d 42m 27.1s) |   C |    40 | 17.0 |        
    4846 | 2024-10-16 03:05:49 |         MASTER-OAFA | (04h 00m 02.51s , +18d 06m 49.8s) |   C |    60 | 17.4 |        
    4924 | 2024-10-16 03:07:07 |         MASTER-OAFA | (03h 52m 45.79s , +23d 47m 36.4s) |   C |    60 | 17.2 |        
    5379 | 2024-10-16 03:14:52 |         MASTER-OAFA | (03h 56m 12.83s , +21d 31m 35.7s) |   C |    40 | 16.9 |        
    5389 | 2024-10-16 03:14:52 |         MASTER-OAFA | (04h 05m 53.35s , +21d 55m 52.0s) |   C |    60 | 17.2 |        
    5624 | 2024-10-16 03:18:47 |         MASTER-OAFA | (03h 49m 35.92s , +21d 54m 46.3s) |   C |    60 | 17.5 |        
    5692 | 2024-10-16 03:20:05 |         MASTER-OAFA | (03h 53m 15.46s , +19d 37m 44.1s) |   C |    40 | 17.1 |        
    5702 | 2024-10-16 03:20:05 |         MASTER-OAFA | (04h 02m 48.83s , +20d 02m 02.7s) |   C |    60 | 17.5 |        
    5770 | 2024-10-16 03:21:23 |         MASTER-OAFA | (03h 50m 34.38s , +17d 42m 25.4s) |   C |    40 | 17.1 |        
    5780 | 2024-10-16 03:21:23 |         MASTER-OAFA | (04h 00m 01.31s , +18d 06m 47.9s) |   C |    60 | 17.6 |        
    5857 | 2024-10-16 03:22:40 |         MASTER-OAFA | (03h 52m 52.25s , +23d 50m 12.2s) |   C |    60 | 17.5 |        
    6331 | 2024-10-16 03:30:44 |         MASTER-OAFA | (03h 56m 16.86s , +21d 32m 14.6s) |   C |    40 | 17.1 |        
    6377 | 2024-10-16 03:31:20 |         MASTER-OAFA | (04h 05m 57.56s , +21d 56m 28.5s) |   C |    60 | 17.5 |  Coadd 
    6760 | 2024-10-16 03:37:43 |         MASTER-OAFA | (04h 17m 39.26s , +27d 37m 20.0s) |   C |    60 | 17.1 |        
    6827 | 2024-10-16 03:39:00 |         MASTER-OAFA | (04h 20m 10.79s , +25d 18m 02.8s) |   C |    40 | 17.1 |        
    6837 | 2024-10-16 03:39:00 |         MASTER-OAFA | (04h 30m 08.52s , +25d 42m 14.0s) |   C |    60 | 16.7 |        
    6983 | 2024-10-16 03:41:36 |         MASTER-OAFA | (04h 03m 22.59s , +25d 20m 23.9s) |   C |    40 | 17.2 |        
    6994 | 2024-10-16 03:41:37 |         MASTER-OAFA | (04h 13m 20.22s , +25d 44m 30.1s) |   C |    60 | 17.5 |        
Filter C is a clear (unfiltred) band. 


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