Back
GCN Circular 36472

Subject
Fermi GRB 240514B: Global MASTER-Net observations report
Date
2024-05-14T06:31:25Z (6 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 GRB 240514B ( Fermi GBM team, GCN 36469Not found
 
 
) errorbox  186 sec after notice time and 220 sec after trigger time at 2024-05-14 04:07:25 UT, with upper limit up to  17.8 mag. Observations started at twilight.  The observations began at zenith distance = 76 deg. The sun  altitude  is -15.4 deg. 

The galactic latitude b = -51 deg., longitude l = 70 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2455691

We obtain a following upper limits.  

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

     250 | 2024-05-14 04:07:25 |         MASTER-SAAO | (23h 53m 26.24s , +31d 15m 52.3s) |   C |    60 | 17.3 |        
     250 | 2024-05-14 04:07:25 |         MASTER-SAAO | (23h 51m 19.62s , +31d 29m 09.8s) |   C |    60 | 17.6 |        
     330 | 2024-05-14 04:08:44 |         MASTER-SAAO | (00h 02m 55.69s , +31d 14m 48.8s) |   C |    60 | 17.0 |        
     330 | 2024-05-14 04:08:44 |         MASTER-SAAO | (00h 00m 49.32s , +31d 28m 06.8s) |   C |    60 | 17.4 |        
     525 | 2024-05-14 04:11:59 |         MASTER-SAAO | (23h 48m 56.98s , +27d 26m 04.0s) |   C |    60 | 17.5 |        
     525 | 2024-05-14 04:11:59 |         MASTER-SAAO | (23h 46m 54.69s , +27d 39m 27.5s) |   C |    60 | 17.8 |        
     604 | 2024-05-14 04:13:19 |         MASTER-SAAO | (00h 11m 01.46s , +29d 21m 22.9s) |   C |    60 | 16.8 |        
     604 | 2024-05-14 04:13:19 |         MASTER-SAAO | (00h 08m 57.25s , +29d 34m 47.3s) |   C |    60 | 17.3 |        
     684 | 2024-05-14 04:14:39 |         MASTER-SAAO | (00h 20m 12.77s , +29d 20m 15.5s) |   C |    60 | 16.7 |        
     684 | 2024-05-14 04:14:39 |         MASTER-SAAO | (00h 18m 08.63s , +29d 33m 39.6s) |   C |    60 | 17.0 |        
     927 | 2024-05-14 04:18:42 |         MASTER-SAAO | (23h 51m 33.13s , +27d 41m 18.0s) |   C |    60 | 17.0 |        
     927 | 2024-05-14 04:18:42 |         MASTER-SAAO | (23h 53m 35.76s , +27d 27m 56.6s) |   C |    60 | 16.8 |        
    1007 | 2024-05-14 04:20:02 |         MASTER-SAAO | (00h 02m 43.28s , +27d 26m 54.1s) |   C |    60 | 16.5 |        
    1007 | 2024-05-14 04:20:02 |         MASTER-SAAO | (00h 00m 40.74s , +27d 40m 16.4s) |   C |    60 | 16.7 |        
    1590 | 2024-05-14 04:29:44 |         MASTER-SAAO | (00h 02m 55.61s , +31d 15m 34.3s) |   C |    60 | 14.4 |        
Filter C is a clear (unfiltred) band. 


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