TITLE:   GCN CIRCULAR
NUMBER:  32735
SUBJECT: Fermi  trigger No 687345829: Global MASTER-Net observations report 
DATE:    22/10/13 10:45:51 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>

V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, D. Vlasenko, 
G.Antipov, D.Zimnukhov, V.Senik, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov,  D.Cheryasov, Ya.Kechin
(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. Gres, N.M. Budnev
(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),

A. Gabovich, V.Yurkov 
(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 GRB221013.39 (trigger No 687345829,19h 21m 52.80s , +25d 34m 48.0s, R=8.72) errorbox  373 sec after notice time and 405 sec after trigger time at 2022-10-13 09:30:29 UT, with upper limit up to  16.9 mag. Observations started at twilight.  The observations began at zenith distance = 24 deg. The sun  altitude  is -8.1 deg. 

The galactic latitude b =  5 deg., longitude l = 59 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2120276

We obtain a following upper limits.  

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

     416 | 2022-10-13 09:30:29 |         MASTER-Amur | (19h 23m 21.16s , +26d 19m 01.9s) |   C |    20 | 14.1 |        
     891 | 2022-10-13 09:38:05 |         MASTER-Amur | (19h 41m 28.26s , +23d 49m 54.7s) |   C |    60 | 14.9 |        
    1339 | 2022-10-13 09:44:33 |         MASTER-Amur | (19h 42m 42.97s , +20d 23m 12.4s) |   C |   180 | 16.2 |        
    1543 | 2022-10-13 09:47:56 |         MASTER-Amur | (19h 42m 36.69s , +20d 22m 34.6s) |   C |   180 | 16.3 |        
    2502 | 2022-10-13 10:04:56 |         MASTER-Amur | (19h 44m 33.28s , +23d 59m 01.4s) |   C |    60 | 16.2 |        
    2582 | 2022-10-13 10:06:16 |         MASTER-Amur | (19h 53m 18.23s , +23d 57m 31.6s) |   C |    60 | 15.9 |        
    2722 | 2022-10-13 10:07:36 |         MASTER-Amur | (19h 53m 22.40s , +22d 43m 37.1s) |   C |   180 | 15.8 |        
    3469 | 2022-10-13 10:21:03 |         MASTER-Amur | (19h 44m 32.30s , +23d 56m 50.2s) |   C |    60 | 16.4 |        
    3549 | 2022-10-13 10:22:23 |         MASTER-Amur | (19h 53m 23.88s , +23d 56m 48.5s) |   C |    60 | 16.3 |        
    4318 | 2022-10-13 10:34:12 |         MASTER-Amur | (19h 42m 59.86s , +22d 05m 45.9s) |   C |   180 | 16.9 |        
Filter C is a clear (unfiltred) band. 


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