TITLE:   GCN CIRCULAR
NUMBER:  31330
SUBJECT: Fermi GRB 211229A: Global MASTER-Net observations report 
DATE:    21/12/29 04:30:30 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, T.Pogrosheva, E.Minkina,
A.Chasovnikov, V.Topolev, V.Grinshpun, D.Kuvshinov,  D. Cheryasov
(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),

B.L.Carrasco, J.R.Valdes,V.Chavushyan, C.J.Martinez, V.M.Patino Alvarez,
M.L.H.Rodriguez (INAOE, OAGH)

A. Tlatov, D. Dormidontov 
(Kislovodsk Solar Station of the Pulkovo Observatory),

A. Gabovich, V.Yurkov 
(Blagoveschensk Educational State University)


MASTER-Kislovodsk robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the Fermi GRB 211229A ( Fermi GBM team, GCN 31329) errorbox  264 sec after notice time and 292 sec after trigger time at 2021-12-29 03:34:08 UT, with upper limit up to  16.0 mag. Observations started at twilight.  The observations began at zenith distance = 77 deg. The sun  altitude  is -11.9 deg. 

The galactic latitude b = -0 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=1831397

We obtain a following upper limits.  

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

     323 | 2021-12-29 03:34:08 |   MASTER-Kislovodsk | (19h 27m 54.52s , +27d 51m 45.4s) |   C |    60 | 15.5 |        
     323 | 2021-12-29 03:34:08 |   MASTER-Kislovodsk | (19h 32m 07.22s , +27d 27m 37.1s) |   C |    60 | 15.7 |        
     403 | 2021-12-29 03:35:28 |   MASTER-Kislovodsk | (19h 25m 20.18s , +25d 55m 56.8s) |   C |    60 | 16.0 |        
     403 | 2021-12-29 03:35:29 |   MASTER-Kislovodsk | (19h 29m 28.21s , +25d 31m 46.2s) |   C |    60 | 16.0 |        
Filter C is a clear (unfiltred) band. 


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