TITLE:   GCN CIRCULAR
NUMBER:  31337
SUBJECT: Fermi GRB 211229B: Global MASTER-Net observations report 
DATE:    21/12/29 22:45:22 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 211229B ( Fermi GBM team, GCN 31336) errorbox  706 sec after notice time and 746 sec after trigger time at 2021-12-29 22:31:09 UT, with upper limit up to  15.0 mag. The observations began at zenith distance = 86 deg. The sun  altitude  is -64.4 deg. 

The galactic latitude b = 44 deg., longitude l = 293 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1832170

We obtain a following upper limits.  

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

     822 | 2021-12-29 22:31:09 |   MASTER-Kislovodsk | (12h 18m 50.50s , -18d 16m 56.8s) |  P- |   150 | 14.6 |        
    1007 | 2021-12-29 22:34:00 |   MASTER-Kislovodsk | (12h 18m 40.48s , -18d 41m 39.4s) |   C |   180 | 15.0 |        
    1208 | 2021-12-29 22:37:21 |   MASTER-Kislovodsk | (12h 18m 41.80s , -18d 40m 33.5s) |   C |   180 | 14.8 |        
Filter C is a clear (unfiltred) band. 


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