GCN Circular 14996

A. Pozanenko (IKI), A. Volnova (IKI), O. Burhonov (UBAI), I. Molotov (KIAM) 
report on behalf of larger GRB follow-up collaboration:

We continue observations of the afterglow  (Singer et al., GCN 14967
Not found
 
 
) of GRB 
130702A  (Cheung  et al., GCN 14971
Not found
 
 
; Collazzi  et al., GCN  14972
Not found
 
 
) with 
AZT-22 telescope of Maidanak observatory.  A preliminary photometry of 
combined images is based on two SDSS stars suggested by Schulze et al. (GCN 
14978
Not found
 
 
) and used in our previous observations (Pozanenko et al, GCN 14988
Not found
 
 
)

T_start                     T0+       Filter, Exposure, OT
(UT)                          (mid, d)            (s)

2013-07-05T16:25:11  3.6592    R       6x600     19.61+/-0.02
2013-07-06T16:20:12  4.6540    R       6x600     19.71+/-0.03
2013-07-07T16:45:34  5.6717    R       6x600     19.83+/-0.04
2013-07-08T16:49:14  6.6759    R       6x300     19.81+/-0.05


The light curve is based on the photometry of this CGN circular and our 
previous observations (Pozanenko et al, GCN 14988
Not found
 
 
)  and can be found at 
http://grb.rssi.ru/GRB130702A/GRB130702A_MAO_R_lc.png

One can see flattening of the lc after 4 days (initially reported by Butler 
et al., GCN 14993
Not found
 
 
)  and possible re-brightening on 6.6 days which can 
confirm re-brightening of the afterglow (Schulze et al., GCN 14994
Not found
 
 
) and 
emerging supernova.