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GCN Circular 13556

GRB 120802A: optical uper limit in ISON-NM observatory
2012-08-02T10:06:08Z (12 years ago)
Alexei Pozanenko at IKI, Moscow <>
L. Elenin (KIAM), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of 
larger GRB  follow-up collaboration:

We observed the field of  GRB 120802A (Holland et al., GCN 13555) with 
0.45-m telescope �f ISON-NM observatory  starting on  Aug. 02 (UT) 08:13:18, 
i.e. 12.5 minutes after burst  trigger.  We took  several unfiltered images 
of 30 s exposure.  We do not detect any source within XRT error circle 
(Holland et al., GCN 13555) in any co-added frames.   The preliminary 
photometry of  co-added frames is based  on the USNO-B1.0 (R2)  nearby 

T_start,     Exposure, OT,  Upper Limit (3sigma)
(UT)           (s)

08:13:18    10x30       n/d    17.5
08:13:18    20x30       n/d    17.7
08:13:18    29x30       n/d    18.1

Observations are continued.
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