[AAVSO-HEN] GRB080430: optical observations

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TITLE:   GCN CIRCULAR
NUMBER:  7739
SUBJECT: GRB080430: optical observations
DATE:    08/05/16 20:15:26 GMT
FROM:    Alexei Pozanenko at IKI, Moscow  <apozanen at iki.rssi.ru>

M. Andreev, A. Sergeev (Terskol Branch of Institute of Astronomy), Ju. 
Babina (CrAO), V. Petkov, A. Kurenya (BNO INR RAS), A. Pozanenko (IKI) on 
behalf of larger GRB follow up collaboration  report:

We observed the afterglow (Klotz et al. GCN 7646, Guidorzi et al. GCN 7647, 
Jelinek et al. GCN 7648) of GRB080430 (Guidorzi et al. GCN 7647) with 
Zeiss-600 of  Mt.Terskol observatory on May. 01.  The  afterglow is detected 
in a combined image. A photometry of the OT against USNO-B1.0 stars is 
following:

UT,              Exposure,   R_mag
(mid time)

May.01.8795 15x90s  20.9  +/-0.3

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