[vsnet-grb-info 11794] GRB 120326A: HCT optical observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  13185
SUBJECT: GRB 120326A: HCT optical observations
DATE:    12/04/01 11:06:15 GMT
FROM:    D.K. Sahu at Indian Inst of Astrophysics,Bangalore  <dks at iiap.res.in>

D.K. Sahu, G.C. Anupama (Indian Institute of Astrophysics, Bangalore)
and S.B. Pandey (ARIES, Nainital) report.

The optical afterglow of GRB 120326A  (Siegel  et al., GCN 13105)
was observed in Bessell R  band,  with the 2m. Himalayan Chandra Telescope of
the Indian Astronomical  Observatory, Hanle, India. Observations were made
between 22:36 UT and 23:14 UT on 27/03/2012. The optical afterglow was
detected in our individual frames of 300sec each.
The preliminary R  magnitudes of the optical afterglow
calibrated using  nearby USNO B1.0 stars is as under:
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Date           Mid UT       Mid time from   Exp.    R  Magnitude

                             GRB(hrs)      (sec)
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23-03-2012     22:55         45.5750       5x300    19.68 +/-0.07
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