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GCN Circular 18708

GRB 151215A: TSHAO optical observations
2015-12-17T17:16:14Z (8 years ago)
Alexei Pozanenko at IKI, Moscow <>
E. Mazaeva (IKI), I. Reva (Fesenkov Astrophysical Institute), A. Kusakin 
(Fesenkov Astrophysical Institute), A. Volnova (IKI), A. Pozanenko (IKI) 
report on behalf of larger GRB follow-up collaboration:

We observed the field of GRB 151215A (Gibson et al., GCN 18691)  with 
Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical Observatory 
starting on Dec. 15 (UT) 16:47:23.  We obtained several images in R 
filter.  The afterglow  (Cenko, GCN 18692)  is detected  in a combined 
image. Preliminary photometry of the afterglow is following

Date       UT start    t-T0     Filter  Exp.    OT     Err
                        (mid, days)      (s)

2015-12-15 16:47:23    0.61190  R       21*300  22.1   0.3

The photometry is based on nearby SDSS stars.

GRB 151215A
observatory TSHAO
date 2015-12-15
UT start 16:47:23.69
t-T0 0.61190 d
exptime 21*300 s
filter R
OT 22.07 +/- 0.38 (�������������������� ��������������)
uplim 22.4
fwhm 2.4 "
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