GCN Circular 11045
Subject
GRB 100728B: optical photometry of ISON-NM
Date
2010-08-03T21:25:21Z (14 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A. Volnova (SAI MASU), L. Elenin, I. Molotov (ISON), A. Pozanenko (IKI)
report on behalf of larger GRB follow-up collaboration:
We observed the field of the Swift GRB 100728B (Morris et al. GCN 11009)
with 0.45-m telescope �f ISON-NM observatory on July 28 (Elenin at al.,
GCN 11012).
The afterglow ( Perley et al. GCN 11007; Morris et al. GCN 11009; Ivarsen et
al. GCN 11011) is detectable on each of four images taken between July 28
(UT) 10:45:49 - 11:01:14.
A photometry of unfiltered images against SDSS field stars and R-mag
obtained with Lupton transformations is following
t-t0, filter, exposure, OT
(sec)
984 W 300 18.36+/-0.17
1294 W 300 18.93+/-0.22
1603 W 300 18.80+/-0.18
1909 W 300 19.00+/-0.30
Finding chart and SDSS calibration stars can be found at
http://grb.rssi.ru/GRB100728B/100728b-refstars.png
