[vsnet-grb-info 4447] GRB070220: optical observations
GCN Circulars
gcncirc at capella.gsfc.nasa.gov
Sat Mar 24 04:09:33 JST 2007
TITLE: GCN CIRCULAR
NUMBER: 6223
SUBJECT: GRB070220: optical observations
DATE: 07/03/23 19:09:29 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen at iki.rssi.ru>
V. Rumyantsev (CrAO), A. Pozanenko (IKI) on behalf of larger GRB follow up
collaboration report:
We observed error box of GRB070220 (Stamatikos et al., GCN 6114) with Shajn
2.6m telescope of CrAO in R-band on Feb. 8 between (UT)19:25 and 19:53. No
object is found in refined XRT error box (Beardmore et al., GCN 6118).
Limiting magnitude of a combined image is based on USANO A2.0:
Mid time (UT), Exposure, R_Lim (3sigma)
Feb. 8.819 22x60 23.9
The combined image can be found in
http://grb.rssi.ru/GRB070220/grb070220_R_ZTSh.gif
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