TITLE:   GCN CIRCULAR
NUMBER:  11360
SUBJECT: GRB 101020A: BOOTES2 follow-up and limit
DATE:    10/10/21 14:23:38 GMT
FROM:    Martin Jelinek at Inst.Astrophys.Andalucia,Granada  <mates@iaa.es>

Martin Jelinek (IAA-CSIC) and Antonio de Ugarte Postigo
(DARK/NBI) on behalf of a larger collaboration report: 

"The 0.6m Telma telescope at BOOTES-2 (Malaga, Spain) observed
the errorbox of GRB101020a (Saxton et al., GCNC11357) in the
early morning of 21. October 2010, starting 04:48 UT. 40x 60s
r' band images were taken. The combined exposure has a 3-sigma
magnitude limit r'>18.0 calibrated against USNO-A2.0. The
effective exposure time is 05:08:14UT, i.e.  5.46h after the
GRB trigger."