[vsnet-grb-info 12699] GRB 121211A - Faulkes Telescope North afterglow confirmation

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  14058
SUBJECT: GRB 121211A - Faulkes Telescope North afterglow confirmation
DATE:    12/12/11 14:34:34 GMT
FROM:    Jure Japelj at U. of Ljubljana,Slovenia  <jure.japelj at fmf.uni-lj.si>

J. Japelj, D. Kopač (U. Ljubljana), C. Guidorzi (U. Ferrara), C. Mundell,
F. Virgili (Liverpool JMU) report on behalf of a large collaboration:

The 2-m Faulkes Telescope North automatically began observing
GRB 121211A (Mangano et al. GCN Circ. 14057) on Dec 11 2012,
13:50:46 UT corresponding to 224 seconds post burst trigger. We confirm
the presence of a fading source at the optical afterglow candidate position
reported by Mangano et al. GCN Circ. 14057. In the first 3x10 s exposure,
we measure a preliminary R magnitude of 17.9 +- 0.3, calibrated against
nearby USNO-B1 stars.