TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  4256
SUBJECT: GRB 051111a: IR photometry
DATE:    05/11/11 09:48:19 GMT
FROM:    Josh Bloom at UC Berkeley  <jbloom@astron.berkeley.edu>

J. S. Bloom, on behalf of a larger collaboration, reports:

"As the poor transmission conditions (i.e. clouds) at Mt. Hopkins  
improved, we managed to obtain a total imaging exposure of 188  
seconds on the field of GRB 051111a (GCN 4248) before hitting a  
telescope limit. In simultaneous observations with PAIRITEL (*) we  
measure magnitudes of the Rujopakarn transient (GCN 4247) of:

            J = 16.55 ± 0.03, H = 15.85 ± 0.04 and Ks = 15.29 ±  0.06

from 2005-11-11 07:23:29 to 2005-11-11 07:28:26 UTC. A color  
composite image may be found at:
                   http://astro.berkeley.edu/~jbloom/grb051111a.gif

This message may be cited."

(*) http://pairitel.org