[vsnet-grb-info 6221] GRB 080607 - PAIRITEL NIR detection

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  7850
SUBJECT: GRB 080607 - PAIRITEL NIR detection
DATE:    08/06/07 07:53:03 GMT
FROM:    Adam Miller at UC Berkeley  <amiller at astro.berkeley.edu>

A. A. Miller, J. S. Bloom, D. A. Perley (UC Berkeley), D. Starr (UCB, 
LCOGT) report:

We observed the optical afterglow of GRB 080607 (Mangano et al., GCN 
7847, Rujopakarn et al., GCN 7846) with the 1.3m Peters Automated Infrared 
Imaging Telescope (PAIRITEL). Observations began at 06:08:44 Jun 07, 
2008 UT. We detect the afterglow in a 612 sec mosaic of 7.8 sec 
simultaneous exposures in the J, H, and Ks filters. Preliminary 
photometry for the afterglow in exposures beginning on 06:10:32 Jun 07, 
2008 UT yields J = 17.1 +- 0.1, H = 15.3 +- 0.1, and  Ks = 13.7 +- 0.1, 
calibrated to the 2MASS system.