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GCN Circular 15566

Subject

GRB 131202A: RATIR Optical and NIR Observations

Date

2013-12-03T04:32:41Z (11 years ago)

From

Antonino Cucchiara at UCSC/UCO Lick <acucchia@ucolick.org>

A. Cucchiara (ORAU/GSFC), Nat Butler (ASU), Alan M. Watson (UNAM),
Alexander Kutyrev (GSFC), William H. Lee (UNAM), Michael G. Richer 
(UNAM),
Chris Klein (UCB), Ori Fox (UCB), J. Xavier Prochaska (UCSC), Josh 
Bloom (UCB),
Eleonora Troja (GSFC), Owen Littlejohns (ASU), Enrico Ramirez-Ruiz 
(UCSC),
Jos�� A. de Diego (UNAM), Leonid Georgiev (UNAM), Jes��s Gonz��lez (UNAM),
Carlos Rom��n-Z����iga (UNAM), Neil Gehrels (GSFC), and Harvey Moseley 
(GSFC)
report:

We observed the field of GRB 131202A (Kocevski, et al., GCN 15559Loading...
 
 ) with 
the
Reionization and Transients Infrared Camera (RATIR; www.ratir.org) on 
the
1.5m Harold Johnson Telescope at the Observatorio Astron��mico Nacional 
on
Sierra San Pedro M��rtir from 2013/12 3.08 to 2013/12 3.15 UTC (10.81
to 12.32 hours after the BAT trigger), obtaining a total of 1.04 hours
exposure in the r and i bands and 0.44 hours exposure in the Z,
Y, J, and H bands.

For a source within the Swift-XRT error circle, in comparison with 
2MASS, we
obtain the following upper limits (3-sigma):

  r	> 22.99
   i	> 22.56
   Z	> 21.50
   Y	> 20.68
   J	> 20.43
   H	> 20.05

These magnitudes are in the AB system and are not corrected for 
Galactic
extinction in the direction of the GRB.

We thank the staff of the Observatorio Astron��mico Nacional in San 
Pedro
M��rtir.