GCN Circular 14230
Subject
GRB 130216A: P200 NIR Observations
Event
Date
2013-02-17T14:01:31Z (13 years ago)
From
Daniel Perley at Caltech <dperley@astro.caltech.edu>
D. A. Perley (Caltech) and S. B. Cenko (UC Berkeley) report:
We imaged the BAT position of GRB 130216A (Melandri et al., GCN 14223;
Barthelmy et al., GCN 14299) on 2013-02-17 (UT) in Ks-band at two
different epochs: 9 one-minute exposures between 02:56 and 03:08
followed by 18 one-minute exposures between 05:46 and 06:13. The FOV
covers the entire BAT error circle.
No new sources are seen in the field relative to the 2MASS catalog.
Digital image subtraction of the two epochs gives a limit on variability
of Ks >~ 18.7 mag (5 sigma) between 4.77 and 7.74 hours after the BAT
trigger.