GCN Circular 7355

Subject

Swift UVOT observations of GRB080229B

Event

Date

2008-03-03T13:45:48Z (18 years ago)

From

Massimiliano de Pasquale at MSSL-UCL <mdp@mssl.ucl.ac.uk>

M. De Pasquale (MSSL/UCL) and J. K. Cannizzo (NASA/UMBC) report
on behalf of the Swift-UVOT team:

The Swift/UVOT observed the field of 080229B, detected by
SuperAgile (Evangelista et al. GCN CIRC 7340Loading...
 
 ), starting 76.3 Ks
after the trigger. Exposures were taken in the v band.
No optical afterglow is detected at the position of the refined
XRT position (Moretti et al. GCN CIRC 7354Loading...
 
 ) in the first 5
summed exposures.

  The following 3-sigma upper limit (in the UVOT photometric
system, Breeveld et al., GCN Circ. 6614Loading...
 
 ) was determined at the
XRT position (RA=13:17:00.4 DEC= -64:51:44.6 J2000):

  Filter  Tstart(Ks)  Tstop(Ks)  Exp(s)   Mag

    v        76.27     104.73     816    >19.8


  We note that this field is very crowded and it suffers from a
high Galactic reddening E(B-V) = 1.9.