[vsnet-grb-info 5700] Swift UVOT observations of GRB080229B

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  7355
SUBJECT: Swift UVOT observations of GRB080229B
DATE:    08/03/03 13:45:48 GMT
FROM:    Massimiliano de Pasquale at MSSL-UCL  <mdp at 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 7340), 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 7354) in the first 5
summed exposures.

  The following 3-sigma upper limit (in the UVOT photometric
system, Breeveld et al., GCN Circ. 6614) 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.