TITLE:   GCN CIRCULAR
NUMBER:  276
SUBJECT: GRB990316 - Optical null results
DATE:    99/03/17 14:59:23 GMT
FROM:    Elia Leibowitz at Wise Obs, Tel Aviv U  <elia@wise.tau.ac.il>

P. Ibbetson, E.O. Ofek and E.M. Leibowitz report:
 On March 16 1999, some 7.5 hours after the outburst of GRB990316 (Trigger Num.
 7475), using the 1 m telescope of the Wise Observatory, we have taken 5 CCD
 frames of 900 seconds exposure and FOV of 11x11 arcmin^{2} each, through an R
 filter. Together they cover a square box of nearly 0.3x0.3 deg^{2} around
 RA=10:06:16  Dec=-05:13:31 (J2000), at the mean UT 17:34. We have not
 identified any new object relative to the corresponding DSS images, up to a
 limiting magnitude of 19.5. Within a box of 11x11 arcmin^{2} around the
 central point the limiting magnitude is 19.9.