GCN Circular 4937
Subject
GRB 060322: LNA optical limit
Date
2006-03-30T18:10:23Z (18 years ago)
From
Antonio Pereyra at IAG-U.Sao Paulo <antonio@astro.iag.usp.br>
A. Pereyra, T. Dominici, A. M. Magalh�es and Z. Abraham (IAG, Univ. of S�o Paulo) report:
We observed the field of GRB 060322 (Perri et al. GCN 4903) with the IAG-USP 60cm
telescope at the Laborat�rio Nacional de Astrof�sica (LNA), Brazil. The observations
were made on March 24.342 (UT middle of observation) and 1.381 days after the burst
under non-optimal sky conditions. Comparison to the DSS2 (Red) did not reveal any object
inside the error circle from Perri et al. (GCN 4919). Our sequence of co-added R-band
images (8x300s + 5x50s) yielded a 3-sigma limit magnitude of 18.7 using USNO B1.0 field
stars.
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