GRB020813 DDS-2 images prior to the burst. 27 minute composite exposure centered around 20:30 UT 9x180 sec exposures (total of 27 minutes) centered at 2002.08.13, 20:30. R=20.0+/-0.2, using USNO-A2 magnitude estimates. (GCN #1488)
DDS-2 images prior to the burst.
27 minute composite exposure centered around 20:30 UT
9x180 sec exposures (total of 27 minutes) centered at 2002.08.13, 20:30. R=20.0+/-0.2, using USNO-A2 magnitude estimates. (GCN #1488)