GCN Circular 4784
Subject
GRB 060218: MDM Observations
Event
Date
2006-02-19T04:26:33Z (20 years ago)
From
Nestor Mirabal at U Michigan <mirabal@umich.edu>
N. Mirabal (U. Michigan) reports on behalf of the MDM Observatory GRB
follow-up team:
"I observed the candidate optical afterglow of Swift GRB 060218 detected
by the Swift UVOT (Cusumano et al. GCN #4775, Marshall et al. GCN #4779,
Quimby et al. GCN #4782) with the MDM 2.4m telescope and RETROCAM imager
under partly cloudy conditions. Calibration with SDSS pre-burst
observations (Cool et al. GCN #4777) yields r = 17.55 +/- 0.1 on Feb.
19.1438 UT for the OT. This is brighter than the pre-burst observations
and confirms it as the OT of GRB 060218."