Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 4784

GRB 060218: MDM Observations
2006-02-19T04:26:33Z (18 years ago)
Nestor Mirabal at U Michigan <>
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."
Looking for U.S. government information and services? Visit