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GCN Circular 2878

Subject
GRB041218: Liverpool Telescope optical observations
Date
2004-12-19T21:01:44Z (19 years ago)
From
Alessandro Monfardini at JMU/Liverpool Robotic Tele <am@astro.livjm.ac.uk>
A. Monfardini (Liverpool), C. Mottram (Liverpool), C. Guidorzi 
(Liverpool), E. Rol (Leicester), C. Mundell (Liverpool),
I. Steele (Liverpool), R. Smith (Liverpool), A. Gomboc (Ljubljana) report:

"We observed the afterglow of GRB041218 with the 2.0m Liverpool Telescope
on La Palma. We obtained RI imaging commencing 4.3 hours after the
burst under poor seeing conditions. We report R and I estimates:

I = 20.1 +/- 0.2 mag at Dec 18.840  (exposure time = 2x120s)
R = 20.6 +/- 0.2 mag at Dec 18.837  (exposure time = 2x120s)
 
These values were derived using Henden calibration (GCN 2869)"

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