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GCN Circular 487

Lowell/Perkins observation of GRB 991216
1999-12-18T07:24:25Z (24 years ago)
John Mattox at Boston U <>
Using the KPNO GRB follow-up team's photometry (GCN #486)
for Henden's star H (GCN #473), and stars A & B of 
Jha et al. (GCN #476), the GRB 991216 data obtained so far
with the 1.8m Perkins Telescope at Lowell Observatory 
provides the following Rc band measurements.

December (UT)  Exposure  Seeing   R
17.156         200s      3.0"     18.8 +/- 0.1
18.191         600s      1.7"     21.1 +/- 0.2
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