GCN Circular 8093
Subject
GRB 080810: Liverpool Telescope observations
Event
Date
2008-08-11T10:14:52Z (18 years ago)
From
Cristiano Guidorzi at INAF-OAB <cristiano.guidorzi@brera.inaf.it>
C. Guidorzi (INAF-OAB), I. Steele (LJMU), N. Tanvir (U. Leicester)
on behalf of a larger collaboration report:
On 2008 August 11 (03:53:56 UT) we began observing the field of GRB 080810
(Page et al. GCN Circ. 8080) with the Liverpool Telescope using
the r' and i' filters.
The optical afterglow is clearly detected at the position reported
by ROTSE-III (Rykoff GCN Circ. 8084) and the NOT (de Ugarte Postigo
et al. GCN Circ. 8089). We found the following magnitudes:
Telescope Filter T_mid[hr] Exposure[s] Mag
-------------------------------------------------------------
LT i' 14.770 300 19.14 +/- 0.04
LT r' 15.328 300 19.93 +/- 0.04
-------------------------------------------------------------
The calibration was performed using the R2 and I magnitudes
of the following nearby USNOB1 catalogue star: 23:47:06.819,
+00:19:27.15, using R2=15.31, I=14.69.