GCN Circular 10241
Subject
GRB 091202: Liverpool Telescope observations
Date
2009-12-03T15:15:05Z (14 years ago)
From
Cristiano Guidorzi at Ferrara U,Italy <guidorzi@fe.infn.it>
C. Guidorzi (U. Ferrara), C.G. Mundell, D. Bersier, Z. Cano,
N.R. Clay, S. Kobayashi, A. Melandri, C.J. Mottram, R.J. Smith,
I.A. Steele (Liverpool JMU), A. Gomboc (U. Ljubljana) report
on behalf of a large collaboration:
On 2009 December 3 at 00:11:21 UT the 2-m Liverpool Telescope
automatically began observing the INTEGRAL GRB 091202
(Mereghetti et al., GCN Circ. 10234; Mundell GCN Circ 10235)
using the r', i' and z' filters, corresponding to 1.02 hours
after the burst.
Inside the XRT error circle (Vetere et al. GCN Circ. 10239)
we do not detect any source at the following limiting
magnitudes:
Mid time from Total Exp Filter Magnitude
trigger (hr) (s)
------------------------------------------------
1.48 360 z' > 19.0
1.61 720 i' > 20.7
1.49 720 r' > 20.4
------------------------------------------------
Magnitudes have been calibrated from the following nearby
SDSS stars:
RA Dec z' i' r'
-----------------------------------------------
138.81006 +62.53208 15.16 15.24 15.41
138.82579 +62.53708 18.73 18.73 18.90
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