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GCN Circular 9492

Subject
GRB 090607: Faulkes Telescope North observations
Date
2009-06-07T08:18:10Z (15 years ago)
From
Cristiano Guidorzi at Ferrara U,Italy <guidorzi@fe.infn.it>
C. Guidorzi (U. Ferrara), A. Melandri (Liverpool JMU), P. O'Brien,
N. Tanvir (U. Leicester) on behalf of a large collaboration report:

On 2009 June 07 at 06:01:12 UT we observed the Swift-BAT GRB 090607
(Marshall et al., GCN Circ. 9491) with the 2-m Faulkes Telescope North.

Observations started 31 minutes after the BAT trigger time and were
performed using the B, V, R and i' filters. We could not find any
uncatalogued object inside the XRT error circle down to the following
limiting magnitudes:

Time Interval   Total Exp  Filter     Limit
(min from GRB)  (s)                  (mag)
-------------------------------------------
31 - 82          720        R        > 21.8
35 - 75          520        i'       > 21.6
-------------------------------------------

Magnitudes in the R and i' filters have been calibrated against
nearby field stars using USNOB1-R2 and SDSS-i catalogue values,
respectively.
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