[vsnet-grb-info 7621] GRB 090418B: Faulkes Telescope North observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  9176
SUBJECT: GRB 090418B: Faulkes Telescope North observations
DATE:    09/04/20 20:29:19 GMT
FROM:    Cristiano Guidorzi at Ferrara U,Italy  <guidorzi at fe.infn.it>

C. Guidorzi (U. Ferrara), R.J. Smith, I.A. Steele, C.G. Mundell,
D. Bersier (Liverpool JMU), A. Gomboc (U. Ljubljana), P. O'Brien,
N. Tanvir (U. Leicester) on behalf of a large collaboration report:

On 2009 April 19 at 12:53:50 UT we observed the Swift-BAT Slew Survey
GRB 090418B (Copete et al., GCN Circ. 9159) with the 2-m Faulkes 
Telescope North using the i' and R filters.

 From a set of 6x300 s frames in each filter, we could not find any
uncatalogued object inside the BAT error circle with respect to the SDSS
field stars, down to the following limiting magnitudes:

Mid Time   Exposure  Filter   Limit
(days)      (s)               (mag)
-------------------------------------
1.17        6x300      i'      > 21
1.20        6x300      R       > 21.5
-------------------------------------