[AAVSO-HEN] GRB 090515: Lick Upper Limits

[grb at aavso.org]

The following is a GCN Circular circulated via the AAVSO network.
For an archive and more information on circulars visit:
http://lheawww.gsfc.nasa.gov/docs/gamcosray/legr/bacodine/gcn3_archive.html

TITLE:   GCN CIRCULAR
NUMBER:  9372
SUBJECT: GRB 090515: Lick Upper Limits
DATE:    09/05/15 23:42:40 GMT
FROM:    Daniel Perley at U.C. Berkeley  <dperley at astro.berkeley.edu>

D. A. Perley, M. Kislak, and M. Ganeshalingam (UC Berkeley) report:

We imaged the field of short GRB 090515 (Beardmore et al., GCN 9356) 
with the Nickel 40-inch telescope at Lick Observatory starting at 
04:52:57 UT (7.8 minutes after the trigger) in BVRI filters.  No object 
is detected within the XRT error circle (Osborne et al., GCN 9367) in 
any exposure or in stacked frames.  Approximate upper limits (relative 
to SDSS):

tmid(min) exp(sec) filt  lim(mag)
8.3       60        B  > 19.9
10.0      60        V  > 20.5
22.5      720       I  > 20.3
38.1      600       R  > 21.3