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GCN Circular 11217

Subject
GRB100904A: BOOTES-3 Upper Limit
Date
2010-09-05T20:06:20Z (14 years ago)
From
Juan Carlos Tello at IAA-CSIC <jtello@iaa.es>
J.C. Tello, J. Gorosabel, A.J. Castro-Tirado (IAA-CSIC, Granada) P.
Kubanek (IAA-CSIC and IPL-UV) W. Allen (Vintage Lane Obs.), Ph. Yock
and Kuan-Yu Lin (Auckland Univ.), report on behalf of a larger collaboration:

"We have carried out  observations of the  Swift GRB 100904A
(Ukwatta et al. GCNC  11203) on Sep 4.2982 - 4.3145 UT (~5.98 hr after
the onset of the burst, mean observing time) with the 0.6m Yock-Allen
robotic telescope (BOOTES-3) located in Blenheim, New Zealand.
Observations were carried out at high airmass (~ 7).

We do not detect any optical source within the Swift-BAT refined analysis
error circle (Ukwatta et al. GCNC 11207).
The 3 sigma limiting magnitude of the co-added unfiltered image (Texp=16x60s)
is R ~ 18.0, using USNO-B1.0 as photometric reference."

[GCN OPS NOTE(06sep10): Per author's request, K-YL was added to the author list.]
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