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GCN Circular 12072

Subject
GRB 110610A: 1.23m CAHA optical observations
Date
2011-06-12T20:41:02Z (13 years ago)
From
Javier Gorosabel at IAA-CSIC <jgu@iaa.es>
J. Gorosabel (IAA-CSIC, Granada), P. Kubanek (IAA-CSIC, Granada & U.  
Valencia), report on behalf of a larger collaboration:

"We have taken two optical data sets of the Swift GRB 110610A  
(Marshall et al., GCN 12065) field using the 1.23m Calar Alto  
telescope. The observations were carried out in the I-band on June  
11.0013--11.1579 UT and June 11.9093--12.1599 UT (8.67-12.44 hours and  
30.46-36.48 hours post trigger, respectively). We do not detect any  
optical source consistent with the XRT error circle (Goad et al., GCNC  
12069) down to a limiting magnitude of I=20.6 (3 sigma, calibrated  
against USNO-B1.0)".
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