GRBlog: GCN 8568

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GRB 081126: GRT Optical Observation	Sakamoto et al.
	GCN 8568

SOURCE: GCN
TITLE: GCN CIRCULAR
NUMBER: 8568
SUBJECT: GRB 081126: GRT Optical Observation
DATE: 08/11/27 18:37:17 GMT
FROM: Takanori Sakamoto at NASA/GSFC <takanori.sakamoto-1@nasa.gov>

T. Sakamoto (UMBC/GSFC), Y. Urata (Saitama U), D. Donato (ORAU/GSFC), N. Gehrels (GSFC), T. Okajima (JHU/GSFC), and T. N. Ukwatta (GWU/GSFC)

We observed the field of GRB 081126 detected by Swift (trigger #335647) with the 14-inch Goddard Robotic Telescope (GRT) located at the Goddard Geophysical and Astronomical Observatory (http://cddisa.gsfc.nasa.gov/ggao/).

Five set of 30s and 60s exposures were taken in the R filter starting from Nov. 27 03:58:18 (UT). We do not detect any OT at the XRT position (Osborne et al. 2008 GCN 8556). The estimated 3-sigma upper limit of the combined image is ~17.5 mag using the USNO-B (r) catalog.

...

Optical Observations

GRB_ID	REFSYS	OBSDATE (UT)	T_BURST	FILTER	EXP	MAG	EMAG	UPLIM
20081126A	USNO-B	2008 Nov 27 03:58:18		R		17.5		yes

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