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Palomar Transient Factory Observations of the Optical Counterpart of Swift J1910.2-0546

ATel #4146; S. B. Cenko (UC Berkeley) and E. O. Ofek (Weizmann Institute) report on behalf of a larger collaboration:
on 1 Jun 2012; 22:48 UT
Credential Certification: S. Bradley Cenko (cenko@astro.berkeley.edu)

Subjects: Optical, X-ray, Transient

Referred to by ATel #: 4195, 4210, 4246

We have imaged the field of the recent high-energy transient Swift J1910.2-0546 / MAXI 1910-057 (ATEL#4139, ATEL#4140) with the Palomar 48 inch Oschin Schmidt telescope as part of the Palomar Transient Factory. Images were obtained in the Mould R filter beginning at 6:26 UT on 1 June 2012. We identify the bright optical counterpart discovered by GROND (ATEL#4144) and the UVOT (ATEL#4145) at a (J2000.0) position of:

RA: 19:10:22.80; Dec: -05:47:55.9

Using a number of point sources in the USNO-B catalog, we measure a magnitude of R = 15.9 at this time.