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XRT position for GRB 140428A enhanced by UVOT field astrometry

Data were analysed using HEASOFT version 6.35.2


RA (J2000):	12h 57m 28.42s (194.36842)
Dec (J2000):	+28° 23′ 05.8′′ (28.38494)
90% Error radius:	2.5′′
Number of overlaps included in position:	3
Exposure time in final position:	1124 s

Total number of overlaps considered:	7
Total overlap time:	2190 s
Number of overlaps where no X-ray source was found:	4
Number of low-X-ray-count fits rejected:	0
Number of spurious fits rejected:	0
Number of bad astrometric corrections:	0
Number of outliers removed:	0

For details of how these positions are produced, and why some positions are rejected, see the online documentation.

All XRT GRB positions