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Improved X-ray position for XTE J1701-407

ATEL # 1621; R. Starling and P. Evans (U. Leicester, on behalf of the Swift XRT team)
on 18 Jul 2008; 17:09 UT
Password Certification: Rhaana Starling (rlcs1@star.le.ac.uk)

Subjects: X-ray, Transients

We report an improved position for the transient source XTE J1701-407 (Markwardt et al. ATEL #1569, Degenaar et al. ATEL #1572) using Swift XRT data from the recently detected X-ray burst (Markwardt et al. ATEL #1616 ; Linares et al. ATEL #1618).

Using 322 s of XRT Photon Counting mode data and 2 UVOT images, we find an astrometrically corrected X-ray position (using the XRT-UVOT alignment and matching UVOT field sources to the USNO-B1 catalogue, Goad et al. 2007) of RA, Dec = 255.43459, -40.85832 deg which is equivalent to:
RA (J2000): 17 01 44.30
Dec (J2000): -40 51 29.9
with an uncertainty of 1.7 arcsec (radius, 90% confidence).


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