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J/ApJS/209/9
  Unidentified gamma-ray sources. IV. X-ray (Paggi+, 2013)
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2013ApJS..209....9P
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1.J/ApJS/209/9/table4UGSs without XRT-PC counterparts in the Fermi LAT positional uncertainty region (62 rows)

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  recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  2FGL (char) 2FGL name (JHHMM.m+DDMM) (meta.id;meta.main)
  f_2FGL (char) [*] *: Flag on 2FGL (Note 1)   (meta.code)
  Exp s [142/10728] XRT-PC total exposure time (time.duration;obs.exposure)

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