{
  "bibcode": "2014GCN.16432....1S",
  "body": "M. H. Siegel (PSU) and M. De Pasquale (IASF-Palermo) report on behalf of the\nSwift/UVOT team:\n\nThe Swift/UVOT observed the field of the Fermi/GBM-detected burst GRB 140620A\nbeginning 37.6 ks after the trigger (Fitzpatrick et al., GCN circ 16426). We confirm\nthe fading optical transient reported by iPTF (Kasliwal et al., GCN circ 16425) at\na position of:\n  RA  (J2000) =  18:47:29.00 = 281.87082 (deg.)\n  Dec (J2000) =  49:43:51.0  =  49.73085 (deg.)\nwith an uncertainty of 0.3 arcsec (radius, 90% confidence). This\nis 0.7 arcsec from the iPTF position.\n\nPreliminary detections using the UVOT photometric system (Breeveld et\nal. 2011, AIP Conf. Proc. 1358, 373) are given in the following table:\n\nFilter   T_start(ks)   T_stop(ks)   Exp(s)   Mag\nu           37.6         43.9       1718     19.78+-0.10\nu          124.0        125.3       1251     20.38+-0.18\n\nThe magnitudes in the table are not corrected for the Galactic extinction\ndue to the reddening of E(B-V) = 0.06 in the direction of the burst\n(Schlegel et al. 1998).",
  "circularId": 16432,
  "createdOn": 1403387003000,
  "email": "siegel@swift.psu.edu",
  "subject": "GRB 140620A: Swift/UVOT Detection",
  "submitter": "Mike Siegel at PSU/Swift MOC  <siegel@swift.psu.edu>",
  "eventId": "GRB 140620A"
}