{
  "bibcode": "2016GCN.19275....1M",
  "body": "F. E. Marshall (NASA/GSFC) and S. L. Gibson (U. Leicester)\nreport on behalf of the Swift/UVOT team:\n\nThe Swift/UVOT began settled observations of the field of GRB 160410A\n91 s after the BAT trigger (Gibson et al., GCN Circ. 19271).\nA source consistent with the initial UVOT position\n(Gibson et al. GCN Circ. 19271), the enhanced XRT position\n(Beardmore et al. GCN Circ. 19273), and the GROND position\n(Yates et al. GCN Circ. 19272)\nis detected in the initial UVOT exposures.\n\nThe preliminary UVOT position is:\n    RA  (J2000) =  10:02:44.37 = 150.68488 (deg.)\n    Dec (J2000) = +03:28:42.7  =   3.47853 (deg.)\nwith an estimated uncertainty of 0.49 arc sec. (radius, 90% confidence).\n\nPreliminary detections and 3-sigma upper limits using the UVOT photometric system\n(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the early exposures are:\n\nFilter         T_start(s)   T_stop(s)      Exp(s)           Mag\nwhite               91          241          147         19.46 +/- 0.10\nv                 4867         6503          393        >19.7\nb                 4251         5887          393        >20.2\nu                  304        12411          866         20.50 +/- 0.20\nw1                5277        11801         1082        >20.3\nm2                5072        10893         1082        >20.8\nw2                4662         6298          393        >20.5\n\nThe magnitudes in the table are not corrected for the Galactic extinction\ndue to the reddening of E(B-V) = 0.02 in the direction of the burst\n(Schlegel et al. 1998).",
  "circularId": 19275,
  "createdOn": 1460310046000,
  "email": "femarsha@khamseen.gsfc.nasa.gov",
  "subject": "GRB 160410A: Swift/UVOT Detection",
  "submitter": "Frank Marshall at GSFC  <femarsha@khamseen.gsfc.nasa.gov>",
  "eventId": "GRB 160410A"
}