{
  "bibcode": "2016GCN.19923....1H",
  "body": "L. M. Z. Hagen (PSU) and J. R. Cummings (GSFC/UMBC)\nreport on behalf of the Swift/UVOT team:\n\nThe Swift/UVOT began settled observations of the field of GRB 160910A\n196954 s after the Fermi/GBM (Veres et al., GCN Circ. 19901) and\nFermi/LAT (Racusin et al., GCN Circ. 19902) triggers.  We detect a\nfading source consistent with the XRT position (D'Ai et al., GCN Circ.\n19904) and optical detections (de Ugarte Postigo et al., GCN Circ.\n19907; Malesani et al., GCN Circ. 19908; Lipunov et al., GCN Circ.\n19914; Mazaeva et al., GCN Circ. 19919).\n\nPreliminary detections using the UVOT photometric system (Breeveld et al.\n2011, AIP Conf. Proc. 1358, 373) for the early exposures are:\n\nFilter         T_start(s)   T_stop(s)      Exp(s)           Mag\n\nwhite           196954       267060         1620          20.61+-0.14\nwhite           267064       318724         2326          20.95+-0.14\n\nThe magnitudes in the table are not corrected for the Galactic extinction\ndue to the reddening of E(B-V) = 0.01 in the direction of the burst\n(Schlegel et al. 1998).",
  "circularId": 19923,
  "createdOn": 1473873161000,
  "email": "lea.zernow.hagen@gmail.com",
  "subject": "GRB 160910A: Swift/UVOT Detection",
  "submitter": "Lea Hagen at PSU  <lea.zernow.hagen@gmail.com>",
  "eventId": "GRB 160910A"
}