{
  "bibcode": "2014GCN.16672....1O",
  "body": "S. R. Oates (IAA-CSIC/UCL-MSSL) and S. B. Cenko (GSFC)\nreport on behalf of the Swift/UVOT team:\n\nThe Swift/UVOT began settled observations of the field of GRB 140808A\n42 ks after the GBM trigger (Zhang et al., GCN Circ. 16669).\nNo optical afterglow consistent with the candidate optical position\n(iPTF14eag; Singer et al. GCN Circ. 16668) is detected in the initial UVOT exposures.\n\nPreliminary 3-sigma upper limits using the UVOT photometric system\n(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the initial exposures are:\n\nFilter         T_start(s)   T_stop(s)      Exp(s)         Mag\n\nwhite          41951        47112           835         >22.3\nv              42055        47902           857         >20.7\nu              41848        51959           1212        >21.2\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": 16672,
  "createdOn": 1407578772000,
  "email": "sro@mssl.ucl.ac.uk",
  "subject": "GRB 140808A: Swift/UVOT Upper Limits",
  "submitter": "Samantha Oates at MSSL  <sro@mssl.ucl.ac.uk>",
  "eventId": "GRB 140808A"
}