{
  "bibcode": "2015GCN.17302....1K",
  "body": "Paul Kuin (MSSL/UCL) reports on behalf of the Swift/UVOT team:\n\nThe Swift/UVOT began settled observations of the field of MAXI GRB 150110C\n54ks after the trigger.  No optical afterglow consistent with the XRT\nposition\n(Page, GCN Circ. No. 17301)  is detected in the initial UVOT exposures.\nPreliminary 3-sigma upper limits using the UVOT photometric system\n(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the initial exposures\nare:\n\nFilter         T_start(s)   T_stop(s)      Exp(s)         Mag\n\nu                54238        59786         1896         >20.9\n\nThe magnitudes in the table are not corrected for the Galactic extinction\ndue to the reddening of E(B-V) = 0.04 in the direction of the burst\n(Schlegel et al. 1998).",
  "circularId": 17302,
  "createdOn": 1421010693000,
  "email": "npkuin@gmail.com",
  "subject": "GRB 150110C: Swift/UVOT Upper Limits",
  "submitter": "Paul Kuin at MSSL  <npkuin@gmail.com>",
  "eventId": "GRB 150110C"
}