{
  "bibcode": "2011GCN.11871....1S",
  "body": "C. A. Swenson (PSU) and T. N. Ukwatta (MSU)report on behalf\nof the Swift/UVOT team:\n\nThe Swift/UVOT began settled observations of the field of GRB 110402A\n548 s after the BAT trigger (Ukwatta et al., GCN Circ. 11857).\nWe find a faint new source consistent with the enhanced XRT position\n(Beardmore et al., GCN Circ. 11860).\n\nPreliminary magnitudes and 3-sigma upper limits using the UVOT\nphotometric system (Poole et al. 2008, MNRAS, 383, 627) for the first\nfinding chart (FC) exposure and subsequent exposures are:\n\nFilter        T_start(s)    T_stop(s)   Exp(s)    Mag\n---------------------------------------------------------------------\nwhite_FC         548           698       147     >20.5\nwhite            548         24657      1628      20.89 �0.11\nv                704         18897       510     >20.1\nb                803         24593      1544      20.84 �0.20\nu                778         30417       430     >20.6\nw1               754         30390      1296      20.39 �0.22\nm2              7176          7376       197     >19.7\nw2              6767         18791      1112      20.29 �0.20\n\nThe values quoted above 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": 11871,
  "createdOn": 1301797975000,
  "email": "cswenson@astro.psu.edu",
  "subject": "GRB 110402A:  Swift/UVOT detection of afterglow candidate",
  "submitter": "Craig Swenson at PSU/Swift  <cswenson@astro.psu.edu>",
  "eventId": "GRB 110402A"
}