{
  "bibcode": "2013GCN.14871....1H",
  "body": "S. T. Holland (STScI) and J. R. Cummings (NASA/UMBC) report on behalf\nof the Swift/UVOT team:\n\n    The Swift/UVOT began settled observations of the field of GRB\n130609A starting 70 s after the BAT trigger (Cummings et al. 2013,\nGCNC 14828).  We do not detect any new source consistent with the\nUVOT-enhanced XRT position (Evans 2013, GCNC 14835) in any of the UVOT\nexposures.  Preliminary 3-sigma upper limits using the UVOT\nphotometric system (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373)\nfor the finding chart (FC) exposures and initial summed exposures are\npresented below.\n\nFilter      TSTART      TSTOP   Exposure      Mag\n-------------------------------------------------\nwhite (FC)      70        220        147    >21.0\n               562        582         19    >19.8\nu (FC)         282        532        246    >20.3\n               686        706         19    >18.6\n-------------------------------------------------\nv              612       6212        413    >19.9\nb              537     18,175       1773    >21.7\nu             5191     23,545       2254    >21.4\nuvw1          4987     23,257       2164    >21.5\nuvm2          4782     22,351       1279    >21.3\nuvw2          4372       6007        393    >20.8\nwhite         4166     12,406       1022    >22.0\n-------------------------------------------------\n\n    The quoted upper limits have not been corrected for the expected\nextinction due to the Galactic reddening along the line of sight to\nthis burst of E(B-V) = 0.03 mag (Schlafly et al. 2011, ApJS, 737,\n103).",
  "circularId": 14871,
  "createdOn": 1370962566000,
  "email": "sholland@stsci.edu",
  "subject": "GRB 130609A: Swift/UVOT Upper Limits",
  "submitter": "Stephen Holland at STScI  <sholland@stsci.edu>",
  "eventId": "GRB 130609A"
}