{
  "bibcode": "2014GCN.16175....1H",
  "body": "D. Harbeck (WIYN Observatory), A. Kaur (Clemson U.), A. Delgado-Navarro\n(Clemson U.), M. Orio (INAF, UW Madison), D. H. Hartmann (Clemson U.)\nreport:\n\n\n\nWe re-imaged the location of the Swift detected GRB 140423A (Sonbas et al.,\nGCN 16142) with the pODI instrument on the 3.5 m WIYN telescope at KPNO (\nhttp://www.wiyn.org/ODI/About/wiynpODI.html).\n\n\n\nObservations in the sdss r' band on 25 April 2014 consisted of one 300s\nexposure, and one 600s exposures. The optical counterpart of the burst\n(Elenin et al., GCN 16143; Kaur et al., GCN 16144; Ferrante et al., GCN\n16145; Chester et al., GCN 16147) was detected under good conditions.\n\n\n\nOBS DATE [UTC at start]      T_Exp   r' AB   stat-error seeing\n\n\n\n2014-04-25 07:17:45.434       300.0    22.58    0.1          0.7\"\n\n2014-04-25 07:24:59.654       600.0    22.64    0.08        0.75\"\n\n\n\nCalibration was the same as described in our previous report. Calibration\nrms without color correction is < 0.1\", consistency check with nearby SDSS\nstar shows calibration variations < 0.02 mag. No color / foreground\nextinction correction was applied.",
  "circularId": 16175,
  "createdOn": 1398570162000,
  "email": "hdieter@clemson.edu",
  "subject": "GRB 140423A Third epoch pODI photometry",
  "submitter": "Dieter Hartmann at Clemson.U  <hdieter@clemson.edu>",
  "eventId": "GRB 140423A"
}