{
  "bibcode": "2009GCN..9937....1H",
  "body": "J. Haislip, D. Reichart, K. Ivarsen, A. LaCluyze, A. Foster, J. Moore, A. \nOza, M. Schubel, J. Styblova, A. Trotter, J. A. Crain, and M. Nysewander \nreport:\n\nSkynet observed the Fermi/LAT localization of GRB 090926A (Uehara et al., \nGCN 9934) with four of the 16\" PROMPT telescopes at CTIO beginning 19.0 \nhours after the trigger in UBVRI.\n\nWe detect an optical source within the Swift/XRT localization (Vetre et \nal., GCN 9936) that is not in the DSS (POSS-II Red), at\n\nRA = 23:33:36.02\nDEC = -66:19:26.5\n\nStacking only images that increase the limiting magnitude yields:\n\nmean\ntime\nsince                                              cal.\ntrig.  tel.      exp.     fil.  magnitude          stars\n(h)              (# x s)\n\n19.9   PROMPT-2  22 x 80  V     18.81 +0.10 -0.09  52 NOMAD\n20.0   PROMPT-5  22 x 80  I     18.24 +0.04 -0.04  165 USNO B1\n20.0   PROMPT-4  24 x 80  R     18.06 +0.03 -0.03  230 USNO B1",
  "circularId": 9937,
  "createdOn": 1254015389000,
  "email": "haislip@physics.unc.edu",
  "subject": "GRB 090926A: Skynet/PROMPT Discovery of the Optical Afterglow",
  "submitter": "Josh Haislip at U.North Carolina  <haislip@physics.unc.edu>",
  "eventId": "GRB 090926A"
}