{
  "bibcode": "2010GCN.10494....1H",
  "body": "J. Haislip, K. Ivarsen, D. Reichart, A. LaCluyze, R. Egger, A. Foster, J. \nMoore, A. Oza, M. Schubel, J. Styblova, A. Trotter, J. A. Crain, and M. \nNysewander report:\n\nSkynet observed the Swift/BAT localization of GRB 100316B (Baumgartner et \nal., GCN 10489) with four of the 16\" PROMPT telescopes at CTIO beginning 32 \nseconds after the trigger (19 seconds after notification) in BVRI.\n\nWe detect the afterglow (Baumgartner et al., GCN 10489) in all filters.\n\nAt 34 seconds after the trigger, the afterglow's magnitude was I = 15.61 \n+0.16 -0.14 (statistical) +/- 0.20 (systematic; calibrated to 56 USNO B1 \nstars).\n\nBetween 34 seconds and 2.1 minutes after the trigger, the afterglow faded \nwith a power-law index of about -1.0.\n\nBetween 2.1 and 35 minutes after the trigger, the afterglow faded more \nslowly, with a power-law index of about -0.3.\n\nBetween 35 and 41 minutes after the trigger, the afterglow suddenly \nrebrightened, with a power-law index of about +5.4.\n\nBetween 41 and 49 minutes after the trigger, the afterglow faded with a \npower-law index of about -0.6.\n\nBetween 49 and 95 minutes after the trigger, the afterglow faded more \nrapidly, with a power-law index of about -1.7.\n\nAt 95 minutes after the trigger, the afterglow's magnitude was R = 19.51 \n+0.33 -0.26 (statistical) +/- 0.28 (systematic; calibrated to 40 USNO B1 \nstars).\n\nSkynet's most recent BVRI light curve, calibrated to USNO B1 and NOMAD \nstars, can be found here:\n\nhttp://skynet.unc.edu/grb/grb100316b.png",
  "circularId": 10494,
  "createdOn": 1268734399000,
  "email": "haislip@physics.unc.edu",
  "subject": "GRB 100316B: Skynet/PROMPT Observations of Fading",
  "submitter": "Josh Haislip at U.North Carolina  <haislip@physics.unc.edu>",
  "eventId": "GRB 100316B"
}