{
  "bibcode": "2009GCN.10003....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 has continued to observe the afterglow (Haislip et al., GCN 9937) of \nGRB 090926A (Bissaldi, GCN 9933) with two of the 16\" PROMPT telescopes at \nCTIO in RI.\n\nAfter peaking in brightness approximately 1 day after the trigger (Haislip \net al., GCN 9953) and fading with a power-law index of around -1.4 until \napproximately 4 days after the trigger (Haislip, et al., GCN 9982), the \nafterglow faded with a shallower power-law index of around -0.8 until \napproximately 6 days after the trigger (Haislip et al., GCN 9984).\n\nBetween 6 and 11 days after the trigger, the afterglow has been fading with \na steeper power-law index of around -1.7.\n\nAt 11.1 days after the trigger, its magnitude is R = 21.45 +0.22 -0.18 \n(statistical) +/- 0.57 (systematic; calibrated to 172 USNO B1 stars).\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/grb090926a.jpg\n\nContinued observations with larger telescopes are encouraged.",
  "circularId": 10003,
  "createdOn": 1255109080000,
  "email": "haislip@physics.unc.edu",
  "subject": "GRB 090926A: Skynet/PROMPT Observations of Day 6 - 11 Fading",
  "submitter": "Josh Haislip at U.North Carolina  <haislip@physics.unc.edu>",
  "eventId": "GRB 090926A"
}