{
  "bibcode": "2007GCN..6995....1W",
  "body": "G. G. Williams (MMTO) and P. A. Milne (Steward Observatory), on behalf of the\nSuper-LOTIS Collaboration, report:\n\nThe robotic 0.6-m Super-LOTIS telescope began observing the error box\nof GRB 071025 (Swift Trigger 295301, Pagani et al. GCN 6986) at\n04:10:29.3 UT, 95 seconds after the trigger. Our initial observations\ninclude 5 x 10s exposures, 5 x 20s exposures, and 30 x 60s exposures,\nall in the R-band.\n\nWe detect the afterglow reported by Rykoff et al.  (GCN 6987,\nconfirmed by Covino et al. GCN 6988) in the sum of our first ten 60s\nexposures centered on 04:19:39 UT.  We do not detect the afterglow in\nour single 10s or 20s exposures. Using USNO-B1.0 stars we estimate the\nfollowing R-band magnitude and upper limits for the OT:\n\nt_start (UT)     t_mid (UT)     exp t (s)     t_start-t_0 (s)     R Mag\n-----------------------------------------------------------------------------------------------------\n04:10:29.3     04:10:34.3      10               95.3                R > 17.3\n\n04:13:42.1     04:13:52.1      20              288.1               R > 17.8\n\n04:14:08.8     04:19:39.0      600            314.8               R =\n17.97 +/- 0.17\n\nOur upper limit of R > 17.8 was measured near the time of the\nunfiltered m=17.3 peak reported by Rykoff et al. (GCN 6992).\nAdditional observations and analysis are ongoing.",
  "circularId": 6995,
  "createdOn": 1193306068000,
  "email": "ggwilli@gmail.com",
  "subject": "GRB 071025: Early Super-LOTIS Observations",
  "submitter": "Grant Williams at Steward Observatory  <ggwilli@gmail.com>",
  "eventId": "GRB 071025"
}