{
  "bibcode": "2007GCN..6339....1S",
  "body": "H. Swan (U Mich), I. Smith (Rice), C. Akerlof (U Mich), E. Rykoff (U\nMich), and M. Skinner (Boeing) report on behalf of the MARGE collaboration:\n\nThe AEOS Burst Camera (ABC) on the AEOS telescope, located at the Maui \nSpace Surveillance System on Haleakala, observed the fading counterpart \nto GRB070419A (Swift trigger 276205 (GCN 6302)). The images are \nunfiltered 10s exposures which started at 10:57:41 UT (~58 minutes after \nthe trigger) and ended at 11:53:52 UT.\n\nAfter coadding our images in sets of 10, we detect the OT first \nidentified by Chornock et al (GCN 6304). A preliminary analysis gives a \nmagnitude of approximately 20.5+/-0.2 at a mid time of 10:59:11 UT. \nUsing the SDSS data provided by Cool et al. (GCN 6318), we calibrate the\nOT to the r band magnitude of the nearby 20.434 mag star located at \n(J2000) RA = 182.73852, DEC = 39.93033. We find that the ABC data fades \n  as a power law decay with  index  ~-1.1, consistent with the \ndetections  reported by Nishiura et al. (GCN 6308), Smith et al. (GCN \n6315), Updike  et al. (GCN 6317), Iizuka et al. (6317) (prior the ABC \nobservations) and Fu et al. (GCN 6311) (after the ABC observations).",
  "circularId": 6339,
  "createdOn": 1177096323000,
  "email": "hflewell@umich.edu",
  "subject": "GRB 070419A: MARGE Observations",
  "submitter": "Heather Swan at U.of Michigan/ROTSE  <hflewell@umich.edu>",
  "eventId": "GRB 070419A"
}