{
  "bibcode": "2006GCN..5736....1S",
  "body": "H. Swan (U. Michigan), C. Akerlof (U. Michigan), M. Skinner (AMOS \nObservatory, Boeing LTS), report on behalf of the MARGE collaboration:\n\nThe AEOS Burst Camera (ABC) began imaging GRB060930 (GCN 5665) Sept 30 \n09:15:47.3 UTC, ~11 minutes after the GRB was detected, obtaining ~ 2 \nhrs of images of the error box. We coadded 10s images into sets of\n20. Comparison of these images with images taken on Oct 5th, 2006\nreveals no optical counterpart within the 2.5 arc minute error radius.\nWe have a 3 sigma limiting magnitude of 21.0 for our coadded images.\n\n[GCN OPS NOTE(19oct06): Per author's request, the Subject line was corrected\nto the 060930 burst.]",
  "circularId": 5736,
  "createdOn": 1161292661000,
  "email": "hflewell@umich.edu",
  "subject": "GRB 060930: MARGE Optical Limits",
  "submitter": "Heather Swan at U.of Michigan/ROTSE  <hflewell@umich.edu>",
  "eventId": "GRB 060930"
}