{
  "bibcode": "2000GCN...810....1N",
  "body": "R. J. Nemiroff, D. Perez-Ramirez, J. B. Rafert, \nW. E. Pereira, C. Ftaclas, and J. Fernandez \n(Michigan Tech)\nreport on behalf of the CONCAM collaboration:\n\n\"The CONtinuous CAMera (CONCAM) operating on the roof of the \nRMT building at Kitt Peak National Observatory in Arizona has \nrecorded data that provides very crude limits on the attributes \nof the OT through non-detection.  \n\nBefore the GRB Trigger\nFrom (2000 September 26.135) to (2000 September 26.263), spanning from\nroughly 20.6 hours to 17.5 hours before the Konus trigger, no obvious\noptical transient brighter than visual magnitude 4 was recorded. \n\nAfter the GRB Trigger\nFrom (2000 September 27.100) to (2000 September 27.252), spanning from\nroughly 2.6 hours to 6.2 hours after the Konus trigger, no obvious\noptical transient brighter than visual magnitude 4 was recorded.\n\nThese above results were derived from a visual inspection of a series \nof two-minute exposures of the nearly 2 pi steradian CONCAM field.  \nA more detailed inspection of the data might improve these magnitude \nlimits to approximately visual magnitude 6.  Data remains freely \navailable at http://concam.net .",
  "circularId": 810,
  "createdOn": 970189437000,
  "email": "nemiroff@mtu.edu",
  "subject": "CONCAM crude optical limits before and after GRB000926",
  "submitter": "Robert Nemiroff at Michigan Tech.  <nemiroff@mtu.edu>",
  "eventId": "GRB 000926"
}