{
  "bibcode": "2000GCN...745....1H",
  "body": "J. P. Halpern (Columbia U.) & J. Thorstensen (Dartmouth)\nreport on behalf of the MDM Observatory GRB follow-up team:\n\n\"We observed the location of the radio candidate for GRB 000630\n(Berger & Frail GCN #738) in the I band on July 1.29 UT using\nthe MDM 2.4m telescope.  A total exposure time of 25 minutes was \nobtained in seeing of 1.\"5 and under non-photometric conditions.\nWe also obtained 15 minutes of exposure in the R band starting\non July 1.33 UT.  Upper limits at the location of the radio\ncandidate of I > 23.3 and R > 23.2 were obtained, referenced to\nthese comparisons stars as calibrated by Henden (GCN #742):\n\n    Star       RA(2000)    Dec(2000)        R        I \n    -----------------------------------------------------\n     A       14 47 01.67  +41 16 16.9     17.42    16.84\n     B       14 46 59.25  +41 15 52.2     18.59    18.15\n    -----------------------------------------------------\n\nImages of this field are posted at \nhttp://www.astro.bio2.edu/grb/000630\n\nThis message may be cited.\"",
  "circularId": 745,
  "createdOn": 962593393000,
  "email": "jules@astro.columbia.edu",
  "subject": "GRB000630, Optical Observations",
  "submitter": "Jules Halpern at Columbia U.  <jules@astro.columbia.edu>",
  "eventId": "GRB 000630"
}