{
  "bibcode": "2006GCN..5853....1H",
  "body": "J. P. Halpern & E. Armstrong (Columbia U.) report on behalf of\nthe MDM Observatory GRB follow-up team:\n\n\"Continuing observations of GRB 061121 for a fourth night\non the MDM 2.4m telescope yield the following results,\nusing the same calibration as in GCN 5847:\n\n ---------------------------------------------------------\n  Date(UT)  Mid-time(UT)  t-t0(hr)  Exp(s)   R(mag)  +/-\n ---------------------------------------------------------\n  Nov. 25      11:42       92.33     900     22.69   0.06\n  Nov. 25      12:02       92.66     900     22.64   0.05\n  Nov. 25      12:20       92.96     900     22.75   0.08\n ---------------------------------------------------------\n\nA power-law decay index of -0.979+/-0.015 is fitted to the\nfour nights.\n\nImages and light curve are posted at\n\nhttp://www.astro.columbia.edu/~jules/grb/061121/\n\nThis message may be cited.\"",
  "circularId": 5853,
  "createdOn": 1164483951000,
  "email": "jules@astro.columbia.edu",
  "subject": "GRB 061121: MDM Continued Monitoring",
  "submitter": "Jules Halpern at Columbia U.  <jules@astro.columbia.edu>",
  "eventId": "GRB 061121"
}