{
  "bibcode": "2007GCN..6969....1I",
  "body": "M. Im, I. Lee (Seoul National University), and Y. Urata\n  (Saitama University) on behalf of the EAFON team:\n\n   Using the Mt. Lemmon (Arizona, US) 1.0m telescope\n  operated by the Korea Astronomy Space Science Institute,\n  we continued our observation of GRB071010B (GCN 6871,\n  Markwardt et al.), beginning at 11:00:20 UT on Oct 21.\n  (10.59 days after the burst).\n   Now, the optical afterglow (GCN 6873, Oksanen et al.) is very faint,\n  and we have only a very marginal detection in our data.\n   The faintness of the afterglow further confirms the light curve break\n  (GCN6935, Kann et al.; GCN6957, Im, Lee, and Urata, et al.),\n  and the GRB is quickly fading.\n\n   Photometry of the object is given below.\n\n\n  t_start (UT)    Filter    exp (sec)    R-mag   err\n-----------------------------------------------------\n  Oct. 21,\n  11:00:20          R       16x300       23.0    0.6\n\n\n   This message may be cited.",
  "circularId": 6969,
  "createdOn": 1193014984000,
  "email": "mim@astro.snu.ac.kr",
  "subject": "GRB 071010B: Fading quickly",
  "submitter": "Myungshin Im at Seoul Nat U  <mim@astro.snu.ac.kr>",
  "eventId": "GRB 071010B"
}