{
  "bibcode": "2010GCN.10407....1I",
  "body": "M. Im (CEOU/Seoul National Univ) and Y. Urata (NCU)\n  on behalf of EAFON team.\n\n   We observed GRB100212A (Grupe et al. GCN 10401) in R and V\n  using the 1.0m telescope at Mt. Lemmon (Arizona, US) operated by\n  the Korea Astronomy Space Science Institute.\n   The observation started at Feb. 13, 02:05:14 UT, about 12 hours\n  after the BAT trigger.\n\n   The stacked R-band image shows a marginal detection of\n  the afterglow with R ~ 22.5 +- 0.2 mag, at the location reported by\n  Malesani et al. (GCN 10402).  The mid-point for the R-band imaging\n  is 02:17:36 UT. The object does not appear in a stacked V-band\n  image, which was taken right after the R-band observation.\n   Our obseravation shows that the afterglow candidate faded\n  significantly since the report by Malesani et al. (GCN 10402),\n  confirming that this is indeed a GRB afterglow.\n   The photometry was calibrated against the USNO star (GCN 10402).\n\n   We thank the LOAO operator, J. Yoon for her assistance of this\n  observation.",
  "circularId": 10407,
  "createdOn": 1266059050000,
  "email": "mim@astro.snu.ac.kr",
  "subject": "GRB 100212A: LOAO R-band Detection/V-band Observation",
  "submitter": "Myungshin Im at Seoul Nat U  <mim@astro.snu.ac.kr>",
  "eventId": "GRB 100212A"
}