{
  "bibcode": "2012GCN.13139....1J",
  "body": "M. Jang, M. Im, (SNU), & Y. Urata (NCU) on behalf of EAFON\r\n\r\nWe observed GRB 120326A (120326A et al., GCN 13105)\r\nin R-band with a 1 m telescope at Mt. Lemmon, Arizona, U.S.\r\nThe obsevation started at 09:06:33 2012-03-26 UT, ~ 8 hours\r\nafter the burst alert.\r\n\r\nWe totally took 6 frames with 300 sec of exposure time and found\r\na bright optical afterglow in each frame (Im et al. GCN 13117,\r\nKlotz et al. GCN 13107, Guidorzi et al. GCN 13111, Walker et al. GCN 13112,\r\nDintinjana et al. GCN 13113, Kuin et al. GCN 13114).\r\nPreliminary photometry values are shown below. The R magnitudes were calibrated\r\nwith three nearby USNO B1.0 stars, USNO-B1.0 1592-0143334, 1592-0143322,\r\nand 1592-0143349\r\n\r\nMid-time[sec] R-mag   Err\r\n================================\r\n27639    17.63   0.06\r\n27964    17.53   0.04\r\n28282    17.61   0.04\r\n28601    17.84   0.03\r\n28915    17.90   0.03\r\n29239    18.08   0.03\r\n\r\nWe thank the LOAO operator, I. Baek for her assistance with this observation.",
  "circularId": 13139,
  "createdOn": 1332854438000,
  "email": "rigel103@snu.ac.kr",
  "subject": "GRB 120326A: LOAO R-band Observations",
  "submitter": "Minsung Jang at Seoul National U  <rigel103@snu.ac.kr>",
  "eventId": "GRB 120326A"
}