{
  "bibcode": "2012GCN.13097....1I",
  "body": "Myungshin Im, Jae-Woo Kim, and Duho Kim (CEOU/Seoul National Univ.)\n\nWe observed GRB 120324A (Zhang et al., GCN 13090) in\nr,i,z,Y filters using CQUEAN camera on the 2.1m Otto-Struve\ntelescope at McDonald Observatory, Texas, US.\n\nThe observation started at 2012-03-24 10:31:44 UT,\nor about 4.5 hours after the BAT alert.\nWe find a faint object in i,z,Y images at the edge of\nthe error circle of the enhanced XRT position\n(Evans et al. GCN 13093).\n\nThe coordinate of the object is\n\n   RA=19:24:18.78, Dec=24:07:47.3 (J2000)\n\nwith an error of 0.7\".\n\nDue to high stellar density in this field, it is not clear\nif this object is the optical counterpart of the GRB\nFurther observations are planned to check the variability\nof this source. The finding chart of the object is available at\nhttp://astro.snu.ac.kr/~mim/grb120324a/grb120324a_cquean_i.gif\n\nWe note that an optical candidate reported by\nGuidorzi et al. (GCN 13092) is clearly seen in both a POSS2 image\nretrieved from the Digitized Sky Survey and our CQUEAN images,\nmaking it less likely that the object is a GRB afterglow.\n\nWe thank Karl Gebhardt and his observing team for their help\nwith the observation.",
  "circularId": 13097,
  "createdOn": 1332604045000,
  "email": "mim@astro.snu.ac.kr",
  "subject": "GRB 120324A: CQUEAN rizY Observation",
  "submitter": "Myungshin Im at Seoul Nat U  <mim@astro.snu.ac.kr>",
  "eventId": "GRB 120324A"
}