{
  "bibcode": "2004GCN..2721....1W",
  "createdOn": 1095447111000,
  "submitter": "Kuiyun Huang at IANCU  <d919003@astro.ncu.edu.tw>",
  "eventId": "XRF 040916",
  "version": 2,
  "email": "d919003@astro.ncu.edu.tw",
  "editedBy": "Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov>",
  "circularId": 2721,
  "editedOn": 1777053008443,
  "subject": "XRF040916: optical follow-up observations",
  "body": "XRF040916: optical follow-up observations\n\nW.L. Wu, K.Y. Huang, W.H. Ip (NCU)\nY. Urata, T. Tamagawa (RIKEN) report :\n \n\"We have observed the optical candidate reported by Kilmaritin et\nal. (GCN 2715) with 1.0m telescope at Lulin Observatory (National\nCentral University, Taiwan). We obtain I-band images with 600 sec\nexposure on 2004 16 Sep. 16.68 UT (16.3 hr after burst) and 17\nSep. 12.51 UT (1.5 day after burst). We can not find any variablity for\nthe source.  The brithness of the source are\n\n                         OT candidate      seeing\n     16 Sep. 16.68 UT    I = 19.6        2.0 arcsec\n     17 Sep. 12.51 UT    I = 19.7        2.5 arcsec\n\n\n The limiting magnitude is around 20.1 which comparison with USNO A.2\nred magnitude.\"\n\n     This message may be cited"
}