{
  "bibcode": "2000GCN...783....1G",
  "body": "J. Gorosabel (DSRI, Copenhagen), J. Hjorth, B. L. Jensen (U. of Copenhagen),\nJ. P. U. Fynbo, A. O. Jaunsen (ESO), M. I. Andersen (U. of Oulu),\nS. Holland (U. of Aarhus), and N. Lund (DSRI, Copenhagen) report: \n\n\"We have carried out optical observations of the corrected Chandra X-ray  \nposition of GRB 000210 (Garcia et al., GCN #548) with the 1.54-m Danish \nTelescope at La Silla, as follows:\n\n  Date (Aug. 2000 UT)   Filter    Exp.(s)  Seeing(\")  \n ----------------------------------------------------\n    22.293 - 22.411        R       7x900      2.2   \n    23.226 - 23.290        R       5x900      2.3\n    24.235 - 24.303        R       4x900      3.0   \n    26.291 - 26.430        V       9x900      1.5\n    27.213 - 27.236        I       2x900      1.4\n    28.211 - 28.241        I       2x1200     1.4\n    29.207 - 29.300        I       7x1200     1.1\n    30.223 - 30.242        I       1200       1.1\n    31.213 - 31.245        B       2x1200     1.5\n ----------------------------------------------------\n\nThe optical source coincident with the Chandra position (Gorosabel et al.,\nGCN #545) is clearly detected in the co-added R, V and I-band images.\nAstrometry based on the USNO-A2.0 catalogue yields for the object\n\n    RA(J2000)  =  01h 59m 15.60s\n    Dec(J2000) = -40d 39' 32.8\"\n\nwith an uncertainty of +/- 1\".  The position is consistent with the two \nupdated Chandra positions derived by Garmire et al. (GCN #782).  A comparison \nof the co-added R-band image with the R-band image taken on Feb 11.03 - 11.08 \n2000 UT (GCN #545) reveals a magnitude variation of 0.03 +/- 0.30 mag. \nTherefore, the object remains constant in brightness within the photometric  \nerrors.  We derive a preliminary magnitude of R = 23.5 +/- 0.2 for the \nobject.\"",
  "circularId": 783,
  "createdOn": 967899725000,
  "email": "jgu@laeff.esa.es",
  "subject": "GRB000210, Optical observations",
  "submitter": "Javier Gorosabel at LAEFF-INTA, Madrid  <jgu@laeff.esa.es>",
  "eventId": "GRB 000210"
}