{
  "bibcode": "2000GCN...699....1P",
  "body": "E. Palazzi, N. Masetti, E. Pian, F. Frontera (ITESRE, CNR, Bologna), A.J. \nCastro-Tirado (LAEFF, IAA), J. Hjorth (Univ. of Copenhagen), E. Rol,\nE.P.J. van den Heuvel (Univ. of Amsterdam), J. Greiner (AIP), O. Marco, J.\nBrewer and O. Hainaut (ESO), J.A.R. Caldwell (SAAO, observing on behalf of\nthe PLANET collaboration), N.  Suntzeff (CTIO), and M. Feroci (IAS, CNR,\nRome), on behalf of a larger collaboration, report: \n\n\"Optical R-band images of the X-ray afterglow error box (GCNs #684, #685) \nof GRB000529 (GCN #676) were acquired at three different epochs with four \ntelescopes as reported in the following table:\n \n     (UT)          Telescope      Texp(sec)   Seeing(\")   R_lim(3-sigma)  \n \n 2000 May 31.15     SAAO 1m         3000        1.4         22.7\n      May 31.44     CTIO 4m          900        1.0         24.0\n      May 31.44     ESO 2.2m         600        1.0         22.7\n      Jun  3.42     ESO NTT          100        1.4         22.3\n                      \n\nPhotometric calibration was performed using standard stars in the Landolt\nT Phe sequence (Landolt 1992, AJ 104, 340).  Comparison of the images with\nthe DSS-II red survey does not reveal any new object above the DSS limit\n(R~21.5). Unfortunately not all the images did cover the whole error box. \nThe comparison among the overlapping regions of the acquired frames at the\ndifferent epochs does not reveal any object with significant brightness\nvariation down to a 3-sigma limiting magnitude of R ~22.3\".\n\nThis message can be cited.",
  "circularId": 699,
  "createdOn": 960910895000,
  "email": "pian@tesre.bo.cnr.it",
  "subject": "Optical Follow-up of GRB000529 Error Box",
  "submitter": "Elena Pian at ITESRE-CNR,Bologna  <pian@tesre.bo.cnr.it>",
  "eventId": "GRB 000529"
}