{
  "bibcode": "1999GCN...358....1R",
  "body": "Optical Observations of GRB990627\n\n\nE. Rol (U. of Amsterdam), E. Palazzi, N. Masetti, E. Pian, F. Frontera\n(TeSRE, CNR, Bologna), T.J. Galama, P.M. Vreeswijk, J. van Paradijs (U. of\nAmsterdam), C. Kouveliotou (NASA/MSFC), G. Bakos, K. Sahu (STScI), P.\nSackett (U. of Groningen), J. Menzies (SAAO), L. Nicastro (IFCAI, CNR,\nPalermo), E. Costa, (IAS, CNR, Rome), on behalf of a large collaboration\nincluding the PLANET Team and the BeppoSAX GRB optical follow-up Team,\nreport:\n\n\n\"We have observed the error box of GRB990627 (Gandolfi, GCN #356)\nwith the Sutherland 1.0m telescope (South Africa) in the R band\non June 28.138-28.193, for a total exposure time of 4200 sec.\nComparison of the summed image with the DSS (2nd Epoch Survey of the\nUK Schmidt; RG610 filter) does not show evidence of any new source above\nthe DSS plate limit.\n\nPhotometry linked to the USNO-A1.0 star at RA = 01h 48m 15s.61, Dec = -77o\n04' 37\".1 (J2000), which has R = 15.8, implies a 3-sigma magnitude limit\nof R ~ 21 for the sum image.\n\nWe have also inspected the positions of the four radio sources found by\nSubrahmanyan et al. (GCN #357) in the GRB990627  error box.\nNo object brighter than our limiting magitude is seen at any of them.\n\n\nThis message can be cited.\"",
  "circularId": 358,
  "createdOn": 930765558000,
  "email": "pian@tesre.bo.cnr.it",
  "subject": "Optical Observations of GRB990627",
  "submitter": "Elena Pian at ITESRE-CNR,Bologna  <pian@tesre.bo.cnr.it>",
  "eventId": "GRB 990627"
}