{
  "bibcode": "1999GCN...349....1P",
  "body": "H. Pedersen, J. Hjorth, B. L. Jensen (Copenhagen), M. B. Rasmussen (Aarhus), \nA. O. Jaunsen (Oslo), and K. Hurley (UCBerkeley/SSL) report: \n\n\"We have observed the field toward the Ulysses + KONUS-WIND + NEAR IPN \nlocalization of GRB 990527 (GCN #347) with the DFOSC at the Danish 1.54-m \ntelescope on La Silla. The FOV was 13.4' x 13.4' and thus covers most of \nthe IPN diamond. Five 8 min exposures and one 10 min exposure were obtained \nin the R band between 29.33 May and 29.44 May 1999 UT. The seeing FWHM was \n2.0\". Seven additional 10 min R band exposures were obtained between \n30.33 May and 30.45 May 1999 UT, in 1.1\" seeing. All images were taken in \nstrong moon-light. The combined exposure covers 12.5' x 12.5'. \n\nVisual inspection of the images revealed no object inside the IPN diamond \nthat was not present on the DSS-2 ('Second Epoch Southern' survey, UK Schmidt, \nIIIaF + RG610 red plate) and brighter than the DSS-2 magnitude limit. \nComparison between the images obtained on 29.4 May and 30.4 May revealed no \nsignificantly variable object above a magnitude limit of R = 22.0.\n\nFor finding charts, see http://www.astro.ku.dk/~holger/g/GRB990527/news.html . \nThis page also gives details on two stars, which stand out in comparison to\nthe DSS; both are off the error box, and non-variable during the CCD \nobservations.\"",
  "circularId": 349,
  "createdOn": 928167671000,
  "email": "holger@astro.ku.dk",
  "subject": "GRB990527 Optical Observations",
  "submitter": "Holger Pedersen at Copenhagen U Obs  <holger@astro.ku.dk>",
  "eventId": "GRB 990527"
}