{
  "bibcode": "1999GCN...348....1P",
  "body": "H. Pedersen, J. Hjorth, B. L. Jensen (Copenhagen), H. Korhonen, and \nM. I. Andersen (NOT) report:\n\nWe have conducted a second (cf. GCN 340) series of imaging using \nthe 2.56-m Nordic Optical Telescope. The StanCam instrument was used, \ngiving a field of 3' x 3', hence significantly smaller than the 3' \nradius error circle (GCN 333).\n\nThree 5-min R-band images were acquired on May 25.927 UT. The seeing \nwas 0.9\" FWHM.\n\nWe find no evidence for variability between the two observing epochs. \nSpecifically, the sn-like configuration mentioned in GCN 340 does not \nshow any variability in support of its association with the high \nenergy event. The sum image from the two runs can be inspected at \nhttp://www.astro.ku.dk/~holger/g/XRT990520/news.html\n\nThe new images do not cover the position of the radio source discovered \nby Frail et al. (GCN 334). \n\nFor the optical counterpart to this latter source (cf. GCN 335, 336, \n338, 341, 345) we have deduced the brightness at the epoch of our first\nobserving session, May 20.90 UT, finding R = 20.84 +- 0.05.",
  "circularId": 348,
  "createdOn": 927961137000,
  "email": "holger@astro.ku.dk",
  "subject": "X-ray/GRB 1SAX J0835.9+5118, Optical Observation",
  "submitter": "Holger Pedersen at Copenhagen U Obs  <holger@astro.ku.dk>"
}