{
  "bibcode": "1999GCN...270....1H",
  "body": "K. Hurley (UC Berkeley Space Sciences Laboratory) on behalf of the Ulysses GRB team, and M. Feroci (IAS -\nRome) on behalf of the BeppoSAX GRB Team, report:\n\nA refined IPN annulus for GRB981220 has been obtained\nby triangulation between Ulysses and BeppoSAX.  It is\ncentered at RA(2000)=347.398 degrees, Delta(2000)=+07.340 degrees,\nwith radius 67.118 degrees, and 3 sigma half-width 0.015\ndegrees.  The radio source reported by Frail et al. (GCN 170)\nand by Galama et al. (GCN 168) lies 0.027 degrees from the\ncenter line of the annulus, and is therefore outside it.\nFurther refinement in the annulus half-width is possible,\nbut we can state with some certainty that the position of\nthe radio source is incompatible with that of the gamma-ray\nburst.",
  "circularId": 270,
  "createdOn": 920487212000,
  "email": "khurley@sunspot.ssl.berkeley.edu",
  "subject": "GRB981220, IPN localization",
  "submitter": "Kevin Hurley at UCBerkeley/SSL  <khurley@sunspot.ssl.berkeley.edu>",
  "eventId": "GRB 981220"
}