{
  "bibcode": "1999GCN...273....1W",
  "body": "Peter Woods, Marc Kippen, Georgia Richardson (UAH/MSFC), and Chryssa\nKouveliotou (USRA/MSFC) report on behalf of the BATSE team :\n\nWe have classified the two bursts mentioned in GCN 271 (BATSE triggers\n7456 and 7460) as classical GRBs.  The first is a single pulse lasting\n~ 0.5 sec with substructure and a very hard spectrum (photon index ~\n-1).  The second event is much softer (photon index ~ -2) and longer\n(~ 25 sec).  Although these bursts are positionally consistent with\none another (within 1 sigma), neither shows characteristics consistent\nwith any of the other known SGRs.  Their properties indicate they are\nclassical GRBs.\n\nWe have searched the DISCLA data for burst emission (1.024 sec time\nresolution) at the Konus event times reported in GCN 271.  The\nlocations of triggers 7456 and 7460 are not occulted at the times\ngiven for 990307, but no bursts are detected.  For 990308a, we detect\nthe trigger (7456) and a phosphorescence spike at T+45 sec.",
  "circularId": 273,
  "createdOn": 921082642000,
  "email": "marc.kippen@msfc.nasa.gov",
  "subject": "GRB 990308a and GRB 990308b",
  "submitter": "R. Marc Kippen at BATSE/UAH/MSFC  <marc.kippen@msfc.nasa.gov>",
  "eventId": "GRB 990308A"
}