{
  "bibcode": "2006GCN..5200....1S",
  "body": "P. Schady (MSSL-UCL), A. P. Beardmore (U Leicester),\nF. E. Marshall (NASA/GSFC), D. M. Palmer (LANL), E. Rol (U Leicester)\nand G. Sato (GSFC/JSPS/USRA) report on behalf of the Swift Team:\n\nAt 23:54:33 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated GRB 060602B (trigger=213190).  Swift slewed immediately \nto the burst. The BAT on-board calculated location is \nRA,Dec 267.380, -28.109 {17h 49m 31s, -28d 06' 31\"} (J2000)\nwith an uncertainty of 3 arcmin (radius, 90% containment, including \nsystematic uncertainty).  The BAT light curve showed a single-peaked\nstructure with a duration of about 20 sec.  The peak count rate\nwas ~1000 counts/sec (15-350 keV), at 7 sec after the trigger. \n\nThe XRT began taking data at 23:55:56 UT, 83 seconds after the BAT\ntrigger. We find a faint uncatalogued source in the first 246s of\ndown-linked PC mode data at RA,Dec (J2000) = 17 49 31.7, -28 08 03.7\nwith an uncertainty of 3.9 arcsec (90% containment). This is 92\narcsec from the on-board BAT position. This source is not consistent\nwith the BOOTES-IR candidate reported in GCN 5198. \n\nUVOT took a finding chart exposure of 100 seconds with the White\n(160-650 nm) filter starting 89 seconds after the BAT trigger. No\nafterglow candidate has been found in the initial data products. The\n2.7'x2.7' sub-image covers 25% of the BAT error circle. The typical\n3-sigma upper limit has been about 18.5 mag. The 8'x8' region for the\nlist of sources generated on-board covers 100% of the BAT error\ncircle. The list of sources is typically complete to about 18 mag. We\nnote that this is a crowded field and that a large, but uncertain\nextinction is expected.",
  "circularId": 5200,
  "createdOn": 1149296013000,
  "email": "ps@mssl.ucl.ac.uk",
  "subject": "GRB 060602B: Swift detection of a burst",
  "submitter": "Patricia Schady at MSSL/Swift  <ps@mssl.ucl.ac.uk>",
  "eventId": "GRB 060602B"
}