////////////////////////////////////////////////////////////////////// TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 21 Apr 05 04:12:50 UT NOTICE_TYPE: Swift-BAT GRB Position TRIGGER_NUM: 115135, Seg_Num: 0 GRB_RA: 307.241d {+20h 28m 58s} (J2000), 307.229d {+20h 28m 55s} (current), 307.352d {+20h 29m 24s} (1950) GRB_DEC: +73.665d {+73d 39' 54"} (J2000), +73.683d {+73d 40' 59"} (current), +73.496d {+73d 29' 47"} (1950) GRB_ERROR: 4.00 [arcmin radius, statistical only] GRB_INTEN: 22529 [cnts] Peak=379 [cnts/sec] TRIGGER_DUR: 5.504 [sec] TRIGGER_INDEX: 476 E_range: 25-100 keV BKG_INTEN: 182684 [cnts] BKG_TIME: 15040.00 SOD {04:10:40.00} UT BKG_DUR: 48 [sec] GRB_DATE: 13481 TJD; 111 DOY; 05/04/21 GRB_TIME: 15111.61 SOD {04:11:51.61} UT GRB_PHI: 4.01 [deg] GRB_THETA: 25.36 [deg] SOLN_STATUS: 0x83 RATE_SIGNIF: 9.84 [sigma] IMAGE_SIGNIF: 6.00 [sigma] MERIT_PARAMS: +1 +0 +0 +2 +2 +0 +0 +0 -23 +1 SUN_POSTN: 29.03d {+01h 56m 06s} +11.88d {+11d 52' 45"} SUN_DIST: 76.30 [deg] MOON_POSTN: 173.72d {+11h 34m 53s} +5.72d {+05d 43' 23"} MOON_DIST: 95.55 [deg] MOON_ILLUM: 89 [%] GAL_COORDS: 107.16, 19.53 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 46.01, 75.82 [deg] ecliptic lon,lat of the burst (or transient) COMMENTS: SWIFT-BAT GRB Coordinates. COMMENTS: This is a rate trigger. COMMENTS: A point_source was found. COMMENTS: This does not match any source in the on-board catalog. COMMENTS: This does not match any source in the ground catalog. COMMENTS: This is a GRB. COMMENTS: Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection. ////////////////////////////////////////////////////////////////////// TITLE: GCN/SWIFT NOTICE NOTICE_DATE: Thu 21 Apr 05 04:14:14 UT NOTICE_TYPE: Swift-XRT Position TRIGGER_NUM: 115135, Seg_Num: 0 GRB_RA: 307.2530d {+20h 29m 01s} (J2000), 307.2408d {+20h 28m 58s} (current), 307.3633d {+20h 29m 27s} (1950) GRB_DEC: +73.6528d {+73d 39' 10"} (J2000), +73.6707d {+73d 40' 14"} (current), +73.4840d {+73d 29' 03"} (1950) GRB_ERROR: 5.8 [arcsec radius, statistical plus systematic] GRB_INTEN: 2962.15 [arb] GRB_SIGNIF: 6.63 [sigma] GRB_DATE: 13481 TJD; 111 DOY; 05/04/21 GRB_TIME: 15222.32 SOD {04:13:42.32} UT TAM[0-3]: 327.61 237.19 261.32 242.39 AMPLIFIER: 2 WAVEFORM: 134 SUN_POSTN: 29.03d {+01h 56m 06s} +11.88d {+11d 52' 46"} SUN_DIST: 76.30 [deg] MOON_POSTN: 173.73d {+11h 34m 56s} +5.72d {+05d 42' 56"} MOON_DIST: 95.57 [deg] MOON_ILLUM: 89 [%] GAL_COORDS: 107.15, 19.52 [deg] galactic lon,lat of the burst ECL_COORDS: 45.95, 75.81 [deg] ecliptic lon,lat of the burst COMMENTS: SWIFT-XRT Coordinates. COMMENTS: WARNING: XRT alignment calibration is on-going, and there may be COMMENTS: residual systematic offsets of several arcseconds not accounted for yet COMMENTS: by our on-board position determination algorithm. We have increased COMMENTS: the estimated error circle radius to take this into account.