Notice date: 2009-08-31T17:17:48
Trigger num: 361471
Notice parts:
[body.txt]
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Mon 31 Aug 09 17:17:48 UT
NOTICE_TYPE: Swift-BAT Sub-Threshold Position
TRIGGER_NUM: 361471, Seg_Num: 0
GRB_RA: 261.988d {+17h 27m 57s} (J2000),
262.139d {+17h 28m 33s} (current),
261.210d {+17h 24m 50s} (1950)
GRB_DEC: -26.583d {-26d 34' 57"} (J2000),
-26.590d {-26d 35' 24"} (current),
-26.542d {-26d 32' 31"} (1950)
GRB_ERROR: 4.00 [arcmin radius, statistical only]
GRB_INTEN: 2304 [cnts] Image_Peak=116 [image_cnts]
TRIGGER_DUR: 0.512 [sec]
TRIGGER_INDEX: 176 E_range: 15-50 keV
BKG_INTEN: 37751 [cnts]
BKG_TIME: 62234.95 SOD {17:17:14.95} UT
BKG_DUR: 8 [sec]
GRB_DATE: 15074 TJD; 243 DOY; 09/08/31
GRB_TIME: 62244.93 SOD {17:17:24.93} UT
GRB_PHI: -176.50 [deg]
GRB_THETA: 20.56 [deg]
SOLN_STATUS: 0xA83
RATE_SIGNIF: 49.41 [sigma]
IMAGE_SIGNIF: 6.16 [sigma]
MERIT_PARAMS: +1 +0 +0 -1 +1 -4 +0 +1 +24 +1
SUN_POSTN: 160.06d {+10h 40m 14s} +8.41d {+08d 24' 35"}
SUN_DIST: 104.51 [deg] Sun_angle= -6.8 [hr] (East of Sun)
MOON_POSTN: 297.02d {+19h 48m 05s} -21.64d {-21d 38' 39"}
MOON_DIST: 32.12 [deg]
MOON_ILLUM: 86 [%]
GAL_COORDS: 359.89, 4.56 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 262.83, -3.34 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS: SWIFT-BAT Sub-Threshold 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:
COMMENTS: The IMAGE_SIGNIF is VERY LOW, this is very likely not real.
COMMENTS: Since the foreground interval count rate is less than the bkg interval (SAA exit), this is a questionable detection.
COMMENTS: This trigger occurred at longitude,latitude = 4.49,-8.04 [deg].