[vsnet-grb 496892] GCN/SWIFT_XRT_POSITION_UPDATE
Bacodine
vxw at capella2.gsfc.nasa.gov
Wed Aug 25 16:08:34 JST 2021
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Wed 25 Aug 21 07:08:34 UT
NOTICE_TYPE: Swift-XRT Position UPDATE
TRIGGER_NUM: 1070298, Seg_Num: 0
GRB_RA: 238.7858d {+15h 55m 08.59s} (J2000),
239.2058d {+15h 56m 49.40s} (current),
237.8194d {+15h 51m 16.65s} (1950)
GRB_DEC: -54.0617d {-54d 03' 42.1"} (J2000),
-54.1238d {-54d 07' 25.6"} (current),
-53.9154d {-53d 54' 55.4"} (1950)
GRB_ERROR: 1.9 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN: 1.00e-10 [erg/cm2/sec]
GRB_SIGNIF: 10.00 [sigma]
IMG_START_DATE: 19451 TJD; 237 DOY; 21/08/25
IMG_START_TIME: 24904.00 SOD {06:55:04.00} UT, 96.7 [sec] since BAT Trigger Time
TAM[0-3]: 100.00 100.00 100.00 100.00
AMPLIFIER: 1
WAVEFORM: 31
SUN_POSTN: 154.30d {+10h 17m 11s} +10.65d {+10d 38' 53"}
SUN_DIST: 95.66 [deg] Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN: 7.66d {+00h 30m 39s} -1.36d {-01d 21' 26"}
MOON_DIST: 110.19 [deg]
MOON_ILLUM: 91 [%]
GAL_COORDS: 327.87, -0.34 [deg] galactic lon,lat of the burst
ECL_COORDS: 248.76,-32.90 [deg] ecliptic lon,lat of the burst
COMMENTS: SWIFT-XRT Coordinates.
COMMENTS: This Notice was ground-generated -- not flight-generated.
COMMENTS: This is an Update Notice -- the RA,Dec values herein supersede the previous XRT_POS Notice.
COMMENTS: TAM values, flux and significance fields are not valid.
COMMENTS: This position was automatically generated on the ground using
COMMENTS: Photon Counting data telemetered via TDRSS (SPER data).
COMMENTS: See http://www.swift.ac.uk/sper/docs.php for details.
COMMENTS: This position was enhanced using UVOT field astrometry.
COMMENTS: The probability that this is a serendipitous source in the
COMMENTS: SPER window is 0.11% < P(seren) < 0.58%.
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