[vsnet-grb 71208] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 13 Apr 08 03:09:06 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     309096,   Seg_Num: 0
GRB_RA:          287.2970d {+19h 09m 11.2s} (J2000),
                 287.4262d {+19h 09m 42.2s} (current),
                 286.5165d {+19h 06m 03.9s} (1950)
GRB_DEC:         -27.6785d {-27d 40' 42.5"} (J2000),
                 -27.6647d {-27d 39' 53.0"} (current),
                 -27.7595d {-27d 45' 34.0"} (1950)
GRB_ERROR:       2.9 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  14569 TJD;   104 DOY;   08/04/13
IMG_START_TIME:  10611.00 SOD {02:56:51.00} UT,   151.7 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        21.81d {+01h 27m 15s}   +9.15d {+09d 09' 03"}
SUN_DIST:         98.09 [deg]   Sun_angle= 6.3 [hr] (West of Sun)
MOON_POSTN:      120.73d {+08h 02m 56s}  +23.00d {+22d 59' 47"}
MOON_DIST:       167.11 [deg]
MOON_ILLUM:      54 [%]
GAL_COORDS:        9.53,-15.83 [deg] galactic lon,lat of the burst
ECL_COORDS:      285.33, -5.16 [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