[vsnet-grb 490520] GCN/SWIFT_XRT_IMAGE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 02 Jul 21 19:21:20 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     1058804,   Seg_Num: 0
GRB_RA:          168.5813d {+11h 14m 19.5s} (J2000),
                 168.8393d {+11h 15m 21.4s} (current),
                 167.9828d {+11h 11m 55.8s} (1950)
GRB_DEC:         -36.7474d {-36d 44' 50.6"} (J2000),
                 -36.8648d {-36d 51' 53.2"} (current),
                 -36.4748d {-36d 28' 29.2"} (1950)
GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       228 [cnts]
IMG_START_DATE:  19397 TJD;   183 DOY;   21/07/02
IMG_START_TIME:  68929.20 SOD {19:08:49.20} UT,   95.5 [sec] since BAT Trigger Time
CENTROID_X:      286.40,  raw= 286  [pixels]
CENTROID_Y:      322.96,  raw= 323  [pixels]
ROLL:            302.21 [deg]
GAIN:            4
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   58.61
GRB_POS_XRT_Z:   -49.48
IMAGE_URL:       sw01058804000msxps_rw.img
SUN_POSTN:       102.09d {+06h 48m 23s}  +22.97d {+22d 58' 12"}
SUN_DIST:         86.75 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:       21.43d {+01h 25m 42s}   +4.69d {+04d 41' 39"}
MOON_DIST:       136.13 [deg]
MOON_ILLUM:      41 [%]
GAL_COORDS:      282.09, 22.16 [deg] galactic lon,lat of the burst
ECL_COORDS:      186.71,-37.74 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Image.  
COMMENTS:        The object found at this position is either a very bright burst or a cosmic ray hit.  
COMMENTS:        Examine the XRT Image to differentiate (CRs are much more compact); see examples at:  
COMMENTS:        http://www.swift.psu.edu/xrt/XRT_Postage_Stamp_Image_Photo_Gallery.htm .