[vsnet-grb 388848] GCN/SWIFT_XRT_IMAGE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 03 Dec 18 12:10:35 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     874475,   Seg_Num: 0
GRB_RA:          108.3454d {+07h 13m 22.8s} (J2000),
                 108.5045d {+07h 14m 01.0s} (current),
                 107.9250d {+07h 11m 42.0s} (1950)
GRB_DEC:         -39.8091d {-39d 48' 32.7"} (J2000),
                 -39.8424d {-39d 50' 32.6"} (current),
                 -39.7224d {-39d 43' 20.7"} (1950)
GRB_ERROR:       5.0 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       36 [cnts]
IMG_START_DATE:  18455 TJD;   337 DOY;   18/12/03
IMG_START_TIME:  43801.17 SOD {12:10:01.17} UT,   73.3 [sec] since BAT Trigger Time
CENTROID_X:      286.17,  raw= 286  [pixels]
CENTROID_Y:      242.88,  raw= 243  [pixels]
ROLL:            142.44 [deg]
GAIN:            2
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -130.85
GRB_POS_XRT_Z:   -47.67
IMAGE_URL:       sw00874475000msxps_rw.img
SUN_POSTN:       249.72d {+16h 38m 54s}  -22.13d {-22d 07' 39"}
SUN_DIST:        108.25 [deg]   Sun_angle= 9.4 [hr] (West of Sun)
MOON_POSTN:      205.67d {+13h 42m 41s}   -5.10d {-05d 06' 13"}
MOON_DIST:        92.20 [deg]
MOON_ILLUM:      15 [%]
GAL_COORDS:      251.20,-13.10 [deg] galactic lon,lat of the burst
ECL_COORDS:      120.27,-61.33 [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 .