[vsnet-grb 456801] GCN/SWIFT_XRT_IMAGE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 29 Aug 20 14:02:21 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     993768,   Seg_Num: 0
GRB_RA:          251.2096d {+16h 44m 50.3s} (J2000),
                 251.1330d {+16h 44m 31.9s} (current),
                 251.3990d {+16h 45m 35.7s} (1950)
GRB_DEC:         +72.3273d {+72d 19' 38.2"} (J2000),
                 +72.2902d {+72d 17' 24.6"} (current),
                 +72.4165d {+72d 24' 59.5"} (1950)
GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       221 [cnts]
IMG_START_DATE:  19090 TJD;   242 DOY;   20/08/29
IMG_START_TIME:  50503.11 SOD {14:01:43.11} UT,   128.7 [sec] since BAT Trigger Time
CENTROID_X:      274.78,  raw= 275  [pixels]
CENTROID_Y:      309.32,  raw= 309  [pixels]
ROLL:            275.48 [deg]
GAIN:            4
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   26.46
GRB_POS_XRT_Z:   -76.88
IMAGE_URL:       sw00993768000msxps_rw.img
SUN_POSTN:       158.43d {+10h 33m 43s}   +9.05d {+09d 03' 18"}
SUN_DIST:         82.20 [deg]   Sun_angle= -6.2 [hr] (East of Sun)
MOON_POSTN:      296.70d {+19h 46m 48s}  -23.60d {-23d 35' 42"}
MOON_DIST:       100.73 [deg]
MOON_ILLUM:      87 [%]
GAL_COORDS:      104.50, 35.19 [deg] galactic lon,lat of the burst
ECL_COORDS:      130.30, 81.30 [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 .