[vsnet-grb 53177] GCN/SWIFT_BAT_POSITION_RETRACTION

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 07 Aug 07 21:20:56 UT
NOTICE_TYPE:     Swift-BAT GRB Position RETRACTION
TRIGGER_NUM:     287221,   Seg_Num: 0
GRB_RA:          255.635d {+17h 02m 32s} (J2000),
                 255.764d {+17h 03m 03s} (current),
                 254.786d {+16h 59m 09s} (1950)
GRB_DEC:         -37.808d {-37d 48' 27"} (J2000),
                 -37.818d {-37d 49' 05"} (current),
                 -37.737d {-37d 44' 12"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=2950 [image_cnts]
TRIGGER_DUR:     64.000 [sec] 
TRIGGER_INDEX:   20000     E_range: 15-50 keV
BKG_INTEN:       0 [cnts]
BKG_TIME:        0.00 SOD {00:00:00.00} UT
BKG_DUR:         0 [sec]
GRB_DATE:        14319 TJD;   219 DOY;   07/08/07
GRB_TIME:        75661.85 SOD {21:01:01.85} UT
GRB_PHI:         -96.90 [deg]
GRB_THETA:        17.18 [deg]
SOLN_STATUS:     0x431
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    11.77 [sigma]
MERIT_PARAMS:     +1  +0  +0  +6  +1  +1  +0  +1 +52  +1 
SUN_POSTN:       137.46d {+09h 09m 50s}  +16.34d {+16d 20' 15"}
SUN_DIST:        122.14 [deg]   Sun_angle= -7.9 [hr] (East of Sun)
MOON_POSTN:       68.88d {+04h 35m 31s}  +27.33d {+27d 19' 46"}
MOON_DIST:       168.02 [deg]
MOON_ILLUM:      28 [%]
GAL_COORDS:      347.61,  2.42 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      258.29,-14.95 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This is an image trigger.  (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)  
COMMENTS:        A point_source was found.  
COMMENTS:        This does not match any source in the on-board catalog.  
COMMENTS:        This does not match any source in the ground catalog.  
COMMENTS:        The position is inside the galaxy NGC6281 (of total mag=5.40 and dia=3600.00 arcmin).  
COMMENTS:        This is not a GRB.  
COMMENTS:           
COMMENTS:        This is a RETRACTION of a previous notice that identified this as a GRB -- it is NOT a GRB.  
COMMENTS:           
COMMENTS:        This trigger occured while the StarTracker had lost lock, so it is possibly bogus.  
COMMENTS:        This Notice was ground-reprocessed from flight-data.  
COMMENTS:          
COMMENTS:        This is NOT a GRB.  It a false trigger due to a Star Tracker loss-of-lock.