[vsnet-grb 20327] GCN/SWIFT_BAT_POSITION_RETRACTION

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 27 Mar 06 01:14:48 UT
NOTICE_TYPE:     Swift-BAT GRB Position RETRACTION
TRIGGER_NUM:     202892,   Seg_Num: 0
GRB_RA:          280.221d {+18h 40m 53s} (J2000),
                 280.304d {+18h 41m 13s} (current),
                 279.554d {+18h 38m 13s} (1950)
GRB_DEC:          -5.570d {-05d 34' 11"} (J2000),
                  -5.564d {-05d 33' 49"} (current),
                  -5.618d {-05d 37' 03"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=1153 [image_cnts]
TRIGGER_DUR:     64.000 [sec] 
TRIGGER_INDEX:   20000     E_range: 15-50 keV
BKG_INTEN:       0 [cnts]
BKG_TIME:        -1.09 SOD {00:00:-1.-8} UT
BKG_DUR:         0 [sec]
GRB_DATE:        13821 TJD;    86 DOY;   06/03/27
GRB_TIME:        3150.90 SOD {00:52:30.90} UT
GRB_PHI:          33.81 [deg]
GRB_THETA:        16.21 [deg]
SOLN_STATUS:     0x1BD
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    5.45 [sigma]
MERIT_PARAMS:     +0  +0 +100  +6  +1  -6  +0  +1  -7  +1 
SUN_POSTN:         5.73d {+00h 22m 54s}   +2.48d {+02d 28' 35"}
SUN_DIST:         85.69 [deg]   Sun_angle= 5.7 [hr] (West of Sun)
MOON_POSTN:      336.03d {+22h 24m 07s}  -12.80d {-12d 47' 56"}
MOON_DIST:        55.39 [deg]
MOON_ILLUM:      8 [%]
GAL_COORDS:       26.77, -0.20 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      280.67, 17.49 [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 matches a source in the on-board catalog.  
COMMENTS:        This matches a source in the ground catalog: IGR18406-0539,   delta=0.107 [deg].  
COMMENTS:        This is not a GRB.  
COMMENTS:        This is an interesting source.  
COMMENTS:        Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection.  
COMMENTS:        This is a RETRACTION of a previous notice that identified this as a GRB -- it is NOT a GRB.  
COMMENTS:        This Notice was ground-reprocessed from flight-data.  
COMMENTS:          
COMMENTS:        This is most likely a chance coincidence of a noise fluctuation in the image-domain    
COMMENTS:        and the location of a known source.  We note the very low image significance, and  
COMMENTS:        the large distance to the catalog source.  
COMMENTS:        This not a Transient nor is it a GRB.