[vsnet-grb 95905] GCN/SWIFT_FOM_OBSERVE

Bacodine vxw at capella.gsfc.nasa.gov
Thu Apr 9 12:18:01 JST 2009


TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 09 Apr 09 03:17:47 UT
NOTICE_TYPE:     Swift-FOM Will_Observe
TRIGGER_NUM:     348781,   Seg_Num: 0
GRB_RA:          268.829d {+17h 55m 19s} (J2000),
                 268.928d {+17h 55m 43s} (current),
                 268.293d {+17h 53m 10s} (1950)
GRB_DEC:         +20.664d {+20d 39' 49"} (J2000),
                 +20.663d {+20d 39' 46"} (current),
                 +20.671d {+20d 40' 14"} (1950)
GRB_DATE:        14930 TJD;    99 DOY;   09/04/09
GRB_TIME:        11774.30 SOD {03:16:14.30} UT
TRIGGER_INDEX:   157
RATE_SIGNIF:     23.79 [sigma]
IMAGE_SIGNIF:    6.61 [sigma]
FLAGS:           0x3
MERIT:           100.00
SUN_POSTN:        17.92d {+01h 11m 40s}   +7.60d {+07d 35' 46"}
SUN_DIST:        104.78 [deg]   Sun_angle= 7.3 [hr] (West of Sun)
MOON_POSTN:      190.51d {+12h 42m 03s}   -9.59d {-09d 35' 18"}
MOON_DIST:        82.73 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:       45.99, 21.27 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      268.47, 44.10 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT Figure-of-Merit decision.  
COMMENTS:        This was of sufficient merit to become the new Automated Target;  
COMMENTS:        but if the Current PPT has a greater merit, then we will not request a slew.  
COMMENTS:        FOM will request the s/c to slew.  
COMMENTS:        The S/C has yet to make its decision about safe to slew or not.  
COMMENTS:        This does not match any source in the ground catalog.  
COMMENTS:           
COMMENTS:        The next comments were copied from the BAT_POS Notice:  
COMMENTS:        This is a rate trigger.  
COMMENTS:        A point_source was found.  
COMMENTS:        This does not match any source in the on-board catalog.  
COMMENTS:        This is a GRB.  
COMMENTS:        This trigger occurred during a high background rate interval.  
COMMENTS:        Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection.  
COMMENTS:        This trigger occurred at longitude,latitude = 284.23,-12.41 [deg].  



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