[vsnet-grb 474009] GCN/SWIFT_FOM_OBSERVE

Bacodine vxw at capella2.gsfc.nasa.gov
Wed Feb 10 11:00:52 JST 2021


TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 10 Feb 21 02:00:52 UT
NOTICE_TYPE:     Swift-FOM Will_Observe
TRIGGER_NUM:     1031728,   Seg_Num: 0
GRB_RA:          262.811d {+17h 31m 15s} (J2000),
                 263.051d {+17h 32m 12s} (current),
                 262.243d {+17h 28m 58s} (1950)
GRB_DEC:         +14.648d {+14d 38' 53"} (J2000),
                 +14.634d {+14d 38' 01"} (current),
                 +14.684d {+14d 41' 04"} (1950)
GRB_DATE:        19255 TJD;    41 DOY;   21/02/10
GRB_TIME:        7227.91 SOD {02:00:27.91} UT
TRIGGER_INDEX:   122
RATE_SIGNIF:     16.24 [sigma]
IMAGE_SIGNIF:    7.51 [sigma]
FLAGS:           0x3
MERIT:           100.00
SUN_POSTN:       323.93d {+21h 35m 43s}  -14.32d {-14d 19' 05"}
SUN_DIST:         66.81 [deg]   Sun_angle= 4.1 [hr] (West of Sun)
MOON_POSTN:      303.40d {+20h 13m 36s}  -23.48d {-23d 28' 56"}
MOON_DIST:        54.86 [deg]
MOON_ILLUM:      3 [%]
GAL_COORDS:       37.58, 24.24 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      261.18, 37.87 [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 at longitude,latitude = 54.99,18.77 [deg].  



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