[vsnet-grb 473975] GCN/SWIFT_FOM_OBSERVE

Bacodine vxw at capella2.gsfc.nasa.gov
Wed Feb 10 06:40:57 JST 2021


TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 09 Feb 21 21:40:56 UT
NOTICE_TYPE:     Swift-FOM Will_Observe
TRIGGER_NUM:     1031636,   Seg_Num: 0
GRB_RA:          328.096d {+21h 52m 23s} (J2000),
                 328.308d {+21h 53m 14s} (current),
                 327.596d {+21h 50m 23s} (1950)
GRB_DEC:         +43.559d {+43d 33' 31"} (J2000),
                 +43.659d {+43d 39' 31"} (current),
                 +43.323d {+43d 19' 23"} (1950)
GRB_DATE:        19254 TJD;    40 DOY;   21/02/09
GRB_TIME:        77984.52 SOD {21:39:44.52} UT
TRIGGER_INDEX:   478
RATE_SIGNIF:     10.81 [sigma]
IMAGE_SIGNIF:    10.25 [sigma]
FLAGS:           0x3
MERIT:           100.00
SUN_POSTN:       323.75d {+21h 35m 00s}  -14.38d {-14d 22' 36"}
SUN_DIST:         58.19 [deg]   Sun_angle= -0.3 [hr] (East of Sun)
MOON_POSTN:      300.76d {+20h 03m 02s}  -23.84d {-23d 50' 34"}
MOON_DIST:        72.08 [deg]
MOON_ILLUM:      4 [%]
GAL_COORDS:       91.89, -8.26 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      352.84, 51.68 [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 = 223.94,4.66 [deg].  



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