[vsnet-grb 493018] GCN/SWIFT_FOM_OBSERVE

Bacodine vxw at capella2.gsfc.nasa.gov
Sun Jul 25 05:23:16 JST 2021


TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 24 Jul 21 20:23:15 UT
NOTICE_TYPE:     Swift-FOM Will_Observe
TRIGGER_NUM:     1061482,   Seg_Num: 0
GRB_RA:          227.407d {+15h 09m 38s} (J2000),
                 227.693d {+15h 10m 46s} (current),
                 226.745d {+15h 06m 59s} (1950)
GRB_DEC:          -6.274d {-06d 16' 27"} (J2000),
                  -6.356d {-06d 21' 19"} (current),
                  -6.085d {-06d 05' 05"} (1950)
GRB_DATE:        19419 TJD;   205 DOY;   21/07/24
GRB_TIME:        72849.24 SOD {20:14:09.24} UT
TRIGGER_INDEX:   292
RATE_SIGNIF:     9.00 [sigma]
IMAGE_SIGNIF:    7.21 [sigma]
FLAGS:           0x3
MERIT:           100.00
SUN_POSTN:       124.41d {+08h 17m 39s}  +19.68d {+19d 40' 40"}
SUN_DIST:        104.61 [deg]   Sun_angle= -6.9 [hr] (East of Sun)
MOON_POSTN:      315.77d {+21h 03m 04s}  -21.56d {-21d 33' 27"}
MOON_DIST:        85.89 [deg]
MOON_ILLUM:      99 [%]
GAL_COORDS:      353.08, 42.75 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      226.74, 11.00 [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 = 11.40,4.11 [deg].  



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