[vsnet-grb 462396] GCN/SWIFT_FOM_OBSERVE

Bacodine vxw at capella2.gsfc.nasa.gov
Tue Oct 20 14:48:55 JST 2020


TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 20 Oct 20 05:48:54 UT
NOTICE_TYPE:     Swift-FOM Will_Observe
TRIGGER_NUM:     1000926,   Seg_Num: 0
GRB_RA:          261.246d {+17h 24m 59s} (J2000),
                 261.443d {+17h 25m 46s} (current),
                 260.774d {+17h 23m 06s} (1950)
GRB_DEC:         +31.425d {+31d 25' 30"} (J2000),
                 +31.407d {+31d 24' 27"} (current),
                 +31.468d {+31d 28' 06"} (1950)
GRB_DATE:        19142 TJD;   294 DOY;   20/10/20
GRB_TIME:        20846.16 SOD {05:47:26.16} UT
TRIGGER_INDEX:   20000
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    12.20 [sigma]
FLAGS:           0x3
MERIT:           100.00
SUN_POSTN:       205.34d {+13h 41m 22s}  -10.51d {-10d 30' 40"}
SUN_DIST:         68.10 [deg]   Sun_angle= -3.7 [hr] (East of Sun)
MOON_POSTN:      253.90d {+16h 55m 36s}  -21.93d {-21d 55' 41"}
MOON_DIST:        53.82 [deg]
MOON_ILLUM:      16 [%]
GAL_COORDS:       54.94, 31.16 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      257.09, 54.47 [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 an image trigger.  (The RATE_SIGNIF is undefined.)  
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 = 183.56,19.19 [deg].  



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