[vsnet-grb 443670] GCN/SWIFT_FOM_OBSERVE

Bacodine vxw at capella2.gsfc.nasa.gov
Sat Apr 25 09:18:19 JST 2020


TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 25 Apr 20 00:17:21 UT
NOTICE_TYPE:     Swift-FOM Will_Observe
TRIGGER_NUM:     967774,   Seg_Num: 0
GRB_RA:           85.241d {+05h 40m 58s} (J2000),
                  85.474d {+05h 41m 54s} (current),
                  84.667d {+05h 38m 40s} (1950)
GRB_DEC:         -13.459d {-13d 27' 31"} (J2000),
                 -13.450d {-13d 26' 58"} (current),
                 -13.483d {-13d 28' 59"} (1950)
GRB_DATE:        18964 TJD;   116 DOY;   20/04/25
GRB_TIME:        981.76 SOD {00:16:21.76} UT
TRIGGER_INDEX:   298
RATE_SIGNIF:     13.49 [sigma]
IMAGE_SIGNIF:    8.62 [sigma]
FLAGS:           0x3
MERIT:           100.00
SUN_POSTN:        32.98d {+02h 11m 54s}  +13.28d {+13d 16' 33"}
SUN_DIST:         58.48 [deg]   Sun_angle= -3.5 [hr] (East of Sun)
MOON_POSTN:       54.85d {+03h 39m 24s}  +16.57d {+16d 34' 12"}
MOON_DIST:        42.62 [deg]
MOON_ILLUM:      3 [%]
GAL_COORDS:      217.43,-21.60 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       84.22,-36.80 [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 = 253.26,19.68 [deg].  



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