[vsnet-grb 405037] GCN/SWIFT_FOM_OBSERVE

Bacodine vxw at capella2.gsfc.nasa.gov
Sat Apr 27 13:34:59 JST 2019


TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 27 Apr 19 04:34:42 UT
NOTICE_TYPE:     Swift-FOM Will_Observe
TRIGGER_NUM:     900730,   Seg_Num: 0
GRB_RA:          280.213d {+18h 40m 51s} (J2000),
                 280.370d {+18h 41m 29s} (current),
                 279.805d {+18h 39m 13s} (1950)
GRB_DEC:         +40.322d {+40d 19' 20"} (J2000),
                 +40.342d {+40d 20' 29"} (current),
                 +40.274d {+40d 16' 26"} (1950)
GRB_DATE:        18600 TJD;   117 DOY;   19/04/27
GRB_TIME:        16454.95 SOD {04:34:14.95} UT
TRIGGER_INDEX:   10318
RATE_SIGNIF:     54.54 [sigma]
IMAGE_SIGNIF:    11.10 [sigma]
FLAGS:           0x3
MERIT:           100.00
SUN_POSTN:        34.32d {+02h 17m 16s}  +13.73d {+13d 44' 02"}
SUN_DIST:         98.44 [deg]   Sun_angle= 7.6 [hr] (West of Sun)
MOON_POSTN:      312.34d {+20h 49m 22s}  -19.44d {-19d 26' 30"}
MOON_DIST:        66.78 [deg]
MOON_ILLUM:      48 [%]
GAL_COORDS:       69.25, 19.05 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      287.41, 63.15 [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 = 88.92,-16.71 [deg].  



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