[vsnet-grb 473659] GCN/SWIFT_FOM_OBSERVE

Bacodine vxw at capella2.gsfc.nasa.gov
Mon Feb 8 06:52:33 JST 2021


TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 07 Feb 21 21:52:33 UT
NOTICE_TYPE:     Swift-FOM Will_Observe
TRIGGER_NUM:     1031297,   Seg_Num: 0
GRB_RA:          270.582d {+18h 02m 20s} (J2000),
                 270.693d {+18h 02m 46s} (current),
                 270.321d {+18h 01m 17s} (1950)
GRB_DEC:         +53.694d {+53d 41' 39"} (J2000),
                 +53.695d {+53d 41' 43"} (current),
                 +53.692d {+53d 41' 31"} (1950)
GRB_DATE:        19252 TJD;    38 DOY;   21/02/07
GRB_TIME:        78728.15 SOD {21:52:08.15} UT
TRIGGER_INDEX:   124
RATE_SIGNIF:     17.74 [sigma]
IMAGE_SIGNIF:    9.59 [sigma]
FLAGS:           0x3
MERIT:           100.00
SUN_POSTN:       321.77d {+21h 27m 05s}  -15.02d {-15d 00' 55"}
SUN_DIST:         81.35 [deg]   Sun_angle= 3.4 [hr] (West of Sun)
MOON_POSTN:      270.65d {+18h 02m 37s}  -24.62d {-24d 36' 53"}
MOON_DIST:        78.31 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:       81.69, 28.65 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      271.55, 77.13 [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 = 221.37,10.01 [deg].  



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