[vsnet-grb 474943] GCN/SWIFT_FOM_OBSERVE

Bacodine vxw at capella2.gsfc.nasa.gov
Thu Feb 18 08:26:20 JST 2021


TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 17 Feb 21 23:26:19 UT
NOTICE_TYPE:     Swift-FOM Will_Observe
TRIGGER_NUM:     1033264,   Seg_Num: 0
GRB_RA:           97.610d {+06h 30m 26s} (J2000),
                  98.180d {+06h 32m 43s} (current),
                  96.260d {+06h 25m 02s} (1950)
GRB_DEC:         +68.715d {+68d 42' 53"} (J2000),
                 +68.699d {+68d 41' 55"} (current),
                 +68.748d {+68d 44' 54"} (1950)
GRB_DATE:        19262 TJD;    48 DOY;   21/02/17
GRB_TIME:        84342.30 SOD {23:25:42.30} UT
TRIGGER_INDEX:   150
RATE_SIGNIF:     30.16 [sigma]
IMAGE_SIGNIF:    13.81 [sigma]
FLAGS:           0x3
MERIT:           100.00
SUN_POSTN:       331.64d {+22h 06m 33s}  -11.64d {-11d 38' 09"}
SUN_DIST:        113.56 [deg]   Sun_angle= -8.4 [hr] (East of Sun)
MOON_POSTN:       38.59d {+02h 34m 22s}  +11.97d {+11d 58' 02"}
MOON_DIST:        68.09 [deg]
MOON_ILLUM:      33 [%]
GAL_COORDS:      146.11, 23.29 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       93.92, 45.38 [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 = 50.77,20.58 [deg].  



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