[vsnet-grb 473445] GCN/SWIFT_FOM_OBSERVE

Bacodine vxw at capella2.gsfc.nasa.gov
Fri Feb 5 20:12:27 JST 2021


TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 05 Feb 21 11:12:27 UT
NOTICE_TYPE:     Swift-FOM Will_Observe
TRIGGER_NUM:     1030629,   Seg_Num: 0
GRB_RA:          347.257d {+23h 09m 02s} (J2000),
                 347.488d {+23h 09m 57s} (current),
                 346.710d {+23h 06m 50s} (1950)
GRB_DEC:         +56.312d {+56d 18' 45"} (J2000),
                 +56.427d {+56d 25' 37"} (current),
                 +56.041d {+56d 02' 28"} (1950)
GRB_DATE:        19250 TJD;    36 DOY;   21/02/05
GRB_TIME:        40277.61 SOD {11:11:17.61} UT
TRIGGER_INDEX:   456
RATE_SIGNIF:     8.94 [sigma]
IMAGE_SIGNIF:    8.16 [sigma]
FLAGS:           0x3
MERIT:           100.00
SUN_POSTN:       319.33d {+21h 17m 19s}  -15.78d {-15d 46' 34"}
SUN_DIST:         75.96 [deg]   Sun_angle= -1.9 [hr] (East of Sun)
MOON_POSTN:      234.53d {+15h 38m 08s}  -17.50d {-17d 30' 16"}
MOON_DIST:       117.15 [deg]
MOON_ILLUM:      42 [%]
GAL_COORDS:      109.03, -3.77 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       22.01, 54.30 [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 = 84.75,-5.79 [deg].  



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