[vsnet-grb 447262] GCN/SWIFT_FOM_OBSERVE

Bacodine vxw at capella2.gsfc.nasa.gov
Thu May 28 19:28:06 JST 2020


TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 28 May 20 10:27:52 UT
NOTICE_TYPE:     Swift-FOM Will_Observe
TRIGGER_NUM:     974827,   Seg_Num: 0
GRB_RA:          176.637d {+11h 46m 33s} (J2000),
                 176.908d {+11h 47m 38s} (current),
                 175.967d {+11h 43m 52s} (1950)
GRB_DEC:         +58.147d {+58d 08' 50"} (J2000),
                 +58.034d {+58d 02' 01"} (current),
                 +58.425d {+58d 25' 30"} (1950)
GRB_DATE:        18997 TJD;   149 DOY;   20/05/28
GRB_TIME:        37643.84 SOD {10:27:23.84} UT
TRIGGER_INDEX:   41
RATE_SIGNIF:     15.39 [sigma]
IMAGE_SIGNIF:    9.17 [sigma]
FLAGS:           0x3
MERIT:           100.00
SUN_POSTN:        65.76d {+04h 23m 03s}  +21.57d {+21d 34' 03"}
SUN_DIST:         82.28 [deg]   Sun_angle= -7.4 [hr] (East of Sun)
MOON_POSTN:      139.28d {+09h 17m 07s}  +19.85d {+19d 50' 45"}
MOON_DIST:        46.97 [deg]
MOON_ILLUM:      31 [%]
GAL_COORDS:      138.62, 56.96 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      145.19, 50.09 [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 = 222.06,20.22 [deg].  



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