[vsnet-grb 459871] GCN/SWIFT_FOM_OBSERVE

Bacodine vxw at capella2.gsfc.nasa.gov
Sat Sep 26 06:51:20 JST 2020


TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 25 Sep 20 21:51:09 UT
NOTICE_TYPE:     Swift-FOM Will_Observe
TRIGGER_NUM:     997453,   Seg_Num: 0
GRB_RA:          246.851d {+16h 27m 24s} (J2000),
                 246.602d {+16h 26m 24s} (current),
                 247.466d {+16h 29m 52s} (1950)
GRB_DEC:         +78.394d {+78d 23' 39"} (J2000),
                 +78.348d {+78d 20' 55"} (current),
                 +78.502d {+78d 30' 08"} (1950)
GRB_DATE:        19117 TJD;   269 DOY;   20/09/25
GRB_TIME:        78637.02 SOD {21:50:37.02} UT
TRIGGER_INDEX:   147
RATE_SIGNIF:     11.87 [sigma]
IMAGE_SIGNIF:    7.68 [sigma]
FLAGS:           0x3
MERIT:           100.00
SUN_POSTN:       183.01d {+12h 12m 03s}   -1.30d {-01d 18' 16"}
SUN_DIST:         86.13 [deg]   Sun_angle= -4.2 [hr] (East of Sun)
MOON_POSTN:      298.21d {+19h 52m 52s}  -23.59d {-23d 35' 26"}
MOON_DIST:       106.08 [deg]
MOON_ILLUM:      69 [%]
GAL_COORDS:      111.68, 33.50 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      109.78, 76.48 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT Figure-of-Merit decision.  
COMMENTS:           
COMMENTS:        WARNING: No BAT_Position TDRSS message was received for this trigger_number!  
COMMENTS:           
COMMENTS:        Because no BAT_Position Notice was received, this FOM Notice was forced out after watchdog expiration.  
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 = 147.39,20.24 [deg].  



More information about the vsnet-grb mailing list