[vsnet-grb 490516] GCN/SWIFT_FOM_OBSERVE

Bacodine vxw at capella2.gsfc.nasa.gov
Sat Jul 3 04:20:51 JST 2021


TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 02 Jul 21 19:20:50 UT
NOTICE_TYPE:     Swift-FOM Will_Observe
TRIGGER_NUM:     1058804,   Seg_Num: 0
GRB_RA:          168.570d {+11h 14m 17s} (J2000),
                 168.828d {+11h 15m 19s} (current),
                 167.971d {+11h 11m 53s} (1950)
GRB_DEC:         -36.741d {-36d 44' 28"} (J2000),
                 -36.859d {-36d 51' 31"} (current),
                 -36.469d {-36d 28' 07"} (1950)
GRB_DATE:        19397 TJD;   183 DOY;   21/07/02
GRB_TIME:        68833.69 SOD {19:07:13.69} UT
TRIGGER_INDEX:   155
RATE_SIGNIF:     95.06 [sigma]
IMAGE_SIGNIF:    6.99 [sigma]
FLAGS:           0x3
MERIT:           100.00
SUN_POSTN:       102.09d {+06h 48m 23s}  +22.97d {+22d 58' 12"}
SUN_DIST:         86.74 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:       21.42d {+01h 25m 41s}   +4.69d {+04d 41' 33"}
MOON_DIST:       136.13 [deg]
MOON_ILLUM:      41 [%]
GAL_COORDS:      282.08, 22.17 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      186.70,-37.74 [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:        Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection.  
COMMENTS:        This trigger occurred at longitude,latitude = 10.86,-8.32 [deg].  



More information about the vsnet-grb mailing list