[vsnet-grb 474139] GCN/SWIFT_FOM_OBSERVE

Bacodine vxw at capella2.gsfc.nasa.gov
Thu Feb 11 17:43:53 JST 2021


TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 11 Feb 21 08:43:53 UT
NOTICE_TYPE:     Swift-FOM Will_Observe
TRIGGER_NUM:     1032024,   Seg_Num: 0
GRB_RA:          269.433d {+17h 57m 44s} (J2000),
                 269.826d {+17h 59m 18s} (current),
                 268.501d {+17h 54m 00s} (1950)
GRB_DEC:         -46.299d {-46d 17' 57"} (J2000),
                 -46.300d {-46d 18' 00"} (current),
                 -46.294d {-46d 17' 39"} (1950)
GRB_DATE:        19256 TJD;    42 DOY;   21/02/11
GRB_TIME:        31398.34 SOD {08:43:18.34} UT
TRIGGER_INDEX:   124
RATE_SIGNIF:     13.74 [sigma]
IMAGE_SIGNIF:    7.09 [sigma]
FLAGS:           0x3
MERIT:           100.00
SUN_POSTN:       325.19d {+21h 40m 46s}  -13.90d {-13d 53' 55"}
SUN_DIST:         56.30 [deg]   Sun_angle= 3.7 [hr] (West of Sun)
MOON_POSTN:      321.43d {+21h 25m 43s}  -19.77d {-19d 46' 18"}
MOON_DIST:        49.58 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      346.09,-10.77 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      269.57,-22.86 [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 = 55.66,1.29 [deg].  



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