[vsnet-grb 407110] GCN/SWIFT_FOM_OBSERVE

Bacodine vxw at capella2.gsfc.nasa.gov
Sun May 19 16:26:27 JST 2019


TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 19 May 19 07:26:11 UT
NOTICE_TYPE:     Swift-FOM Will_Observe
TRIGGER_NUM:     904394,   Seg_Num: 0
GRB_RA:          114.764d {+07h 39m 03s} (J2000),
                 114.934d {+07h 39m 44s} (current),
                 114.327d {+07h 37m 19s} (1950)
GRB_DEC:         -38.824d {-38d 49' 26"} (J2000),
                 -38.869d {-38d 52' 09"} (current),
                 -38.708d {-38d 42' 29"} (1950)
GRB_DATE:        18622 TJD;   139 DOY;   19/05/19
GRB_TIME:        26739.43 SOD {07:25:39.43} UT
TRIGGER_INDEX:   483
RATE_SIGNIF:     45.02 [sigma]
IMAGE_SIGNIF:    6.76 [sigma]
FLAGS:           0x3
MERIT:           100.00
SUN_POSTN:        55.80d {+03h 43m 12s}  +19.72d {+19d 43' 28"}
SUN_DIST:         80.55 [deg]   Sun_angle= -3.9 [hr] (East of Sun)
MOON_POSTN:      242.08d {+16h 08m 20s}  -17.35d {-17d 20' 52"}
MOON_DIST:       105.17 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      252.56, -8.21 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      129.23,-58.94 [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:        There is a bright star (mag=6.19) 6.54 arcmin from this position.  
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 = 60.44,13.94 [deg].  



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