[vsnet-grb 323286] GCN/SWIFT_FOM_OBSERVE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 28 Apr 17 14:52:27 UT
NOTICE_TYPE:     Swift-FOM Will_Observe
TRIGGER_NUM:     750337,   Seg_Num: 0
GRB_RA:          187.781d {+12h 31m 08s} (J2000),
                 188.005d {+12h 32m 01s} (current),
                 187.136d {+12h 28m 33s} (1950)
GRB_DEC:          -7.972d {-07d 58' 19"} (J2000),
                  -8.068d {-08d 04' 02"} (current),
                  -7.696d {-07d 41' 45"} (1950)
GRB_DATE:        17871 TJD;   118 DOY;   17/04/28
GRB_TIME:        53453.02 SOD {14:50:53.02} UT
TRIGGER_INDEX:   20000
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    5.80 [sigma]
FLAGS:           0x3
MERIT:           100.00
SUN_POSTN:        36.13d {+02h 24m 31s}  +14.34d {+14d 20' 18"}
SUN_DIST:        151.73 [deg]   Sun_angle= -10.1 [hr] (East of Sun)
MOON_POSTN:       67.43d {+04h 29m 42s}  +16.77d {+16d 46' 03"}
MOON_DIST:       121.52 [deg]
MOON_ILLUM:      7 [%]
GAL_COORDS:      294.24, 54.56 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      190.29, -4.24 [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 matches a source in the ground catalog: NGC4487,   delta=0.083 [deg].  
COMMENTS:        Galaxy NGC4487 (of total mag=11.00 and dia=4.10 arcmin) is inside the position error circle.  
COMMENTS:        There is a 0.09% probability that an NGC galaxy would happen by chance coincidence.  
COMMENTS:           
COMMENTS:        The next comments were copied from the BAT_POS Notice:  
COMMENTS:        This is an image trigger.  (The RATE_SIGNIF is undefined.)  
COMMENTS:        A point_source was found.  
COMMENTS:        This matches a source in the on-board catalog.  
COMMENTS:        This is not a GRB.  
COMMENTS:        This is an interesting source.  
COMMENTS:           
COMMENTS:        The IMAGE_SIGNIF is VERY LOW, this is very likely not real.  
COMMENTS:        This trigger occurred at longitude,latitude = 93.01,16.48 [deg].