[vsnet-grb 493940] GCN/SWIFT_FOM_OBSERVE
Bacodine
vxw at capella2.gsfc.nasa.gov
Sat Jul 31 23:47:06 JST 2021
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 31 Jul 21 14:47:06 UT
NOTICE_TYPE: Swift-FOM Will_Observe
TRIGGER_NUM: 1062273, Seg_Num: 0
GRB_RA: 255.992d {+17h 03m 58s} (J2000),
256.360d {+17h 05m 26s} (current),
255.143d {+17h 00m 34s} (1950)
GRB_DEC: -37.851d {-37d 51' 02"} (J2000),
-37.879d {-37d 52' 45"} (current),
-37.781d {-37d 46' 52"} (1950)
GRB_DATE: 19426 TJD; 212 DOY; 21/07/31
GRB_TIME: 52388.53 SOD {14:33:08.53} UT
TRIGGER_INDEX: 20000
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 17.05 [sigma]
FLAGS: 0x3
MERIT: 98.39
SUN_POSTN: 131.05d {+08h 44m 11s} +18.10d {+18d 06' 15"}
SUN_DIST: 128.64 [deg] Sun_angle= -8.4 [hr] (East of Sun)
MOON_POSTN: 37.83d {+02h 31m 19s} +12.21d {+12d 12' 47"}
MOON_DIST: 137.17 [deg]
MOON_ILLUM: 50 [%]
GAL_COORDS: 347.75, 2.17 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 258.59,-14.96 [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: 4U_1700-377, delta=0.012 [deg].
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: This trigger occurred at longitude,latitude = 123.91,-20.01 [deg].
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