[vsnet-grb 349916] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 16 Dec 17 03:22:18 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     797441,   Seg_Num: 0
GRB_RA:          211.9924d {+14h 07m 58.17s} (J2000),
                 212.2871d {+14h 09m 08.89s} (current),
                 211.1758d {+14h 04m 42.20s} (1950)
GRB_DEC:         -50.4851d {-50d 29' 06.3"} (J2000),
                 -50.5697d {-50d 34' 11.0"} (current),
                 -50.2479d {-50d 14' 52.5"} (1950)
GRB_ERROR:       2.1 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  18103 TJD;   350 DOY;   17/12/16
IMG_START_TIME:  11354.00 SOD {03:09:14.00} UT,   134.5 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       263.85d {+17h 35m 24s}  -23.32d {-23d 18' 57"}
SUN_DIST:         48.06 [deg]   Sun_angle= 3.4 [hr] (West of Sun)
MOON_POSTN:      239.98d {+15h 59m 55s}  -15.55d {-15d 33' 02"}
MOON_DIST:        41.51 [deg]
MOON_ILLUM:      4 [%]
GAL_COORDS:      315.18, 10.56 [deg] galactic lon,lat of the burst
ECL_COORDS:      228.79,-35.01 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        This is an Update Notice -- the RA,Dec values herein supersede the previous XRT_POS Notice.  
COMMENTS:        TAM values, flux and significance fields are not valid.  
COMMENTS:        This position was automatically generated on the ground using  
COMMENTS:        Photon Counting data telemetered via TDRSS (SPER data).  
COMMENTS:        See http://www.swift.ac.uk/sper/docs.php for details.  
COMMENTS:        This position was enhanced using UVOT field astrometry.  
COMMENTS:        The probability that this is a serendipitous source in the  
COMMENTS:        SPER window is 0.58% < P(seren) < 1.1%.