[vsnet-grb 281625] GCN/SWIFT_XRT_POSITION_NACK

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 21 Jan 16 13:52:24 UT
NOTICE_TYPE:     Swift-XRT Nack-Position
TRIGGER_NUM:     671231,   Seg_Num: 0
POINT_RA:        109.088d {+07h 16m 21s} (J2000)
POINT_DEC:       -23.565d {-23d 33' 52"} (J2000)
IMG_START_DATE:  17408 TJD;    21 DOY;   16/01/21
IMG_START_TIME:  49928.75 SOD {13:52:08.75} UT,   91.0 [sec] since BAT Trigger Time
COUNTS:          20    Min_needed= 20
STD_DEV:         35.64   Max_StdDev_for_Good=28.44 [arcsec]
PH2_ITER:        3    Max_iter_allowed= 4
ERROR_CODE:      3
COMMENTS:        SWIFT-XRT Nack Position.  
COMMENTS:        Standard deviation too large.