[vsnet-grb 149438] GCN/SWIFT_XRT_POSITION_NACK

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 20 May 11 20:42:13 UT
NOTICE_TYPE:     Swift-XRT Nack-Position
TRIGGER_NUM:     453747,   Seg_Num: 0
POINT_RA:        134.322d {+08h 57m 17s} (J2000)
POINT_DEC:       +56.416d {+56d 24' 58"} (J2000)
IMG_START_DATE:  15701 TJD;   140 DOY;   11/05/20
IMG_START_TIME:  73828.34 SOD {20:30:28.34} UT,   100.1 [sec] since BAT Trigger Time
COUNTS:          32    Min_needed= 20
STD_DEV:         30.24   Max_StdDev_for_Good=28.44 [arcsec]
PH2_ITER:        1    Max_iter_allowed= 4
ERROR_CODE:      3
COMMENTS:        SWIFT-XRT Nack Position.  
COMMENTS:        Standard deviation too large.