[vsnet-grb 259503] GCN/SWIFT_XRT_POSITION_NACK

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 27 Apr 15 14:25:43 UT
NOTICE_TYPE:     Swift-XRT Nack-Position
TRIGGER_NUM:     639199,   Seg_Num: 0
POINT_RA:        250.463d {+16h 41m 51s} (J2000)
POINT_DEC:       -45.535d {-45d 32' 04"} (J2000)
IMG_START_DATE:  17139 TJD;   117 DOY;   15/04/27
IMG_START_TIME:  51934.60 SOD {14:25:34.60} UT,   452.1 [sec] since BAT Trigger Time
COUNTS:          40    Min_needed= 20
STD_DEV:         0.00   Max_StdDev_for_Good=28.44 [arcsec]
PH2_ITER:        4    Max_iter_allowed= 4
ERROR_CODE:      2
COMMENTS:        SWIFT-XRT Nack Position.  
COMMENTS:        Algorithm did not converge; too many iterations.