[vsnet-grb 258673] GCN/SWIFT_XRT_POSITION_NACK

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 17 Apr 15 04:55:12 UT
NOTICE_TYPE:     Swift-XRT Nack-Position
TRIGGER_NUM:     638217,   Seg_Num: 0
POINT_RA:        186.574d {+12h 26m 18s} (J2000)
POINT_DEC:       +15.443d {+15d 26' 34"} (J2000)
IMG_START_DATE:  17129 TJD;   107 DOY;   15/04/17
IMG_START_TIME:  17703.43 SOD {04:55:03.43} UT,   132.9 [sec] since BAT Trigger Time
COUNTS:          1    Min_needed= 20
STD_DEV:         0.00   Max_StdDev_for_Good=28.44 [arcsec]
PH2_ITER:        0    Max_iter_allowed= 4
ERROR_CODE:      1
COMMENTS:        SWIFT-XRT Nack Position.  
COMMENTS:        No source found in the image.