[vsnet-grb 170413] GCN/SWIFT_XRT_POSITION_NACK

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 12 Mar 12 16:08:18 UT
NOTICE_TYPE:     Swift-XRT Nack-Position
TRIGGER_NUM:     517566,   Seg_Num: 0
POINT_RA:        251.766d {+16h 47m 04s} (J2000)
POINT_DEC:       +23.864d {+23d 51' 51"} (J2000)
IMG_START_DATE:  15998 TJD;    72 DOY;   12/03/12
IMG_START_TIME:  58090.74 SOD {16:08:10.74} UT,   3599.9 [sec] since BAT Trigger Time
COUNTS:          6    Min_needed= 20
STD_DEV:         0.00   Max_StdDev_for_Good=28.44 [arcsec]
PH2_ITER:        1    Max_iter_allowed= 4
ERROR_CODE:      1
COMMENTS:        SWIFT-XRT Nack Position.  
COMMENTS:        No source found in the image.