[vsnet-grb 258272] GCN/SWIFT_XRT_POSITION_NACK

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 12 Apr 15 09:02:42 UT
NOTICE_TYPE:     Swift-XRT Nack-Position
TRIGGER_NUM:     637807,   Seg_Num: 0
POINT_RA:        273.350d {+18h 13m 24s} (J2000)
POINT_DEC:       -33.939d {-33d 56' 21"} (J2000)
IMG_START_DATE:  17124 TJD;   102 DOY;   15/04/12
IMG_START_TIME:  32555.87 SOD {09:02:35.87} UT,   1825.3 [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.