[vsnet-grb 486292] GCN/SWIFT_XRT_POSITION_NACK

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 27 May 21 08:00:42 UT
NOTICE_TYPE:     Swift-XRT Nack-Position
TRIGGER_NUM:     1051453,   Seg_Num: 0
POINT_RA:        172.326d {+11h 29m 18s} (J2000)
POINT_DEC:       +31.618d {+31d 37' 06"} (J2000)
IMG_START_DATE:  19361 TJD;   147 DOY;   21/05/27
IMG_START_TIME:  28828.44 SOD {08:00:28.44} UT,   3159.5 [sec] since BAT Trigger Time
COUNTS:          2    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.