ARMY TM 9-6675-349-12&P
MARINE CORPS TM 11039A-12&P
3-18. Update Errors.
a.
While updating the system, IPADS tests the difference between the update coordinates (trig list data) and
the actual IPADS position coordinates.
b.
Depending on the difference and whether data will be adjusted, one of the following confirmation messages
will be displayed:
PRESS Y TO USE POSITION
>100 METERS FROM CURRENT; PRESS Y TO UPDATE POSITION
NOTE: 10 MINUTE RE-ALIGNMENT WILL BE INITIATED
HPOS ERR = x.x M; VPOS ERR = x.x M;
PRESS Y TO UPDATE / ADJUST POINTS
HPOS ERR = x.x M; VPOS ERR = x.x M;
ERROR: RAD ERR TOO LARGE TO ADJUST; PRESS Y TO UPDATE ONLY
NOTE: 10 MINUTE RE-ALIGNMENT WILL BE INITIATED
c.
Operator must decide whether the radial error is low enough to adjust data based on the distance traveled
and time since the last update. Operator will check the probable reason and take the appropriate corrective
action(s) for high radial errors, table 3-5. Operator must decide whether to confirm update by pressing Y or
cancel update by pressing F9.
NOTE
Update errors may occur at the initial SCP or at SCPs during the survey mission.
This table is divided into two parts. Part I pertains to rejection at the initial
update SCP. Part II comprises all other update rejections occurring during the
survey mission or when closing the survey mission.
3-52
