NorthStar MX500 Operator's & Installation Manual page 276

Operator's Manual
WORLD GEODETIC SYSTEM (WGS)
X-TRACK ERROR (XTE)
1PPS
262
Worldwide datums (WGS 72 and WGS 84) used for satellite naviga-
tion systems. The main difference between WGS 72 and WGS 84 is
a small eastward shift. The resulting difference in position will
normally be 0.01 minute of longitude, which will not be noticeable
on charts of scale 1:50 000 or smaller. You may thus use the WGS 84
Plus Offset datum with charts marked with a WGS 72 offset. All
charts will eventually be converted to WGS 84 datum.
See CROSS TRACK ERROR.
One Pulse Per Second – A timing signal generally provided by
GNSS receivers.
Glossary
Version 3.0