Ellipsoid altitude.
Heading.
Horizontal confidence.
Horizontal dillution of precision.
Horizontal speed.
Horizontal uncertainty circular.
Horizontal uncertainty ellipse orient azimuth.
Horizontal uncertainty ellipse semi-major.
Horizontal uncertainty ellipse semi-minor.
Horizontal velocity uncertainty.
Latitude.
Leap seconds.
Longitude.
Mean sea level altitude.
Operating mode.
Position dillution of precision.
Timestamp calendar (GPS time).
Timestamp (UTC).
Time uncertainty.
Vertical dillution of precision.
Vertical speed.
Vertical uncertainty.
Vertical velocity uncertainty.
Flags to indicate which position data parameters are valid.