Gpgst
This is a ROS message definition.
Source
# Message from GPGST NMEA String
std_msgs/Header header
string message_id
# UTC seconds from midnight
float64 utc_seconds
# Root-Mean-Squared value of standard deviation of range inputs
float32 rms
# Standard Deviations of semi-major and minor axes of error ellipse
float32 semi_major_dev
float32 semi_minor_dev
# Orientation of the semi-major axis of error ellipse with respect to true north
float32 orientation
# Standard Deviations of latitude, longitude, and altitude measurements
float32 lat_dev
float32 lon_dev
float32 alt_dev