Output Variables

XYZ coordinates in the Earth Centered Earth Fixed Frame which is a Cartesian frame centered at the ellipsoid origin

Height of the pole or tripod above the station marker

Angle between true north and the baseline made between FROM and TO stations

Angle between true north and the baseline made between TO and FROM stations

Acceleration components in the vehicle body frame after removal of gravity, Earth rotation and estimated sensor errors

Velocity components in the vehicle body frame

Estimated error of the computed azimuth.

East and North coordinates in the British State Plane projection

Root mean square of C/A code signal

The absolute value calculated by using XOR, ADD, or NMEA methodology on the 8 data bits of each character in the sentence; decimal and hexadecimal formats may be selected (user will be prompted for these options after the profile is created)

Scale factor used by surveyors. It applies the map scale factor combined with the ellipsoidal height correction, which can be used to scale distances on the ellipsoid to the earth’s surface.

Combines east, north and up position standard deviations into one value. Same value is written by Write Coordinates.

Azimuth from base antenna to remote antenna in moving baseline projects.

Meridian convergence for the current location in the current map projection

GPS time corrected for receiver clock bias

Direction of travel indicated by velocity vector.

Date of the epoch or feature

Description of the station or feature from the STA file

Error in the computed baseline length in moving baseline projects.

Double Difference DOP which is approximately equivalent to PDOP²

Separations between the forward and reverse solution in the east, north and height axes

Root mean square of the separations between the forward and reverse solution in the east, north and height axes

Estimated east, north and up position standard deviations in the local level frame

East, North and Up velocity components in the local level frame

Estimated east, north up velocity standard deviations in the local level frame

When a 3-D offset is applied to camera event marks, this field can be used to verify that the proper offset is applied. This offset is oriented to local level that is, true-north.

Estimated ECEF position covariance matrix

XYZ components of the vector between base and remote in the ECEF frame

Estimated ECEF velocity covariance matrix

Estimated ECEF position standard deviations in the XYZ axes

XYZ velocity components in the ECEF frame

Estimated ECEF velocity standard deviations in the XYZ axes

Height above current ellipsoid; based on datum selected during processing

Used to scale distances on the ellipsoid to the earth’s surface.

End time of the static session

Orientation of the error ellipse (theta)

Estimated error along the semi-major axis of the error ellipse (a)

Estimated error along the semi-minor axis of the error ellipse (b)

Indicates if KAR fixed the ambiguities

User can select what character separates each variable in a record

Indicates if carrier phase ambiguities have been fixed

East and North coordinates in the Gauss Kruger projection

Height of the ellipsoid above or below the geoid

Exact time of measurement in the GPS time frame.

Time of the epoch or feature; time format may be changed to user’s preference

Week number for GPS data starting from January 4, 1980; Depending in the format, this week number may or may not reset after 1023

Negative yaw (see IMU angle definition).

Vertical height difference between stations

Estimated error along the vertical axis (dh)

Horizontal distance on the ellipsoid between stations (geodesic)

Estimated position standard deviation in the east and north axes of a local level frame

East and North coordinates in the Irish State Plane projection

Root mean square of L1 Doppler signal; useful for INS integration

L1, or Iono-free root mean square

East and North coordinates in the Lambert Conformal projection

North/South geographic coordinate

Estimated local level position covariance matrix; needs extended output in GrafNav

Estimated local level velocity covariance matrix; needs extended output in GrafNav

Local level left hand side frame where the x axis is pointing east, the y axis is pointing north and the z axis is pointing up; the frame is centered at the master station

XYZ axes of a coordinate frame defined by two or more points (see local plane options)

GPS time and date with time-zone offset applied

East/West geographic coordinate

Map projection scale computed for a location

Name of Master GPB file

Number of BeiDou satellites

Number of baselines used in the combined solution.

Number of Galileo satellites

Number of GLONASS satellites

Number of GPS satellites

Number of QZSS satellites

Total number of GPS and GLONASS satellites

Height above the geoid (mean sea level height)

Position dilution of precision, horizontal position dilution of precision and vertical DOP. May be slightly different than values from other sources due to the differential computation

IMU pitch angle (see IMU angle definition)

Name of current project

Quality factor; 1 (best) to 6 (worst)

Azimuth between current and previous feature or epoch.

Relative height difference between current and previous epochs or features

Uncorrected horizontal distance on the ellipsoid between the current and previous epochs. Multiply by Combined Scale Factor to bring to mapping plane and surface

Free-air distance between neighboring epochs or features. Distance between current and previous.

Remarks of the station or feature from the STA file

Name of Remote GPB file

IMU roll angle (see IMU angle definition)

The difference between the combined solutions in terms of Roll, Pitch and Heading.

Estimated attitude accuracy.

Horizontal distance ratio between the globe and the map distance for the current point in the current map projection.

Allows user to enter a north and east value for a user defined grid. Grids can be modified and added using the Grid Manager (see Tools Menu).

Allows the user to number epochs in the data with a user defined start and end sequence number, as well as, an incremental value.

Free air distance between stations

Type of solution used. In GrafNav, possible solution types include SF-Carrier, DF-Carrier, IonoFree, RelIono, CaOnly, SingPoint. In GrafNet, FixedSoln, FloatSoln.

Trace of the covariance matrix expressed as a standard deviation; no distance dependent errors included.

Start time of the static session.

East and North coordinates in the US State Plane projection.

Indicates if an epoch is static or kinematic.

Name describing the station, feature or camera mark.

Horizontal distance between the two stations on the surface (corrected geodesic).

Angle of the sun above the horizon.

Time length of the static session.

East and North coordinates in the Transverse Mercator projection.

Spatial distance between two points.

The shortest path between two points on the surface of a sphere (for example, Great circle).

Allows for scaling, rotating and translating of a selectable grid.

Local Level to user frame rotation about X-axis.

Estimated standard deviation of Local Level to user frame rotation about X-axis.

Local Level to user frame rotation about Y-axis.

Estimated standard deviation of Local Level to user frame rotation about Y-axis.

Local Level to user frame rotation about Z-axis.

Estimated standard deviation of Local Level to user frame rotation about Z-axis.

String of text defined by user.

Same as UTC Time, but a correction for the receiver clock bias is applied. This is the most precise time. Only applicable for epochs.

Date in UTC time.

Time which is available in various format. This is the epochs or feature time offset from GPS seconds by the GPS-UTC time offset. This time is uncorrected for the receiver clock bias.

East and North coordinates in the Universal Transverse Mercator projection.

Ellipsoidal height corrected by the map scale factor.

Orthometric height corrected by the map scale factor. Used in photogrammetry applications to create an elevation that is more compatible with measured ground coordinates.

This is the apparent output in acceleration when there is no input acceleration present. It is computed by the GNSS/INS Kalman filter and the effects may be sinusoidal or random.