Data Provider Groups | Data Provider Elements

Parameter Set: Orbit

The Orbit parameter set defines orbital element sets for a Point from VGT orbiting the specified Central Body in the specified coordinate System.

Element sets include: Cartesian, Classical, Delaunay, Spherical and Equinoctial (Posigrade and Retrograde).

Available for these objects: Access, Aircraft, Antenna, AreaTarget, Facility, GroundVehicle, LaunchVehicle, LineTarget, Missile, Place, Planet, Radar, Receiver, Satellite, SatelliteCollection, Scenario, Sensor, Ship, Target, Transmitter

Type: Time-varying data.

Availability: Reports | Graphs | Dynamic Displays | Strip Charts

Data Provider Groups

Any Orbit Parameter Set component owned by the object is available for use, including user defined ones. Use the Analysis Workbench listing or the Report Manager->Report Content Properties tool to determine the actual set of components that can be used for a specific object.

Data Provider Elements

Name	Dimension	Type	Description
Time	Date	Real Number or Text	Time.
Cartesian.X	Distance	Real Number	X Cartesian component of position.
Cartesian.X Rate	Rate	Real Number	Rate of change of X Cartesian component of position.
Cartesian.Y	Distance	Real Number	Y Cartesian component of position.
Cartesian.Y Rate	Rate	Real Number	Rate of change of Y Cartesian component of position.
Cartesian.Z	Distance	Real Number	Z Cartesian component of position.
Cartesian.Z Rate	Rate	Real Number	Rate of change of Z Cartesian component of position.
Cartesian.Vx	Rate	Real Number	X Cartesian component of velocity.
Cartesian.Vx Rate	Acceleration	Real Number	Rate of change of Cartesian component of velocity.
Cartesian.Vy	Rate	Real Number	Y Cartesian component of velocity.
Cartesian.Vy Rate	Acceleration	Real Number	Rate of change of Y Cartesian component of velocity.
Cartesian.Vz	Rate	Real Number	Z Cartesian component of velocity.
Cartesian.Vz Rate	Acceleration	Real Number	Rate of change of Z Cartesian component of velocity.
Classical.GM	Grav Parameter	Real Number	Gravitational parameter of central body.
Classical.GM Rate	Unitless	Real Number	Rate of change of gravitational parameter of central body.
Classical.RadiusOfPeriapsis	Distance	Real Number	Radius of periapsis.
Classical.RadiusOfPeriapsis Rate	Rate	Real Number	Rate of change of radius of periapsis.
Classical.Eccentricity	Unitless	Real Number	A measure of the shape of the orbit. Values less than 1 indicate an ellipse (where zero is a circular orbit) and values greater than 1 indicate a hyperbola.
Classical.Eccentricity Rate	Unitless Per Time	Real Number	Rate of change of eccentricity.
Classical.Inclination	Angle	Real Number or Text	The angle between the orbit plane and the XY plane of the coordinate system.
Classical.Inclination Rate	AngleRate	Real Number	Rate of change of the angle between the orbit plane and the XY plane of the coordinate system.
Classical.RAAN	Longitude	Real Number or Text	Right Ascension of Ascending Node.
Classical.RAAN Rate	AngleRate	Real Number	Rate of change of Right Ascension of Ascending Node.
Classical.ArgumentOfPeriapsis	Angle	Real Number or Text	Argument of periapsis.
Classical.ArgumentOfPeriapsis Rate	AngleRate	Real Number	Rate of change of argument of periapsis.
Classical.TrueAnomaly	Angle	Real Number or Text	True anomaly.
Classical.TrueAnomaly Rate	AngleRate	Real Number	Rate of change of true anomaly.
Classical.RadiusOfApoapsis	Distance	Real Number	Radius of apoapsis.
Classical.RadiusOfApoapsis Rate	Rate	Real Number	Rate of change of radius of apoapsis.
Classical.SemimajorAxis	Distance	Real Number	Semimajor axis.
Classical.SemimajorAxis Rate	Rate	Real Number	Rate of change of semimajor axis.
Classical.MeanMotion	AngleRate	Real Number	Mean motion.
Classical.MeanMotion Rate	AngleAccel	Real Number	Rate of change of mean motion.
Classical.EccentricAnomaly	Angle	Real Number or Text	Eccentric anomaly.
Classical.EccentricAnomaly Rate	AngleRate	Real Number	Rate of change of eccentric anomaly.
Classical.MeanAnomaly	Angle	Real Number or Text	Mean anomaly.
Classical.MeanAnomaly Rate	AngleRate	Real Number	Rate of change of mean anomaly.
Classical.ArgumentOfLatitude	Angle	Real Number or Text	Argument of latitude.
Classical.ArgumentOfLatitude Rate	AngleRate	Real Number	Rate of change of argument of latitude.
Classical.LAN	Longitude	Real Number or Text	Longitude of Ascending Node.
Classical.LAN Rate	AngleRate	Real Number	Rate of change of Longitude of Ascending Node.
Classical.LongitudeOfPeriapsis	Longitude	Real Number or Text	Longitude of periapsis.
Classical.LongitudeOfPeriapsis Rate	AngleRate	Real Number	Rate of change of longitude of periapsis.
Classical.MeanLongitude	Longitude	Real Number or Text	Mean longitude.
Classical.MeanLongitude Rate	AngleRate	Real Number	Rate of change of mean longitude.
Classical.TimePastAN	Time	Real Number	Time past Ascending Node.
Classical.TimePastAN Rate	Unitless	Real Number	Rate of change of time past Ascending Node.
Classical.TimePastPeriapsis	Time	Real Number	Time past periapsis.
Classical.TimePastPeriapsis Rate	Unitless	Real Number	Rate of change of time past periapsis.
Spherical.RightAscension	Longitude	Real Number or Text	Right ascension.
Spherical.RightAscension Rate	AngleRate	Real Number	Rate of change of right ascension.
Spherical.Declination	Angle	Real Number or Text	Declination.
Spherical.Declination Rate	AngleRate	Real Number	Rate of change of declination.
Spherical.Radius	Distance	Real Number	Radius of position in orbit relative to central body.
Spherical.Radius Rate	Rate	Real Number	Rate of change of radius of position in orbit relative to central body.
Spherical.FlightPathAngle	Angle	Real Number or Text	Flight path angle.
Spherical.FlightPathAngle Rate	AngleRate	Real Number	Rate of change of flight path angle.
Spherical.FlightPathAzimuth	Angle	Real Number or Text	Flight path azimuth.
Spherical.FlightPathAzimuth Rate	AngleRate	Real Number	Rate of change of flight path azimuth.
Spherical.Speed	Rate	Real Number	Speed.
Spherical.Speed Rate	Acceleration	Real Number	Rate of change of speed.
Spherical.VerticalFlightPathAngle	Angle	Real Number or Text	Vertical flight path angle.
Spherical.VerticalFlightPathAngle Rate	AngleRate	Real Number	Rate of change of vertical flight path angle.
Delaunay.GM	Grav Parameter	Real Number	Gravitational parameter of central body.
Delaunay.GM Rate	Unitless	Real Number	Rate of change of gravitational parameter of central body.
Delaunay.AngularMomentumZ	Area Rate	Real Number	Z component of orbit angular momentum vector.
Delaunay.AngularMomentumZ Rate	Rate Squared	Real Number	Rate of change of Z component of orbit angular momentum vector.
Delaunay.AngularMomentum	Area Rate	Real Number	Magnitude of orbit angular momentum.
Delaunay.AngularMomentum Rate	Rate Squared	Real Number	Rate of change of magnitude of orbit angular momentum.
Delaunay.L	Area Rate	Real Number	L variable.
Delaunay.L Rate	Rate Squared	Real Number	Rate of change of the L variable.
Delaunay.RAAN	Longitude	Real Number or Text	Right Ascension of Ascending Node.
Delaunay.RAAN Rate	AngleRate	Real Number	Rate of change of Right Ascension of Ascending Node.
Delaunay.ArgumentOfPeriapsis	Angle	Real Number or Text	Argument of periapsis.
Delaunay.ArgumentOfPeriapsis Rate	AngleRate	Real Number	Rate of change of argument of periapsis.
Delaunay.MeanAnomaly	Angle	Real Number or Text	Mean anomaly.
Delaunay.MeanAnomaly Rate	AngleRate	Real Number	Rate of change of mean anomaly.
Equinoctial.Posigrade.GM	Grav Parameter	Real Number	Gravitational parameter of central body.
Equinoctial.Posigrade.GM Rate	Unitless	Real Number	Rate of change of gravitational parameter of central body.
Equinoctial.Posigrade.SemimajorAxis	Distance	Real Number	Semimajor axis.
Equinoctial.Posigrade.SemimajorAxis Rate	Rate	Real Number	Rate of change of semimajor axis.
Equinoctial.Posigrade.h	Unitless	Real Number	h = eccentricity * sin(right_ascension_of_the_ascending_node + argument_of_periapse). Equinoctial elements h and k together describe the shape of the orbit and the location of the periapse.
Equinoctial.Posigrade.h Rate	Unitless Per Time	Real Number	Rate of change of h.
Equinoctial.Posigrade.k	Unitless	Real Number	k = eccentricity * cos(right_ascension_of_the_ascending_node + argument_of_periapse). Equinoctial elements h and k together describe the shape of the orbit and the location of the periapse.
Equinoctial.Posigrade.k Rate	Unitless Per Time	Real Number	Rate of change of k.
Equinoctial.Posigrade.p	Unitless	Real Number	p = tan(inclination/2) * sin(right_ascension_of_the_ascending_node). Equinoctial elements p and q together describe the orientation of the orbit plane. Retrograde orbits have a singularity at zero inclination, and posigrade orbits have a singularity at 180 deg inclination.
Equinoctial.Posigrade.p Rate	Unitless Per Time	Real Number	Rate of change of p.
Equinoctial.Posigrade.q	Unitless	Real Number	q = tan(inclination/2) * cos(right_ascension_of_the_ascending_node). Equinoctial elements p and q together describe the orientation of the orbit plane. Retrograde orbits have a singularity at zero inclination, and posigrade orbits have a singularity at 180 deg inclination.
Equinoctial.Posigrade.q Rate	Unitless Per Time	Real Number	Rate of change of q.
Equinoctial.Posigrade.MeanLongitude	Longitude	Real Number or Text	Mean longitude is the sum: right_ascension_of_the_ascending_node + argument_of_periapse + mean_anomaly. A measure of the location within the orbit.
Equinoctial.Posigrade.MeanLongitude Rate	AngleRate	Real Number	Rate of change of MeanLongitude.
Equinoctial.Retrograde.GM	Grav Parameter	Real Number	Gravitational parameter of central body.
Equinoctial.Retrograde.GM Rate	Unitless	Real Number	Rate of change of gravitational parameter of central body.
Equinoctial.Retrograde.SemimajorAxis	Distance	Real Number	Semimajor axis.
Equinoctial.Retrograde.SemimajorAxis Rate	Rate	Real Number	Rate of change of semimajor axis.
Equinoctial.Retrograde.h	Unitless	Real Number	h = eccentricity * sin(right_ascension_of_the_ascending_node + argument_of_periapse). Equinoctial elements h and k together describe the shape of the orbit and the location of the periapse.
Equinoctial.Retrograde.h Rate	Unitless Per Time	Real Number	Rate of change of h.
Equinoctial.Retrograde.k	Unitless	Real Number	k = eccentricity * cos(right_ascension_of_the_ascending_node + argument_of_periapse). Equinoctial elements h and k together describe the shape of the orbit and the location of the periapse.
Equinoctial.Retrograde.k Rate	Unitless Per Time	Real Number	Rate of change of k.
Equinoctial.Retrograde.p	Unitless	Real Number	p = tan(inclination/2) * sin(right_ascension_of_the_ascending_node). Equinoctial elements p and q together describe the orientation of the orbit plane. Retrograde orbits have a singularity at zero inclination, and posigrade orbits have a singularity at 180 deg inclination.
Equinoctial.Retrograde.p Rate	Unitless Per Time	Real Number	Rate of change of p.
Equinoctial.Retrograde.q	Unitless	Real Number	q = tan(inclination/2) * cos(right_ascension_of_the_ascending_node). Equinoctial elements p and q together describe the orientation of the orbit plane. Retrograde orbits have a singularity at zero inclination, and posigrade orbits have a singularity at 180 deg inclination.
Equinoctial.Retrograde.q Rate	Unitless Per Time	Real Number	Rate of change of q.
Equinoctial.Retrograde.MeanLongitude	Longitude	Real Number or Text	Mean longitude is the sum: right_ascension_of_the_ascending_node + argument_of_periapse + mean_anomaly. A measure of the location within the orbit.
Equinoctial.Retrograde.MeanLongitude Rate	AngleRate	Real Number	Rate of change of MeanLongitude.
PolarNodal.Radius	Distance	Real Number	The radius value (i.e. magnitude of the position vector).
PolarNodal.Radius Rate	Rate	Real Number	The rate of change of the magnitude of the position vector, computed as rDot = dotProduct(posVec, velVec)/rMag.
PolarNodal.TrueLongitude	Angle	Real Number or Text	True longitude, computed as the angle between the position vector and the X-axis of the equinoctial axes derived for the specified reference system. The equinoctial axes are derived as the rotation about the nodal vector by the inclination, where the nodal vector is found as crossProduct(Zaxis, hVecHat) (see PolarNodal.CosInclination). The value is the sum of true anomaly, argument of perigee and raan.
PolarNodal.TrueLongitude Rate	AngleRate	Real Number	The rate of change of the TrueLongitude. The value is composed of two parts: the angular rate and a term depending on the acceleration.
PolarNodal.RadiusRate	Rate	Real Number	The rate of change of the magnitude of the position vector, computed as rDot = dotProduct(posVec, velVec)/rMag.
PolarNodal.RadiusRate Rate	Acceleration	Real Number	The rate of change of the radius rate, computed as the sum of the radial acceleration and rMag*AngularRate^2.
PolarNodal.TransverseRate	Rate	Real Number	The magnitude of the component of the velocity vector perpendicular to the position vector.
PolarNodal.TransverseRate Rate	Acceleration	Real Number	The rate of change of the TransverseRate, whose value is hDot / rMag - AngularRate * rDot.
PolarNodal.AngularMomentum	Area Rate	Real Number	The magnitude of hVec, with hVec = crossProduct(posVec, velVec).
PolarNodal.AngularMomentum Rate	Rate Squared	Real Number	The rate of change of AngularMomentum, whose value is dotProduct(hVecDot, hVecHat).
PolarNodal.CosInclination	Unitless	Real Number	The Z component of the unit angular momentum vector hVecHat, where hVecHat = hVec / h, with hVec = crossProduct(posVec, velVec) and h being the magitude of hVec. This is the same as cos(Inclination).
PolarNodal.CosInclination Rate	Unitless Per Time	Real Number	The rate of change of the Z component of the unit angular momentum vector. This is the same as -sin(Inclination)*InclinationDot when the Inclination is not 0 or 180 degs.
PolarNodal.NodeX	Unitless	Real Number	The X component of the nodal vector, where the nodal vector is found as crossProduct(Zaxis, hVecHat) (see PolarNodal.CosInclination). This is the same as the negative of Y component of hVecHat.
PolarNodal.NodeX Rate	Unitless Per Time	Real Number	The rate of change of NodeX, computed from hVecHatDot.
PolarNodal.NodeY	Unitless	Real Number	The Y component of the nodal vector, where the nodal vector is found as crossProduct(Zaxis, hVecHat) (see PolarNodal.CosInclination). This is the same as the X component of hVecHat.
PolarNodal.NodeY Rate	Unitless Per Time	Real Number	The rate of change of NodeY, computed from hVecHatDot.
PolarNodal.AngularRate	AngleRate	Real Number	The angular rate of the position vector, i.e., the magnitude of the angular velocity of the unit vector aligned with the position vector, computed as h/rMag^2 where rMag is the magnitude of the position and h is the magnitude of crossProduct(posVec, velVec).
PolarNodal.AngularRate Rate	AngleAccel	Real Number	The rate of change of the angular rate, computed as hDot/rMag^2 - 2*h/rMag^2*rMagDot.