Class PredictionModel

Namespace

NominalSystems.Universe

Assembly

NominalSystems.Universe.dll

[Nominal] The prediction model is produced by the prediction engine and is able to calculate pass times based on the paths of the objects. This will already store a list of data points for the object and will be able to calculate individual states and access times.

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public class PredictionModel

Inheritance

object

PredictionModel

Properties

Count

The number of times that the prediction is being made for.

public int Count { get; }

Property Value

int

Methods

GetAccess(GeodeticElements, double, double, double)

Calculates the access of a particular observer to the object at a particular time. This will return the slant range, elevation and azimuth of the object. Additionally, access parameters such as minimum elevation and maximum range can be set.

public SpacecraftAccess GetAccess(GeodeticElements observer, double time, double minElevation = 0, double maxRange = 0)

Parameters

observer GeodeticElements

The geodetic location of the observer

time double

[s] The time to look up the data for

minElevation double

[deg] The minimum angle above the horizon that is accessible

maxRange double

[m] The maximum range between the two objects. If less than or equal to zero, there is no maximum

Returns

SpacecraftAccess

The access data containing the information about a particular access

GetAccess(GroundStation, double)

Calculates the access of a particular ground station at a particular point in time. This will return the slant range, elevation and azimuth of the object.

public SpacecraftAccess GetAccess(GroundStation station, double time)

Parameters

station GroundStation

The ground station to calculate the passes with the object for

time double

[s] The time to lookup the data for

Returns

SpacecraftAccess

The access data containing the information about a particular access

GetGeodetics()

Returns a list of all geodetic elements, as a geodetic coordinate, from the current prediction states.

public GeodeticElements[] GetGeodetics()

Returns

GeodeticElements[]

A list of all geodetics

GetPasses(GeodeticElements, double, double)

Calculates the passes between the object in the simulation and a stationary observer as a geodetic location. This will return a list of passes that are accessible to the observer. The minimum elevation and maximum range can be set to filter the passes.

public PredictionPass[] GetPasses(GeodeticElements observer, double minElevation = 0, double maxRange = 0)

Parameters

observer GeodeticElements

The location of the observer as a geodetic coordinate

minElevation double

[deg] The minimum angle above the horizon that is accessible

maxRange double

[m] The maximum range between the two objects. If less than or equal to zero, there is no maximum

Returns

PredictionPass[]

A list of prediction passes that will occur over the current path

GetPasses(GroundStation)

Calculates the passes and information between the object and a particular ground station, based on the ground station properties.

public PredictionPass[] GetPasses(GroundStation station)

Parameters

station GroundStation

The ground station to calculate the passes with the object for

Returns

PredictionPass[]

A list of prediction passes that will occur over the current path

GetPositions()

Returns a list of all positions, as an ECI coordinate in meters, from the current prediction states.

public Vector3[] GetPositions()

Returns

Vector3[]

A list of all positions

GetState(double)

Computes the state of the object at a particular time. This also uses a linear interpolation to calculate the state.

public VectorElements GetState(double time)

Parameters

time double

[s] The time to lookup

Returns

VectorElements

[m] The position and velocity of the object at a point in calculated time