ODEstimationProcess Object

Description

The ODEstimationProcess object is a base type that provides covariance, maximum allowable sigma, objects to process, and step size properties to the objects that derive from it. See the Orbit Determination Guide for more information.

Users cannot create instances of this type of object. However, users can access instances of this object type that have been created indirectly, for example as children of other objects. Users can also access any static properties and methods on this object type.

Inheritance Hierarchy: Object->ODEstimationProcess

Derived Types: BatchLeastSquaresOD, SequentialFilter, KalmanFilterOD, UnscentedKalmanFilterOD, SquareRootInformationFilterOD

Available In Editions:

Engineer

Mission

Timing Precision Mode

This page describes functionality in nanosecond timing precision mode.

Click here to see the documentation for this object in millisecond timing precision mode.

Name	Description
AddObjectToProcess	Include the object in the Estimation process. Whether the object properties are Estimated, Considered, or Ignored is determined by the object's ProcessAction flags.
AddThrustEventToSequence	Adds a ThrustEvent to the OD Estimation sequence, and associates it with a spacecraft to which the thrust event will be applied.
ClearSavedStates	Clears previous saved states for this object.
GetFromFile	Load the object state from the specified FreeFlyer object file.
GetFromString	Load the object state from the specified string.
GetPostUpdateResidualStatistics	Computes statistics on the list of Observations which are in the Observation Buffer. Returns the number of measurement types included in the Observation buffer.
GetPreUpdateResidualStatistics	Computes statistics on the list of Observations which are in the Observation Buffer. Returns the number of measurement types included in the Observation buffer.
GetProcessingStatus	Computes the total number of measurements that were Accepted, Rejected, or Not Processed for the list of Observations which are in the Observation Buffer. Returns the number of measurement types included in the Observation buffer.
GetPropertiesInStateVector	Gets the list of properties included in the state vector for the ODEstimation object.
PutToFile	Convert the object state to FreeFlyer object xml and write to a file.
PutToString	Convert the object state to FreeFlyer object xml and return as a string.
ReferenceEquals	Returns 1 if the argument refers to the calling object and 0 otherwise.
RegisterOrbitStateObservationGenerator	Register the specified trajectory observation generator with the OD estimator process.
RegisterTrackingDataFile	Register the specified tracking data file with the OD estimator process.
Reset	Reset the estimation process, closing out all associated tracking data files, and clearing out any observation buffers.
Restore	Restore an object's state from a previously saved state.
Save	Save the object's state so that it can be restored later.
SetAprioriCovariance	Sets the apriori covariance matrix for the estimation process. This must be called prior to starting the estimation process, and must match the dimension of the state vector.
SetAprioriSquareRootInformation	Sets the apriori square root information matrix for the estimation process. This must be called prior to starting the estimation process, and must match the dimension of the state vector.