TDRSObservation Object

Signatures

Description

TDRSObservation()

Create a TDRSObservation object without associating it with any other objects.

TDRSObservation(GroundAntenna objectTakingMeasurement, TDRSTransponder tdrsRelay, Spacecraft objectBeingMeasured)

Create a TDRSObservation object, and associate it with the "objectTakingMeasurement", "tdrsRelay", and "objectBeingMeasured".

TDRSObservation(GroundAntenna objectTakingMeasurement, TDRSTransponder tdrsRelay, Transponder transponderObjectBeingMeasured)

Create a TDRSObservation object, and associate it with the "objectTakingMeasurement", "tdrsRelay", and "transponderObjectBeingMeasured".

TDRSObservation(GroundAntenna objectTakingMeasurement, TDRSTransponder tdrsRelay, Transponder transponderObjectBeingMeasured, Sensor sensorReceivingSignal)

Create a TDRSObservation object, and associate it with the "objectTakingMeasurement", "tdrsRelay", "transponderObjectBeingMeasured", and "sensorReceivingSignal".

TDRSObservation(GroundAntenna objectTakingMeasurement, TDRSTransponder tdrsRelay, Sensor tdrsRelaySensor, Transponder transponderObjectBeingMeasured, Sensor sensorReceivingSignal)

Create a TDRSObservation object, and associate it with the "objectTakingMeasurement", "tdrsRelay", "tdrsRelaySensor", "transponderObjectBeingMeasured", and "sensorReceivingSignal".

Name

Description

Attributes

DeclaredName

The name of the object as declared.

Type:   String

Access: Read-Only

Name

The name displayed for this object in output windows such as views, plots, and reports.

Type:   String

Access: Read/Write

ObjectBeingObserved

The Spacecraft being observed.

Type:   Object

Access: Read-Only

ObjectId

The unique identifier for the object.

Type:   Variable

Access: Read-Only

ObjectType

The type of the object.

Type:   String

Access: Read-Only

ObservedEpoch

The epoch of the Observation in TAI.

Type:   Variable

Access: Read/Write

Units:   day

ObservedSensor

The Sensor attached to the Transponder being observed. The Sensor's X, Y, and Z position properties will be used to model an offset from the origin of the Spacecraft BCS when modeling measurements. This property is optional.

Type:   Sensor

Access: Read-Only

Observer

The Ground Antenna transmitting the ranging signal.

Type:   Object

Access: Read-Only

OneWayDoppler

The one-way Doppler measurement associated with this TDRSObservation, in units of Hz.

Type:   Measurement

Access: Read-Only

RelaySensor

The Sensor attached to the TDRS Transponder of the TDRS Relay Spacecraft. The Sensor's X, Y, and Z position properties will be used to model an offset from the origin of the Spacecraft BCS when modeling measurements. This property is optional.

Type:   Sensor

Access: Read-Only

TDRSRelay

The Transponder of the TDRS Relay Spacecraft.

Type:   Object

Access: Read-Only

TranslationFrequency

Pilot-tone frequency translation from the return-link TDRS. This is computed from the configuration set in the TDRSTransponder, and can be evaluated using the TDRSTransponder.GetPilotToneFrequencyTranslation method.

Type:   Variable

Access: Read/Write

Units:   Hz

TwoWayDoppler

The two-way Doppler measurement associated with this TDRSObservation, in units of Hz.

Type:   Measurement

Access: Read-Only

TwoWayRange

The two-way Range measurement associated with this TDRSObservation, in units of km.

Type:   Measurement

Access: Read-Only

UseIonosphericCorrection

A flag indicating whether or not the Ionospheric correction will be used. The Ionospheric correction is calculated when at least one of the objects references the Earth as its Central Body.

Type:   Variable

Access: Read/Write

UseLightTimeCorrection

A flag indicating whether or not the Light-Time correction will be used.

Type:   Variable

Access: Read/Write

UseOneWayDoppler

A flag indicating whether or not the one-way Doppler measurement will be used.

Type:   Variable

Access: Read/Write

UserTransmitFrequency

The effective transmit frequency of the user spacecraft. This maps to the TDRSTranpsonder.TransmitFrequency property.

Type:   Variable

Access: Read/Write

Units:   Hz

UseTroposphericCorrection

A flag indicating whether or not the Tropospheric correction will be used. The Tropospheric correction is only calculated when the Observing Ground Antenna references the Earth as its Central Body.

Type:   Variable

Access: Read/Write

UseTwoWayDoppler

A flag indicating whether or not the two-way Doppler measurement will be used.

Type:   Variable

Access: Read/Write

UseTwoWayRange

A flag indicating whether or not the two-way Range measurement will be used.

Type:   Variable

Access: Read/Write

WasUnderweightingUsed

A flag indicating whether or not measurement underweighting was used as part of the filter state and covariance update for this observation.

Type:   Variable

Access: Read-Only

Name

Description

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.

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.

Restore

Restore an object's state from a previously saved state.

Save

Save the object's state so that it can be restored later.

SetObjectBeingObserved

Set the given object as the Object Being Observed for this Observation.

SetObserver

Set the given object as the Observing Object for this Observation.

SetTDRSRelay

Set the given object as the TDRS Relay Object for this Observation.