TDRSTransponder Object

Name

Description

AttachedSensors

An array of Sensor objects attached to the TDRS Transponder to act as antennas for measurement modeling purposes. 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.

DeclaredName

The name of the object as declared.

DisplayName

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

FrequencyBandID

The frequency band ID of the user Spacecraft in a TDRS/user link. This property is not currently used.

ObjectId

The unique identifier for the object.

ObjectType

The type of the object.

OD

This property contains the OD settings for all the TDRSTransponder properties that can be estimated.

ReceiveFrequency

Frequency at which the Transponder receives data.

ReturnLinkID

The return link ID from the user Spacecraft to the TDRS in a TDRS/user link. This property is not currently used.

ServiceConfiguration

The service configuration ID for TDRS transmission link. This property is not currently used.

SMAReturnFrequencyId

Space-Ground Link (SGL) S-Band Multiple Access Return (SMAR) Downlink Frequency ID. This is used to compute the pilot tone frequency translation for TDRS I/J/K multi access services.

TrackerType

The tracker type for services.

TranslationFrequency

Multi-Access reference frequency for return doppler tracking. Note that this is different than the pilot tone frequency translation on the TDRSObservation and BRTSObservation, as it only pertains to the multi-access service.

TransmitFrequency

Frequency at which the Transponder transmits data. Note that this maps to the user or remote terminal transmit frequency and ultimately maps to the UserTransmitFrequency on the TDRSObservation or the BRTSTransmitFrequency on the BRTSObservation.

UseKuBand

A flag indicating whether or not to use the Ku-Band frequency. The antenna and frequency band flags are used to determine the Pilot Tone Frequency Translation for the return link.

UseMultipleAccess

A flag indicating whether or not to use the Multiple Access antennas. The antenna and frequency band flags are used to determine the Pilot Tone Frequency Translation for the return link.

UseSBand

A flag indicating whether or not to use the S-Band frequency. The antenna and frequency band flags are used to determine the Pilot Tone Frequency Translation for the return link.

UseSingleAccess1

A flag indicating whether or not to use the primary Single Access antenna. The antenna and frequency band flags are used to determine the Pilot Tone Frequency Translation for the return link.

UseSingleAccess2

A flag indicating whether or not to use the secondary Single Access antenna. The antenna and frequency band flags are used to determine the Pilot Tone Frequency Translation for the return link.

Name

Description

Attach

Attach a Sensor object to the calling hardware object for the purposes of simulating tracking data or performing Orbit Determination. 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.

ClearSavedStates

Clears previous saved states for this object.

Detach

Detach a Sensor object from the calling hardware object.

GetFromFile

Load the object state from the specified FreeFlyer object file.

GetFromString

Load the object state from the specified string.

GetPilotToneFrequencyTranslation

Get the pilot tone frequency translation used in computing the TDRS doppler component for the short / 2-leg path. The value returned from this method maps to the TDRSObservation's and BRTSObservation's TranslationFrequency property.

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.