SN Doppler processing seems to require me to set the user (Aqua) transponder turn-around ratio to ‘1:1’ and the TDRS transponder ratio to ‘1:1’ for things to look good. I expected to set the Aqua turnaround ratio to ‘240:221’, but that makes the Doppler look bad.
Rename TrackingFileSet.SimTDRSDataFlag to SimTDRSTrackerType. This name better matches the name given in the UTDF spec for this parameter.
Rename TrackingFileSet.SimTDRSNode4Frequency to SimTDRSNominalUserTransmitFrequency.
Set a default value for TrackingFileSet.SimTDRSServiceAccessList
Not sure if GTDS applies any iono correction for TDRS user data. Obs and residuals look the same with and without iono on. Need to check with Mark on this.
See SES script /home/sslojkow/gmat/tdrsuser/aqua_elem_gtds.dc
(For SES) Remove TEST mode flag from all existing TDRS data test cases.
Review deferred test list and un-defer any TDRS test cases
Setting MaxCentralAngleOfRayPath to a wide-open value (180 degrees) causes GMAT to ignore the central body occultation check. This check should always be performed.
MaxCentralAngleOfRayPath should allow the values of 0 and 180.
Estimation of ThrustScaleFactor does not work with TDRS data. An error message appears ODEModel Exception Thrown: Multiple Spacecraft are not allowed in a propagator driving a finite burn; try breaking commands of the form "Propagate prop(sat1, sat2)" that execute with a finite burn on one of the spacecraft into two synchronized propagators; e.g. "Propagate Synchronized prop(sat1) prop(sat2)"
See test case ThrustSegment_SolveFors_ThrustScaleFactor_SN
Estimation of N-Plate area coefficient does not work with TDRS data. An error message appears GmatBase Exception Thrown: GmatBase::GetParameterID() The object named "EstPlate1" of type "Plate" has no parameter defined with "StmElementNames"
See test case Plate_SolveFors_AreaCoefficient_SN
Errors due to transponder delay modeling are slightly larger than expected, in approximately the 10 or 11 significant digit. This is probably OK, but want concurrence from the team
See test case Transponder_HardwareDelay_Sim_SnRange