Ejemplo n.º 1
0
        public void get_InitialState(IAgVAMCSInitialState InitStateObj, int depth, List <string> localParent)
        {
            depth++;
            #region List Header
            l_SegObj.Add(null);
            l_Names.Add("Orbit State/Elements");
            l_unit.Add("");
            l_Values.Add(double.PositiveInfinity);
            l_types.Add(" ");
            l_depth.Add(depth);
            l_isQuantity.Add(false);
            l_implemClass.Add(implem_Classes.NULL);
            l_localParents.Add(localParent);
            #endregion

            AgEVAElementType m_CoordType = InitStateObj.ElementType;
            if (m_CoordType == AgEVAElementType.eVAElementTypeKeplerian)
            {
                IAgVAElementKeplerian keplerState = InitStateObj.Element as IAgVAElementKeplerian;
                OrbElems.Add("Apoapsis Altitude", keplerState.ApoapsisAltitudeSize); l_unit.Add(units.u_Distance);
                OrbElems.Add("Apoapsis Radius", keplerState.ApoapsisRadiusSize); l_unit.Add(units.u_Distance);
                OrbElems.Add("Eccentricity", keplerState.Eccentricity); l_unit.Add(units.u_Null);
                OrbElems.Add("Inclination", keplerState.Inclination); l_unit.Add(units.u_Angle);
                OrbElems.Add("RAAN", keplerState.RAAN); l_unit.Add(units.u_Angle);
                OrbElems.Add("True Anomaly", keplerState.TrueAnomaly); l_unit.Add(units.u_Angle);
                OrbElems.Add("Semi-Major Axis", keplerState.SemiMajorAxis); l_unit.Add(units.u_Distance);
                OrbElems.Add("Period", keplerState.Period); l_unit.Add(units.u_Time);
                OrbElems.Add("Mean Motion", keplerState.MeanMotion); l_unit.Add(units.u_AngleRate);
                OrbElems.Add("Arg Of Latitude", keplerState.ArgOfLatitude); l_unit.Add(units.u_Angle);
                OrbElems.Add("Arg Of Periapsis", keplerState.ArgOfPeriapsis); l_unit.Add(units.u_Angle);
                OrbElems.Add("Mean Anomaly", keplerState.MeanMotion); l_unit.Add(units.u_Angle);
                OrbElems.Add("LAN", keplerState.LAN); l_unit.Add(units.u_Angle);
                OrbElems.Add("Periapsis Altitude", keplerState.PeriapsisAltitudeSize); l_unit.Add(units.u_Distance);
                OrbElems.Add("Periapsis Radius", keplerState.PeriapsisRadiusSize); l_unit.Add(units.u_Distance);

                update_Lists(OrbElems, depth, InitStateObj, implem_Classes.Astg_InitState, localParent);
            }
            else if (m_CoordType == AgEVAElementType.eVAElementTypeCartesian)
            {
                IAgVAElementCartesian cartesianState = InitStateObj.Element as IAgVAElementCartesian;
                OrbElems.Add("X", cartesianState.X); l_unit.Add(units.u_Distance);
                OrbElems.Add("Y", cartesianState.Y); l_unit.Add(units.u_Distance);
                OrbElems.Add("Z", cartesianState.Z); l_unit.Add(units.u_Distance);
                OrbElems.Add("Vx", cartesianState.Vx); l_unit.Add(units.u_Velocity);
                OrbElems.Add("Vy", cartesianState.Vy); l_unit.Add(units.u_Velocity);
                OrbElems.Add("Vz", cartesianState.Vz); l_unit.Add(units.u_Velocity);
                update_Lists(OrbElems, depth, InitStateObj, implem_Classes.Astg_InitState, localParent);
            }
        }
Ejemplo n.º 2
0
        public static PropagationResults PropagateAstrogatorSatellite(AgStkObjectRoot root, AgUiApplication app, InitialState state, TLE tle, Data satData, Uncertainty uncertainty, int runId, int nRuns, string propName)
        {
            PropagationResults propResults = new PropagationResults();

            propResults.RunNumber = runId.ToString().PadLeft(3, '0');
            IAgSatellite sat = root.CurrentScenario.Children.New(AgESTKObjectType.eSatellite, tle.GetSatNumber() + "Astrogator") as IAgSatellite;

            //Set the propagator to Astrogator
            sat.SetPropagatorType(AgEVePropagatorType.ePropagatorAstrogator);
            //get the Driver for the Propagator
            IAgVADriverMCS driver = sat.Propagator as IAgVADriverMCS;

            //Clear all segments from the MCS
            driver.MainSequence.RemoveAll();

            //// Target Sequence ////
            IAgVAMCSTargetSequence ts = driver.MainSequence.Insert(AgEVASegmentType.eVASegmentTypeTargetSequence, "SetupState", "-") as IAgVAMCSTargetSequence;

            ts.Action = AgEVATargetSeqAction.eVATargetSeqActionRunActiveProfiles;

            // add the initial state segment in the target sequence
            IAgVAMCSInitialState initState = ts.Segments.Insert(AgEVASegmentType.eVASegmentTypeInitialState, "InitialState", "-") as IAgVAMCSInitialState;

            initState.OrbitEpoch = ((IAgScenario)root.CurrentScenario).StartTime;
            // define elements
            initState.SetElementType(AgEVAElementType.eVAElementTypeCartesian);
            IAgVAElementCartesian cart = initState.Element as IAgVAElementCartesian;

            cart.X  = Convert.ToDouble(state.CartesianPosX);
            cart.Y  = Convert.ToDouble(state.CartesianPosY);
            cart.Z  = Convert.ToDouble(state.CartesianPosZ);
            cart.Vx = Convert.ToDouble(state.CartesianVelX);
            cart.Vy = Convert.ToDouble(state.CartesianVelY);
            cart.Vz = Convert.ToDouble(state.CartesianVelZ);

            // spacecraft parameters
            IAgVASpacecraftParameters spacecraftParameters = (IAgVASpacecraftParameters)initState.SpacecraftParameters;

            spacecraftParameters.DryMass  = satData.Mass;
            spacecraftParameters.Cd       = satData.Cd;
            spacecraftParameters.DragArea = satData.DragArea;
            spacecraftParameters.Cr       = satData.Cr;
            spacecraftParameters.SolarRadiationPressureArea = satData.SunArea;
            spacecraftParameters.RadiationPressureArea      = 1e-10;
            IAgVAFuelTank fuelTank = (IAgVAFuelTank)initState.FuelTank;

            fuelTank.FuelMass = 0;

            // enable the control parameter for the state variables
            initState.EnableControlParameter(AgEVAControlInitState.eVAControlInitStateCartesianX);
            initState.EnableControlParameter(AgEVAControlInitState.eVAControlInitStateCartesianY);
            initState.EnableControlParameter(AgEVAControlInitState.eVAControlInitStateCartesianZ);
            initState.EnableControlParameter(AgEVAControlInitState.eVAControlInitStateCartesianVx);
            initState.EnableControlParameter(AgEVAControlInitState.eVAControlInitStateCartesianVy);
            initState.EnableControlParameter(AgEVAControlInitState.eVAControlInitStateCartesianVz);

            // add the results
            ((IAgVAMCSSegment)initState).Results.Add("Relative Motion/InTrack");
            IAgVAStateCalcRelMotion intrackRel = ((IAgVAMCSSegment)initState).Results[0] as IAgVAStateCalcRelMotion;

            intrackRel.ReferenceSelection = AgEVACalcObjectReference.eVACalcObjectReferenceSpecified;
            IAgLinkToObject link_1 = intrackRel.Reference as IAgLinkToObject;

            link_1.BindTo("Satellite/" + tle.GetSatNumber().ToString());

            ((IAgVAMCSSegment)initState).Results.Add("Relative Motion/Radial");
            IAgVAStateCalcRelMotion radialRel = ((IAgVAMCSSegment)initState).Results[1] as IAgVAStateCalcRelMotion;

            radialRel.ReferenceSelection = AgEVACalcObjectReference.eVACalcObjectReferenceSpecified;
            IAgLinkToObject link_2 = radialRel.Reference as IAgLinkToObject;

            link_2.BindTo("Satellite/" + tle.GetSatNumber().ToString());

            ((IAgVAMCSSegment)initState).Results.Add("Relative Motion/CrossTrack");
            IAgVAStateCalcRelMotion crosstrackRel = ((IAgVAMCSSegment)initState).Results[2] as IAgVAStateCalcRelMotion;

            crosstrackRel.ReferenceSelection = AgEVACalcObjectReference.eVACalcObjectReferenceSpecified;
            IAgLinkToObject link_3 = crosstrackRel.Reference as IAgLinkToObject;

            link_3.BindTo("Satellite/" + tle.GetSatNumber().ToString());

            ((IAgVAMCSSegment)initState).Results.Add("Relative Motion/InTrackRate");
            IAgVAStateCalcRelMotion intrackrateRel = ((IAgVAMCSSegment)initState).Results[3] as IAgVAStateCalcRelMotion;

            intrackrateRel.ReferenceSelection = AgEVACalcObjectReference.eVACalcObjectReferenceSpecified;
            IAgLinkToObject link_4 = intrackrateRel.Reference as IAgLinkToObject;

            link_4.BindTo("Satellite/" + tle.GetSatNumber().ToString());

            ((IAgVAMCSSegment)initState).Results.Add("Relative Motion/RadialRate");
            IAgVAStateCalcRelMotion radialrateRel = ((IAgVAMCSSegment)initState).Results[4] as IAgVAStateCalcRelMotion;

            radialrateRel.ReferenceSelection = AgEVACalcObjectReference.eVACalcObjectReferenceSpecified;
            IAgLinkToObject link_5 = radialrateRel.Reference as IAgLinkToObject;

            link_5.BindTo("Satellite/" + tle.GetSatNumber().ToString());

            ((IAgVAMCSSegment)initState).Results.Add("Relative Motion/CrossTrackRate");
            IAgVAStateCalcRelMotion crosstrackrateRel = ((IAgVAMCSSegment)initState).Results[5] as IAgVAStateCalcRelMotion;

            crosstrackrateRel.ReferenceSelection = AgEVACalcObjectReference.eVACalcObjectReferenceSpecified;
            IAgLinkToObject link_6 = crosstrackrateRel.Reference as IAgLinkToObject;

            link_6.BindTo("Satellite/" + tle.GetSatNumber().ToString());

            /// differential corrector setup ///
            IAgVAProfileDifferentialCorrector dc = ts.Profiles["Differential Corrector"] as IAgVAProfileDifferentialCorrector;

            // control parameters
            IAgVADCControl xControlParam = dc.ControlParameters.GetControlByPaths("InitialState", "InitialState.Cartesian.X");

            xControlParam.Enable       = true;
            xControlParam.MaxStep      = 1;
            xControlParam.Perturbation = 0.1;
            IAgVADCControl yControlParam = dc.ControlParameters.GetControlByPaths("InitialState", "InitialState.Cartesian.Y");

            yControlParam.Enable       = true;
            yControlParam.MaxStep      = 1;
            yControlParam.Perturbation = 0.1;
            IAgVADCControl zControlParam = dc.ControlParameters.GetControlByPaths("InitialState", "InitialState.Cartesian.Z");

            zControlParam.Enable       = true;
            zControlParam.MaxStep      = 1;
            zControlParam.Perturbation = 0.1;
            IAgVADCControl vxControlParam = dc.ControlParameters.GetControlByPaths("InitialState", "InitialState.Cartesian.Vx");

            vxControlParam.Enable       = true;
            vxControlParam.MaxStep      = 0.001;
            vxControlParam.Perturbation = 1e-04;
            IAgVADCControl vyControlParam = dc.ControlParameters.GetControlByPaths("InitialState", "InitialState.Cartesian.Vy");

            vyControlParam.Enable       = true;
            vyControlParam.MaxStep      = 0.001;
            vyControlParam.Perturbation = 1e-04;
            IAgVADCControl vzControlParam = dc.ControlParameters.GetControlByPaths("InitialState", "InitialState.Cartesian.Vz");

            vzControlParam.Enable       = true;
            vzControlParam.MaxStep      = 0.001;
            vzControlParam.Perturbation = 1e-04;

            // results
            double[] deviations = uncertainty.GetRandomDeviation();

            IAgVADCResult intrackResult = dc.Results.GetResultByPaths("InitialState", "InTrack");

            intrackResult.Enable       = true;
            intrackResult.DesiredValue = deviations[0];
            intrackResult.Tolerance    = 0.01;
            IAgVADCResult radialResult = dc.Results.GetResultByPaths("InitialState", "Radial");

            radialResult.Enable       = true;
            radialResult.DesiredValue = deviations[1];
            radialResult.Tolerance    = 0.01;
            IAgVADCResult crosstrackResult = dc.Results.GetResultByPaths("InitialState", "CrossTrack");

            crosstrackResult.Enable       = true;
            crosstrackResult.DesiredValue = deviations[2];
            crosstrackResult.Tolerance    = 0.01;
            IAgVADCResult intrackRateResult = dc.Results.GetResultByPaths("InitialState", "InTrackRate");

            intrackRateResult.Enable       = true;
            intrackRateResult.DesiredValue = deviations[3] / 1000;
            intrackRateResult.Tolerance    = 0.001;
            IAgVADCResult radialRateResult = dc.Results.GetResultByPaths("InitialState", "RadialRate");

            radialRateResult.Enable       = true;
            radialRateResult.DesiredValue = deviations[4] / 1000;
            radialRateResult.Tolerance    = 0.001;
            IAgVADCResult crosstrackRateResult = dc.Results.GetResultByPaths("InitialState", "CrossTrackRate");

            crosstrackRateResult.Enable       = true;
            crosstrackRateResult.DesiredValue = deviations[5] / 1000;
            crosstrackRateResult.Tolerance    = 0.001;

            /// Propagator ///
            IAgVAMCSPropagate propagate = driver.MainSequence.Insert(AgEVASegmentType.eVASegmentTypePropagate, "ToGround", "-") as IAgVAMCSPropagate;

            ((IAgVAMCSSegment)propagate).Properties.Color = Color.Red;
            //propagate.PropagatorName = "CustomProp";
            propagate.PropagatorName = propName;

            // add an Epoch stopping condition
            IAgVAStoppingConditionCollection propStoppingConditions = propagate.StoppingConditions as IAgVAStoppingConditionCollection;
            IAgVAStoppingConditionElement    epochElement           = propStoppingConditions.Add("Epoch");
            IAgVAStoppingCondition           epoch = (IAgVAStoppingCondition)epochElement.Properties;

            epoch.Trip = ((IAgScenario)root.CurrentScenario).StopTime;
            // add an Altitude stopping condition
            IAgVAStoppingConditionElement altitudeElement = propStoppingConditions.Add("Altitude");
            IAgVAStoppingCondition        altitude        = (IAgVAStoppingCondition)altitudeElement.Properties;

            altitude.Trip = 0;
            // remove the original stopping condition
            propagate.StoppingConditions.Remove("Duration");

            // run the MCS
            driver.RunMCS();
            driver.ClearDWCGraphics();


            // get the stop time
            IAgDataPrvInterval dp          = ((IAgStkObject)sat).DataProviders.GetDataPrvIntervalFromPath("Astrogator MCS Ephemeris Segments") as IAgDataPrvInterval;
            IAgDrResult        result      = dp.Exec(((IAgScenario)root.CurrentScenario).StartTime, ((IAgScenario)root.CurrentScenario).StopTime);
            string             satStopTime = result.DataSets[3].GetValues().GetValue(1).ToString();

            if (satStopTime.Equals((Convert.ToString(((IAgScenario)root.CurrentScenario).StopTime))))
            {
                // the satellite does not decay (it is propagated until the scenario stop time)
                propResults.IsDecayed = false;
            }
            else
            {
                propResults.IsDecayed   = true;
                propResults.ImpactEpoch = satStopTime;
                // remove the millisecond part
                satStopTime = satStopTime.Split('.')[0];

                //ask for LLA data at stop time
                IAgDataPrvTimeVar dpInfo  = ((IAgStkObject)sat).DataProviders.GetDataPrvInfoFromPath("LLA State//Fixed") as IAgDataPrvTimeVar;
                IAgDrResult       resInfo = dpInfo.ExecSingle(satStopTime);
                string            lat     = resInfo.DataSets[1].GetValues().GetValue(0).ToString();
                string            lon     = resInfo.DataSets[2].GetValues().GetValue(0).ToString();
                string            alt     = resInfo.DataSets[3].GetValues().GetValue(0).ToString();
                propResults.ImpactLat = lat;
                propResults.ImpactLon = lon;
                propResults.ImpactAlt = alt;

                // create a target object
                IAgTarget target = root.CurrentScenario.Children.New(AgESTKObjectType.eTarget, "Target" + (runId).ToString().PadLeft(3, '0')) as IAgTarget;
                target.Graphics.Color        = Color.Red;
                target.Graphics.LabelVisible = false;
                IAgPosition pos = target.Position;
                pos.AssignGeodetic(lat, lon, 0);

                // create and display the time event
                IAgCrdnProvider   provider   = root.CurrentScenario.Children["Target" + (runId).ToString().PadLeft(3, '0')].Vgt;
                IAgCrdnEventEpoch eventEpoch = provider.Events.Factory.CreateEventEpoch(runId.ToString().PadLeft(3, '0') + "_Impact", "Impact Epoch") as IAgCrdnEventEpoch;
                eventEpoch.Epoch = satStopTime;
                try { root.ExecuteCommand("Timeline * TimeComponent Add ContentView \"Scenario Availability\" \"Target/Target" + (runId).ToString().PadLeft(3, '0') + " " + runId.ToString().PadLeft(3, '0') + "_Impact Time Instant\""); }
                catch (Exception) { }
                root.ExecuteCommand("Timeline * Refresh");

                // create a unique ephemeris file for each Astrogator run
                DateTime now = DateTime.Now;
                string   satEphemerisPath = Directory.GetCurrentDirectory() + "\\Ephemeris\\Reentry_run_" + (runId).ToString().PadLeft(3, '0') + ".e";
                root.ExecuteCommand("ExportDataFile */Satellite/" + tle.GetSatNumber() + "Astrogator Ephemeris \"" + satEphemerisPath + "\" Type STK CoordSys ICRF CentralBody Earth InterpBoundaries Include");
                propResults.EphemerisFilePath = satEphemerisPath;
                // unload Astrogator satellite
                root.CurrentScenario.Children[tle.GetSatNumber() + "Astrogator"].Unload();

                if (runId == nRuns)
                {
                    // remove the TLE sat
                    // root.CurrentScenario.Children[tle.GetSatNumber()].Unload();
                }
            }

            try
            {
                AGI.Ui.Core.IAgUiWindowsCollection windows = app.Windows;
                foreach (dynamic window in app.Windows)
                {
                    string windowCaption = (string)window.Caption;
                    if (windowCaption.Contains("Setup"))
                    {
                        window.Close();
                    }
                }
            }
            catch (Exception ex)
            {
            }

            return(propResults);
        }
Ejemplo n.º 3
0
        public void set_InitialState(object InitStateObj, string name, double value)
        {
            IAgVAMCSInitialState state = InitStateObj as IAgVAMCSInitialState;

            AgEVAElementType CoordType = state.ElementType;

            if (CoordType == AgEVAElementType.eVAElementTypeKeplerian)
            {
                IAgVAElementKeplerian keplerState = state.Element as IAgVAElementKeplerian;
                if (name == "Apoapsis Altitude")
                {
                    keplerState.ApoapsisAltitudeSize = value;
                }
                else if (name == "Apoapsis Radius")
                {
                    keplerState.ApoapsisRadiusSize = value;
                }
                else if (name == "Eccentricity")
                {
                    keplerState.Eccentricity = value;
                }
                else if (name == "Inclination")
                {
                    keplerState.Inclination = value;
                }
                else if (name == "RAAN")
                {
                    keplerState.RAAN = value;
                }
                else if (name == "True Anomaly")
                {
                    keplerState.TrueAnomaly = value;
                }
                else if (name == "Semi-Major Axis")
                {
                    keplerState.SemiMajorAxis = value;
                }
                else if (name == "Period")
                {
                    keplerState.Period = value;
                }
                else if (name == "Mean Motion")
                {
                    keplerState.MeanMotion = value;
                }
                else if (name == "Arg Of Latitude")
                {
                    keplerState.ArgOfLatitude = value;
                }
                else if (name == "Arg Of Periapsis")
                {
                    keplerState.ArgOfPeriapsis = value;
                }
                else if (name == "Mean Anomaly")
                {
                    keplerState.MeanMotion = value;
                }
                else if (name == "LAN")
                {
                    keplerState.LAN = value;
                }
                else if (name == "Periapsis Altitude")
                {
                    keplerState.PeriapsisAltitudeSize = value;
                }
                else if (name == "Periapsis Radius")
                {
                    keplerState.PeriapsisRadiusSize = value;
                }
            }
            else if (CoordType == AgEVAElementType.eVAElementTypeCartesian)
            {
                IAgVAElementCartesian cartesianState = state.Element as IAgVAElementCartesian;
                if (name == "X")
                {
                    cartesianState.X = value;
                }
                else if (name == "Y")
                {
                    cartesianState.Y = value;
                }
                else if (name == "Z")
                {
                    cartesianState.Z = value;
                }
                else if (name == "Vx")
                {
                    cartesianState.Vx = value;
                }
                else if (name == "Vy")
                {
                    cartesianState.Vy = value;
                }
                else if (name == "Vz")
                {
                    cartesianState.Vz = value;
                }
            }
        }