Satellite guidance and orbit control often use mean elements as inputs. These instruments are often found in product testing and quality assurance labs, to ensure that exacting production standards are being met. Introduction this paper presents the implementation and validation of the draper semianalytical satellite theory dsst model as an orbit propagator into the free orekit library. Summaries of semi analytical satellite theory and sequential filtexing are presented first. This precession theory is based on capitaine et al. Pdf current development of the draper semianalytical. In the middle of 70s, paul cefola and his colleagues cefola 1972 4, 1976 5 proposed the draper semi analytical satellite theory dsst based on the equinoctial elements. The orekit library for space flight dynamics has been published under the opensource apache license v2.
Dsst is a semi analytical theory expressed in a nonsingular equinoctial elements set. The goal of the draper semi analytical satellite theory dsst standalone orbit propagator is to provide the same algorithms as in the gtds orbit determination system implementation of the dsst. Mean orbital elements estimation for autonomous satellite. The assessment of the semianalytical method in the longterm. Application of computational intelligence in order to develop. The draper semianalytical satellite theory dsst, developed by paul cefola and his colleagues, is one of them.
Gordon nasagsfc brouwerl derived a firstorder perturbation solution expressing the secular, short and long periodic variations in the motion of an artificial satellite about an oblate planet. Attributes a ecting the accuracy of a batch least square. Proceedings of the 23rd aasaiaa spaceflight mechanics meeting. An elegant lambert algorithm journal of guidance, control. Draper semianalytical satellite theory dsst is a precision mean element satellite theory. For the iau76fk5 theory, the bias is explicit, timevarying, and is included in the of the corrected nutation theory. Allocation of dsst in the new implementation of astrody juan. A mean elements orbit propagator program for highly. It was developed at the draper laboratory and the computer sciences corporation by a team led by paul j. Semi and micro analytical balances micro balances are used in a wide array of applications where small levels in weight variation can make a big difference. The short periodic perturbations due to the geopotential of all orbital elements are evaluated. Verification of the orekit java implementation of the draper semi analytical satellite theory pj cefola, b bentley, l maisonobe, p parraud, r dicostanzo, z folcik aasaiaa space flight mechanics meeting, 20.
The draper semianalytic satellite theory dsst was one of the first propagators employed in ssa, and it includes all the principal perturbations affecting earth. For this purpose, the draper semianalytical satellite theory dsst which makes use of the generalized method for averaging, is examined for its best possible fit with numerically generated orbits and also for its computational loads. Amongst them, the draper semianalytical satellite theory dsst stands out, with its extensive treatment of perturbations, its exibility and also its maturity. Pdf application of semianalytical satellite theory. Research on the transient response of fgm structures have also been carried out wang et al. Orekit in neosat fds mean elements propagation with dsst dsst draper semianalytical satellite theory since orekit 7. As an alternative to established numerical and analytical methods, we investigate the accuracy and computational load of the draper semianalytical satellite. The high precision mean element semianalytic satellite theory developed at draper laboratory is more efficient than conventional numerical methods and.
Reasons for selection and a brief description of these theories are provided in the theory section. Pdf validation of the draper semianalytical satellite. The dsst is unique among analytical and semi analytical satellite theories due to the scope of the included force models. Extension of the draper semi analytical satellite theory dsst in studing the stability of spacecraft orbits. A systematic approach to stationkeeping of constellations. Review of the draper semianalytical satellite theory dsst issfd. May 15, 2018 in this paper, the orbit acquisition and maintenance strategies for the repeatgroundtrack orbit are investigated to maintain the ground track of the satellite within a certain range. Draper semianalytical satellite theory, orekit, validation 1. A hybrid perturbation theory combines an integrating technique, general perturbation theory or special perturbation theory or semianalytical method, with a forecasting technique, statistical time series model or computational intelligence method. A semi analytical model is constructed for single and multijunction solar cells. An analytic firstorder atmospheric drag theory is developed using lagranges planetary equations. Two kinds of orbital dynamics models are introduced to calculate the onorbit state of satellite. Dsst is a mean element orbit propagator based upon the generalized method of averaging. Mission feasibility studies mission analysis lifetime and geometry constraints tracking station acquisition schedules dynamic modeling required for differential correction procedures.
We present a new approach in astrodynamics and celestial mechanics fields, called hybrid perturbation theory. Development of specific application of the stability theory in the study of turbulent atmospheric phenomena. Pdf current development of the draper semianalytical satellite. And to construct a secondorder analytical theory, the equations of motion become very complicated to be.
Application of semianalytical satellite theory orbit propagator to orbit determination for space object catalog maintenance article pdf available in advances in space research 5710 march. Extension of the draper semianalytical satellite theory dsst in studing the stability of spacecraft orbits. This precession theory should be used with the nutation model of iau 2000a for best accuracies. Dsst was created to be a low cost, longterm orbit propagator for the following applications. Investigating the suitability of analytical and semi. Draper semianalytical satellite theory dsst dsst was created to be a low cost, longterm orbit propagator for the following applications. Sdp4 and kamels theory, along with the semianalytical technique which includes the draper semianalytical satellite theory dsst. Ground temperature estimations using simplified analytical. Pdf early development of the draper semianalytical satellite theory dsst was motivated by the goal of a nonsingular, semianalytical. Sst represents the orbital state of a satellite with an equinoctial element set a1. Different algorithms based on brouwers theory brouwer, 1959 still serve for this task, and the generation of the socalled twoline elements is based on them hoot and roehrich 1980. The dss t model, widely used and validated, is characterized. Programme for researchdevelopmentinnovation for space.
On lamberts problem and the elliptic time of flight equation. An economical algorithm is presented for predicting the position of a satellite perturbed by drag and zonal harmonics j sub 2 through j sub 4. Semianalytical satellite theory should not be used under these circumstances. Simplicity being of the essence, drag is modeled as a secular decay rate in the semi axis retarded motion. Development of specific application of the stability theory in. Pdf semianalytical propagation techniques are of great interest, as they aim to combine the accuracy of numerical techniques with the speed. The orbital dynamics of an artificial satellite in the earths atmosphere is considered.
A semianalytical model for semiconductor solar cells. Introduction this paper presents the implementation and validation of the draper semi analytical satellite theory dsst model as an orbit propagator into the free orekit library. For information, youll find on the same address above the rugged addon. The implementation of the draper semianalytical satellite theory dsst into the free orekit library offers to the astrodynamics comm unity one of the most mat ure and versatile sem i analytical. One is the orbital propagation model which is of high fidelity and can approximately express the forces acting on. The draper semi analytical satellite theory dsst, developed by paul cefola and his colleagues, is one of them. May 23, 2012 on lamberts problem and the elliptic time of flight equation.
Verification of the java orekit implementation of the draper semi analytical satellite theory dsst is discussed. In 2006 the new iau 2006 precession theory was adopted hilton, 2006. More sophisticated theories were later implemented, as draper semianalytic satellite theory dsst. The draper semi analytical satellite theory dsst is a precision mean element satellite theory. Rugged is a sensortoterrain mapping tool which takes into account digital elevation models dem in its line of sight computation. New orbit generators based on semianalytic satellite theory. The draper semi analytical satellite theory dsst 2, 3 is the first in a list of applications which has been included as part of this ssa project. The goal of the draper semianalytical satellite theory dsst standalone orbit propagator is to provide the same algorithms as in the gtds orbit determination system implementation of the dsst. Computational time and rms errors are used as comparison metrics. For the purpose the wellknown flavors of simplified general perturbation theories for deep spacesdp4sdp8, kamels theory a dedicated geosynchronous satellite perturbation theory formulated in equinoctial elements, and draper semianalytical satellite theory which makes use of generalized method for averaging, are examined for. Analytical and semianalytical treatment of the satellite.
The recursive tesseral model is drawn from the draper semianalytical satellite theory dsst and provides the shortperiod variations. Draper semi analytical satellite theory, orekit, validation 1. Akbari alashti and khorsand 2012 performed 3d thermoelastic analysis of fgm cylindrical shells with piezoelectric layers. Prediction accuracies ofdraper semi analytical satellite theory in leo, meo andheoregimefor space object catalogue maintenance aas 14319 srinivas j. Pdf validation of the draper semianalytical satellite theory. The draper semianalytic satellite theory dsst was one of the rst propagators employed in ssa, and it includes all the principal perturbations a ecting earth satellite orbits gravitational perturbations from the earths zonal and tesseral harmonics, the sun, and the moon, and. Verification of draper semianalytical satellite theory dsst. And it has been applied to an orbit propagator called dsst standalone cefola et al. The new model is implemented as an option in the draper semianalytic satellite theory dsst orbit. A simple semianalytical inversion method advances in space research, vol.
Both hande and salt adopted aspects of the comprehensive semi analytical satellite theory whose development started at the computer sciences corporation in silver springs, md and continued at the draper laboratory. Dsst is a semi analytical theory expressed in nonsingular equinoctial elements. This model incorporates the key performance aspects of practical devices, including nonradiative recombination, photon recycling within a given junction, spontaneous emission coupling between junctions, and nonsteplike absorptance and emittance with belowbandgap tail absorption. To test the accuracies of the selected propagators, trajectories are compared with a numerical truth trajectory. Advances in the astronautical sciences spaceflight mechanics 2014, 152 319, seiten 114. Application of semianalytical satellite theory orbit. The dsst has the advantage to cover an extensive range of perturbations. Whereas traditional missions can use groundstationbased calculation of mean elements, this is not possible in autonomous satellites, which are required to perform onboard estimation of the mean elements. Application of semianalytical satellite theory orbit propagator to. Semianalytical acquisition algorithm for repeatgroundtrack. What are the choices today for orbital mechanics simulation. An analytical approach to calculating the coverage of a constellation was developed.
276 1274 63 1079 1577 1318 1181 690 1519 1203 565 676 1346 600 1542 1470 1405 62 1026 1436 1125 1607 939 1551 1363 184 1312 1148 702 1397 698 1348 1460 362 1238 790 247 102