Gnss geo satellites precise orbit determination based on carrier phase and slr observations baoqi sun1,2, hang su1,2, zhe zhang1,2, yao kong1,2,3, xuhai yang1,2 1. A method of using newtons highresolution differential formula and polynomial fitting for modeling the thrust force of a maneuvered geo satellite is developed. Finally, shortarc orbit determination and prediction are analyzed in relation to the requirements of rapid orbit recovery after geo satellite maneuvers. Aug 29, 2018 geostationary earth orbit geo korea multipurpose satellite kompsat2b gk2b is a korean geostationary earth orbit geo satellite that is scheduled to be launched in 2020 for meteorological and ocean monitoring. We assume that all three position vectors are coplanar, because if they are not it is not a proper orbit and these equations will not yield proper results. Orbit determination and prediction of geo satellite of beidou. Correct modeling of the space environment, including radiative forces, is an important aspect of space situational awareness for geostationary geo spacecraft.
Object correlation and orbit determination for geostationary satellites using optical measurements. Integrated design of autonomous orbit determination and. Biography j d kronman is a senior systems engineer for the defense systems division of trw, inc. Orbit determination accuracy improvement for geostationary. Optimized strategies for precise orbit determination of low. Gnss geo satellites precise orbit determination based on. Experience using gps for orbit determination of a geosynchronous satellite j. Heo highly elliptical orbit these satellites have almost a distance of 36,000 km to the earth. The purpose of orbit determination in a satellite navigation system is the derivation of. That is about half of the fundamental problem of celestial mechanics. Orbit determination and prediction for beidou geo satellites. Formation flying and position determination for a spacebased. The observational determination of orbits in the last chapter we saw how to find the position on the sky of a object given the parameters that describe the orbit of the object. To improve the accuracy of the orbit determination for geo satellites, a series of theoretical research and experiments has been performed by researchers.
National time service center, chinese academy of sciences. Pdf periodical orbit maneuver makes a serious problem for navigation users to get correct geostationary geo orbit information in realtime. Orbit determination of korean geo satellite using single. Geo orbit determination via covariance analysis with a known. For the two experiments, the ure of orbit determination during repositioning maneuver is smaller than the ure of short arc orbit determination by 0.
A practical algorithm is proposed for determining the orbit of a geostationary orbit geo satellite using singleepoch measurements. Positioning system receiver gpsr at a geostationary orbit geo. Therefore, in order to improve the orbits of the spacecraft in question, and thus improve the geolocation solution, improvements in solar. Pdf on sep 23, 20, xiucong sun and others published geo orbit determination using beidou system find, read and cite all the research you need on researchgate. The inorbit control of a spacecraft requires knowledge of its position in space.
Pdf orbit determination of geostationary satellite during. Extended kalman filter ekf was used as orbit determination algorithm for geo and gso orbits in the current study. The characteristics of the transfer ellipse and the total. Geoinformation article initial results of the precise orbit determination for the newgeneration beidou satellites beidou3 based on the igmas network bingfeng tan 1,2, yunbin yuan 1, mingyue wen 3, yafei ning 1,2 and xifeng liu 1,2 1 state key laboratory of geodesy and earths dynamics, institute of geodesy and geophysics. All radio and tv, whether satellite etc, are launched in this orbit. Pdf a new precise orbit determination pod strategy based on the combination of satellite laser ranging slr and cband transfer ranging. Orbit determination using dual ranging method of geo communication satellites at different slots, practical results have been studied taking classical flight proven results of single station angular measurement as reference. Application to geomagnetic storm times, manuscript in preparation for journal of geophysical research, 2005, hereinafter referred to as chen et al. Satellite orbit and ephemeris determination using inter satellite links. The orbit determination algorithm can be used to help the orbit prediction algorithm to improve the accuracy of the predicted state of the satellite. Sep 01, 2011 third, combined orbit determination for low earth orbit satellite and high earth orbit satellite visser and ambrosius, 1997, it can overcome the geometric limitations of tracking nets. Figure 648 meo propagation error with 12 hours smoothing using isls.
This study is intended to improve orbit determination accuracy for 3axis stabilized geo spacecraft via an improved radiative force model. However, separating the orbit determination errors from the clock errors is difficult, and geo range errors tend to be much larger than gps range errors. Integrated design of autonomous orbit determination and orbit. Precise orbit determination for geostationary satellites with multiple tracking techniques article pdf available in chinese science bulletin 558. With the aid of bds twoway frequency and time transfer between the geos and beidou time bdt, that is maintained at the master control station, we propose a new orbit determination strategy, namely threestep approach of the multisatellite precise orbit determination mpod. In order to improve the autonomy of a maneuvered geo satellite which is a member of a navigation satellite system, an integrated design method of autonomous orbit determination and autonomous control was proposed. Formation flying and position determination for a spacebased interferometer in geo graveyard orbit. A method to determine beidou geoigso orbital maneuver time. This paper proposes a technique for making the clock state of a bentpipe geo a known quantity, then considers the effect on the derived geo range through a simulation of the orbit. Evaluation of station location for orbit determination of. A new strategy of precise orbit determination pod for geo geostationary earth orbit satellite using satre satellite time and ranging equipment is presented. Orbit determination of korean geo satellite using single slr. Evaluation of cband precise orbit determination of.
The journal also publishes selected technical notes and survey articles, as well as papers of exceptional quality drawn from the institutes conference proceedings. Evaluation of cband precise orbit determination of geostationary earth orbit satellites based on the chinese area positioning system. National time service center, chinese academy of s. The 2003 geo observation campaign from collepardo and mallorca. Demonstration of precise orbit determination of geo. Third, combined orbit determination for low earth orbit satellite and high earth orbit satellite visser and ambrosius, 1997, it can overcome the geometric limitations of tracking nets. Research article integrated design of autonomous orbit determination and orbit control for geo satellite based on neural network youtao gao,1 zhicheng you,1 and bo xu 2 1school of astronautics, nanjing university of aeronautics and astronautics, nanjing 210016, china. If we have three observations, with each observation representing a position vector, we can determine the orbit of the satellite. Pdf precise orbit determination for geostationary satellites with. Time geo orbit determination using topstar 3000 gps.
However, they bring great challenges to orbit determination, especially for geo satellites with the demand of geostationary orbit. Benefits of a geosynchronous orbit geo observation point. Introduction the increasing number of space debris objects, together with the risk associated for the active space missions, has as main consequence an increase of the workingload for the infrastructures dedicated to the space debris cataloging and orbit maintenance. Improvement of orbit determination for geostationary. A neural network state observer was designed to estimate the state of the geo satellite, with only the intersatellite ranging information as observations.
The gpsr is onboard the newly launched geostationary operational environmental satellite goesr. A practical algorithm is proposed for determining the orbit of a geostationary orbit geo satellite using singleepoch measurements from a global positioning system gps receiver under the sparse visibility of the gps satellites. Geostationary earth orbit geokorea multipurpose satellite kompsat2b gk2b is a korean geostationary earth orbit geo satellite that is scheduled to be launched in 2020 for meteorological and ocean monitoring. Given at least three observations of a solar system body, his method consists of two steps. For geostationary spacecraft the position is required relative to earthcentred axis. It is possible to cover almost all parts of the earth with just 3 geo satellites. Geosynchronous orbit determination using space surveillance. Combined earth star sensor for attitude and orbit determination of.
Geo geo stationary earth orbit meo medium earth orbit leo low earth orbit and. A twoway adaptive kalman filter is proposed by combining a twoway filter with an adaptive filter for orbit determination of a maneuvered geo satellite. The experiment results indicate that orbit of geo satellite during repositioning maneuver can be determined with high precision. A geostationary equatorial orbit geo is a circular geosynchronous orbit in the plane of the earths equator with a radius of approximately 42,164 km 26,199 mi measured from the center of the earth 156 a satellite in such an orbit is at an altitude of approximately 35,786 km 22,236 mi above mean sea level. Astrodynamicsorbit determination wikibooks, open books for. Goesr is the first of four next generation geo weather satellites for noaa, now in orbit goesr is formally identified as goes16.
Benefits of a geosynchronous orbit geo observation point for orbit determination ray byrne, michael griesmeyer, ron schmidt, jeff shaddix, and dave bodette sandia national laboratories abstract determining orbits of unknown objects is a fundamental space situational awareness activity. Geostationary orbit determination using satre request pdf. Initial results of the precise orbit determination for the. The principle of statistical orbital determination is implemented in the data processing, with the adopted astronomical constants, reference system, and dynamical and measurement models. Since 27 december 2012, geo and igso satellites have played an important role in regional bds applications across the asiapaci. It transmitted the first television signal to cross the pacific ocean when it relayed the 1964 summer olympics from tokyo, japan to viewers in the united states 8. Navigator also includes a realtime implementation of gsfcs geons orbit determination software geons sequentially processes sparsely available pseudorange measurements in an extended. Orbit determination of korean geo satellite using single slr sensor article pdf available in sensors 189.
Navigation is a quarterly journal published by the institute of navigation. A geostationary orbit, also referred to as a geosynchronous equatorial orbit geo, is a circular geosynchronous orbit 35,786 kilometres 22,236 miles above earths equator and following the direction of earths rotation. Accurate orbit determination for geostationary spacecraft poses particular problems for the very same reason that these orbits are used, namely the geometry of the. Multisatellite determination of the relativistic electron. Coarse initial orbit determination for a geostationary. Gauss determined an orbit with piazzis observations. Orbit determination methods ceres was recovered in 1802 by h. Precise orbit determination pod using cband pseudorange observation of geo satellite 201a in july 2012 has been conducted.
Oliver montenbruck gsoc had the purpose to provide an overview and some pointers to more detailed. Object correlation and orbit determination for geostationary. The residual root mean square rms of each site and pod are analysed with orbit difference over overlaps of adjacent orbit arcs. Geostationary orbit determination using satre sciencedirect. Interferometric orbit determination for geostationary satellites. Orbit determination, geometric singularity, bias estimation, single station tracking, satellite control. Investigation on geo satellite orbit determination based on. Key laboratory of precision navigation, positioning and timing technology, chinese academy of sciences. A communication satellite was carried by the space shuttle into low earth orbit leo at an altitude of 322 km and is to be transferred to a geostationary orbit geo at 35, 860 km using a hohmann transfer. The tans vector is a 6channe1, l, ca code gps receiver6, which has been used for real time orbit and attitude determination applications in leo. Nominal orbit parameters for ao40 i eccentricitv i 0. Pdf orbit determination of korean geo satellite using. Orbit determination in geo using gps or galileo an interview with european and german control center navigation experts prof.
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