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Viking Satellite Orbit Determination
Journal of Guidance and Control, 1977During the summer of 1976, the two Viking spacecraft, each consisting of an orbiter-lander combination, were inserted into orbit about Mars. The paper describes the experiences of the Viking Satellite Orbit Determination Team in determining Mars centered ephemerides of the orbiters and positions of the landers from the two-way Doppler and range data ...
C. HILDEBRAND +6 more
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Orbit determination for a Jupiter orbiter tour of the Galilean satellites
Mechanics and Control of Flight Conference, 1974Current NASA planning envisions an ambitious Jupiter tour mission which will arrive at the planet in the year, 1984. The objectives of this mission are to broaden our knowledge of the outer solar system and in particular to extend our understanding of the physical processes at work in the Jupiter and Galilean satellite environment.
R. K. Russell, J. Ellis
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Orbit and position determination for Mars orbiters and landers
Journal of Spacecraft and Rockets, 1970Statistical orbit and position determination for Mars orbiters and landers based on Viking 1973 mission requirements, discussing tracking ...
E. H. TOLSON +2 more
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Orbit Determination: Preliminary Orbits
1985Having at our disposal at the Observatory some photographic plates of artificial satellites and, also, facilities to get plates of natural celestial bodies of the solar system, by the installation of a new optical telescope, we had need to write a computer program for a fast determination of preliminary orbits, both geocentric and heliocentric, by ...
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Simulation of precise orbit determination of lunar orbiters
Chinese Astronomy and Astrophysics, 2005Abstract Based on the ongoing Chinese lunar exploration mission, i.e. the “Chang'e 1” project, precise orbit determination of lunar orbiters is analyzed for the actual geographical distribution and observational accuracy of the Chinese united S-band (USB) observation and control network as well as the very long baseline interferometry (VLBI) tracking
Xiao-gong Hu, Cheng Huang, Yong Huang
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On the determination of double star orbits
Astrophysics and Space Science, 1985It is proposed to improve the convergence of the determination of the elements of the orbits of visual binaries by using not only first, but second-order derivatives in the development of the appropriate equations of condition. Also, some improvements of the Kowalsky-Seeliger method [cf. \textit{W. D.
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AIAA/AAS Astrodynamics Specialist Conference and Exhibit, 2008
In 2006, an updated version of SGP4 was presented for general use. The propagation routine relies on Two-Line Element (TLE) set data provided by the U.S. Government for several decades. Many independent organizations have access to observations, or ephemerides developed with other programs. Because the TLE is a compact means to obtain modestly accurate
David Vallado, Paul Crawford
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In 2006, an updated version of SGP4 was presented for general use. The propagation routine relies on Two-Line Element (TLE) set data provided by the U.S. Government for several decades. Many independent organizations have access to observations, or ephemerides developed with other programs. Because the TLE is a compact means to obtain modestly accurate
David Vallado, Paul Crawford
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Probabilistic Initial Orbit Determination [PDF]
, 2016 Future space surveillance requires dealing with uncertainties directly in the initial orbit determination phase. We propose an approach based on Taylor differential algebra to both solve the initial orbit determination (IOD) problem and to map uncertainties from the observables space into the orbital elements space. This is achieved by approximating in
ARMELLIN, ROBERTO, DI LIZIA, PIERLUIGI
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Determination of orbits with Torun Orbit Processor system
Advances in Space Research, 1995Abstract The Torun Orbit Processor system (TOP) is a multipurpose system designed to provide the research requirements of the various orbital problems for artificial satellites. The analysis of mathematical model for the TOP system began in 1991 and coding for the IBM PC and Sun SparcStation 10 computers was completed in 1993.
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