On orbit determination accuracy of space-VLBI satellites
نویسندگان
چکیده
منابع مشابه
Precise Orbit Determination for Low Earth Orbit Satellites
The precise orbit determination problem is to accurately determine the position and velocity vectors of an orbiting satellite. In this paper we review the general contents of the orbit determination process, with particular emphasis on Low Earth Orbit (LEO) satellites. The different orbit determination approaches and the different force models contained within are briefly discussed. The two mai...
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The statistics of estimated errors when conducting the orbit determination of a tethered satellite system (TSS) by only using Doppler frequencies is shown. TSS consists of two satellites connected each other by a tether. The center of mass (CM) moves like a single satellite, so this system can be utilized in case of a single satellite as well as TSS. This is considered as a low-cost orbit deter...
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Australia is presently investigating the design of an earth observation Synthetic Aperture Radar (SAR) satellite mission, known as “Garada”, optimised to collect SAR images over Australia’s huge land mass for a variety of applications using several small satellites flying in formation. The Australian Centre for Space Engineering Research (ACSER) is funded by a grant from the Australian Space Re...
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Successful satellite operations often depend on the ability to precisely determine the satellite’s position throughout it’s operational lifetime. Often, simplified models are used to reduce the computational complexity when producing an orbit determination solution. One example is the use of lower order gravitational terms when computing the state transition matrix. The US Naval Research Labora...
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Limiting factors for the precise orbit determination POD of low-earth orbit LEO satellite using dual-frequency GPS are nowadays mainly encountered with the in-flight phase error modeling. The phase error is modeled as a systematic and a random component each depending on the direction of GPS signal reception. The systematic part and standard deviation of random part in phase error model are, re...
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ژورنال
عنوان ژورنال: Advances in Space Research
سال: 1990
ISSN: 0273-1177
DOI: 10.1016/0273-1177(90)90363-5