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Transactions of IAA RAS, issue 20, 330–335 (2009)

Keywords: радиоинтерферометрия со сверхдлинными базами, проект Радиоастрон, методы высокотчного определения орбиты, космический аппарат "Спектр-Р", высокоапогейная орбита, тонкие структуры радиоисточников, орбитальные характеристики КРТ, прецизионные лазерные измерения

### Abstract

Space radio-telescope (SRT) will be launched on near Earth orbit, having perigee close to the Earth and near-apogee distance ~ 330,000 km. SRT will have an antenna with diameter 10 meters. The orbital parameters are chosen to maximize evolution of the normal to the orbit plane (?-right ascension and i-declination) using the gravitational fields of the Moon and the Sun. The name of the spacecraft is . SRT together with the stations on the Earth surface will be an interferometer with a very large base. To determine current orbital parameters of the SRT tracking stations (TS) and command stations (CS) will be used. To provide high-stability frequency generation an on-board H-maser will be installed. CS will measure range and range rate, and the TS will measure only range rate of the SRT. The laser retroreflectors which will be used for the SRT ranging will increase precision of laser measurements. This paper deals with the questions of the SRT orbit determination.

### Citation

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BibTeX
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E. L. Akim, R. M. Bebenin, Yu. N. Ponomarev, V. A. Stepanyans, A. G. Tuchin . Navigation of the SRT in "Radioastron" Mission // Transactions of IAA RAS. — 2009. — Issue 20. — P. 330–335. @article{akim2009, abstract = {Space radio-telescope (SRT) will be launched on near Earth orbit, having perigee close to the Earth and near-apogee distance ~ 330,000 km. SRT will have an antenna with diameter 10 meters. The orbital parameters are chosen to maximize evolution of the normal to the orbit plane (?-right ascension and i-declination) using the gravitational fields of the Moon and the Sun. The name of the spacecraft is . SRT together with the stations on the Earth surface will be an interferometer with a very large base. To determine current orbital parameters of the SRT tracking stations (TS) and command stations (CS) will be used. To provide high-stability frequency generation an on-board H-maser will be installed. CS will measure range and range rate, and the TS will measure only range rate of the SRT. The laser retroreflectors which will be used for the SRT ranging will increase precision of laser measurements. This paper deals with the questions of the SRT orbit determination.}, author = {E.~L. Akim and R.~M. Bebenin and Yu.~N. Ponomarev and V.~A. Stepanyans and A.~G. Tuchin}, issue = {20}, journal = {Transactions of IAA RAS}, keyword = {радиоинтерферометрия со сверхдлинными базами, проект Радиоастрон, методы высокотчного определения орбиты, космический аппарат "Спектр-Р", высокоапогейная орбита, тонкие структуры радиоисточников, орбитальные характеристики КРТ, прецизионные лазерные измерения}, pages = {330--335}, title = {Navigation of the SRT in "Radioastron" Mission}, url = {http://iaaras.ru/en/library/paper/647/}, year = {2009} } TY - JOUR TI - Navigation of the SRT in "Radioastron" Mission AU - Akim, E. L. AU - Bebenin, R. M. AU - Ponomarev, Yu. N. AU - Stepanyans, V. A. AU - Tuchin, A. G. PY - 2009 T2 - Transactions of IAA RAS IS - 20 SP - 330 AB - Space radio-telescope (SRT) will be launched on near Earth orbit, having perigee close to the Earth and near-apogee distance ~ 330,000 km. SRT will have an antenna with diameter 10 meters. The orbital parameters are chosen to maximize evolution of the normal to the orbit plane (?-right ascension and i-declination) using the gravitational fields of the Moon and the Sun. The name of the spacecraft is . SRT together with the stations on the Earth surface will be an interferometer with a very large base. To determine current orbital parameters of the SRT tracking stations (TS) and command stations (CS) will be used. To provide high-stability frequency generation an on-board H-maser will be installed. CS will measure range and range rate, and the TS will measure only range rate of the SRT. The laser retroreflectors which will be used for the SRT ranging will increase precision of laser measurements. This paper deals with the questions of the SRT orbit determination. UR - http://iaaras.ru/en/library/paper/647/ ER -