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## Expected Impact of the Lunar Lander VLBI Observations on the Lunar Ephemeris Accuracy

Труды ИПА РАН, вып. 40, 16–21 (2017)

Ключевые слова: Lunar lander VLBI observations, Lunar ephemeris, LLR observations

### Аннотация

The modern Lunar Ephemerides DE (USA), INPOP (France), EPM-ERA (Russia) have been obtained through the comparison of dynamical models of the Moon orbital and rotational motion with modern highly precise lunar laser observations (LLR) from 1969 to the present time. The main purpose of this paper is to evaluate the impact of adding new types of observations on the accuracy of lunar ephemerides. These types are VLBI and radio ranging observations of a lunar lander equipped with a transponder like the one in the Chinese space project Chang’E-3 with the Yutu rover placed at the Moon’s surface [1]. The evaluation was made through the mathematical simulation method for various radio telescopes networks and measurement accuracies. Mathematical models were created by the ERA system developed in the IAA RAS [2]. The results show that VLBI observations processing together with LLR can considerably improve the accuracy of some lunar parameters.

### Цитирование

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M. V. Vasilyev, N. V. Shuygina, E. I. Yagudina. Expected Impact of the Lunar Lander VLBI Observations on the Lunar Ephemeris Accuracy // Труды ИПА РАН. — 2017. — Вып. 40. — С. 16–21. @article{vasilyev2017, abstract = {The modern Lunar Ephemerides DE (USA), INPOP (France), EPM-ERA (Russia) have been obtained through the comparison of dynamical models of the Moon orbital and rotational motion with modern highly precise lunar laser observations (LLR) from 1969 to the present time. The main purpose of this paper is to evaluate the impact of adding new types of observations on the accuracy of lunar ephemerides. These types are VLBI and radio ranging observations of a lunar lander equipped with a transponder like the one in the Chinese space project Chang’E-3 with the Yutu rover placed at the Moon’s surface [1]. The evaluation was made through the mathematical simulation method for various radio telescopes networks and measurement accuracies. Mathematical models were created by the ERA system developed in the IAA RAS [2]. The results show that VLBI observations processing together with LLR can considerably improve the accuracy of some lunar parameters.}, author = {M.~V. Vasilyev and N.~V. Shuygina and E.~I. Yagudina}, issue = {40}, journal = {Труды ИПА РАН}, keyword = {Lunar lander VLBI observations, Lunar ephemeris, LLR observations}, pages = {16--21}, title = {Expected Impact of the Lunar Lander VLBI Observations on the Lunar Ephemeris Accuracy}, url = {http://iaaras.ru/library/paper/1672/}, year = {2017} } TY - JOUR TI - Expected Impact of the Lunar Lander VLBI Observations on the Lunar Ephemeris Accuracy AU - Vasilyev, M. V. AU - Shuygina, N. V. AU - Yagudina, E. I. PY - 2017 T2 - Труды ИПА РАН IS - 40 SP - 16 AB - The modern Lunar Ephemerides DE (USA), INPOP (France), EPM-ERA (Russia) have been obtained through the comparison of dynamical models of the Moon orbital and rotational motion with modern highly precise lunar laser observations (LLR) from 1969 to the present time. The main purpose of this paper is to evaluate the impact of adding new types of observations on the accuracy of lunar ephemerides. These types are VLBI and radio ranging observations of a lunar lander equipped with a transponder like the one in the Chinese space project Chang’E-3 with the Yutu rover placed at the Moon’s surface [1]. The evaluation was made through the mathematical simulation method for various radio telescopes networks and measurement accuracies. Mathematical models were created by the ERA system developed in the IAA RAS [2]. The results show that VLBI observations processing together with LLR can considerably improve the accuracy of some lunar parameters. UR - http://iaaras.ru/library/paper/1672/ ER -