KFU. Card publication. Physical Libration of the Moon: An Extended Problem

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FEDERAL UNIVERSITY

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PHYSICAL LIBRATION OF THE MOON: AN EXTENDED PROBLEM

Form of presentation

Articles in international journals and collections

Year of publication

2020

Язык

английский

Authors, employees of KFU

Andreev Aleksey Olegovich, author

Zagidullin Artur Aleksandrovich, author

Nefedev Yuriy Anatolevich, author

Petrova Natalya Konstantinovna, author

Usanin Vladimir Sergeevich, author

Other authors

Gudkova Tamara Vasilevna, author

Bibliographic description in the original language

Zagidullin A.A., Usanin V.S., Petrova N.K., Nefedyev Yu.A., Andreev A.O., Gudkova T.V. Physical Libration of the Moon: An Extended Problem // Astronomy Reports. – 2020. – V. 64, No 12. – P. 1093–1106.

Annotation

The work is devoted to the study of the physical libration of the Moon. Interest in the traditional topic related to the rotation of the Moon is stirred up by the activity of many countries regarding the development of circumlunar space. Scientifically, the main agenda is to consider the viscosity of the core. At this stage of the theory development, such effects as indirect and direct perturbations from the planets were considered, the 4th order harmonic was included in the gravitational potential of the Moon, and the mean tidal potential was also considered. The inclusion of the described effects in the equations of the Moon's rotation led to a significant improvement in the solution when compared with the corresponding data from the DE421 theory, although the residual differences still remain greater than the 1 ms accuracy required by the theory. The influence of the direct effect from the planets was milliseconds. The influence of the 4th harmonic manifested itself as a systematic shift of the order of 0.85'' in the residual differences in libration in longitude. Considering the tide made it possible to reduce the residual differences in latitude by almost an order of magnitude. In this case, the main factor that reduces the residual differences is changes in the second-order Stokes coefficients. The calculations were carried out using the DE421 ephemeris built at NASA Jet Propulsion Laboratory.

Keywords

The name of the journal

ASTRONOMY REPORTS

URL

https://link.springer.com/article/10.1134/S1063772921010066

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=248485&p_lang=2

Resource files

File name	Size (MB)	Format
F_Zagidullin2020_Article_PhysicalLibrationOfTheMoonAnEx.pdf	1,40	pdf	show / download

Full metadata record

Field DC	Value	Language
dc.contributor.author	Andreev Aleksey Olegovich	ru_RU
dc.contributor.author	Zagidullin Artur Aleksandrovich	ru_RU
dc.contributor.author	Nefedev Yuriy Anatolevich	ru_RU
dc.contributor.author	Petrova Natalya Konstantinovna	ru_RU
dc.contributor.author	Usanin Vladimir Sergeevich	ru_RU
dc.contributor.author	Gudkova Tamara Vasilevna	ru_RU
dc.date.accessioned	2020-01-01T00:00:00Z	ru_RU
dc.date.available	2020-01-01T00:00:00Z	ru_RU
dc.date.issued	2020	ru_RU
dc.identifier.citation	Zagidullin A.A., Usanin V.S., Petrova N.K., Nefedyev Yu.A., Andreev A.O., Gudkova T.V. Physical Libration of the Moon: An Extended Problem // Astronomy Reports. – 2020. – V. 64, No 12. – P. 1093–1106.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=248485&p_lang=2	ru_RU
dc.description.abstract	ASTRONOMY REPORTS	ru_RU
dc.description.abstract	The work is devoted to the study of the physical libration of the Moon. Interest in the traditional topic related to the rotation of the Moon is stirred up by the activity of many countries regarding the development of circumlunar space. Scientifically, the main agenda is to consider the viscosity of the core. At this stage of the theory development, such effects as indirect and direct perturbations from the planets were considered, the 4th order harmonic was included in the gravitational potential of the Moon, and the mean tidal potential was also considered. The inclusion of the described effects in the equations of the Moon's rotation led to a significant improvement in the solution when compared with the corresponding data from the DE421 theory, although the residual differences still remain greater than the 1 ms accuracy required by the theory. The influence of the direct effect from the planets was milliseconds. The influence of the 4th harmonic manifested itself as a systematic shift of the order of 0.85'' in the residual differences in libration in longitude. Considering the tide made it possible to reduce the residual differences in latitude by almost an order of magnitude. In this case, the main factor that reduces the residual differences is changes in the second-order Stokes coefficients. The calculations were carried out using the DE421 ephemeris built at NASA Jet Propulsion Laboratory.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject		ru_RU
dc.title	Physical Libration of the Moon: An Extended Problem	ru_RU
dc.type	Articles in international journals and collections	ru_RU