A&A 416, 1187-1192 (2004)
Analytical theory of the motion of Phobos: A comparison with numerical integrationP. Waz
Torun Centre for Astronomy of the Nicolaus Copernicus University, Gagarina 11, 87-100 Torun, Poland
(Received 30 August 2002 / Accepted 25 November 2003 )
A new theory of the motion of Phobos - a moon of Mars - has been presented. The theory is based on the problem of two fixed gravitational centers. The analytical functions appearing in this model are expressed as a series of the third order with respect to the J2 and zonal harmonics of Mars. The interaction between Phobos and Mars is described by a potential consisting of very many elements. The zonal harmonics of order 12 and tesseral harmonics of order 6 are taken into account. Interactions of Phobos with the Sun, Jupiter, Deimos - another moon of Mars, and the tidal potential of the Sun are also taken into account.
Key words: planets and satellites: individual: Phobos -- methods: analytical
© ESO 2004