Zobrazeno 1 - 10
of 350
pro vyhledávání: '"Lainey, V."'
Publikováno v:
Planetary and Space Science 219 (2022): 105531
When reconstructing natural satellites' ephemerides from space missions' tracking data, the dynamics of the spacecraft and natural bodies are often solved for separately, in a decoupled manner. Alternatively, the ephemeris generation and spacecraft o
Externí odkaz:
http://arxiv.org/abs/2308.06779
Publikováno v:
Astronomy & Astrophysics 652 (2021): A93
The apparent close encounters of two satellites in the plane of the sky, called mutual approximations, have been suggested as a different type of astrometric observation to refine the moons' ephemerides. The main observables are the central instants
Externí odkaz:
http://arxiv.org/abs/2307.15976
Publikováno v:
A&A 677, A42 (2023)
The upcoming JUICE and Europa Clipper missions to Jupiter's Galilean satellites will provide radio science tracking measurements of both spacecraft. Such data are expected to significantly help estimating the moons' ephemerides and related dynamical
Externí odkaz:
http://arxiv.org/abs/2307.15966
Stellar occultations currently provide the most accurate ground-based measurements of the positions of natural satellites (down to a few kilometres for the Galilean moons). However, when using these observations in the calculation of satellite epheme
Externí odkaz:
http://arxiv.org/abs/2307.15961
Autor:
Zhang, Q. F., Qin, W. H., Ma, Y. L., Lainey, V., Cooper, N. J., Rambaux, N., Li, Y., Zhu, W. H.
Phoebe is the only major satellite of Saturn with a retrograde orbit. The Cassini Imaging Science Subsystem (ISS) took a lot of Phoebe images between 2004 and 2017, but only a selection of them has been reduced. In this paper, we reduced the remainin
Externí odkaz:
http://arxiv.org/abs/2208.10345
Autor:
Morgado, B. E., Gomes-Júnior, A. R., Braga-Ribas, F., Vieira-Martins, R., Desmars, J., Lainey, V., D'aversa, E., Dunham, D., Moore, J., Baillié, K., Herald, D., Assafin, M., Sicardy, B., Aoki, S., Bardecker, J., Barton, J., Blank, T., Bruns, D., Carlson, N., Carlson, R. W., Cobble, K., Dunham, J., Eisfeldt, D., Emilio, M., Jacques, C., Hinse, T. C., Kim, Y., Malacarne, M., Maley, P. D., Maury, A., Meza, E., Oliva, F., Orton, G. S., Pereira, C. L., Person, M., Plainaki, C., Sfair, R., Sindoni, G., Smith, M., Sussenbach, E., Stuart, P., Vrolijk, J., Winter, O. C.
Publikováno v:
The Astronomical Journal, Volume 163, Number 5, 2022
A stellar occultation occurs when a Solar System object passes in front of a star for an observer. This technique allows the determination of sizes and shapes of the occulting body with kilometer precision. Also, this technique constrains the occulti
Externí odkaz:
http://arxiv.org/abs/2203.11711
Publikováno v:
In Icarus 15 January 2025 426
Publikováno v:
In Icarus 1 July 2024 416
Autor:
Lainey, V., Pasewaldt, A., Robert, V., Rosenblatt, P., Jaumann, R., Oberst, J., Roatsch, T., Willner, K., Ziese, R., Thuillot, W.
The Mars Express (MEX) mission has been successfully operated around Mars since 2004. Among many results, MEX has provided some of the most accurate astrometric data of the two Mars moons, Phobos and Deimos. In this work we present new ephemerides of
Externí odkaz:
http://arxiv.org/abs/2009.06482
Autor:
Morgado, B., Benedetti-Rossi, G., Gomes-Júnior, A. R., Assafin, M., Lainey, V., Vieira-Martins, R., Camargo, J. I. B., Braga-Ribas, F., Boufleur, R. C., Fabrega, J., Machado, D. I., Maury, A., Trabuco, L. L., de Barros, J. R., Cacella, P., Crispim, A., Jaques, C., Navas, G. Y., Pimentel, E., Rommel, F. L., de Santana, T., Schoenell, W., Sfair, R., Winter, O. C.
Publikováno v:
A&A, 626, L4 (2019)
Context. Bright stellar positions are now known with an uncertainty below 1 mas thanks to Gaia DR2. Between 2019-2020, the Galactic plane will be the background of Jupiter. The dense stellar background will lead to an increase in the number of occult
Externí odkaz:
http://arxiv.org/abs/1905.12520