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Planetary Radio Interferometry and Doppler Experiment (PRIDE) technique: A test case of the Mars Express Phobos fly-by

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posted on 2023-05-19, 03:02 authored by Duev, DA, Pogrebenko, SV, Cimo, G, Molera Calves, G, Bocanegra Bahamon, TM, Gurvits, LI, Kettenis, MM, Kania, J, Tudose, V, Rosenblatt, P, Marty, J-C, Lainey, V, de Vicente, P, Quick, J, Nickola, M, Neidhardt, A, Kronschnabl, G, Ploetz, C, Haas, R, Lindqvist, M, Orlati, A, Ipatov, AV, Kharinov, MA, Mikhailov, AG, James LovellJames Lovell, Jamie McCallumJamie McCallum, Stevens, J, Gulyaev, SA, Natush, T, Weston, S, Wang, WH, Xia, B, Yang, WJ, Hao, L-F, Kallunki, J, Witasse, O

Context: The closest ever fly-by of the Martian moon Phobos, performed by the European Space Agency’s Mars Express spacecraft, gives a unique opportunity to sharpen and test the Planetary Radio Interferometry and Doppler Experiments (PRIDE) technique in the interest of studying planet–satellite systems.

Aims: The aim of this work is to demonstrate a technique of providing high precision positional and Doppler measurements of planetary spacecraft using the Mars Express spacecraft. The technique will be used in the framework of Planetary Radio Interferometry and Doppler Experiments in various planetary missions, in particular in fly-by mode.

Methods: We advanced a novel approach to spacecraft data processing using the techniques of Doppler and phase-referenced very long baseline interferometry spacecraft tracking.

Results: We achieved, on average, mHz precision (30 μm/s at a 10 s integration time) for radial three-way Doppler estimates and sub-nanoradian precision for lateral position measurements, which in a linear measure (at a distance of 1.4 AU) corresponds to ~50 m.

History

Publication title

Astronomy & Astrophysics

Volume

593

Article number

A34

Number

A34

Pagination

1-10

ISSN

1432-0746

Department/School

School of Natural Sciences

Publisher

E D P Sciences

Place of publication

France

Rights statement

Copyright ESO 2016

Repository Status

  • Open

Socio-economic Objectives

Expanding knowledge in the physical sciences

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