caa a22 4500 44582994X CHVBK 20180317145310.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10686-010-9188-z doi (NATIONALLICENCE)springer-10.1007/s10686-010-9188-z The lunar gravity mission MAGIA: preliminary design and performances [Elektronische Daten] [Marco Fermi, Marco Gregnanin, Marco Mazzolena, Massimiliano Chersich, Mirko Reguzzoni, Fernando Sansò] The importance of an accurate model of the Moon gravity field has been assessed for future navigation missions orbiting and/or landing on the Moon, in order to use our natural satellite as an intermediate base for next solar system observations and exploration as well as for lunar resources mapping and exploitation. One of the main scientific goals of MAGIA mission, whose Phase A study has been recently funded by the Italian Space Agency (ASI), is the mapping of lunar gravitational anomalies, and in particular those on the hidden side of the Moon, with an accuracy of 1 mGal RMS at lunar surface in the global solution of the gravitational field up to degree and order 80. MAGIA gravimetric experiment is performed into two phases: the first one, along which the main satellite shall perform remote sensing of the Moon surface, foresees the use of Precise Orbit Determination (POD) data available from ground tracking of the main satellite for the determination of the long wavelength components of gravitational field. Improvement in the accuracy of POD results are expected by the use of ISA, the Italian accelerometer on board the main satellite. Additional gravitational data from recent missions, like Kaguya/Selene, could be used in order to enhance the accuracy of such results. In the second phase the medium/short wavelength components of gravitational field shall be obtained through a low-to-low (GRACE-like) Satellite-to-Satellite Tracking (SST) experiment. POD data shall be acquired during the whole mission duration, while the SST data shall be available after the remote sensing phase, when the sub-satellite shall be released from the main one and both satellites shall be left in a free-fall dynamics in the gravity field of the Moon. SST range-rate data between the two satellites shall be measured through an inter-satellite link with accuracy compliant with current state of art space qualified technology. SST processing and gravitational anomalies retrieval shall benefit from a second ISA accelerometer on the sub-satellite in order to decouple lunar gravitational signal from other accelerations. Experiment performance analysis shows that the stated scientific requirements can be achieved with a low mass and low cost sub-satellite, with a SST gravimetric mission of just few months. Springer Science+Business Media B.V., 2010 Moon nationallicence Gravitational field nationallicence Precise orbit determination nationallicence Satellite to satellite tracking nationallicence Fermi Marco Galileian Plus S.r.l., via Tiburtina 755, 00159, Rome, Italy aut Gregnanin Marco Galileian Plus S.r.l., via Tiburtina 755, 00159, Rome, Italy aut Mazzolena Marco Galileian Plus S.r.l., via Tiburtina 755, 00159, Rome, Italy aut Chersich Massimiliano Galileian Plus S.r.l., via Tiburtina 755, 00159, Rome, Italy aut Reguzzoni Mirko Department of Geophysics of the Lithosphere, OGS, c/o Politecnico di Milano, Polo Regionale di Como, Via Valleggio 11, 22100, Como, Italy aut Sansò Fernando DIIAR, Politecnico di Milano, Polo Regionale di Como, Via Valleggio 11, 22100, Como, Italy aut Experimental Astronomy Springer Netherlands 32/1(2011-10-01), 1-18 0922-6435 32:1<1 2011 32 10686 https://doi.org/10.1007/s10686-010-9188-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10686-010-9188-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fermi Marco Galileian Plus S.r.l., via Tiburtina 755, 00159, Rome, Italy aut NATIONALLICENCE 700 1- Gregnanin Marco Galileian Plus S.r.l., via Tiburtina 755, 00159, Rome, Italy aut NATIONALLICENCE 700 1- Mazzolena Marco Galileian Plus S.r.l., via Tiburtina 755, 00159, Rome, Italy aut NATIONALLICENCE 700 1- Chersich Massimiliano Galileian Plus S.r.l., via Tiburtina 755, 00159, Rome, Italy aut NATIONALLICENCE 700 1- Reguzzoni Mirko Department of Geophysics of the Lithosphere, OGS, c/o Politecnico di Milano, Polo Regionale di Como, Via Valleggio 11, 22100, Como, Italy aut NATIONALLICENCE 700 1- Sansò Fernando DIIAR, Politecnico di Milano, Polo Regionale di Como, Via Valleggio 11, 22100, Como, Italy aut NATIONALLICENCE 773 0- Experimental Astronomy Springer Netherlands 32/1(2011-10-01), 1-18 0922-6435 32:1<1 2011 32 10686 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer