Use of MESSENGER radioscience data to improve planetary ephemeris and to test general relativity
Title: | Use of MESSENGER radioscience data to improve planetary ephemeris and to test general relativity |
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Authors: | Verma, Ashok, Fienga, Agnes, Laskar, Jacques, Manche, Herve, Gastineau, Mickael |
Publication Year: | 2013 |
Collection: | Astrophysics General Relativity and Quantum Cosmology |
Subject Terms: | Astrophysics - Earth and Planetary Astrophysics, General Relativity and Quantum Cosmology |
More Details: | The current knowledge of Mercury orbit has mainly been gained by direct radar ranging obtained from the 60s to 1998 and by five Mercury flybys made by Mariner 10 in the 70s, and MESSENGER made in 2008 and 2009. On March 18, 2011, MESSENGER became the first spacecraft to orbit Mercury. The radioscience observations acquired during the orbital phase of MESSENGER drastically improved our knowledge of the orbit of Mercury. An accurate MESSENGER orbit is obtained by fitting one-and-half years of tracking data using GINS orbit determination software. The systematic error in the Earth-Mercury geometric positions, also called range bias, obtained from GINS are then used to fit the INPOP dynamical modeling of the planet motions. An improved ephemeris of the planets is then obtained, INPOP13a, and used to perform general relativity tests of PPN-formalism. Our estimations of PPN parameters (beta and gamma?) are more stringent than previous results. Comment: Accepted by A&A |
Document Type: | Working Paper |
DOI: | 10.1051/0004-6361/201322124 |
Access URL: | http://arxiv.org/abs/1306.5569 |
Accession Number: | edsarx.1306.5569 |
Database: | arXiv |
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Items | – Name: Title Label: Title Group: Ti Data: Use of MESSENGER radioscience data to improve planetary ephemeris and to test general relativity – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Verma%2C+Ashok%22">Verma, Ashok</searchLink><br /><searchLink fieldCode="AR" term="%22Fienga%2C+Agnes%22">Fienga, Agnes</searchLink><br /><searchLink fieldCode="AR" term="%22Laskar%2C+Jacques%22">Laskar, Jacques</searchLink><br /><searchLink fieldCode="AR" term="%22Manche%2C+Herve%22">Manche, Herve</searchLink><br /><searchLink fieldCode="AR" term="%22Gastineau%2C+Mickael%22">Gastineau, Mickael</searchLink> – Name: DatePubCY Label: Publication Year Group: Date Data: 2013 – Name: Subset Label: Collection Group: HoldingsInfo Data: Astrophysics<br />General Relativity and Quantum Cosmology – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Astrophysics+-+Earth+and+Planetary+Astrophysics%22">Astrophysics - Earth and Planetary Astrophysics</searchLink><br /><searchLink fieldCode="DE" term="%22General+Relativity+and+Quantum+Cosmology%22">General Relativity and Quantum Cosmology</searchLink> – Name: Abstract Label: Description Group: Ab Data: The current knowledge of Mercury orbit has mainly been gained by direct radar ranging obtained from the 60s to 1998 and by five Mercury flybys made by Mariner 10 in the 70s, and MESSENGER made in 2008 and 2009. On March 18, 2011, MESSENGER became the first spacecraft to orbit Mercury. The radioscience observations acquired during the orbital phase of MESSENGER drastically improved our knowledge of the orbit of Mercury. An accurate MESSENGER orbit is obtained by fitting one-and-half years of tracking data using GINS orbit determination software. The systematic error in the Earth-Mercury geometric positions, also called range bias, obtained from GINS are then used to fit the INPOP dynamical modeling of the planet motions. An improved ephemeris of the planets is then obtained, INPOP13a, and used to perform general relativity tests of PPN-formalism. Our estimations of PPN parameters (beta and gamma?) are more stringent than previous results.<br />Comment: Accepted by A&A – Name: TypeDocument Label: Document Type Group: TypDoc Data: Working Paper – Name: DOI Label: DOI Group: ID Data: 10.1051/0004-6361/201322124 – Name: URL Label: Access URL Group: URL Data: <link linkTarget="URL" linkTerm="http://arxiv.org/abs/1306.5569" linkWindow="_blank">http://arxiv.org/abs/1306.5569</link> – Name: AN Label: Accession Number Group: ID Data: edsarx.1306.5569 |
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RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1051/0004-6361/201322124 Subjects: – SubjectFull: Astrophysics - Earth and Planetary Astrophysics Type: general – SubjectFull: General Relativity and Quantum Cosmology Type: general Titles: – TitleFull: Use of MESSENGER radioscience data to improve planetary ephemeris and to test general relativity Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Verma, Ashok – PersonEntity: Name: NameFull: Fienga, Agnes – PersonEntity: Name: NameFull: Laskar, Jacques – PersonEntity: Name: NameFull: Manche, Herve – PersonEntity: Name: NameFull: Gastineau, Mickael IsPartOfRelationships: – BibEntity: Dates: – D: 24 M: 06 Type: published Y: 2013 |
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