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DORIS/Jason-2: Better than 10 cm on-board orbits available for near-real-time altimetry / Christian Jayles in Advances in space research, vol 46 n° 12 (15/12/2010)
[article]
Titre : DORIS/Jason-2: Better than 10 cm on-board orbits available for near-real-time altimetry Type de document : Article/Communication Auteurs : Christian Jayles, Auteur ; J.P. Chauveau, Auteur ; F. Rozo, Auteur Année de publication : 2010 Article en page(s) : pp 1497 - 1512 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Techniques orbitales
[Termes IGN] altimétrie
[Termes IGN] DIODE (détermination d'orbite)
[Termes IGN] données DORIS
[Termes IGN] Jason
[Termes IGN] orbitographie
[Termes IGN] précision centimétrique
[Termes IGN] temps réel
[Termes IGN] trajectographie par DORISRésumé : (Auteur) DIODE (DORIS Immediate Orbit on-board Determination) is a real-time on-board orbit determination software, embedded in the DORIS receiver. The purpose of this paper is to focus on DIODE performances. After a description of the recent DORIS evolutions, we detail how compliance with specifications are verified during extensive ground tests before the launch, then during the in-flight commissioning phase just after the launch, and how well they are met in the routine phase and today. Future improvements are also discussed for Jason-2 as well as for the next missions. The complete DORIS ground validation using DORIS simulator and new DORIS test equipments has shown prior to the Jason-2 flight that every functional requirement was fulfilled, and also that better than 10 cm real-time DIODE orbits would be achieved on-board Jason-2. The first year of Jason-2 confirmed this, and after correction of a slowly evolving polar motion error at the end of the commissioning phase, the DIODE on-board orbits are indeed better than the 10 cm specification: in the beginning of the routine phase, the discrepancy was already 7.7 cm Root-Mean-Square (RMS) in the radial component as compared to the final Precise Orbit Ephemerides (POE) orbit. Since the first day of Jason-2 cycle 1, the real-time DIODE orbits have been delivered in the altimetry fast delivery products. Their accuracy and their 100% availability make them a key input to fairly precise Near-Real-Time Altimetry processing. Time-tagging is at the microsecond level. In parallel, a few corrections (quaternion problem) and improvements have been gathered in an enhanced version of DIODE, which is already implemented and validated. With this new version, a 5 cm radial accuracy is achieved during ground validation over more than Jason-2 first year (cycles 1–43, from July 12th, 2008 to September 11th, 2009). The Seattle Ocean Surface Topography Science Team Meeting (OSTST) has recommended an upload of this v4.02 version on-board Jason-2 in order to take benefit from more accurate real-time orbits. For the future, perhaps the most important point of this work is that a 9 mm consistency is observed on-ground between simulated and adjusted orbits, proving that the DORIS measurement is very precisely and properly modelled in the DIODE navigation software. This implies that improvement of DIODE accuracy is still possible and should be driven by enhancement of the physical models: forces and perturbations of the satellite movement, Radio/Frequency phenomena perturbing measurements. A 2-cm accuracy is possible with future versions, if analysis and model improvements continue to progress. Numéro de notice : A2010-563 Affiliation des auteurs : non IGN Thématique : IMAGERIE/POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.asr.2010.04.030 En ligne : https://doi.org/10.1016/j.asr.2010.04.030 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30755
in Advances in space research > vol 46 n° 12 (15/12/2010) . - pp 1497 - 1512[article]DORIS applications for solid earth and atmospheric sciences / Pascal Willis in Comptes rendus : Géoscience, vol 339 n°16 ([01/12/2007])
[article]
Titre : DORIS applications for solid earth and atmospheric sciences Titre original : Applications DORIS aux sciences de la Terre solide et aux sciences de l’atmosphère Type de document : Article/Communication Auteurs : Pascal Willis , Auteur ; Laurent Soudarin, Auteur ; Christian Jayles, Auteur ; Lucie Rolland, Auteur Année de publication : 2007 Article en page(s) : pp 949 - 959 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] DORIS
[Termes IGN] orbitographieRésumé : (auteur) DORIS is a French precise orbit determination system. However, in the past four years, through the creation of the International DORIS Service, a larger international cooperation was involved. Furthermore, the precision of its scientific applications (geodesy, geophysics) gradually improved and expanded to new fields (atmospheric sciences), leading, for example, to the publication of a special issue of the Journal of Geodesy. The goal of this manuscript is to present and explain these changes and to put them in perspective with current results obtained with other space geodetic techniques, such as GPS or Satellite Laser Ranging. Numéro de notice : A2007-685 Affiliation des auteurs : IGN+Ext (1940-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.crte.2007.09.015 Date de publication en ligne : 26/11/2007 En ligne : https://doi.org/10.1016/j.crte.2007.09.015 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=102781
in Comptes rendus : Géoscience > vol 339 n°16 [01/12/2007] . - pp 949 - 959[article]Rapport Quadriennal 2003-2006 [du] CNFGG, ch. DORIS applications for Earth and atmospheric sciences / Pascal Willis (2007)
contenu dans Rapport Quadriennal 2003-2006 [du] CNFGG [à la] 24e assemblée générale de l'Union Géodésique et Géophysique Internationale / D. Schertzer (2007)
Titre de série : Rapport Quadriennal 2003-2006 [du] CNFGG, ch Titre : DORIS applications for Earth and atmospheric sciences Type de document : Chapitre/Contribution Auteurs : Pascal Willis , Auteur ; Laurent Soudarin, Auteur ; Christian Jayles, Auteur ; Lucie Rolland, Auteur Editeur : Paris : Comité National Français de Géodésie et Géophysique CNFGG Année de publication : 2007 Conférence : IUGG 2007, 24th general assembly UGGI 02/07/2007 13/07/2007 Pérouse Italie Importance : pp 69 - 97 Langues : Anglais (eng) Numéro de notice : H2007-008 Affiliation des auteurs : IGN+Ext (1940-2011) Thématique : POSITIONNEMENT Nature : Chapître / contribution DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=102832 Documents numériques
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DORIS applications - pdf éditeurAdobe Acrobat PDF Doris: from orbit determination for altimeter missions to geodesy / Pascal Willis in Comptes rendus : Géoscience, vol 338 n° 14-15 (November 2006)
[article]
Titre : Doris: from orbit determination for altimeter missions to geodesy Type de document : Article/Communication Auteurs : Pascal Willis , Auteur ; Christian Jayles, Auteur ; Yoaz E. Bar-Sever, Auteur Année de publication : 2006 Article en page(s) : pp 968 - 979 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] altimétrie satellitaire par radar
[Termes IGN] données DORIS
[Termes IGN] International DORIS Service
[Termes IGN] orbite basse
[Termes IGN] orbitographie
[Termes IGN] positionnement par DORIS
[Termes IGN] précision centimétrique
[Termes IGN] temps réelRésumé : (Auteur) In the late 1980s, the French Centre national d'études spatiales' (CNES), in conjunction with the Institut géographique national' (IGN) and the Groupe de recherche en géodésie spatiale' (GRGS) developed a new geodetic tracking system called DORIS for precise orbit determination of low Earth orbiting satellites for oceanographic missions. Since then, the number of applications has increased, leading recently to the creation of an International DORIS Service (IDS), making it a part of the Global Geodetic Observation System (GGOS) currently under development within the International Association of Geodesy (IAG). The goal of this paper is to present the current applications of the DORIS system for precise orbit determination as well as for geodesy, geophysics, Earth rotation or atmospheric sciences. Current accuracies are discussed as well as already planned improvements. In particular, recent improvements in on-board real time orbit showing 5-cm radial agreement with post-processed orbits are discussed. In addition, when using a 5-satellite constellation, 1-cm precision is achievable for station position as well as sub milli-arcsecond precision for polar motion. Copyright Elsevier Numéro de notice : A2006-659 Affiliation des auteurs : LAREG+Ext (1991-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueNat DOI : 10.1016/j.crte.2005.11.013 Date de publication en ligne : 24/01/2006 En ligne : https://doi.org/10.1016/j.crte.2005.11.013 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=33631
in Comptes rendus : Géoscience > vol 338 n° 14-15 (November 2006) . - pp 968 - 979[article]Improved DORIS accuracy for precise orbit determination and geodesy / Pascal Willis (2004)
contenu dans La recherche scientifique spatiale en France, Rapport 2004 au Cospar, Comité Mondial de la Recherche Spatiale, 35e assemblée scientifique, 18-25 juillet 2004 / Yves d' Escatha (2004)
Titre : Improved DORIS accuracy for precise orbit determination and geodesy Titre original : Amélioration de la précision DORIS en orbitographie et en géodésie Type de document : Article/Communication Auteurs : Pascal Willis , Auteur ; Christian Jayles, Auteur ; Gilles Tavernier, Auteur Editeur : Paris, Toulouse, Kourou [France] : Centre National d'Etudes Spatiales CNES Année de publication : 2004 Conférence : COSPAR 2004, 35th scientific assembly of the world committee for space research 18/07/2004 25/07/2004 Paris France Importance : pp 110 - 111 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] diode
[Termes IGN] DORIS
[Termes IGN] orbitographie
[Termes IGN] positionnement par DORIS
[Termes IGN] précision centimétrique
[Termes IGN] précision décimétriqueRésumé : (Auteur) In 2001 and 2002, three more DORIS satellites were launched. Since then, all DORIS result have been significantly improved. For precise orbit determination, 20 cm are now available in real-time with DIODE and 1,5 to 2 cm in post -processing. For geodesy, 1 cm precision can now be achieved regularly every week, making now DORIS an active part of a Integrated Global Geodetic Observing System through the international DORIS Service (IDS) Numéro de notice : C2004-003 Affiliation des auteurs : LAREG+Ext (1991-2011) Thématique : IMAGERIE Nature : Communication DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=65014 Evolution de l'interface du SOD avec le GRGS, l'IGN, le CLS [Collecte Localisation Satellite] pour les échanges de données DORIS / Christian Jayles (1990)PermalinkTemps de propagation entre une station et un satellite / Christian Jayles (1986)Permalink