Détail de l'auteur
Auteur F. Lemoine |
Documents disponibles écrits par cet auteur (4)
Ajouter le résultat dans votre panier
Visionner les documents numériques
Affiner la recherche Interroger des sources externesPrecision orbit determination standards for the Jason series of altimeter missions / L. Cerri in Marine geodesy, vol 33 suppl 1 (August 2010)
Titre : Precision orbit determination standards for the Jason series of altimeter missions Type de document : Article/Communication Auteurs : L. Cerri, Auteur ; Jean-Paul Berthias, Auteur ; Willy I. Bertiger, Auteur ; Bruce J. Haines, Auteur ; F. Lemoine, Auteur ; F. Mercier, Auteur ; J.C. Ries, Auteur ; Pascal Willis Année de publication : 2010 Article en page(s) : pp 379 - 418 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Techniques orbitales
[Termes IGN] distorsion radiale
[Termes IGN] Jason
[Termes IGN] mission spatiale
[Termes IGN] orbitographieRésumé : (Auteur) The Jason-1 altimeter satellite and its follow-on mission Jason-2/OSTM were launched in December 2001 and June 2008, respectively, to provide the scientific community with a high-accuracy continuous record of observations of the ocean surface topography. Both missions carry on board three state-of-the-art tracking systems (DORIS, GPS, SLR) to meet the requirement of better-than-1.5 cm radial accuracy for the operational orbit included in the geophysical data record (GDR) product.
This article outlines the common set of models and processing techniques applied to both Jason reprocessed and operational orbits included in version C of the GDR, referred to as GDR-C standards for precision orbit determination (POD), and describes the systematic components of the radial error budget that are of most interest for the altimeter data analysts. The nonsystematic component of the error budget, quantified by intercomparison of orbits using similar models or with reduced dependency on the dynamic models, is generally at or below 7 mm RMS (root-mean-square). In particular, the average daily RMS of the radial difference between the JPL and CNES reduced-dynamic orbits on Jason-2 is below 6 mm. Concerning the dynamic models employed, the principal contributors to residual systematic differences appear to be the time varying gravity and solar radiation pressure, resulting in geographically correlated periodic signals that have amplitudes at the few-mm level. Concerning the drifts of the orbits along the North/South direction, all solutions agree to better than the 1 mm/year level.Numéro de notice : A2010-642 Affiliation des auteurs : IGN+Ext (1940-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01490419.2010.488966 Date de publication en ligne : 09/08/2010 En ligne : https://doi.org/10.1080/01490419.2010.488966 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90716
in Marine geodesy > vol 33 suppl 1 (August 2010) . - pp 379 - 418[article]
Titre : The international DORIS service: genesis and early achievements Type de document : Article/Communication Auteurs : Gilles Tavernier, Auteur ; Hervé Fagard, Auteur ; Martine Feissel-Vernier Année de publication : 2006 Article en page(s) : pp 403 - 417 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] DORIS
[Termes IGN] géodynamique
[Termes IGN] International DORIS Service
[Termes IGN] International Terrestrial Reference Frame
[Termes IGN] rotation de la Terre
[Termes IGN] station DORISRésumé : (Auteur) All space-geodetic techniques are now organized as separate services of the International Association of Geodesy (IAG), supporting the first pilot project “Global Geodetic Observing System (GGOS)”. The International DORIS (Détermination d’Orbite et Radiopositionnement Intégrés par Satellite) Service (IDS) was created in mid-2003 to organize a DORIS contribution to this project and to foster a larger international cooperation on this topic. The goal of this paper is to summarize the key steps that were taken to create this structure and to present its current organization and recent results. At present, more than 50 groups from 35 different countries participate in the IDS at various levels, including 43 groups hosting DORIS stations in 32 countries all around the globe. Four Analysis Centres (ACs) provide results, such as estimates of weekly or monthly station coordinates, geocentre variations or Earth polar motion, that will soon be used to generate IDS-combined products for geodesy and geodynamics. As a first test, a preliminary combination was performed for all the 2004 data from these four ACs. Three of them show RMS of weighted station residuals with respect to this combination solution between 1 and 2 cm. The main topic under investigation is a discrepancy in the scale factor of the terrestrial reference frame (TRF) to map the individual solutions into the combination solution, which reaches 6 cm (multiplying the unit-less scale factor by the Earth radius to get convert scale to millimetre in vertical at the Earth’s surface). Finally, foreseen improvements of the DORIS technology are discussed as well as future improvements concerning the service organization itself and the accuracy and reliability of its scientific products. Copyright Springer Numéro de notice : A2006-532 Affiliation des auteurs : IGN (1940-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-006-0082-4 En ligne : https://doi.org/10.1007/s00190-006-0082-4 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28255
in Journal of geodesy > vol 80 n° 8-11 (November 2006) . - pp 403 - 417[article]Exemplaires(2)
Code-barres Cote Support Localisation Section Disponibilité 266-06102 RAB Revue Centre de documentation En réserve L003 Disponible 266-06101 RAB Revue Centre de documentation En réserve L003 Disponible
Titre : The International DORIS Service Type de document : Article/Communication Auteurs : Gilles Tavernier, Auteur ; Hervé Fagard, Auteur ; Martine Feissel-Vernier Année de publication : 2005 Article en page(s) : pp 333 - 341 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] International DORIS Service
[Termes IGN] International Terrestrial Reference Frame
[Termes IGN] orbite précise
[Termes IGN] positionnement par DORISRésumé : (auteur) The DORIS system was initially developed for precise orbit determination and precise positioning on the Earth. In continuation of the DORIS Pilot Experiment initiated in 1999, the International DORIS Service (IDS) officially started on July 1, 2003 as an IAG Service after an official acceptance from the IAG Executive Committee at the IUGG General Assembly in Sapporo, Japan. Following this decision, the IERS Directing board accepted the DORIS Service as a new IERS external service. Six satellites carrying DORIS receivers are currently in orbit, permanently observed by 56 well-distributed tracking stations. Among these, three satellites (Jason-1, ENVISAT and SPOT5) are equipped with the new generation of DORIS receivers and were launched between December 2001 and May 2002. The DORIS receivers on these three spacecraft include a navigation function, called DIODE. The permanent tracking network has been constantly improved and specific campaigns of observations have been conducted in Wettzell, Gads and in Antarctica. Recent DORIS performances for precise positioning were improved by this large increase in the satellite constellation, leading to almost 1 cm precision for weekly station coordinates. Significant improvements were also obtained in Polar Motion estimations, leading to 1.0–1.5 mas daily results. In 2003 and 2004, several steps were taken to improve the operations of the IDS, as well as its international cooperation, by organizing several specific analysis campaigns. The International DORIS Service has now started its scientific activity on a routine basis for the International Earth Rotation and Reference Systems Service (IERS) and the Global Geodetic Observing System (GGOS). Numéro de notice : A2005-616 Affiliation des auteurs : LAREG+Ext (1991-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.asr.2005.03.102 Date de publication en ligne : 24/05/2005 En ligne : https://doi.org/10.1016/j.asr.2005.03.102 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=102911
in Advances in space research > vol 36 n° 3 (March 2005) . - pp 333 - 341[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 38017-01 30.82 Tiré à part Centre de documentation Géodésie Disponible
Titre : Report of the DORIS Coordination Centers Type de document : Article/Communication Auteurs : Gilles Tavernier, Auteur ; Martine Feissel-Vernier Année de publication : 2002 Article en page(s) : pp 70 - 74 Langues : Anglais (eng) Numéro de notice : A2002-059 Affiliation des auteurs : IGN+Ext (1940-2011) Nature : Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=100969
in CSTG bulletin > n° 17 [01/01/2002] . - pp 70 - 74[article]
