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The international GLONASS experiment: products, progress and prospects / Robert Weber in Journal of geodesy, vol 75 n° 11 (November 2001)  

Public [article]  inJournal of geodesy > vol 75 n° 11 (November 2001) . - pp 559 - 568 Titre : The international GLONASS experiment: products, progress and prospects Type de document : Article/Communication Auteurs : Robert Weber, Auteur ; Tim A. Springer, Auteur Année de publication : 2001 Article en page(s) : pp 559 - 568 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale [Termes IGN] Global Orbitography Navigation Satellite System [Termes IGN] international GLONASS experiment [Termes IGN] orbitographie [Termes IGN] poursuite de satellite [Termes IGN] rayonnement solaire [Termes IGN] satellite artificiel Résumé : (Auteur) In October 1998 the IGEX field campaign, the first coordinated international effort to monitor GLONASS satellites on global basis, was started. Currently about 40 institutions worldwide support this effort either by providing GLONASS tracking data or in operating related data and analysis centers. The increasing quality and consistency of the calculated GLONASS orbits (about 25 cm early in 2000), even after the end of the official IGEX field campaign, are shown. Particular attention is drawn to the combination of precise ephemerides in order to generate a robust, reliable and complete IGEX orbits product. Some problems in modeling the effect of solar radiation pressure on GLONASS satellites are demonstrated. Finally, the expected benefits and prospects of the upcoming International GLOnass ServicePilot Project (1GLOSPP) of the International GPS Service (IGS) are discussed in more detail. Numéro de notice : A2001-135 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s001900100199 En ligne : https://doi.org/10.1007/s001900100199 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=21830 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
266-01101	RAB	Revue	Centre de documentation	En réserve L003	Disponible
266-01102	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Analytical solar radiation pressure modelling for GLONASS using a pixel array / Marek Ziebart in Journal of geodesy, vol 75 n° 11 (November 2001)  

Public [article]  inJournal of geodesy > vol 75 n° 11 (November 2001) . - pp 587 - 599 Titre : Analytical solar radiation pressure modelling for GLONASS using a pixel array Type de document : Article/Communication Auteurs : Marek Ziebart, Auteur ; Peter Dare, Auteur Année de publication : 2001 Article en page(s) : pp 587 - 599 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Technologies spatiales [Termes IGN] Global Orbitography Navigation Satellite System [Termes IGN] international GLONASS experiment [Termes IGN] modélisation [Termes IGN] orbitographie [Termes IGN] rayonnement solaire Résumé : (Auteur) A new method for calculating analytical solar radiation pressure models for GNSS spacecraft has been developed. The method simulates the flux of light from the Sun using a pixel array. The method can cope with a high level of complexity in the spacecraft structure and models effects due to reflected light. Models have been calculated and tested for the Russhar global navigation satellite system GLONASS IIv spacecraft. Results are presented using numerical integration of the force model and longarc satellite laser ranging (SLR) analysis. The integrated trajectory differs from a precise orbit calculated using a network of global tracking stations by circa 2 m root mean square over a 160 000km arc. The observed computed residuals for the 400day SLR arc are circa 28 min. Numéro de notice : A2001-136 Affiliation des auteurs : non IGN Thématique : IMAGERIE/POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s001900000136 En ligne : https://doi.org/10.1007/s001900000136 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=21831 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
266-01101	RAB	Revue	Centre de documentation	En réserve L003	Disponible
266-01102	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Laser-based validation of GLONASS orbits by short-arc technique / François Barlier in Journal of geodesy, vol 75 n° 11 (November 2001)  

Public [article]  inJournal of geodesy > vol 75 n° 11 (November 2001) . - pp 600 - 612 Titre : Laser-based validation of GLONASS orbits by short-arc technique Type de document : Article/Communication Auteurs : François Barlier, Auteur ; C. Berger, Auteur ; Pascal Bonnefond, Auteur ; Olivier Laurain, Auteur ; J.F. Mangin, Auteur ; J.M. Torre, Auteur Année de publication : 2001 Article en page(s) : pp 600 - 612 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Techniques orbitales [Termes IGN] Global Orbitography Navigation Satellite System [Termes IGN] international GLONASS experiment [Termes IGN] orbitographie [Termes IGN] poursuite de satellite Résumé : (Auteur) The International GLONASS Experiment (1GEX98) was carried out between 19 October 1998 and 19 April 1999. Among several objectives was the precise orbit determination of GPS and GLONASS satellites and its validation by laser ranging observations. Local laser-based orbit corrections (radial, tangential and normal components in a rotating orbital local reference frame) are computed using a geometrical short-are technique. The order of magnitude of these corrections is at the level of few decimeters, depending on the considered components. The orbit corrections are analyzed as a function of several parameters (date, orbital plane, geographical area). The mean corrections are at the level of several centimeters. However, when averaging over the entire campaign and for all the satellites, no mean radial, tangential and normal orbit corrections are found. The origin of the observed corrections is considered (errors due to the geocentric gravitational constant, the nongravitational forces, the thermal equilibrium of on-board equipment, the reference systems, the location and the signature of the retroreflector array, and the precision of the satellite laser ranges). Some features are also due to errors in the radiotracking GLONASS orbits. Further investigations will be needed to better understand the origin of various biases. Numéro de notice : A2001-137 Affiliation des auteurs : non IGN Thématique : IMAGERIE/POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s001900100179 En ligne : https://doi.org/10.1007/s001900100179 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=21832 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
266-01101	RAB	Revue	Centre de documentation	En réserve L003	Disponible
266-01102	RAB	Revue	Centre de documentation	En réserve L003	Disponible

ITRS, PZ-90 and WGS 84: current realizations and the related transformation parameters / Zuheir Altamimi in Journal of geodesy, vol 75 n° 11 (November 2001)  

Public [article]  inJournal of geodesy > vol 75 n° 11 (November 2001) . - pp 613 - 619 Titre : ITRS, PZ-90 and WGS 84: current realizations and the related transformation parameters Type de document : Article/Communication Auteurs : Zuheir Altamimi , Auteur ; Claude Boucher , Auteur Année de publication : 2001 Article en page(s) : pp 613 - 619 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux [Termes IGN] international GLONASS experiment [Termes IGN] International Terrestrial Reference System [Termes IGN] système de référence géodésique [Termes IGN] transformation de coordonnées [Termes IGN] World Geodetic System 1984 Résumé : (Auteur) The first results of the International GLONASS Experiment 1998 (IGEX-98) campaign have provided significant material to illustrate the mutual benefits of the GLONASS system and the realization of the International Terrestrial Reference System (ITRS). A specific aspect, namely the relationship between the World Geodetic System 1984 (WGS 84) and the PZ-90 system using ITRS as a primary standard is investigated. A review of current works is carried out. A transformation strategy is proposed for the three systems based on recent results from IGEX-98 and a independent set of transformation parameters derive by the Jet Propulsion Laboratory from ITRF97 and PZ-90 coordinates for 16 global stations. Numéro de notice : A2001-128 Affiliation des auteurs : IGN+Ext (2012-2019) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s001900100208 En ligne : https://doi.org/10.1007/s001900100208 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26405 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
266-01101	RAB	Revue	Centre de documentation	En réserve L003	Disponible
266-01102	RAB	Revue	Centre de documentation	En réserve L003	Disponible