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Thailand Earth Observation System: mission and products / M. Kaewmanee in Revue Française de Photogrammétrie et de Télédétection, n° 185 (Mars 2007)  

Public [article]  inRevue Française de Photogrammétrie et de Télédétection > n° 185 (Mars 2007) . - pp 12 - 18 Titre : Thailand Earth Observation System: mission and products Type de document : Article/Communication Auteurs : M. Kaewmanee, Auteur ; T. Choomnoommannee, Auteur ; R. Fraisse, Auteur Année de publication : 2007 Conférence : ISPRS 2006, Commission 1 Symposium, From sensors to imagery 03/07/2006 06/07/2006 Champs-sur-Marne [Paris Marne-la-Vallée] France OA ISPRS Archives Article en page(s) : pp 12 - 18 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s) [Termes IGN] image multibande [Termes IGN] image panchromatique [Termes IGN] mission spatiale [Termes IGN] satellite agile [Termes IGN] secteur terrien [Termes IGN] THEOS Résumé : (Auteur) Thailand Earth Observation System (THEOS) Development Program was begun in July 2004. The program is developed by Geo-Informatics and Space Technology Development Agency (Public Organization) (GISTDA) under the Ministry of Science and Technology, with European Aeronautic Defence and Space Company - Astrium (EADS Astrium SAS), in France, as a prime contractor. It consists of design, development, test, launch, and commissioning phases of THEOS satellite, as well as integration with associated control and data exploitation ground facilities. The aim of this paper is to present the characteristics of THEOS program which consists of the system architecture, satellite architecture, its associated ground facilities (Control Ground Segment and Image Ground Segment) and their products. THEOS satellite is a compact and agile satellite with a mass of 750 kilograms and a power consumption of 800 Watts. It has two push-broom scanning optical instruments, providing worldwide imagery in Panchromatic and Multispectral modes, covering the Visible and Near Infrared spectrum. The Panchromatic instrument has a resolution of 2 metres and a swath width of 22 kilometres. The Multispectral instrument has a resolution of 15 metres and a swath width of 90 kilometres. The satellite will be launched into a sun-synchronous low earth orbit in July 2007 and will have a design lifetime of at least 5 years. THEOS CGS (Control Ground Segment) will be established in Thailand to provide commands and control of the satellite. The satellite can be programmed either to downlink image data in real-time imaging or to read from the onboard memory and transmit image data recorded earlier during the same or previous orbital revolutions. Facilities will be provided at this station to accommodate the reception and processing of the data. THEOS system routine operational activities are organised on a daily basis with flexibility enabling to urgent requests. Data downlinked from the instrument will be transmitted to THEOS IGS (Image Ground Segment). The role of THEOS IGS is to provide value added products from THEOS images corresponding to end users' needs. It is equipped with a 13m X band antenna and RF electronics. Its hardware and software enable the automatic processing of the transmitted image telemetry (at 120 Mbps) up to level 2A. The 4 working stations of the Image Exploitation Facility provide high level tools to generate added value and precision product. Copyright SFPT Numéro de notice : A2007-396 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans En ligne : https://www.isprs.org/proceedings/XXXVI/part1/Papers/T04-16.pdf Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28759 [article]

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