M. Kassebom, B. Penné, S. Mahal, P. Froehner, R. Greinacher, L. de Rocco, S. Hofer, K.P. Förster, T. Stuffler

The Environmental Mapping and Analysis Program (EnMAP) is a joint German initiative under the scientific leadership of the GeoForschungsZentrum (GFZ) Potsdam. In the EnMAP project OHB-System is responsible for the satellite bus. The company Kayser-Threde is the industrial prime contractor for the EnMAP space segment, and is responsible for the satellite system and the Hyper Spectral Imaging Payload. The EnMAP project is carried out under contract to the German Space Agency DLR with funds of the German Federal Ministry of Economic Affairs and Technology under grant No. 50 EP 0801. The EnMAP satellite will have a mission duration of 5 years. With ist unprecedented hyperspectral capabilities covering the visible, near- and short-wave infrared wavelengths, EnMAP will provide high quality Earth observation data on a frequent basis. EnMAP provides information based on about 230 spectral bands in the wavelength range from 420 nm to 2450 nm at a ground sampling distance of 30 m x 30 m. The imaging capacity of the EnMAP system will be at least 30 km x 5000 km per day. The design of the EnMAP satellite bus is now close to ist finalisation at the end of Phase C. This paper will present the status of the EnMAP satellite bus and will highlight ist performances and final design solutions, which are fulfilling the challenging requirements of the EnMAP mission and the hyperspectral instrument. A special emphasis will be laid upon the accurate and agile satellite attitude control system, and the provision of the very high power and thermal control demands of the complete spacecraft. Furthermore, the final design regarding high rate on-board processing and downlink of the hyperspectral instrument data will be presented. The EnMAP satellite bus features a scaleable and modular approach and is based on existing and proven spacecraft design, which is implemented already in the successful SAR-Lupe satellite constellation of OHB-System. Due to this, the EnMAP satellite bus turns out to be a very suitable and cost effective platform also for other Earth observation missions in the medium to very high resolution area for optical or microwave applications. The on-going evolution of the EnMAP satellite bus towards future Earth observation missions will be outlined in this paper, as well.

Deutscher Luft- und Raumfahrtkongress 2010

Conference Paper

englisch

21,0 x 29,7 cm, 10 Seiten

Deutscher Luft- und Raumfahrtkongress Tagungsband - Manuskripte, 2010, 2010, ; S.1099-1108; 2010; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn

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Bestellbar

2010