This page no longer updated from 31 October 2001. Latest version can be found at www.astronautix.com

astronautix.com D


Class: Earth. Type: Geodetic. Nation: France.

Small French science and technology satellites used on early Diamant launch vehicle tests.


Specification


D Chronology


17 February 1966 Diapason Launch Site: Hammaguira . Launch Vehicle: Diamant. Mass: 19 kg. Perigee: 502 km. Apogee: 2,484 km. Inclination: 34.1 deg.

Scientific satellite 'D-I' launched from Hammaguir (Algeria).


15 April 1971 Tournesol Launch Site: Kourou . Launch Vehicle: Diamant B. Mass: 96 kg. Perigee: 457 km. Apogee: 696 km. Inclination: 46.3 deg.
05 December 1971 D-2A Polaire Launch Site: Kourou . Launch Vehicle: Diamant B. FAILURE: Failure.
06 December 1971 D-2A Polaire Launch Site: Kourou . Launch Vehicle: Diamant B. FAILURE: Second stage failed.
21 May 1973 Pollux Launch Site: Kourou . Launch Vehicle: Diamant B. FAILURE: Failure.
17 May 1975 Pollux Launch Site: Kourou . Launch Vehicle: Diamant B. Mass: 35 kg. Perigee: 299 km. Apogee: 1,256 km. Inclination: 30.0 deg.

D5A: Weight 36 kg. Testing in space of a hydrazine catalytic decomposition micropropulsion unit. Responsible organization: Societe Europeene de Propulsion. D5B: Weight 76 kg. Testing in space of the CACTUS accelerometer (ultrasensitive triaxial capacitive accelerometric sensor). Responsible organization: ONERA, Chatillon-sous-Berneux, France.


27 September 1975 Aura Launch Site: Kourou . Launch Vehicle: Diamant B. Mass: 115 kg. Perigee: 476 km. Apogee: 697 km. Inclination: 37.1 deg.

Solar UV radiation experiments. Study of solar and stellar ultraviolet radiation. 1. Spectral analysis of small and large sources located close to the plane of the ecliptic. Responsible organization: Laboratoire d'Astronomie Spatiale, Traverse du Siphon, 13000- Marseille (France). 2. St udy of solar ultraviolet radiation and its absorption by the earth's atmosphere. Responsible organization: Laboratoire de Physique Stellaire et Planetaire, Meudon, France. Weight 106.6 kg.



Bibliography:



Back to Index
Last update 12 March 2001.
Contact Mark Wade with any corrections or comments.
Conditions for use of drawings, pictures, or other materials from this site..
© Mark Wade, 2001 .