NSSDCA/COSPAR ID: 1975-039B
This French spacecraft had a 26-face polyhedron shape with a diameter of 80 cm. The primary mission objective was to study the upper atmosphere density variations. Secondary objectives included a study of gravity field perturbations and a study of micrometeorite impacts. A three-axis magnetometer was used to provide attitude information. Each one of the spacecraft faces contained a laser reflector. Data were measured either every 0.1 s or every 2.8 s. The data transmission rate was 1024 bits/s from the tape recorder and either 256 or 512 bits/s directly from telemetry. Operations were conducted by the operations center in Toulouse using the CNES network of telemetry and telecommand stations.
Launch Date: 1975-05-17
Launch Vehicle: Diamant
Launch Site: Kourou, French Guiana
Mass: 76 kg
Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office
Name | Role | Original Affiliation | |
---|---|---|---|
Mr. J. P. Chassaing | General Contact | Centre National d'Etudes Spatiales | |
Dr. Francois E. Barlier | Project Scientist | Centre d'Etudes et de Recherche Geodynamiques er Astronomiques | barlier@obs-azur.fr |
Mr. A. Olivero | Project Manager | Centre National d'Etudes Spatiales |