Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979engm.reptr.....&link_type=abstract
Final Report Engins Matra, Velizy (France).
Astronomy and Astrophysics
Astronomy
Astronomical Maps, Extreme Ultraviolet Radiation, Satellite Design, Systems Engineering, Ultraviolet Astronomy, X Ray Astronomy, Focal Plane Devices, Satellite Orbits, Satellite-Borne Instruments, Service Modules, Spacecraft Modules, Temperature Control, Ultraviolet Telescopes, X Ray Telescopes
Scientific paper
A longitudinal configuration comprising a service module and two telescope assemblies (X-ray, UV) was adopted for the EXUV satellite. The telescopes are parallel to launcher (Ariane) longitudinal axis. The advantages of longitudinal configuration over transverse are: less demanding dynamic balance requirements; payload growth potential; no solar scattering hazard from service module; and less sensitivity of payload contamination from thrusters. The satellite is three axis spin stabilized. The service module is a parallelipipedic box with two equipment floors supported by a central cylinder. The payload is on top of the service module. Each telescope is cantilevered at the focal plane assembly interface, using a statically determinate mounting system consisting of three sliding trunnions with spherical bearings.
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