AbstractSolar Orbiter will enhance our knowledge of the Sun by observations and in situ measurements as close as 0.22AU from our star. Placed on an orbit with a period two-thirds the one of Venus, Solar Orbiter will use the many encounters with the planet to gradually incline its orbit and gain view on the Sun's poles. The permanent in situ observations will be associated to remote-sensing observations over large parts of the orbits.ESA Science Directorate has awarded in parallel two Solar Orbiter Heat Shield and System Technology contracts to industry. This paper presents the achievements of Thales Alenia Space thanks to one of these two ESA contracts.It shows how the main technical challenge brought by the heat flux of 20 solar constants has been addressed by the system and heat shield design. The design and manufacturing of a breadboard of the heat shield in view of thermal test verification is then reported. The main technological developments and residual risks are assessed, paving the way for the definition phase of the program.
Solar Orbiter—Heat shield and system technology
Acta Astronautica ; 65 , 7-8 ; 1076-1088
2009-03-09
13 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
AOCS , attitude and orbit control subsystem , FDIR , failure detection identification and recovery , FS , front shield , HGA , high gain antenna , HS , heat shield , HTHB , high temperature heat barrier , IR , infra red , MGA , medium gain antenna , MLI , multi-layer insulation , MPPT , maximum power point tracking , OSR , optical solar reflectors , PDHU , Payload Data Handling Unit , PPS , pulse per second , RF , radio frequency , S/C , SpaceCraft , SMU , Satellite Management Unit
Solar Orbiter—Heat shield and system technology
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