Speaker
Mr
Christian DURIN
(CNES)
Description
The CNES works for several years on the use of detectors during operational spatial missions as well as on the dedicated missions. By detectors we understand specific sensors to measure one of the parameters of the environment and/or the spatial structures which in case of return to earth can become surfaces witnesses to measure the effects of the environment on materials. We will focus more on the first item in the rest of the presentation
The importance of this approach " in flight tests " is justified by several factors:
- Improve our knowledge of our close environment ·
- To better understand the phenomena of synergy between several parameters of the
environment
- To supply entries for models of environment and design
- To compare the flight data with the ground test
- To optimize our tests and save cost
The opportunities of flight being rather rare, the resources limited, the design of these experiments was optimized in order to be used on several carriers while limiting the mass, the power and the exchange of data.
Three parameters/sensors are going to be presented:
- Micrometeoroids and orbital debris (M&D)
The instruments proposed for different mission have used an active detection system: SODAD and a passive detection system based on a new material: Silica Aerogel.
- ATOX (monoatomic oxygen)
The instruments use resistance measurement of reference material.
- Thermo-optical coating properties change
The instrument (THERME) proposed for different missions (LEO, GEO) is simple, adjustable and with a robust definition and has 20 years of flight heritage
Summary
This presentation will describe sensors technologies used and the principal scientific objectives. The first in flight results will be presented and compared to numerical simulation and ground tests.
Primary author
Mr
Christian DURIN
(CNES)
Co-authors
Ms
Elisabeth Laurent
(CNES)
Mrs
Stéphanie REMAURY
(CNES)
