The orbital test satellite OTS-2 - Two years of orbital thermal-control experience
Abstract
The performance of the passive thermal control subsystem developed for the Orbital Test Satellite OTS-2 is discussed. In-orbit test results are compared with predictions based on tests simulating space conditions. The initial performance of the subsystem was close to that predicted; however, the spacecraft underwent more thermal degradation than expected during its first two years in orbit, probably as the result of contamination. The equinox data show a small temperature increase related to degradation of the coating on the surface rotating with respect to the sun vector. The observed increase is expected to continue at the solstices, but with a decreasing slope.
- Publication:
-
ESA Bulletin
- Pub Date:
- May 1981
- Bibcode:
- 1981ESABu..26...54B
- Keywords:
-
- Ots (Esa);
- Performance Tests;
- Satellite Temperature;
- Temperature Control;
- Thermal Degradation;
- Equinoxes;
- Payloads;
- Spacecraft Antennas;
- Technology Assessment;
- Launch Vehicles and Space Vehicles