Thermal performance evaluation tests on the Small Helium Cooled Infrared Telescope (IRT), prior to flight on Spacelab 2 in 1985, are reported. The telescope is a joint project of the Smithsonian Astrophysical Observatory, the University of Arizona, and the NASA-Marshall Space Flight Center. Starting with 190 liters of liquid helium to be converted to superfluid, 140 liters should be available at launch; 100 liters would be available 48 hours into the mission when first observations begin and 30 liters should be left as a reserve at payload deactivation. New data and insight have been gained regarding the processes which govern the functioning of a porous plug phase separator for superfluid helium.
Infrared telescope (IRT) system cryogenic performance
1985-01-01
Conference paper
No indication
English
Ultralightweight silicon carbide infrared cryogenic telescope
Tema Archive | 1995
|THERMAL DESIGN OF CRYOGENIC SYSTEM FOR SPACE INFRARED TELESCOPE "SPICA"
British Library Conference Proceedings | 2003
|Its-K infrared cryogenic telescope-spectrometer aboard salyut-4
Tema Archive | 1975
|Cryogenic/thermal system for the SIRTF Cryogenic Telescope Assembly
Tema Archive | 2003
|