Title :
Thermal success of GGS SWE and hydra instruments: design, analysis, verification, flight performance
Author :
Choi, Michael K.
Author_Institution :
NASA Goddard Space Flight Center, Greenbelt, MD, USA
fDate :
27 Jul-1 Aug 1997
Abstract :
The Solar Wind Experiment (SWE) is an essential instrument on the National Aeronautics and Space Administration (NASA) Global Geospace Science (GGS) Interplanetary Physics Laboratory (WIND) spacecraft. The Fast Plasma Analyzer (HYDRA) is an essential instrument on the GGS Polar Plasma Laboratory (POLAR) spacecraft. WIND was successfully launched into orbit on November 1, 1994, and POLAR was successfully launched on February 24, 1996. The channeltrons of both the Vector Electron and Ion Spectrometers (VEIS) of SWE and Douo Deka Electron and Ion Spectrometers (DDEIS) of HYDRA, and the Faraday Cup (FC) detectors of SWE are critical components, which require an optimum operating temperature range of 0°C to 20°C. The thermal performance, data in flight for the first two years for SWE and the first year for HYDRA showed that the operating temperatures of these components are within the optimum range. This paper presents the thermal design, thermal analysis, verification and flight thermal performance of SWE and HYDRA
Keywords :
aerospace testing; astronomical instruments; solar wind; space research; thermal analysis; 0 to 20 C; Faraday Cup detectors; Fast Plasma Analyzer; HYDRA instrument; NASA Global Geospace Science WIND spacecraft; Solar Wind Experiment; Vector Electron and Ion Spectrometers; channeltrons; flight testing; operating temperature range; thermal analysis; thermal design; thermal performance; Detectors; Electrons; Instruments; Laboratories; NASA; Physics; Plasma temperature; Space vehicles; Spectroscopy; Temperature distribution;
Conference_Titel :
Energy Conversion Engineering Conference, 1997. IECEC-97., Proceedings of the 32nd Intersociety
Conference_Location :
Honolulu, HI
Print_ISBN :
0-7803-4515-0
DOI :
10.1109/IECEC.1997.661987
