Synchronous orbit performance of Hughes Aircraft Company solar arrays - update
The synchronous orbit performance of Hughes Aircraft Company solar arrays is presented and compared with the results of ground based predictions for orbital durations of almost 11 years. Performances of the Intelsat IV*, IVA*, and Telesat (Anik) solar arrays are detailed. This paper is an update of the in-orbit performances previously reported in 1976 (1). The in-space performance data indicate solar array power degradation of 16.7 percent for Intelsat IV F-2 after 130 months in orbit, and 13.0 percent for Telesat F-1 after 85 months in orbit. The predicted output of each of these solar arrays is within 2 percent of the actual in-orbit performance of these systems. The Intelsat IV F-2 experienced the 4 August 1972 solar flare. The ability to accurately predict the performance of solar arrays within telemetry accuracy is demonstrated. This ability combines the electrical measurements of a solar array in the ''as built'' configuration, manufacturing consistency and sound computer modeling techniques.
- Research Organization:
- Hughes Aircraft Co., Los Angeles, CA
- OSTI ID:
- 5286642
- Report Number(s):
- CONF-820814-
- Journal Information:
- Proc., Intersoc. Energy Convers. Eng. Conf.; (United States), Journal Name: Proc., Intersoc. Energy Convers. Eng. Conf.; (United States) Vol. 3; ISSN PIECD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
ACCURACY
AEROSPACE INDUSTRY
COMMUNICATIONS
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
CONFIGURATION
DATA ANALYSIS
DATA TRANSMISSION
ELECTRONIC EQUIPMENT
EQUIPMENT
FIELD TESTS
FORECASTING
INDUSTRY
MANUFACTURING
ORBITS
PERFORMANCE
PERFORMANCE TESTING
POWER SUPPLIES
SATELLITES
SIMULATION
SOLAR CELL ARRAYS
SOLAR EQUIPMENT
SPACECRAFT POWER SUPPLIES
SYNCHRONIZATION
TECHNOLOGY ASSESSMENT
TELEMETRY
TESTING
THERMAL DEGRADATION