SKYNET SGEMP Test Program: The SKYNET Satellite as Test Object.
Abstract
The SKYNET I communications satellite was launched into synchronous orbit in 1969 as the keystone element of the United Kingdom SKYNET communications network. In 1974, the residual SKYNET I qualification model satellite became the keystone 'real satellite' analytical and test specimen in the DNA-sponsored satellite SGEMP investigation program. Ford Aerospace provided the satellite, plus detailed information on the design and fabrication and assembly methods to co-contractors IRT, Mission Research Corporation (MRC), the Army Harry Diamond Laboratories (HDL), and Pulsar Associates. Such details were used in a three-pronged effort: (1) IRT used the design details to establish computer code models of SKYNET, and these codes were used to predict SKYNET's SGEMP response; (2) HDL conducted current-injection tests to establish the structural and cable response characteristics; and (3) low-energy x-ray irradiation of the satellite was conducted by MRC and IRT to: (a) validate the assumption that 'tin-can' models can be effectively used to represent a real satellite for establishing satellite response; (b) demonstrate that the essential satellite response measurements can be made on an isolated satellite within a reasonable vacuum chamber; and (c) obtain the electromagnetic response of the satellite resulting from spacecraft charging. This latter investigation included both the spacecraft charging/discharging phenomenon alone and synergistically with x-ray radiation. This report describes the analytical/test object, the SKYNET I satellite.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1977
- Accession Number
- ADA054359
Entities
People
- Donald R. Mcmorrow