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Target Assembly, Horizon Sensor, Spacecraft Checkout Station, INTELSAT VIIIA

National Air and Space Museum

Object Details

Manufacturer
Martin Marietta
Summary
Geostationary communications satellites, once launched and in orbit, need to operate for years with high reliability. To achieve such performance, satellites undergo a rigorous process of testing during manufacture to ensure that each spacecraft component and system can withstand the rigors of launch and the extremes of the space environment.
This artifact--a Horizon Sensor Target Assembly--is a component of the satellite check-out station for Intelsat VIIIA (805) communications spacecraft, built by Lockheed Martin and launched in 1998. The checkout station was a suite of testing devices used to simulate and assess a broad range of spacecraft functions after final assembly. Technicians tested the satellite at the factory and then again at the launch site.
The Horizon Sensor Target Assembly was designed to simulate one such function: The performance of Earth horizon sensors, which helped the spacecraft maintain its orientation during travel to geostationary orbit and then in routine operation. The sensor test assemblies were mounted to the satellite and the discs rotated to simulate the presence of the Earth's horizon.
This artifact was donated by Lockheed Martin to the Museum in 1998.
Credit Line
Gift of Lockheed Martin
Inventory Number
A19980306004
Restrictions & Rights
Usage conditions apply
Type
EQUIPMENT-Test
Materials
Aluminum, Stainless Steel, Glass, Plastic, Steel, Copper, Foam, Synthetic Fabric, Paint, Gold, Adhesive, Paper, Ink, Chrome
Dimensions
3-D (Large Case): 29.8 x 22.5 x 43.8cm (11 3/4 x 8 7/8 x 17 1/4 in.)
3-D (Small Case): 27.9 x 19.1 x 21.6cm (11 x 7 1/2 x 8 1/2 in.)
Country of Origin
United States of America
See more items in
National Air and Space Museum Collection
National Air and Space Museum
Record ID
nasm_A19980306004
Metadata Usage (text)
Not determined
GUID (Link to Original Record)
http://n2t.net/ark:/65665/nv9d2f21686-45ec-4d36-8854-d78fedb40e36

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    Air and Space Museum
There are restrictions for re-using this image. For more information, visit the Smithsonian's Terms of Use page .
International media Interoperability Framework
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more.
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