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SPACETRACKNational Space Surveillance Control Center
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The January 1961 DoD-NASA agreement, which provided for DoD disseminating catalog data to NASA, came after the Joint Chiefs of Staff reneged somewhat on the original 1959 support agreement by deciding to no longer share SPACETRACK data with NASA.
After extensive rebuilding, the FPS-85 radar began SPACETRACK operations on January 29, 1969, and almost immediately, it autonomously discovered many new, small objects (usually debris related to launches from years past) for addition to the catalog.
Although deployed to provide early warning of a Soviet nuclear missile attack against North America by detecting missiles in their boost phase, it soon became obvious that DSP also supplied more timely data to SPACETRACK.