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NASA Procedures and Guidelines

This Document is Obsolete and Is No Longer Used.
Check the NODIS Library to access the current version:
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NPR 7120.17
Effective Date: June 27, 2023
Cancellation Date: June 28, 2023
Responsible Office: KA

NASA Spacecraft Conjunction Analysis and Collision Avoidance for Space Environment Protection


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This Document is Obsolete and Is No Longer Used.
Check the NODIS Library to access the current version:
http://nodis3.gsfc.nasa.gov