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Definition

Critical Design Review

CDR

A phase gate review that evaluates the detailed design to ensure it satisfies the requirements and can proceed to fabrication, manufacturing, or coding. Typically occurs at the end of Phase C.

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Related terms

Concept of OperationsConOps

A document describing how a system will be used from the user's perspective. Covers operational scenarios, mission timel...

Controlled Unclassified InformationCUI

Information that requires safeguarding or dissemination controls per law, regulation, or government-wide policy, but is ...

Delta-VΔV

The change in velocity required for an orbital maneuver. A fundamental measure of the propulsive effort needed to transf...

Downlink

Data transmission from a spacecraft to a ground station. Downlink budget analysis determines if the signal is strong eno...

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