NIST recognizes the importance of the infrastructure that provides positioning, timing, and navigation (PNT) information to the scientific knowledge, economy, and security of the Nation. This infrastructure consists of three parts: the space segment, the ground segment, and the users of PNT.
NIST Interagency Report (IR) 8401, Satellite Ground Segment: Applying the Cybersecurity Framework to Satellite Command and Control, applies the NIST Cybersecurity Framework to the ground segment of space operations. The document defines the ground segment, outlines its responsibilities, and presents a mapping to relevant information references. The Profile defined in this report provides a flexible framework for managing risk and addresses the goals of Space Policy Directive 5 (SPD-5) for securing space.