The Space Communications and Navigation (SCaN) Program was formed about three ago by NASA in order to create an integrated space communications and tracking capability for the Agency. Previously, the three major space communications networks were managed largely independently with relatively low levels of reuse of developments and varying levels of common approaches, processes, tools, and standards utilized across them. This network specific approach has served the Agency well for nearly fifty years; however, as NASA moves into the next decade of space operation, the Agency is striving to do more within a constrained budget. In order to achieve the vision for an integrated network for NASA missions, a team was chartered in March 2008 to develop an integrated architecture roadmap. The architecture developed provides for a scalable capability which provides: an integrated service-based architecture; space internetworking throughout the solar system; International interoperability; assured safety and security of missions; and significant increases in bandwidth. The architecture makes extensive use of new technologies such as optical communications, Delay Tolerant Networking, software defined radios as well as utilization of extended high rate Ka-band communications and international standards. A logical roadmap was developed to implement the architecture with numerous key Architecture Decision Points to ensure that new technologies are mature enough to phase into operations, as well as to select appropriate capacities to meet mission needs. This paper will provide an overview of the architecture, its key attributes, and the roadmap to implement the new vision.

The NASA Integrated Network for Space Communications and Navigation (SCaN) has been in the definition phase since 2010. It is intended to integrate NASA's three existing network elements, i.e., the Space Network, Near Earth Network, and Deep Space Network, into a single network. In addition to the technical merits, the primary purpose of the Integrated Network is to achieve a level of operating cost efficiency significantly higher than it is today. Salient features of the Integrated Network include (a) a central system element that performs service management functions and user mission interfaces for service requests; (b) a set of common service execution equipment deployed at the all stations that provides return, forward, and radiometric data processing and delivery capabilities; (c) the network monitor and control operations for the entire integrated network are conducted remotely and centrally at a prime-shift site and rotating among three sites globally (a followthe-sun approach); (d) the common network monitor and control software deployed at all three network elements that supports the follow-the-sun operations.

CCSDS Engineering Steering Group 2 VariousThe Consultative Committee for Space Data Systems (CCSDS) is an international organization supported by 39 space agencies and about 145 companies. CCSDS was formed in 1982 by the major space agencies of the world to provide a forum for solving common problems in the development and operations of space data systems. It has currently 137 active Publications for data and communications systems to promote interoperability and cross support among cooperating space agencies to reduce operations costs by sharing facilities and to reduce the cost to the various agencies of performing common data functions, by eliminating unjustified project-unique design and development. CCSDS also functions as an ISO Standards Committee, Technical Committee 20 Subcommmittee 13 (TC20=SC13), Space Data and Information Transfer Systems. In this capacity, CCSDS/ISO-TC20-SC13 represents 20 nations. In order to enable the next generation of spaceflight missions, CCSDS is aiming at technology evolution and innovation through the process of developing, validating, maintaining and promoting a body of unique space data systems standards, focusing on interoperability of space systems and cross-support between space organisations. In this paper we describe the different technical areas, its strategic goals and a general overview of the currently under development and future most innovative standards .

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