Packet telecommand standard

A standard to establish uniform requirements for the implementation of spacecraft packet telecommand systems by ESA is presented. The standard establishes a framework and basis for ESA spacecraft telecommand stream data structures, allows spaceborne telecommand systems compatible with ESA ground systems to be implemented, potentially provides high level commonality between spaceborne and ground based telecommand systems, and provides recommendations for a minimum acceptable level of end to end performance for telecommand systems conforming to the standard. The standard applies to all spacecraft using the ESA ground network standard facilities and services.