ISO 22646:2005/Amd 1:2015

Overview

ISO 22646:2005/Amd 1:2015 is an amendment to the international standard governing space data and information transfer systems through the space packet protocol. Developed by the Consultative Committee for Space Data Systems (CCSDS) and maintained by ISO/TC 20/SC 13, this amendment updates the original 2005 standard with refinements to technical terminology, references, and protocol specifications. The document ensures consistency and interoperability for space packet communications essential for satellite missions, spacecraft operations, and interplanetary data exchanges.

This standard aligns with international collaboration efforts in space communications and supports reliable, standardized packet transfer methods to facilitate robust data handling in challenging space environments.

Key Topics

• Space Packet Protocol Updates
  The amendment introduces clarifications and adjustments to the Application Process Identifier (APID) usage-highlighting the transition from original definitions to incorporating the concept of APID qualifiers and Path IDs for better addressing of onboard processes.

• Revised References
  Key references, such as those related to Space Link Identifiers, have been updated to current registry sources like the Space Assigned Number Authority (SANA) to maintain accurate and authoritative numbering schemes.

• Protocol Specification Enhancements
  Additional explanatory paragraphs and renumbering of clauses improve the document's clarity, specifying the unique identification capability of APIDs for individual onboard application processes, which is critical for multiplexing data streams in spacecraft communication systems.

• Collaborative Development Framework
  The standard reflects the cooperative work between ISO and CCSDS, with involvement from national and international experts, ensuring the document reflects consensus-based, globally accepted spacecraft communication practices.

Applications

ISO 22646:2005/Amd 1:2015 is vital for organizations and entities involved in:

• Satellite Communication Operations
  Enabling standardized packet data handling to ensure reliable transmission, reception, and processing of telemetry, telecommand, and onboard data management in satellites.

• Space Mission Control Systems
  Assisting ground stations and mission control centers by providing clear protocols for managing space data packets, facilitating efficient spacecraft monitoring and control.

• Spacecraft Data Systems Design
  Guiding engineers and system architects in implementing interoperable onboard communication protocols that comply with internationally recognized standards.

• Interplanetary Data Transfer
  Supporting missions involving deep-space probes where robust, well-defined data packet standards are essential for long-distance, delay-tolerant communication.

By adhering to this amendment, space agencies and contractors can enhance mission success rates through improved data integrity, interoperability, and operational efficiency.

Related Standards

• CCSDS 133.0-B-1 Space Packet Protocol
  The base document which ISO 22646 amends, defining the original space packet structure and usage for space data transfer.

• CCSDS 135.0-B-1 Space Link Identifiers
  A complementary standard detailing the identification codes used in space data systems, updated by this amendment to refer to SANA registries.

• ISO/IEC Directives, Part 2
  Governs the drafting and publication processes for international standards, ensuring consistency and quality in technical documentation like ISO 22646.

• Space Data Link Protocol Specifications
  Earlier standards referenced in this amendment which clarify the evolution of protocol concepts relevant to space packet management.

Adoption of ISO 22646:2005/Amd 1:2015 ensures that space data communication systems maintain compliance with current best practices and technological advancements in space packet protocols, promoting interoperability across international space missions and technology providers.