CCSDS Protocol Viewer

A quick reference for engineers working on a layered space link: the key information of the CCSDS protocols in one place, instead of a stack of open PDFs. Frame diagrams, a frame builder and a frame decoder, written from the CCSDS Blue Books.

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Protocols

• Space Packet Protocol (CCSDS 133.0-B-2)
• TM Space Data Link Protocol (CCSDS 132.0-B-3)
• TC Space Data Link Protocol (CCSDS 232.0-B-4)
• Space Data Link Security Protocol, SDLS (CCSDS 355.0-B-2)
• SDLS Extended Procedures (CCSDS 355.1-B-1)

Features

• Frame diagrams and a reference page for each field, with links to the Blue Book clause it comes from
• Frame Builder: fill in the fields of a Space Packet or TM or TC Transfer Frame and get its bits and hex, with lengths and the Frame Error Control Field computed
• Frame Decoder: paste raw hex to read every field, with consistency checks against the Blue Book, including the CRC
• SDLS as an option of TM and TC frames: Security Header and Trailer layout, and what each service covers
• Mission profiles: define managed parameters once, and export or import them as JSON
• Search across all fields, abbreviations and special values such as 0x7FE
• A printable one-page cheat sheet per protocol

Source code on GitHub, under the Apache 2.0 license. This is a summary for quick reference: the Blue Books are normative.