# CCSDS Data Standards

**The Consultative Committee for Space Data Systems (CCSDS) is a** [**multi-national forum**](https://public.ccsds.org/participation/member_agencies.aspx) **for the development of communications & data systems standards for spaceflight.**

The CCSDS is the de-facto standards body for space systems.  Their [**Blue Books**](https://public.ccsds.org/Publications/BlueBooks.aspx) (recommended standards) specify how to transmit / receive data.

Many of their standards have efficient raw binary standards, like [**Space Data Link Protocol**](https://public.ccsds.org/Pubs/132x0b3.pdf)**,** which specify exactly what specific order and type each field needs to be in the transmitted data.

<figure><img src="/files/4OmnObz6j7nbMqLU0V1b" alt=""><figcaption><p>Space Data Link Protocol Transfer Header</p></figcaption></figure>


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