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Some questions about the spacecraft Cassini~~~~~~~

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ZengLei

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We know that the target of Cassini is SATURN,It's very interesting ~~~~~

I want to know :what kind of RTOS Cassini use?? linux.WincE,UCOS????
What kind of processor it use??? ARM9,DSP,PowerPC or others??

and what frequence of the wave NASA use to keep in touch with Cassini from SATURN????

So ~~as Spirit to MARS????


Are there anyone who work for NASA to solve my problems???

Thanks
 

You don't realy believe that you will get an answer, do you?

D.


Sorry, but I thought that this info was classified up to a point. it seems not, after the answer below...

D.
 

This paper describes the top-level design, and gives the subsystem names, communication frequencies, etc. Those keywords should help you Google for more detailed info.
"An Introduction to the Design of the Cassini Spacecraft"
**broken link removed**

Cassini's main subsystems use IBM 1750A processors running Ada. I think you'll find a variety of other processors in the individual instruments and smaller subsystems. For example, a Harris RTX2010 in MIMI. Remember that these designs were locked down about 15 years ago, and everything has to be radiation tolerant, so you won't find any modern microprocessors.

Here's an old list of space-related frequencies:
http://groups.google.com/group/rec.radio.scanner/browse_thread/thread/87fc68b958630ae3/
 

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    ZengLei

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