[amsat-bb] Re: ANDE-2 Deployment
igalysh at cox.net
Wed Jul 29 07:18:52 PDT 2009
The satellite is made mostly of parts from Digikey.
The following processors are flying:
Pollux: 1 - Atmega168, 3 - Atmega168
Castor: 1 - LPC2106, 2 - Atmega168, IGLOO FPGA AGL125, Atmega128
Printed circuit boards from www.pcbexpress.com
When I get a chance, I'll see how much info I can release about the
design and components. They are all commercial parts.
Sensors are gyroscopes from Melexis and Analog Devices. Magnetometer is
the PNI Micro mag 3-axis unit.
I'm preparing for PDR in a few weeks on another satellite program. Once
I get past it, I'll put out more info on the sensors and telemetry.
I also want to write an article on the electronics.
Oh, and the radio transmitter in the satellites are based on this module.
> Hi Bob,
> have any idea as to what the telemetry may consist of?
> And I'm assuming this will be a similar project? measure atmospheric drag?
> Too bad they either wouldn't allow it, or for whatever reason the two
> birds didn't have a ground user capability.
> This would be a perfect test for something off the shelf so to speak,
> no rad hardened stuff. just off the shelf couple hundred bucks of
> something, wouldn't that have been interesting.?
> Joe WB9SBD
> Robert Bruninga wrote:
>> The two ANDE satellites (Castor and Pollux) will be deployed
> >from the Space Shuttle now that it has separated from the ISS.
>> Both satellites will be transmitting on 145.825 MHz. Castor will
>> transmit telemetry every 30 seconds. Pollux every 33 seconds.
>> Both are transmitting 1200 baud AX.25 packet Telemetry.
>> Most of the info is on the website:
>> Other than that, I don't have much detail information since this
>> was built by a different team than our original ANDE project.
>> The amateur payloads were developed by the Amateur Radio Club at
>> the Naval Research Labs and got a ride on the ANDE spheres like
>> we did a few years ago.
>> Bob, WB4APR
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