For anyone interested, San Jose University with NASA Ames is having
TechEdSat deployed from the ISS Thursday at 910AM PDT. The satellite will
start transmitting 40 minutes after deployment. They are asking for
telemetry reports to be sent to:
Hello all,
There will be a laser ranging experiment this weekend from Maui. Both
satellites have retroreflectors all over. Part of the experiment is to
pulse a laser at the satellites at a high rate in an attempt to measure
the spin rate. The results will be compared with the student MEMS
Hello all,
For anyone who is trying to analyze the sensor data, I discovered I put
in the wrong information about the magnetometers. The values are not
counts but measurements in uTesla.
More info will be posted such as sensor locations and magnetometer
orientation. I just need to get the CAD
Castor is running the same power. I think the issue is the instruments
mounted to the shells are interfering with the transmission. I was
given permission to write up a couple articles about the satellites.
I'll start that and push them for release and to the AMSAT journals.
Ivan
On Aug 1,
AS usual we are catching up. We are planning to work on the FX25
software tonight on some new hardware so we can release schematics and code.
Ivan
Jim Heck wrote:
Hi Folks,
Does anyone know if these sats are sending FX.25 yet? I havnt found much on
the
web about FX.25, but it sounds
Here are the first element I received.
1 9U 09211.72372625 -.00133684 0-0 -72886-3 0 6
2 9 051.6395 083.2739 0005969 036.5365 359.8264 15.79152475000211
Ivan
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1 9U 09211.72373843 -.02622722 0-0 -14293-1 0 3
2 9 051.6372 083.2754 0005819 029.8235 006.8153 15.7927317658
1 9U 09211.72373843 .00571633 0-0 30100-2 0 9
2 9
Anyone who hears any of the satellites, let me know and send me any
telemetry.
Ivan
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Hello all,
Thanks to Henk for capturing data from Pollux. He heard Castor/KD4HBO-1
but not decode.
Current surface temperature is ranging from 6 to 9C. Interior
temperature is ranging from -3 to -1C. It looks like all high school
MEMS experiment payloads are functioning. Some of the data
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
The hemispheres are about 1/2 inch thick solid aluminum. It's built to
be heavy.
Ivan
Joe wrote:
Pretty cool,
But Ok I see what is all in this thing, but holy cow,,, what is in it
that makes it weigh 140 POUNDS!!! a 19 sphere, wow!
Joe WB9SBD
g7...@g7iii.net wrote:
Hi Joe,
Sorry, deployment is Thursday. A standard AX.25 TNC will work. FX.25
wraps error correction data around the packet. I'll get info on the FX25
decoder up real soon.
Ivan
Nigel G8IFF/W8IFF wrote:
OK, so presumably a standard AX25 TNC in kiss or RAW data mode and FX25
error correcting
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