To begin with, we wanted to thank all of you who received signal from our satellite, everyone who scheduled observations on SatNOGS network and of course those who was able to receive and decode images from our satellite. We see all of you. And it’s amazing to be able to share this transmission and data with you.
After one and a half month we have been regularly checking out satellite and we wanted to share with you that everything is working well. We were able to stabilize rotation and orientate our satellite with magnetorquers.
Geoscan with supporting university see our mission as training and education platform in amateur space radio service for our students and local amateurs. And of course to be as open with radio amateur community as possible. So after we saw many of you asking us about images transmission we decided to publish simple C++ source code for you to be able to decode our packets with images. Also we are working on image beacon. Which will shoot and translate one image a day over Europe, USA and Japan.
Also we working on transmitting in X-band. Soon we would need your help in receiving.
We will post here further information about our photo beacon and x-band transmitter plus updates on frequency coordination which is still in progress.
Thanks for the update and gitlab link. I don’t see the source code there though, just binary object file. You mentioned publishing the C++ source. Did I miss it? Also, if you could add a license, that would be great, so people would know the terms they are using the software under. The Libre Space Foundation generally uses the GPLv3 license, which I recommend.
We sent our request prior to the launch and got response that IARU can’t coordinate our frequency because we are company. Although we saw many examples of companies getting their frequencies coordinated. We have educational license, educational mission, we working with local students and amateurs, open to the radio amateur community and follow no pecuniary interest what so ever. This mission is supported in educational mission in amateur space service with local university which will try to send coordination request as soon as possible.
This looks more like our general telemetry beacon. Here we shared format of this message.
Example of an input file you can find on github with parser source code. File called “frames.bin”
You have to cut off first five bytes of every packet and merge them in one big frame. These five bytes might be cut off beforehand on demodulation stage. Then packages would have usable format. (AX.25, image etc.)
@geoscan Congrats on a healthy satellite! I tried receiving the transmission over the US but I got nothing. However I did get some strong tlm packets on the frequency… is it possible to do an image dump over the US? Thank you!!
