Hello, my name is Ido, I am a student in the Duchifat/Hoopoe satellite project in the communications team. I am working on a communications solution for our next satellite (Duchifat-3) based on Gnu Radio and a LimeSDR board (TX and RX). The project is at: https://github.com/HelloWorldIL/hoopoeCommSolution if anybody wants to take a look. I have been in contact with Daniel the creator of gr-satellites and Manolis Surligas who is the maintainer of gr-satnogs, and I am working on a receiver based their design (BPSK@9k6 AX.25). We are also using Gnu Radio with LimeSDR for TX (AFSK@1k2 AX.25). The goal of this project is for a self-contained and automatic communication solution for our satellite, for this, I have also created a Doppler correction script based on SkyField library (since pyEphem is deprecated), and a rotator controller based on rotctl using pipes (instead of sockets in satnogs-client, seems more robust). I am still working on an automation script at the moment. Just for context, our programming team created a ground station manager software that generates the packets for us and receives the data for farther processing.
After taking a look at the amazing Ground Station network and the Satnogs project you have created, I have some ideas for shared projects:
Our next satellite (Duchifat-3) has a camera as a payload and is set to launch in June-July of this year. The full resolution image files are rather large for a 9k6 BPSK Downlink (about 2 Mb), and so, even in a perfect pass, we can only download about half of the image file. This is a big problem for us, and so I thought that perhaps we could join forces, and use the Satnogs ground station network to schedule a dump of image data when there is a pass over a ground station in the Satnogs network. This would mean we would be able to download many more images that we would normally be able to with our one ground station.
I would imagine that for a project like this to work, we would need the ability to get satellite passes over ground stations in the satnogs network, does that kind of API already exist?
I would also love to work on a dashboard for our satellite in Satnogs Dashboard, we could also share the downloaded images there!
Let me know what you think of the idea, and if you have any other ideas for shared projects, harnessing the power of a ground station network in a satellite mission would be awesome.