More infos about it : https://space.skyrocket.de/doc_sdat/swiatowid.htm
The launch is reported to next year.
And more important, test files, and gnuradio flow to decode pictures :
https://drive.google.com/drive/folders/1InfC9h5D34tY5pQpmVkT5LEM7IGYM1fD
I will try to have more infos …