Hi Simon,
Thank you for your reply.
Indeed, the ID is a little odd here.
Formerly, SatNOGS assigned 40968 to Bisonsat.
However it turned out that this didn’t fit to Bisonsat, but 40974 (actually the ID for Sinod-D 1) does!
Bisonsat and Sinod-D 1 were launched on the same rocket, so maybe that’s why their signals were mixed up.