A French microwave team will be active via QO-100 from 4-20 June. They will sign TK21SAT from JN42LP.
Beside satellite they will be QRV from 50MHz to 24GHz, using SSB and DATV modes (TK5SHF callsign)
They migh use other calls and operate from the rare JN43 square.
Source: F5UII tweet