well, following the extremely dangerous and difficult orbitting of the spacestation Kerman 4, and the disasteriffic docking attempt of the fuel-pod module Kerpod 1, the new fuel module, Kerpod 2 is in matching orbit with the Kerman 4 and is slowly catching up. I estimated it will take the Kerpod about 9 days to catch up with the spacestation.
EDIT: After several attmpts at succesfully docking, and one head-on collision, I decided to give up for now, leaving the spacestation and fuel module in orbit.