Almost ready for launch. Having been thoroughly tested, the satellite is closed up and readied for its trip into space.

The SunSpace team will be very active in the first year, monitoring the performance of the satellite and ensuring the maintenance of its orbit, thereafter handing over control to the Satellite Application Centre at Hartbeeshoek.

Says Hendrik Burger, systems engineer in charge of SumbandilaSat: “There are so many factors to take into consideration for a project of this nature. For example, the drop zones for the launch debris – fuel tanks, cylinders, rocket motors – have to be calculated very carefully to avoid any risk of impacting built-up areas. The final stage (third stage rocket) will remain in orbit for a while before burning up on re-entry into the atmosphere.”

If all goes according to plan, SumbandilaSat will take to the sky during a 5-day launch “window” starting on December 20.

Why launch from a Russian submarine?

“Because their launch system is affordable and reliable. In this instance the Russian navy is providing a service for the Makeyev State Rocket Centre. They’re very professional... they know what they’re doing. That said, we’re pushing them in terms of the satellite release altitude of 500 km. They also had to adapt the submarine’s launch silo to accommodate our satellite.