System for placing a satellite in working orbit

A system for positioning at least one satellite in working orbit, wherein the system for positioning satellites in working orbit comprises:

• a first attachment device configured to attach a first satellite to the system for positioning satellites in working orbit;
• a main propulsion device with solid propulsion comprising a plurality of parallel solid-propellant cartridges;
• a secondary propulsion device which is re-ignitable;
• at least one position sensor configured to measure the position of said system;
• a monitoring unit connected to said at least one position sensor and which is configured to control a firing of the cartridges of the main propulsion device to move said system from a transfer orbit to a working orbit of the first satellite, said monitoring unit being further configured to control an opening of the first attachment device to separate said system from the first satellite, and said monitoring unit being configured to control an ignition of the secondary propulsion device to monitor an orientation of said system,
• wherein the monitoring unit is configured to control a sequential ignition of the plurality of cartridges of the main propulsion device.