|Units or mass||3U|
|Status||not launched, expected in 2023|
|Organisation||Warsaw University of Technology|
|Entity||Academic / Education|
Demonstrating orbit control with propulsion system and educational mission.
The primary mission experiment is a propulsion system for controlled orbit traverse.
PW-Sat3 mission will be equipped with KP Labs Antelope on-board computer and Oryx modular flight software.
A cold gas thruster is being designed to achieve the demanded circular orbit. It was decided to apply one nozzle for impulse generation in desired direction. For this operation, and to stabilize the satellite during and after the orbital maneuvers ADCS (altitude determination and control system) with reaction wheels will be in use. The propulsion system is a cold gas thruster with butane as a propellant and industrial valves, with no space heritage, are considered to be applied. The mission plan includes preheating the butane and use of heating coil inside which the propellant will be transferred to the nozzle.
Sail deployed, but degraded just after deployment - major damages within a week and slow degradation within the next few weeks. The reason isn't confirmed yet, but leading hypothesis is that temperature gradient between sail foil and arms leads to tension and breaking the foil.
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