Every time a satellite fires a thruster, its orbit changes. But tracking systems don't see the burn — they see the new orbit elements that result. This gap between observation and inference is the core discipline of SSA maneuver analysis.
Every time a satellite fires a thruster, its orbit changes. But tracking systems don't see the burn — they see the new orbit elements that result. This gap between observation and inference is the core discipline of SSA maneuver analysis.
A maneuver is any intentional application of thrust that changes the satellite's velocity vector — and therefore its orbital elements.
Ground-based radar and optical sensors observe positions — not velocities, not burns. Maneuvers are inferred by comparing old orbital elements to new ones.
The update frequency of element sets directly determines how clearly maneuvers appear in tracking data.
Maneuver analysis is where SSA commentary most commonly goes wrong — pattern recognition tempts over-confident attribution of intent.
Every maneuver analysis starts with the same question: what changed in the orbital elements, and when did the gap occur? Everything beyond that is inference — and should be labelled as such.