You can keep track of energy and angular momentum. Both are conserved in free-fall, so only thrust is changing them. If thrust is small enough the (ideal) orbit is nearly circular, so you can relate energy and angular momentum to orbital height, speed and so on, which is then needed to determine the effect of thrust.ScramjetCCO said:
Sample simulated view of Dawn spacecraft retrothrusting so as to spiral in closer to Ceres, as anorlunda mentioned:anorlunda said:
Continuous thrust orbit change is the process of using a spacecraft's engines to gradually change its trajectory in space. This can be done to adjust the spacecraft's orbit around a celestial body or to move the spacecraft to a different location in space.
Continuous thrust orbit change is important because it allows for precise and controlled changes in a spacecraft's trajectory, which is necessary for successful missions. It also reduces the amount of fuel needed for orbit changes compared to traditional methods, making it more cost-effective.
Continuous thrust orbit change works by firing a spacecraft's engines in a specific direction for a prolonged period of time. This creates a small but continuous force, which gradually changes the spacecraft's velocity and direction. By carefully calculating and timing these engine firings, the spacecraft's trajectory can be altered as desired.
One of the main advantages of continuous thrust orbit change is its efficiency. By using a small, continuous force, less fuel is needed compared to traditional methods of orbit change, which often involve short bursts of high thrust. This can greatly extend the lifespan of a spacecraft's fuel supply and allow for longer missions. Continuous thrust orbit change also allows for more precise and controlled changes in trajectory.
One of the main challenges of continuous thrust orbit change is the length of time it takes to achieve significant changes in trajectory. This can require patience and careful planning from mission controllers. Additionally, continuous thrust orbit change can be affected by external forces, such as gravitational pulls from other celestial bodies, which must be taken into account during calculations and maneuvers.