System and Method Suitable for Controlling a Spacecraft Orbiting Between a Celestial Body and Moon

A spacecraft control method, comprising:

• receiving data indicative of measurements of a sequence of positions of the spacecraft;
• generating, based on the received data, a position measurement of the spacecraft and a covariance of the position measurement;
• based on the position measurement and the covariance of the position measurement, estimating a mean and a covariance of a state of the spacecraft using a probabilistic filter, wherein the state of the spacecraft includes a position and a velocity of the spacecraft;
• determining a mean targeted state of the spacecraft using an unscented transform (UT) on the mean and the covariance of the state of the spacecraft;
• determining control commands that steer the spacecraft from the mean targeted state to a reference state of the spacecraft, wherein the reference state includes a crossing point where a desired trajectory of the spacecraft and xz-plane intersect;
• and
• controlling one or more actuators of the spacecraft based on the control commands to track the desired trajectory.

A non-transitory computer-readable storage medium embodied thereon a program executable by a processor for performing a spacecraft control method, spacecraft control method comprising:

• receiving data indicative of measurements of a sequence of positions of the spacecraft;
• generating, based on the received data, a position measurement of the spacecraft and a covariance of the position measurement;
• based on the position measurement and the covariance of the position measurement, estimating a mean and a covariance of a state of the spacecraft using a probabilistic filter, wherein the state of the spacecraft includes a position and a velocity of the spacecraft;
• determining a mean targeted state of the spacecraft using an unscented transform (UT) on the mean and the covariance of the state of the spacecraft;
• determining control commands that steer the spacecraft from the mean targeted state to a reference state of the spacecraft, wherein the reference state includes a crossing point where a desired trajectory of the spacecraft and xz-plane intersect;
• and
• controlling one or more actuators of the spacecraft based on the control commands to track the desired trajectory.