Almanac of Neural Network Models

A method for autonomous neural network navigation of a spacecraft, the method comprising:

• performing autonomous navigational steps via a computer onboard the spacecraft, the steps comprising:
• reading neural network model parameters from an almanac containing at least one neural network model, wherein each neural network model is valid for an epoch corresponding to a portion of a trajectory;
• determining a current navigation state of the spacecraft;
• determining a current target epoch for the spacecraft based on the current navigation state;
• and
• executing the neural network model corresponding to the current target epoch to provide one or more thrust commands for the spacecraft.

A computer program product for autonomous neural network navigation of a spacecraft, the computer program product comprising a computer readable storage medium having computer readable instructions stored therein, wherein the computer readable instructions, when executed on a computing device, causes the computing device to:

• read neural network model parameters from an almanac containing at least one neural network model, wherein each neural network model is valid for an epoch corresponding to a portion of a trajectory;
• determine a current navigation state of the spacecraft;
• determine a current target epoch for the spacecraft based on the current navigation state;
• and
• execute the neural network model corresponding to the current target epoch to provide one or more thrust commands for the spacecraft.