moonepoch
The term moonepoch refers to a specific point in time used as a reference for measuring lunar orbital parameters. Because the Moon's orbit is not perfectly constant and experiences various perturbations, astronomers need a defined epoch to express its position and velocity accurately. This epoch serves as a fundamental starting point for orbital calculations and predictions.
When describing the Moon's orbit, elements like its semi-major axis, eccentricity, and inclination are often given
Commonly used moonepochs are often associated with specific astronomical events or standard reference frames, such as