poliastro2.core.twobody.mean_elements

Functions

get_mean_elements(body[, epoch])

Get the ecliptic mean elements of a solar system body.
poliastro2.core.twobody.mean_elements.get_mean_elements(body, epoch=<Time object: scale='tt' format='jyear_str' value=J2000.000>)

Get the ecliptic mean elements of a solar system body.

Parameters:

  • body (SolarSystemPlanet) – The celestial body for which to obtain mean elements.

  • epoch (astropy.time.Time, optional) – The epoch at which to compute the mean elements, by default J2000.

Returns:

The state defined by position and velocity vectors of the body at the given epoch.

Return type:

RVState

Raises:

ValueError – If the body is not an instance of poliastro.bodies.SolarSystemPlanet.