Coordinates module¶

$digraph { "poliastro.coordinates" -> "body_centered_to_icrs", "icrs_to_body_centered", "inertial_body_centered_to_pqw", "transform" ; }$

Functions related to coordinate systems and transformations.

This module complements astropy.coordinates.

poliastro.coordinates.inertial_body_centered_to_pqw(r, v, source_body)¶

Converts position and velocity from inertial body-centered frame to perifocal frame.

Parameters:	r (Quantity) – Position vector in a inertial body-centered reference frame. v (Quantity) – Velocity vector in a inertial body-centered reference frame. source_body (Body) – Source body.
Returns:	r_pqw, v_pqw – Position and velocity vectors in ICRS.
Return type:	tuple (Quantity)