ssapy_toolkit.Coordinates.v_from_r

ssapy_toolkit.Coordinates.v_from_r(r: ndarray, t: ndarray) → ndarray

Calculate velocity from position using numerical differentiation.

Uses centered differences for interior points and one-sided differences at the endpoints.

Parameters:

• r (np.ndarray) – Position array of shape (N, 3) in meters.

• t (np.ndarray or Time-like) – Time array corresponding to the positions.

Returns:

Velocity array of shape (N, 3) in meters per second.

Return type:

np.ndarray