def conics(elts, et):
    """
    Determine the state (position, velocity) of an orbiting body
    from a set of elliptic, hyperbolic, or parabolic orbital
    elements.

    http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/conics_c.html

    :param elts: Conic elements.
    :type elts: 8-Element Array of floats
    :param et: Input time.
    :type et: float
    :return: State of orbiting body at et.
    :rtype: 6-Element Array of floats
    """
    elts = stypes.toDoubleVector(elts)
    et = ctypes.c_double(et)
    state = stypes.emptyDoubleVector(6)
    libspice.conics_c(elts, et, state)
    return stypes.cVectorToPython(state)