def sce2c(sc, et):
    """
    Convert ephemeris seconds past J2000 (ET) to continuous encoded
    spacecraft clock "ticks".  Non-integral tick values may be
    returned.

    http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/sce2c_c.html

    :param sc: NAIF spacecraft ID code.
    :type sc: int
    :param et: Ephemeris time, seconds past J2000.
    :type et: float
    :return:
            SCLK, encoded as ticks since spacecraft clock start.
            sclkdp need not be integral.
    :rtype: float
    """
    sc = ctypes.c_int(sc)
    et = ctypes.c_double(et)
    sclkdp = ctypes.c_double()
    libspice.sce2c_c(sc, et, ctypes.byref(sclkdp))
    return sclkdp.value
Convert ephemeris seconds past J2000 (ET) to continuous encoded
    spacecraft clock "ticks".  Non-integral tick values may be
    returned.

    http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/sce2c_c.html

    :param sc: NAIF spacecraft ID code.
    :type sc: int
    :param et: Ephemeris time, seconds past J2000.
    :type et: float
    :return:
            SCLK, encoded as ticks since spacecraft clock start.
            sclkdp need not be integral.
    :rtype: float