###Make sure that you have the following files downloaded into your Orbit/db directory; if you wish to use this interface to the SPICE library. #Source: http://naif.jpl.nasa.gov/pub/naif/generic_kernels/fk/planets/earth_assoc_itrf93.tf #Defines the ITRF93 coordinate system ITRF93 = earth_assoc_itrf93.tf #Source: http://naif.jpl.nasa.gov/pub/naif/generic_kernels/pck/earth_720101_070426.bpc #Detailed model of the earth EARTHHIGHRES = earth_720101_070426.bpc #Source: http://naif.jpl.nasa.gov/pub/naif/generic_kernels/pck/earth_000101_141029_140808.bpc #Detailed model of earth constantly updated #File name may change based on update EARTHHIGHRESLATEST = earth_000101_160305_151213.bpc #Source: http://naif.jpl.nasa.gov/pub/naif/generic_kernels/pck/pck00010.tpc #Constants for various bodies in the solar system BODYINFO = pck00010.tpc #Source: http://naif.jpl.nasa.gov/pub/naif/generic_kernels/lsk/naif0010.tls #Leap second file LEAPSECONDS = naif0011.tls #Source:http://naif.jpl.nasa.gov/pub/naif/generic_kernels/spk/planets/de432s.bsp #Planetary ephemeris EARTHPOSITION = de432s.bsp #####Definition of ECI TOD coordinate systems EARTHECI_TOD = earth_eci_tod.tf