KPL/FK EARTH_FIXED/IAU_EARTH Frame Connection Kernel for New Norcia ============================================================ Updated: 2004 March 22 01:03:00 PDT (NJB) Descriptive comments were added. Creation date: 2003 June 24 04:22:00 PDT Created by: Nat Bachman (JPL/NAIF) This kernel associates the IAU_EARTH frame with the EARTH_FIXED reference frame alias. Loading this kernel together with a kernel whose data are relative to the EARTH_FIXED frame (for example, an SPK or topocentric frame kernel for tracking stations) allows the SPICE system to treat that kernel's data as though they were relative to the IAU_EARTH frame. This kernel normally should be loaded together with a text PCK file providing earth rotation data. For high-accuracy work, the ITRF93 frame should be used rather than the IAU_EARTH frame, and the kernel EARTHFIXEDITRF93.TF should be used in place of this one to associate the alias EARTH_FIXED with the ITRF93 frame. \begindata TKFRAME_EARTH_FIXED_RELATIVE = 'IAU_EARTH' TKFRAME_EARTH_FIXED_SPEC = 'MATRIX' TKFRAME_EARTH_FIXED_MATRIX = ( 1 0 0 0 1 0 0 0 1 ) \begintext