KPL/FK

Frame (FK) kernel file for JUICE Spacecraft Io-Nadir Power Optimized 
===============================================================================

   This frames kernel overwrites the JUICE spacecraft frame (JUICE_SPACECRAFT)
   definition from [3] and maps it to the JUICE Io Nadir power optimized
   frame (JUICE_IO_NPO) defined in [4].
   
   This allows the user to use the existing alignments and instrument frame
   definitions in the JUICE frames kernel (see ref [3]) to perform instrument
   specific mission analysis and attitude dependent science opportunity
   identification. Please refer to the section ``Using this frame'' for further
   details.
   
   NOTE THAT BY USING THIS KERNEL, THE JUICE_SPACECRAFT FRAME WILL BE 
   MAPPED TO THE JUICE_IO_NPO FRAME, AND ANY CK PROVIDING ORIENTATION FOR THE
   JUICE_SPACECRAFT FRAME WILL NOT BE USED BY THE APPLICATION SOFTWARE, EVEN
   IF IT IS LOADED IN THE KERNEL POOL.
   
   
Version and Date
-------------------------------------------------------------------------------

   Version 0.1 -- June 04, 2016 -- Marc Costa Sitja, ESAC/ESA

      Updated all NAIF ID codes from -907* to -28* since the JUICE 
      spacecraft NAIF ID has been updated from -907 to -28. 

   Version 0.0 -- May 11, 2016 -- Jorge Diaz del Rio (ODC Space)
   
      Initial version.
      

References
-------------------------------------------------------------------------------

   [1]   "Frames Required Reading"
   
   [2]   "Kernel Pool Required Reading"
   
   [3]   JUICE Frames Definition Kernel (FK), latest version.
   
   [4]   JUICE Science Operations Frames Definition Kernel (FK), latest
         version.

         
Contact Information
-------------------------------------------------------------------------------

   If you have any questions regarding this file contact SPICE support at
   ESAC:

           Marc Costa Sitja
           (+34) 91-8131-457
           mcosta@sciops.esa.int, esa_spice@sciops.esa.int
           
   or NAIF at JPL:
   
           Boris Semenov
           (818) 354-8136
           Boris.Semenov@jpl.nasa.gov
           

Implementation Notes
-------------------------------------------------------------------------------

   This file is used by the SPICE system as follows: programs that make
   use of this frame kernel must "load" the kernel normally during 
   program initialization. Loading the kernel associates the data items 
   with their names in a data structure called the "kernel pool". The 
   routine that loads a kernel into the pool is shown below:
                                                                               
      FORTRAN: (SPICELIB)

         CALL FURNSH ( frame_kernel_name )

      C: (CSPICE)

         furnsh_c ( frame_kernel_name );

      IDL: (ICY)

         cspice_furnsh, frame_kernel_name
         
      MATLAB: (MICE)
      
         cspice_furnsh ( 'frame_kernel_name' )

   This file was created and may be updated with a text editor or word
   processor.
   

Using this frame
-------------------------------------------------------------------------------

   This frames have been implemented to overwrite the JUICE_SPACECRAFT
   frame definition provided in the JUICE Frames Definitions kernel ([3])
   and map it to the JUICE_IO_NPO frame defined in the JUICE
   Science Operations Frames Definitions kernel ([4]).
   
   In order to make use of this frames kernel, this file MUST BE LOADED
   AFTER the JUICE frames definition kernel and the JUICE Science Operations
   Frames Definition kernel.
   
   A metakernel defined to use this file should look like this:
      
         ...
         
              $DATA/fk/juice_v00.tf
              $DATA/fk/juice_ops_v00.tf
              $DATA/fk/juice_sc_io_npo_v00.tf
         
         ...
         
   (*) the example presents version 0.0 of the JUICE frames and
       JUICE Science Operations frames kernels. Newer versions of
       these files will produce the same results. 
   
   NOTE THAT BY USING THIS KERNEL, THE JUICE_SPACECRAFT FRAME WILL BE 
   MAPPED TO THE JUICE_IO_NPO FRAME, AND ANY CK PROVIDING ORIENTATION FOR THE
   JUICE_SPACECRAFT FRAME WILL NOT BE USED BY THE APPLICATION SOFTWARE, EVEN
   IF IT IS LOADED IN THE KERNEL POOL.


  \begindata
  
      FRAME_-28000_CLASS        = 4
      TKFRAME_-28000_RELATIVE   = 'JUICE_IO_NPO'
      TKFRAME_-28000_SPEC       = 'MATRIX'
      TKFRAME_-28000_MATRIX     = ( 1   0   0
                                    0   1   0
                                    0   0   1 )
   
  \begintext