KPL/FK


JUNO Phi O Frames Kernel
-------------------------------------------------------------------------------

   This an FK for Juno dynamic frames that define the Phi O frames for
   the moons Io, Europa, Ganymede, and Callisto.


Version and Date
-------------------------------------------------------------------------------

   Version 1.0 -- May 26, 2021 -- Matt Barnes, NAIF

      Initial version; includes the JUNO_<moon>_PHI_O frames for frame = 
      IO, EUROPA, GANYMEDE, CALLISTO with IDs -61901 ... -61904.


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

   1. ``Frames Required Reading''

   2. ``Kernel Pool Required Reading''

   3. E-mail ``GPhiO frame kernel'' from Jamey R. Szalay, Princeton,
      from May 25, 2021


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

   Matt Barnes, NAIF/JPL, (818)-354-5942, matthew.j.barnes@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. The SPICE routine FURNSH loads a kernel file
   into the pool as shown below.

      CALL FURNSH ( 'frame_kernel_name; )    -- FORTRAN
      furnsh_c ( "frame_kernel_name" );      -- C
      cspice_furnsh, frame_kernel_name       -- IDL
      cspice_furnsh( 'frame_kernel_name' )   -- MATLAB

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


Frames Definitions
-------------------------------------------------------------------------------

   This FK currently defines the following dynamic frames of use to Juno
   (with IDs in the -61901 ... -61904 range):

      JUNO_IO_PHI_O (-61901), per [3]:

         -- +Z is aligned with the Jupiter pole (primary axis)
         -- +Y is in the direction of the Io-Jupiter vector (secondary axis)
         -- centered on Io

      JUNO_EUROPA_PHI_O (-61902), per [3]:

         -- +Z is aligned with the Jupiter pole (primary axis)
         -- +Y is in the direction of the Europa-Jupiter vector (secondary axis)
         -- centered on Europa

      JUNO_GANYMEDE_PHI_O (-61903), per [3]:

         -- +Z is aligned with the Jupiter pole (primary axis)
         -- +Y is in the direction of the Ganymede-Jupiter vector (secondary axis)
         -- centered on Ganymede

      JUNO_CALLISTO_PHI_O (-61904), per [3]:

         -- +Z is aligned with the Jupiter pole (primary axis)
         -- +Y is in the direction of the Callisto-Jupiter vector (secondary axis)
         -- centered on Callisto


   \begindata

      FRAME_JUNO_IO_PHI_O           =  -61901
      FRAME_-61901_NAME             = 'JUNO_IO_PHI_O'
      FRAME_-61901_CLASS            =  5
      FRAME_-61901_CLASS_ID         =  -61901
      FRAME_-61901_CENTER           =  501
      FRAME_-61901_RELATIVE         = 'J2000'
      FRAME_-61901_DEF_STYLE        = 'PARAMETERIZED'
      FRAME_-61901_FAMILY           = 'TWO-VECTOR'
      FRAME_-61901_PRI_AXIS         = 'Z'
      FRAME_-61901_PRI_VECTOR_DEF   = 'CONSTANT'
      FRAME_-61901_PRI_FRAME        = 'IAU_JUPITER'
      FRAME_-61901_PRI_SPEC         = 'RECTANGULAR'
      FRAME_-61901_PRI_VECTOR       = ( 0, 0, 1 )
      FRAME_-61901_SEC_AXIS         = 'Y'
      FRAME_-61901_SEC_VECTOR_DEF   = 'OBSERVER_TARGET_POSITION'
      FRAME_-61901_SEC_OBSERVER     = 'IO'
      FRAME_-61901_SEC_TARGET       = 'JUPITER'
      FRAME_-61901_SEC_ABCORR       = 'NONE'

      FRAME_JUNO_EUROPA_PHI_O       =  -61902
      FRAME_-61902_NAME             = 'JUNO_EUROPA_PHI_O'
      FRAME_-61902_CLASS            =  5
      FRAME_-61902_CLASS_ID         =  -61902
      FRAME_-61902_CENTER           =  502
      FRAME_-61902_RELATIVE         = 'J2000'
      FRAME_-61902_DEF_STYLE        = 'PARAMETERIZED'
      FRAME_-61902_FAMILY           = 'TWO-VECTOR'
      FRAME_-61902_PRI_AXIS         = 'Z'
      FRAME_-61902_PRI_VECTOR_DEF   = 'CONSTANT'
      FRAME_-61902_PRI_FRAME        = 'IAU_JUPITER'
      FRAME_-61902_PRI_SPEC         = 'RECTANGULAR'
      FRAME_-61902_PRI_VECTOR       = ( 0, 0, 1 )
      FRAME_-61902_SEC_AXIS         = 'Y'
      FRAME_-61902_SEC_VECTOR_DEF   = 'OBSERVER_TARGET_POSITION'
      FRAME_-61902_SEC_OBSERVER     = 'EUROPA'
      FRAME_-61902_SEC_TARGET       = 'JUPITER'
      FRAME_-61902_SEC_ABCORR       = 'NONE'

      FRAME_JUNO_GANYMEDE_PHI_O     =  -61903
      FRAME_-61903_NAME             = 'JUNO_GANYMEDE_PHI_O'
      FRAME_-61903_CLASS            =  5
      FRAME_-61903_CLASS_ID         =  -61903
      FRAME_-61903_CENTER           =  503
      FRAME_-61903_RELATIVE         = 'J2000'
      FRAME_-61903_DEF_STYLE        = 'PARAMETERIZED'
      FRAME_-61903_FAMILY           = 'TWO-VECTOR'
      FRAME_-61903_PRI_AXIS         = 'Z'
      FRAME_-61903_PRI_VECTOR_DEF   = 'CONSTANT'
      FRAME_-61903_PRI_FRAME        = 'IAU_JUPITER'
      FRAME_-61903_PRI_SPEC         = 'RECTANGULAR'
      FRAME_-61903_PRI_VECTOR       = ( 0, 0, 1 )
      FRAME_-61903_SEC_AXIS         = 'Y'
      FRAME_-61903_SEC_VECTOR_DEF   = 'OBSERVER_TARGET_POSITION'
      FRAME_-61903_SEC_OBSERVER     = 'GANYMEDE'
      FRAME_-61903_SEC_TARGET       = 'JUPITER'
      FRAME_-61903_SEC_ABCORR       = 'NONE'

      FRAME_JUNO_CALLISTO_PHI_O     =  -61904
      FRAME_-61904_NAME             = 'JUNO_CALLISTO_PHI_O'
      FRAME_-61904_CLASS            =  5
      FRAME_-61904_CLASS_ID         =  -61904
      FRAME_-61904_CENTER           =  504
      FRAME_-61904_RELATIVE         = 'J2000'
      FRAME_-61904_DEF_STYLE        = 'PARAMETERIZED'
      FRAME_-61904_FAMILY           = 'TWO-VECTOR'
      FRAME_-61904_PRI_AXIS         = 'Z'
      FRAME_-61904_PRI_VECTOR_DEF   = 'CONSTANT'
      FRAME_-61904_PRI_FRAME        = 'IAU_JUPITER'
      FRAME_-61904_PRI_SPEC         = 'RECTANGULAR'
      FRAME_-61904_PRI_VECTOR       = ( 0, 0, 1 )
      FRAME_-61904_SEC_AXIS         = 'Y'
      FRAME_-61904_SEC_VECTOR_DEF   = 'OBSERVER_TARGET_POSITION'
      FRAME_-61904_SEC_OBSERVER     = 'CALLISTO'
      FRAME_-61904_SEC_TARGET       = 'JUPITER'
      FRAME_-61904_SEC_ABCORR       = 'NONE'

   \begintext

End of FK.