General Information About SPICE FRAMES Kernels
==============================================

   In the SPICE system, the FRAMES kernel contains information required
   to define various reference frames specific to a particular mission,
   sources of orientation and origin location information for these
   frames, and inter-connections between these frames and other,
   generic frames supported within the SPICE system. Frequently FKs
   also contain mission-specific NAIF body name to ID mappings.

   The frame definitions information contained in the file can be
   utilized by a collection of subroutines to provide correct
   interpretation for the SPICE data from SP- and C-kernels. These
   subroutines are part of the SPICE library, the principal component
   of the SPICE Toolkit. For information on the SPICE Toolkit
   and/or how to obtain it, please consult SPICE_INST.CAT and
   SOFT.CAT.

   Refer to the FRAMES.REQ document provided with the Toolkit to get
   more information about definition and usage of the frames within
   SPICE system.


Rosetta FK Files
================

   This file describes the contents of the DATA/FK directory of the
   ROSETTA SPICE data set.

   All these FK files are produced manually with information supplied
   by Rosetta teams describing the frames for the spacecraft and its
   science instruments. Some of these FK files (for tracking stations)
   are provided specifically for the Radio Science investigation.

   All FK files (*.TF) contained in this directory are UNIX text files
   with lines terminated by <LF> only.


Rosetta FRAMES Kernels Contained in this Data Set
=================================================

   The following ROSETTA FRAME kernels are provided in this data
   set:

   Rosetta Project FKs:

      ROS_V12.TF
      ROS_V16.TF
      ROS_V17.TF
      ROS_V25.TF
      ROS_V34.TF
      ROS_V37.TF
      ROS_V38.TF                Contain the complete set of frame
                                definitions for the Rosetta orbiter and
                                lander and their science instruments.
                                These kernels also contain NAIF
                                ID/name mappings for the Rosetta
                                instruments and targets (asteroids and
                                comet) and for the target body DSK
                                surfaces. The file with the latest
                                version supersedes all other versions.



   Rosetta Mission Targets FKs:

      ROS_LUTETIA_RSOC_V02.TF
      ROS_LUTETIA_RSOC_V03.TF   Contain the definition of the reference
                                frame for the asteroid Lutetia, as
                                described by L. Jorda and J.-B. Vincent
                                (see documentation in the kernel). The
                                file with the latest version supersedes
                                all other versions.



   ESA Generic Dynamic Frames FKs:

      RSSD0001.TF
      RSSD0002.TF               Contain definitions of a few generic
                                dynamic frames used by ESA planetary
                                missions. The file with the latest
                                version supersedes all other versions.


   Grounds Station FKs:

      EARTH_TOPO_050714.TF      Contains definitions of the topocentric
                                frames for NASA DSN stations.

      ESTRACK_V01.TF
      ESTRACK_V04.TF            Contains definitions of the topocentric
                                frames for ESA tracking stations.

      NEW_NORCIA_TOPO.TF        Contains the definition of the topocentric
                                frame for the New Norcia station.


   Mapping FKs for the EARTH_FIXED Frame:

      EARTHFIXEDIAU.TF          Contains keywords that make the
                                built-in EARTH_FIXED frame coincide with
                                the IAU_EARTH frame.

      EARTHFIXEDITRF93.TF       Contains keywords that make the
                                built-in EARTH_FIXED frame coincide with
                                the ITRF93 frame.


   Surface FKs:

      ROS_DSK_SURFACES_V02.TF
      ROS_DSK_SURFACES_V03.TF   FK containing Surface definitions for the
                                additional DSKs added requested by the OSIRIS
                                team: Phobos, Deimos and Tempel 1.


Kernel File Details
===================

   The most detailed description of the data in an FK file is provided
   in metadata included inside the description area of the file. This
   information can be viewed using any text editor program.

   At least a basic knowledge of the SPICE system is needed in order to
   use these kernels. The SPICE Toolkit provides versions in Fortran
   (SPICELIB), C (CSPICE), IDL (Icy), Matlab (Mice), and Java
   (JNISpice) and the user can choose any one that suits him/her.

   The SPICE routine FURNSH can be used to load a kernel file into a
   SPICE-based application to make kernel data usable with SPICE
   APIs.

   If two (or more) text kernels assign value(s) using the '=' operator
   to identical keywords, the data value(s) associated with the last
   loaded occurrence of the keyword are used -all earlier values have
   been replaced with the last loaded value(s).