FK =============================================================================
MEX Files
=============================================================================
Last Update: 12 MAY 2006
This "aareadme.txt" file describes the contents of the KERNELS/FK directory
of the MEX SPICE data server. It also provides the file naming conventions
used for the MEX FK kernels, and it provides identification of the most
current version of each kind of FK file.
All these FK files are produced manually with the information supplied by
Mars Express teams describing the frames for the spacecraft and its science
instruments. Some of these FK files (for tracking stations) are provide
specifically for the Radio Science investigation.
All FK files (*.TF) contained in this directory are unix text
files. These may be used in a non-compatible text environment by using the
ASCII mode of FTP to port the files. [Ref 2a]
Contact Jose Luis Vazquez ([e-mail]) or Joe Zender
([e-mail]) if you have any questions.
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References
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1. Frames Required Reading. NAIF Document No. 349.06 30 Jul 2003
2. Selected SPICE Tutorials from the NAIF server:
ftp://naif.jpl.nasa.gov/pub/naif/toolkit_docs/Tutorials/office/individual_docs/
a) Porting Kernels Tutorial 09_porting_kernels.ppt
b) FK Tutorial 18_fk.ppt
3. NAIF IDs Required Reading. NAIF Document No. 219.12 30 Jul 2003
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Mars Express FK Directory Structure
=============================================================================
aareadme.txt Text file describing the directory structure, the naming
conventions for the FK, and the current version(s) of
each FK type.
former_versions Subdirectory that contains obsolete versions of the FK
files that have been updated in the Current FK Kernel
Set.
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MEX Frame Kernel Naming Convention MEX_Vxx.TF
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token description
--------- -------------------------------------------------------
xx Version Number
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DSN Stations Frame Kernel Naming EARTH_TOPO_yymmdd.TF
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Convention token description
--------- -------------------------------------------------------
yymmdd Release date.
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ESA Generic Frame Definition Kernel Naming Convention RSSDxxxx.TF
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token description
--------- -------------------------------------------------------
xxxx Version number. This is the standard naming convention
for ESA generic frame definitions kernel.
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Current FK Kernels Set
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Name Comments
------------------ ------------------------------------------------------
EARTH_TOPO_yymmdd.TF FK kernel for the topocentric reference frames for
the Deep Space Network (DSN) stations. This kernel was
released on yy-mm-dd.
EARTHFIXEDIAU.TF This kernel makes the IAU_EARTH frame coincide with
the earth fixed reference frame.
EARTHFIXEDITRF93.TF This kernel makes the ITRF93 frame coincide with the
earth fixed reference frame.
MEX_Vxx.TF FK containing the complete set of frame definitions
...