The Hayabusa SPICE Data Archive
========================================================================
Introduction
============
This document provides an overview of the Hayabusa SPICE data set,
including a description of the directory structure. Additional
documents included in this data set provide more details, especially
the ``spiceds.cat'' dataset description and the various
kernel-specific ``/data/*/*info.txt'' files.
This data set contains navigation and related observation geometry
and other ancillary data in the form of SPICE System kernel files
for the Hayabusa spacecraft. See the file ``mission.cat'' in the
``/catalog'' directory for a description of the Hayabusa mission and
the file ``insthost.cat'' in the same directory for a description of
the Hayabusa spacecraft.
The SPICE kernel files contain geometric and other ancillary
information needed to recover the full value of science instrument
data. Data in the SPICE kernel files must be accessed using the NAIF
(Navigation and Ancillary Information Facility) software called the
SPICE Toolkit. See the file ``softinfo.txt'' in the ``/software''
directory for instructions on how to obtain this software.
This data set is contained on a single virtual volume, HAYSP_1000,
including data from the surveying and collection phase of the
mission, covering from September 11, 2005 through November 19,
2005.
The majority of the data files included in this volume were copied
in September 2008 from the Hayabusa Project Science Data Archive
Information System (http://hayabusa.sci.isas.jaxa.jp) maintained by
the Institute of Space and Astronautical Science (ISAS) of the Japan
Aerospace Exploration Agency (JAXA). A few more files were provided in
October 2008 by Dr. Olivier S. Barnouin-Jha of the Johns Hopkins
University, Applied Physics Laboratory (APL/JHU). The Itokawa
ephemeris SPK file, officially provided to the project in May 2005
by the Jet Propulsion Laboratory (JPL) Solar System Dynamics (SSD)
group led by Dr Donald K. Yeomans, was copied to the archive from
the NAIF server in September 2009. Finally, in the course of
data analysis for archive preparation in September-October 2009 NAIF
used some of the JAXA and Dr. Barnouin-Jha's data to create a few
additional kernel files, which, along with some generic kernels,
also became part of this archive.
File Formats
============
All text documents and other meta information files such as
descriptions, PDS object definitions and detached PDS labels are
stream format files, with a carriage return (ASCII 13) and a line
feed character (ASCII 10) at the end of the record. This allows the
files to be read by MS-DOS/Windows, Unix and Mac OSX operating
systems.
The data files in this data set were prepared to be used under a
UNIX environment. Therefore all SPICE text kernel files are UNIX
text files, with a line feed character (ASCII 10) at the end of the
line, and all SPICE binary kernels files are UNIX binary files in
which bit pattern structures for double precision and integer
numbers follow the IEEE standard. While some of the data files on
this volume can be used 'as is', converting the files to binary or
text format native to the user's computer may be required. Refer to
the documentation provided with the SPICE Toolkit to find out
whether conversion is needed in each specific case.
NAIF provides a tool (BINGO) that can convert either binary or text
kernels from one format to another. This means that text files can
have their line terminator changed and binary files can be converted
to the native format of the platform of interest. For access to this
tool, see the reference to the NAIF utilities website in the file
``/software/softinfo.txt''.
Volume Contents
===============
Files on this volume are organized into a set of subdirectories
below the top-level directory. The following table shows the
structure and content of these directories. In this table, directory
names are enclosed in square brackets ([]). See the ``*info.txt''
files in each directory for specific information on the files in the
directory, including naming schemes.
[top-level-directory]
|
|-- aareadme.txt Text version of the aareadme file.
|-- aareadme.htm HTML version of the aareadme file.
|-- aareadme.lbl PDS label for both aareadme files.
|-- errata.txt Comments and errata on this volume.
|-- voldesc.cat Description of the contents of this volume.
|
|--[catalog] Directory containing PDS catalog objects.
| |
| |-- catinfo.txt Description of files in the catalog directory.
| |-- insthost.cat Description of the spacecraft.
| |-- mission.cat Description of the mission.
| |-- person.cat References for personnel who created this volume.
| |-- ref.cat List of publications mentioned in *.cat files.
| |-- release.cat Description of the data set releases.
| |-- spiceds.cat Description of the SPICE data set.
| |-- spice_hsk.cat Description of housekeeping (browser) information.
| +-- spice_inst.cat Description of SPICE kernels.
|
|--[data] Directory containing SPICE data files (kernels.)
| |
| |--[ck] Directory containing CK files.
| | |
| | |-- ckinfo.txt Description of files in the data/ck directory.
| | |-- *.bc CK files.
| | +-- *.lbl PDS labels for CK files.
| |
| |--[ek] Directory containing EK files.
| | |
| | |-- ekinfo.txt Description of files in the data/ek directory.
| | |-- *.bdb DBK files.
| | +-- *.lbl PDS labels for DBK files.
| |
| |--[fk] Directory containing FK file(s).
| | |
| | |-- fkinfo.txt Description of files in the data/fk directory.
| | |-- *.tf FK file(s).
| | +-- *.lbl PDS labels for FK files.
| |
| |--[ik] Directory containing IK files.
| | |
| | |-- ikinfo.txt Description of files in the data/ik directory.
| | |-- *.ti IK files.
| | +-- *.lbl PDS labels for IK files.
| |
| |--[lsk] Directory containing LSK files.
| | |
| | |-- lskinfo.txt Description of files in the data/lsk directory.
| | |-- *.tls LSK file(s).
| | +-- *.lbl PDS labels for LSK files.
| |
| |--[pck] Directory containing PCK file(s).
| | |
| | |-- pckinfo.txt Description of files in the data/pck directory.
| | |-- *.tpc Text PCK file(s).
| | +-- *.lbl PDS labels for PCK files.
| |
| |--[sclk] Directory containing SCLK file(s).
| | |
| | |-- sclkinfo.txt Description of files in the data/sclk directory.
| | |-- *.tsc SCLK file(s).
| | +-- *.lbl PDS labels for SCLK files.
| |
| +--[spk] Directory containing SPK files.
| |
| |-- spkinfo.txt Description of files in the data/spk directory.
| |-- *.bsp SPK files.
| +-- *.lbl PDS labels for SPK files.
|
|--[document] Directory containing volume related documents.
| |
| |-- docinfo.txt Description of files in the document directory.
| |-- hayspice.htm Description of issues with Hayabusa SPICE data.
| |-- *.png Images accompanying hayspice.htm.
| |-- hayspice.lbl PDS label for hayspice.htm and accompanying images.
| |-- onlabels.txt Description of PDS labels for SPICE kernels.
| +-- lblinfo.txt Description of PDS label location in this volume.
|
|--[extras] Directory containing extra data elements.
| |
| |-- extrinfo.txt Description of files and directories in extras.
| |
| +--[mk] Directory containing meta-kernels.
| |
| |-- mkinfo.txt Description of meta-kernel files.
| +-- *.tm meta-kernel files.
|
|--[index] Directory containing index files.
| |
| |-- indxinfo.txt Description of files in the index directory.
| |-- checksum.tab Table of MD5 checksums for files in this data set.
| |-- checksum.lbl PDS label for checksum.tab file.
| |-- index.tab Index table of SPICE kernels on this volume.
| +-- index.lbl PDS label for index.tab file.
|
+--[software]
|
+-- softinfo.txt Instructions on how to obtain SPICE software.
Whom to Contact for Information
===============================
PDS Navigation and Ancillary Information Facility (NAIF),
MAIL STOP 301-121
Jet Propulsion Laboratory
California Institute of Technology
4800 Oak Grove Drive
Pasadena, CA, 91109-8099
818-354-3869
WWW Site: http://naif.jpl.nasa.gov
Electronic mail address: pds_operator@naif.jpl.nasa.gov
Cognizant Persons
=================
For the overall volume design and production, Boris Semenov, NAIF/JPL
(Boris.Semenov@jpl.nasa.gov).
For the data copied from the Hayabusa Project Science Data Archive
Information System (http://hayabusa.sci.isas.jaxa.jp) maintained by
ISAS/JAXA, the archive curator Masanao Abe and the archive webmaster
Yukio Yamamoto (hayabusa@planeta.sci.isas.jaxa.jp).
For the improved Hayabusa trajectory, Dr. Olivier S. Barnouin-Jha,
APL/JHU (olivier.barnouin-jha@jhuapl.edu).
For the asteroid Itokawa ephemeris, Dr. Donald K. Yeomans, SSD/JPL
(Donald.K.Yeomans@jpl.nasa.gov).