The New Horizons SPICE Data Archive
========================================================================
Introduction
============
This document provides an overview of the New Horizons SPICE Data
Archive, including a description of the directory structure.
Additional documents included in this data set provide more details,
especially the "dataset.cat" data set description and the various
kernel-specific "/data/*/*info.txt" files.
This volume contains navigation and related observation geometry and
other ancillary data in the form of SPICE System kernel files for
the New Horizons spacecraft. See the file "mission.cat" in the "/catalog"
directory for a description of the New Horizons mission and the file
"insthost.cat" same directory for a description of the 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, NHSP_1000,
including data from all mission phases and covering from launch,
2006 JAN 19, through the end time of the latest spacecraft
trajectory file supplied in the data set. Until the end of the
spacecraft lifespan this data set will be accumulating with new data
added approximately six months after completion of each major
mission phase.
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 MacOS operating
systems.
The data files on this version of the disk were prepared to be used
under a UNIX environment. 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". In addition, the SPICE Toolkit contains a
pair of command line programs (TOBIN and TOXFR) that will convert
binary files.
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.
|-- voldesc.cat Description of the contents of this volume.
|-- errata.txt Comments and errata on this volume.
|
|--[catalog] Directory containing PDS catalog objects.
| |
| |-- catinfo.txt Description of files in the catalog directory.
| |-- insthost.cat Description of the NH 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 data releases in this volume.
| |-- spiceds.cat Description of the SPICE data set.
| |-- spice_hsk.cat Description of housekeeping (browser) information.
| +-- spice_inst.cat Instrument catalog file for this data set.
|
|--[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.
| |
| |--[dsk] Directory containing DSK files.
| | |
| | +-- dskinfo.txt Description of files in the data/dsk directory
| |
| |--[ek] Directory containing EK files.
| | |
| | +-- ekinfo.txt Description of files in the data/ek directory
| |
| |--[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 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.
| |-- onlabels.txt Description of PDS labels for SPICE kernels.
| +-- lblinfo.txt Description of PDS label location in this volume.
| |
| +--[spinstate] Directory containing spin state history.
| | |
| | +-- nh_spin_state.* Files containing spin state history.
|
|--[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.
| |
| |-- checksum.lbl PDS label for checksum.tab.
| |-- checksum.tab ASCII table of MD5 checksums for files in this vol.
| |-- indxinfo.txt Description of files in the index directory.
| |-- 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 system software.
Whom to Contact for Information
===============================
New Horizons Science Operations Center (SOC)
Southwest Research Institute
1301 Walnut Street
Boulder, CO, 80303
303-546-9670
Cognizant Persons
=================
This volume was designed and produced by Andrew Steffl, Southwest Research
Institute, Department of Space Studies, Boulder, Colorado, USA.
Releases 0002, 0003, and 0004 were produced by Brian Carcich, under
contract to the Southwest Research Institute.
Releases 0005, 0006, and 0007 were produced by Brian Enke, Southwest
Research Institute, Solar System Science & Exploration Division,
Boulder, Colorado, USA.