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Cassini Orbiter
Ion and Neutral Mass Spectrometer
Uncalibrated Data Archive
Volume COINMS_9001
Planetary Plasma Interactions Discipline Node
of the
Planetary Data System
=============================================================================
Introduction
=============================================================================
This volume contains data from the Cassini Orbiter Ion and Neutral Mass
Spectrometer (INMS) HKG data volume set. It includes the complete contents
of the housekeeping telemetry packets. Each packet is stored in a standard
data product with one record per packet. Items are converted from DN to
dimensional values. Data is available between 1999-005 (5 Jan) and
2017-258 (15 Sept).
A complete description of the design of this volume is given in the INMS
archive volumes software interface specification (VOLSIS). An electronic copy
of this document is located on this volume in the /DOCUMENT/VOLSIS directory.
This volume is intended for the use of scientists and students in the study
of the composition and structure of Titan's upper atmosphere and it's
interaction with Saturn's magnetospheric plasma. The data may be used for
research and publication.
=============================================================================
Volume format
=============================================================================
The volume is organized into a hierarchical directory structure.
All science data are located under the DATA directory. The INDEX directory
contains a listing of all of the data products included on this volume. The
CATALOG directory contains PDS documentation describing the mission,
spacecraft, instrument, and data set. These include:
CO_MISSION.CAT Cassini-Huygens mission description
CO_INST_HOST.CAT Cassini orbiter spacecraft description
CO_INMS_INST.CAT INMS instrument description
CO_INMS_PKT_DS.CAT INMS PKT data set description
CO_INMS_REF.CAT INMS reference information
CO_INMS_PERSON.CAT INMS personnel contact information
CO_PROJREF.CAT Cassini Project reference information
Note that updated versions of these files may be available from PDS-PPI
http://pds-ppi.igpp.ucla.edu/search?dataset=CO-S-INMS-2-PKT-U-V1.0
Additional information on volume organization is given in the VOLSIS
(described above), and in section the 'Volume Contents' below.
=============================================================================
File formats
=============================================================================
The data files on this volume are provided in ASCII comma-separated value
(CSV) format. Note that some of the CSV files contained on this volume may be
larger than the maximum limit imposed by some spreadsheet applications.
Caution should be used to insure that the data are handled correctly. Each
data file is also accompanied by a detached PDS label file (.LBL extension),
an ASCII file containing information describing the data file and data record
format.
Catalog files (.CAT extension) are provided in ASCII format. Note, however,
that as '.CAT' is a reserved file extension under MS Windows it may be
necessary to specify a text editor when opening PDS catalog files.
Document files describing the volume, the data and data-calibration software
are included in the volume. These files may be given in MS Word, HTML and
ASCII formats.
Text files and detached label files contain 80-byte fixed-length ASCII
records, with a carriage-return character (ASCII 13) in the 79th byte and a
line-feed character (ASCII 10) in the 80th byte. This format allows the files
to be read by Mac OS, DOS, UNIX and VMS operating systems. Note that while
both label and catalog files are ASCII, some operating systems will not
recognize the .LBL and .CAT extensions as ASCII types. It may be necessary to
either remap these extensions as ASCII in the system or text browser, or else
to open the files from within the text browser.
=============================================================================
Volume contents
=============================================================================
The files on this volume are organized into one Root directory containing
several subdirectories. The following table shows the structure and content
of these directories. In the table, directory names are enclosed in square
brackets, upper-case letters indicate an actual directory or file name, and
lower-case letters indicate the general form of a set of directories or file
names.
DIRECTORY OR FILE CONTENTS
COINMS_9001
|
|- AAREADME.TXT This file
|
|- ERRATA.TXT Description of known anomalies on this volume
|
|- VOLDESC.CAT Description of the contents of this volume
|
|- [CATALOG] Catalog files describing mission and dataset
|
|- [DATA] INMS housekeeping data products
|
|- [DOCUMENT] Electronic documents describing the instrument
| and data set
|
|- [INDEX] Index files relating to this volume
|
=============================================================================
Errata
=============================================================================
Every effort has been made to ensure that the data and documentation are of
the best possible quality. However, mistakes are inevitable. The PPI Node of
the PDS will maintain an online list of ERRATA where errors and updates are
documented. Should any user of this product find an error on this volume,
please report the error to the PPI Node so that the finding can be made
public. All users are encouraged to verify the correctness of the data prior
to submitting any publications or other work based on these data.
There is a file called ERRATA.TXT found at the root level of this volume
which contains a list of known deficiencies or caveats associated with data
on this volume.
If you find an error on this volume, please report the error to the PDS
Operator at the PPI Node of the PDS.
Email pds_operator@igpp.ucla.edu
Telephone (310) 206-6073
U.S. Mail PDS Operator
c/o Dr. Raymond Walker
UCLA - EPSS
Los Angeles, CA 90095-1567
=============================================================================
Contacts
=============================================================================
The person most directly responsible for the construction and release of this
archive volume is Mr. Steven Joy. He was the PPI Node Data Administrator at
the time this volume was created and understands as much about the data
structure and data organization as anyone. Other PPI personnel who may be
aware of issues related to this archive volume include Mr. Joseph Mafi, and
Dr. Raymond Walker, the PDS/PPI Node manager.
For questions or problems regarding this volume, please contact the PDS/PPI
operator:
Email pds_operator@igpp.ucla.edu
Telephone (310) 206-6073
U.S. Mail PDS Operator
c/o Dr. Raymond Walker
3845 Slichter Hall
UCLA - EPSS
Los Angeles, CA 90095-1567
For questions regarding PDS Standards or other archive volumes available from
the PDS, please contact PDS Operator at the PDS Central Node (at JPL):
Email pds_operator@jpl.nasa.gov
Telephone (818) 354-4321
U.S. Mail Planetary Data System, PDS Operator
Jet Propulsion Laboratory
Mail Stop 202-101
4800 Oak Grove Dr.
Pasadena, CA 91109-8099
The PDS and the Planetary Plasma Interactions (PPI) Node in particular,
assume no legal liability for errors on this volume. All users are encouraged
to verify the 'correctness' of the data prior to submitting any publications
or other work based on these data. Errors on this volume should be reported
back to the PPI Node of the PDS through the ERRATA reporting procedures
described above.
|