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PUBLICATION_DATE = 2017-10-06
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Magnetic Field Calibrated Full-Resolution Data Archive
Planetary Plasma Interactions Discipline Node
Planetary Data System
This volume is part of the Cassini Orbiter Magnetometer Calibrated Data volume
set. It contains Cassini magnetometer (MAG) full-res. calibrated data covering
1999-08-16 (DOY 228) to 2016-12-31 (DOY 366).
The Cassini Orbiter Magnetometer Calibrated Data volume set contains
calibrated RDR (Reformatted Experimenter Data Record) magnetic-field data from
the Cassini Fluxgate (FGM) and Vector-Helium (VHM) Magnetometers. These data
have been calibrated from the raw data, and rotated into geophysical
coordinates by the Cassini MAG team at Imperial College. The data are in a
variety of coordinate systems depending upon the mission phase as indicated
in the table below:
mission phase coordinates
all CRUISE phases RTN
Earth flyby RTN
Jupiter flyby RTN
Saturn oribital operations KRTP
This volume complies with Planetary Data System (PDS) standards, Version
3.8, described in Jet Propulsion Laboratory (JPL) document JPL D-7669.
Some versions of these data were determined to contain timing errors,
including both backwards and repeated times. These timing errors have not
been corrected in the data files. However, any timing errors that may be
present in a data file are noted in the PDS label file that accompanies it.
A full list of all files, and intervals containing timing errors is provided
A more detailed description of the timing errors is included in the data set
2. Volume format
This volume is organized into a hierarchical directory structure. It complies
with both the Universal Disk Format (UDF) and the ISO 9660 (level 2) file
system standards in order to accommodate users on a wide variety of platforms.
3. File formats
The data files on this volume are provided as ASCII tables (.TAB file
extension). Each data file is accompanied by a detached PDS label file (.LBL
extension) which contains information describing the data file and data
Document files describing the volume, the data and data-calibration software
are included in the volume. These files are provided in PDF, and HTML.
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 MacOS, DOS, UNIX and VMS operating systems.
4. 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
DIRECTORY OR FILE CONTENTS
|- 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] MAG data files
| |- [yyyy] Data for the year yyyy
|- [DOCUMENT] Relevant documentation
| |- [DATA_QUALITY] tables containing data quality and coverage
| | information
|- [INDEX] Index files relating to this volume
While every effort has been made to ensure that the data and documentation
are of the best possible quality, the PDS and the Planetary Plasma
Interactions (PPI) Node in particular, assume no legal liability for errors
on this disk. All users of these data are encouraged to verify the correctness
of the data prior to submitting any publications or other work based on these
data. Should any user of this product find an error on this volume, please
report the error to the PPI Node PDS Operator through the contact information
The file ERRATA.TXT, found at the root level of this volume, contains a list
of known deficiencies or caveats associated with data on this volume. An
up-to-date version of this file is maintained online at the PDS/PPI node, and
may be obtained through the PPI webpages (http:/ppi.pds.nasa.gov/).
This archive volume was produced at the PDS/PPI Node by Joseph Mafi under the
direction of Dr. Steven Joy, the PPI Operations Manager.
For questions or problems regarding this volume, please contact the PDS/PPI
Telephone (310) 206-6073
A list of relevant Cassini MAG personnel team is provided in the personnel
catalog file (PERSON.CAT) that is associated with this volume.