Mars Atmosphere and Volatile EvolutioN (MAVEN)
Magnetometer (MAG)
Calibrated PDS Archive Bundle
LID = urn:nasa:pds:maven.mag.calibrated
Bundle Description
==================
Overview
--------
This bundle contains MAG supplied ASCII files containing a time series of
magnetic-field vectors in geophysical units (nanotesla, nT) that have been
corrected for instrumental and spacecraft effects (calibrated). In addition,
these data have been transformed into physically meaningful coordinate
systems. MAG data products are generated for all mission phases.
Version History
---------------
Bundle Modification
Version Date Description
------- ------------ ---------------------------------------------------
1.0 2015-06-03 MAVEN Release 1 (2015-06-05)
1.1 2015-08-14 MAVEN Release 2 (2015-08-17)
1.2 2015-11-13 MAVEN Release 3 (2015-11-16)
1.3 2016-02-12 MAVEN Release 4 (2016-02-15)
1.4 2016-06-16 MAVEN Release 5 (2016-06-16): Incremental release with
coverage 2014-10-10 to 2016-02-14.
1.5 2016-08-19 MAVEN Release 6 (2016-08-15): Incremental release with
coverage 2014-10-10 to 2016-05-14.
1.6 2016-11-15 MAVEN Release 7 (2016-11-15): Incremental release with
coverage 2014-10-10 to 2016-08-14.
1.7 2017-02-08 MAVEN Release 8 (2017-02-15): Incremental release with
coverage 2014-10-10 to 2016-11-14.
1.8 2017-05-12 MAVEN Release 9 (2017-05-15): Incremental release with
coverage 2014-10-10 to 2017-02-14.
1.9 2017-05-18 MAVEN Release 9: Includes an updated version of the MAG
SIS document. The data are identical to version 1.8.
2.0 2017-07-31 MAVEN Release 9: Includes the initial release of
downsampled 1 second data covering the same dates as the
high resolution data.
2.1 2017-08-10 This version includes additional 1 second downsampled
data which were omitted from the initial 1 second data
release (v. 2.0).
2.2 2017-08-10 MAVEN Release 10 (2017-08-15): Incremental release with
coverage 2014-10-10 to 2017-05-14.
2.3 2017-11-13 MAVEN Release 11 (2017-11-15): Incremental release with
coverage 2014-10-10 to 2017-08-14.
2.4 2018-02-13 MAVEN Release 12 (2018-02-15): Incremental release with
coverage 2014-10-10 to 2017-11-14.
2.5 2018-05-02 MAVEN Release 13 (2018-05-15): Incremental release with
coverage 2014-10-10 to 2018-02-14.
2.6 2018-08-09 MAVEN Release 14 (2018-08-15): Incremental release with
coverage 2014-10-10 to 2018-05-14.
2.7 2018-11-13 MAVEN Release 15 (2018-08-15): Incremental release with
coverage 2018-05-15 to 2018-08-14.
2.8 2019-01-22 Supplemental release: Corrected instrument paper reference.
2.9 2019-02-07 MAVEN Release 16 (2019-02-15): Incremental release with
coverage 2018-08-15 to 2018-11-14.
2.10 2019-05-02 MAVEN Release 17 (2019-05-15): Incremental release with
coverage 2018-11-15 to 2019-02-14.
2.11 2019-08-07 MAVEN Release 18 (2019-08-15): Incremental release with
coverage 2019-02-15 to 2019-05-14.
2.12 2019-11-05 MAVEN Release 19 (2019-11-15): Incremental release with
coverage 2019-05-15 to 2019-08-14.
2.13 2020-02-12 MAVEN Release 20 (2020-02-15): Incremental release with
added coverage 2019-08-15 to 2019-11-14.
2.14 2020-05-14 MAVEN Release 21 (2020-05-15). Incremental release with
added coverage 2019-11-15 to 2020-02-14. This release also
includes minor updates to the PDS labels (*.xml files) of
all previously released data products. The previously
released data have not changed.
2.15 2020-08-15 MAVEN Release 22 (2020-08-15). Incremental release with
added coverage 2020-02-15 to 2020-05-14.
2.16 2020-08-12 MAVEN Release 23 (2020-11-13). Incremental release with
added coverage 2020-05-15 to 2020-08-14.
2.17 2021-02-10 MAVEN Release 24 (2021-02-15). Incremental release with
added coverage 2020-08-15 to 2020-11-14.
2.18 2021-06-11 MAVEN Release 25 (2021-06-15). Incremental release with
added coverage 2020-11-15 to 2021-02-14.
2.19 2021-08-12 MAVEN Release 26 (2021-08-15). Incremental release with
added coverage 2021-02-15 to 2021-05-14.
2.20 2021-11-15 MAVEN Release 27 (2021-11-15). Incremental release with
added coverage 2021-05-15 to 2021-08-14. This release
also contains some earlier data from 2014-09-22 to
2014-10-09. Users are advised that these earlier data
differ from previously released data, especially in the
structure of the tables.
2.21 2022-02-09 MAVEN Release 28 (2022-02-14). Incremental release with
added coverage 2021-08-15 to 2021-10-31.
2.22 2022-04-08 MAVEN Release 28 part 2. This part of the MAG data
release consists of data for 2021-10-01 through
2021-10-03.
2.23 2022-05-12 MAVEN Release 29 (2022-05-15). Incremental release with
added coverage 2021-11-15 to 2022-02-22.
2.24 2022-11-15 MAVEN Release 31 (2022-11-15). Incremental release with
added coverage 2022-05-15 to 2022-08-15.
2.25 2023-02-15 MAVEN Release 32 (2023-02-15). Incremental release with
added coverage 2022-08-16 to 2022-11-14.
2.26 2023-05-11 MAVEN Release 33 (2023-05-15). Incremental release with
added coverage 2022-11-15 to 2023-02-14.
2.27 2023-08-12 MAVEN Release 34 (2023-08-15). Incremental release with
added coverage 2023-02-15 to 2023-05-14.
2.28 2023-11-15 MAVEN Release 35 (2023-08-15). Incremental release with
added coverage 2023-05-15 to 2023-08-14.
2.29 2023-02-15 MAVEN Release 36 (2024-02-15). Incremental release with
added coverage 2023-08-15 to 2023-10-31.
Coordinate Systems
------------------
Solar Equatorial (se) Coordinates:
The solar equatorial (se) coordinate system and it will be used for cruise
data only. This system is useful for heliospheric studies and mimics the
RTN system that has been widely employed for interplanetary cruise. The
"se" coordinate system uses the vector from the sun to the spacecraft (x)
as the primary reference vector; the secondary reference vector is
orthogonal to x and lies in the solar equatorial plane (y), and the third
completes the system (z).
Sun-State (ss) Coordinates:
The ss coordinate system is defined using the instantaneous Mars-Sun vector
as the primary reference vector (x direction). The X-axis lies along this
vector and is taken to be positive toward the Sun. The Mars orbital
velocity vector is the second vector used to define the coordinate system;
the y axis lies in the plane determined by the Mars-Sun vector and the
velocity vector and is orthogonal to the x axis (very nearly the negative
of the velocity vector). The vector cross product of x and y yields a
vector z parallel to the northward (upward) normal of the orbit plane of
Mars. This system is sometimes called a sun-state (ss) coordinate system
since its principal vectors are the Sun vector and the Mars state vector.
It is identical to the MSO system.
Planetocentric (pc) Coordinates:
The planetocentric (pc) coordinate system is body-fixed and rotates with the
body as it spins on its axis. The body rotation axis is the primary vector
used to define this coordinate system. Z is taken to lie along the rotation
axis and be positive in the direction of positive angular momentum. The
X-axis is defined to lie in the equatorial plane of the body, perpendicular
to Z, and in the direction of the prime meridian as defined by the
International Astronomical Union (IAU). The Y axis completes the
right-handed set.
Payload (pl) Coordinates:
The sc body upper panel face (upon which the high gain antenna (HGA) sits)
lies in the x - y plane, with the x axis parallel to the solar array hinge
line, pointing down towards the deployed auxiliary pointed platform (APP).
The y axis is parallel to the other face and is defined such that the sc z
axis (x cross y) is aligned with the HGA boresight (approximately).
Related Data Sets
=================
Additional spacecraft ephemeris information (including spacecraft local time,
which is not included as part of the MAG data), along with useful data from the
other MAVEN instruments is provided in the MAVEN In Situ Key Parameters bundle:
LID: urn:nasa:pds:maven.insitu.calibrated
Bundle Contents
===============
Collections
-----------
This bundle includes the following collections:
* PC - calibrated science vector magnetic-field and position data in
Planetocentric coordinates vs. time
(LID = urn:nasa:pds:maven.mag.calibrated:data.pc)
* SS - calibrated science vector magnetic-field and position data in
data in Sun-State (MSO) coordinates vs. time
(LID = urn:nasa:pds:maven.mag.calibrated:data.ss)
* PL - calibrated science vector magnetic-field and position data in
payload (spacecraft) coordinates vs. time
(LID = urn:nasa:pds:maven.mag.calibrated:data.pl)
Data File Naming
----------------
Data files in this bundle are named according to the following convention:
mvn_mag_l2_❮yyyy❯❮ddd❯❮cc❯❮rr❯_❮yyyymmdd❯_v❮xx❯_r❮yy❯.cdf
where:
❮desc❯ = A descriptor used to identify the data file type
❮yyyy❯ = 4-digit year of data coverage date
❮ddd❯ = 3-digit day of year
❮cc❯ = 2 character coordinate system designation ("pl" = payload,
"pc" = Planetocentric, "ss" = Sun-State)
❮rr❯ = [optional] "" = highest time resolution available, "1s" =
downsampled to 1 second
❮yyyymmdd❯ = year, month, day of month
❮xx❯ = 2-digit software version
❮yy❯ = 2-digit data file version under the specified software version
Key References
==============
Connerney, J., and P. Lawton, MAVEN MAG PDS Archive SIS - This document
describes the format and content of the MAVEN Magnetometer (MAG) Planetary
Data System (PDS) data archive. It includes descriptions of the Standard
Data Products and associated metadata, and the volume archive format,
content, and generation pipeline.
(LID = urn:nasa:pds:maven.mag.calibrated:document:sis).
Connerney, J.E.P.; Espley, J.; Lawton, P.; Murphy, S.; Odom, J.; Oliversen, R.;
and Sheppard, D., The MAVEN Magnetic Field Investigation, Space Sci Rev,
Vol 195, Iss 1-4, pp.257-291, 2015. doi:10.1007/s11214-015-0169-4
Contacts
========
This volume was produced for the Planetary Data System (PDS) at the Planetary
Plasma Interactions (PPI) node at the University of California, Los Angeles
(UCLA). The data files and labels were generated by Dr. Patricia Lawton at
Goddard Space Flight Center (GSFC) in Greenbelt, Maryland. The data were
delivered to the PPI node via the MAVEN Science Data Center (SDC) located at the
Laboratory for Atmospheric and Space Physics (LASP) in Boulder, Colorado.
For questions regarding this archive, please contact Mr. Joseph Mafi at the PDS
PPI Node:
Email jmafi@igpp.ucla.edu
Telephone 310-206-6073
For question regarding the data, please contact Dr. Jack Connerney:
Internet Jack.Connerney@nasa.gov
For questions regarding PDS Standards or other archives available from the
PDS, please contact PDS Operator at the PDS Engineering Node (at JPL):
Email pds_operator@jpl.nasa.gov
Telephone 818-354-4321
The PDS assumes no legal liability for errors on this archive. All users are
encouraged to verify the correctness of the data prior to submitting any
publications or other work based on these data. Please report errors on this
archive to the PPI Node of the PDS through contact information provided above.
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