ACC CERTIFIED PDS4
                  Currently available data extend through 2018-02-14 (Ls 130 MY 34) [ongoing]
                  (MAVEN Mars orbit insertion occurred Sep 21, 2014; Ls 199.8, MY 32)







    Density derived from acceleration data and winds derived from NAV and ACS data

    Measurement Objectives
    Vertical profiles of atmospheric density and temperature: possible wind velocities


    Useful Mission Documents
    Mission Description and Spacecraft Description
    Mission Timeline (csv) This table is constructed from parameters derived from the MAVEN SPK file and The MAVEN events file. It contains information concerning mission activity that might affect the quality of the data as well as geometry at periapse and apoapse.
    Software Interface Specification (SIS) - Description of the instrument and data structures.

    Archive Bundle Contents
    Documentation - Directory containing the document collection, which includes references to refereed journals using this instrument, and information about calibration and explanation of data structures.

    Derived Data - Directory containing advanced products

    Retrieving Data
    The MAVEN/NGIMS data are in ACSII format with detached XML labels.


    Selected data can be retrieved in 2 ways
    1) Downloading an index, selecting components and uploading your selection.
    Indices that tabulate information associated with each product are available. The associated geometry is given at the time of the midpoint of the observation. (Note – geometry at periapse is available from the NAIF SPK file.)
    a. Select your index
    Instrument Log (csv)
    Note: The number in the TID column can be used to track a specific observation through the data versions.
    b. Sort and make your selection
    c. Upload the URN values from your revised index (note the total uncompressed file size before requesting)


    2) Selecting specific parameters and requesting limited data files

    Downloading annual collections of data
    2014-2019 Derived Data (46.2 MB)

    Citing Data Sets for Publications
    Tolson, Robert; Lugo, Rafael, MAVEN Accelerometer Data, urn:nasa:pds:maven_accel, (2016).

    Other Useful Products for Interpreting the Data

    References - A listing of team members to facilitate literature searches

    SPICE - Archived MAVEN SPICE ancillary data providing observational geometry (positions, orientations, instrument pointing, time conversions, etc.) are available from the PDS NAIF Node.