Mars Atmosphere and Volatile EvolutioN (MAVEN) 
Extreme Ultraviolet Moniter (EUV)
Derived PDS Archive Bundle
LID = urn:nasa:pds:maven.euv.derived

Bundle Description
==================

Overview
--------
This bundle of products is science quality data that are derived from EUV solar 
occultation measurements. It comprises the  derived data product for the EUV 
instrument. In the production process information such as spacecraft attitude 
has been considered. There is only one collection/product in the EUV derived 
bundle. The production and validation is the EUV instrument team's
responsibility.


Version History
---------------
Bundle     Modification
Version    Date            Description
-------    ------------    ---------------------------------------------------
1.0        2025-02-13      First release of this bundle, part of
                           Maven Release 40 (2025-02-14).

2.0        2025-06-03      Part of  Maven Release 41 (2025-05-15) First release 
                           of data from 2014-11-17 to 2024-06-14 and 2024-12-28 
                           to 2025-02-14 and redelivery of data from 2024-08-22 
                           to 2024-10-23.

Bundle Contents
===============

Collections
-----------
This bundle includes the following collections:

   * data.occultations - derived atmospheric number density (in cm-3) and 
       temperature (in K) measured at the tangent point of the  MAVEN-Sun 
       line and Mars atmosphere. (LID = urn:nasa:pds:maven.euv.derived:occultations)

Data File Naming
----------------
Data files in this bundle are named according to the following convention:

   mvn_euv_l4_occultations_<orbit>_<segment>_<yyyy><mm><dd>_v<xx>_r<yy>.csv
   
where:

   <orbit>   = The orbit number
   <segment> = The orbit segment, either “in” or “out” for inbound or outbound 
               eclipse transition, respectively
   <yyyy>    = 4-digit year of data coverage date
   <mm>      = 2-digit month of year of data coverage date
   <dd>      = 2-digit day of month of data coverage date
   <xx>      = 2-digit software version
   <yy>      = 2-digit data file version under the specified software version

Key Documents
=============
Eparvier, F.G., MAVEN EUV PDS Archive SIS - This document describes the format and 
   content of the Extreme Ultraviolet monitor (EUV) Planetary Data System (PDS) 
   data archive. It includes descriptions of the data products and associated 
   metadata, and the archive format, content, and generation pipeline. It is 
   located document collection of the MAVEN EUV bundle (LID = 
   urn:nasa:pds:maven.euv:document:sis).



Contacts
========
This archive 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 were generated by Dr. Frank Eparvier at the Laboratory
for Atmospheric and Space Physics (LASP) in Boulder, Colorado. The data were 
delivered to the PPI node via the MAVEN Science Data Center (SDC) also located 
at the LASP in Boulder, Colorado. The PDS metadata were generated at the PPI 
node.

For questions regarding this archive, please contact the PDS PPI Node:

  Email             pds_operator@igpp.ucla.edu

For question regarding the data, please contact Dr. Frank Eparvier:

  Internet          Frank.Eparvier@lasp.colorado.edu

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 of the PDS through contact information provided above.