Mars 2020 Planetary Instrument for X-ray Lithochemistry (PIXL)
Mars 2020 (Perseverance) Rover Mission
Planetary Data System (PDS) Archive Bundle

Overview
========

This bundle contains the following collections.

  data_raw_ancillary: Raw (EDR) ancillary data products.

  data_raw_spectroscopy: Raw (EDR) science data products.
  
  data_imaging: Image data products from the Micro-Context
  Camera (MCC). This collection only contains the logical identifiers (LID)
  for the images. The image products are archived as the Cartography and 
  Imaging Node. 

  data_processed: Calibrated and derived (RDR) data products

  document: Descriptions of the PIXL data products and the archive 
  bundle organization.

Data Products and PDS Labels
============================

Every PIXL data product is accompanied by a PDS label in a file with 
the same name as the data file, but with the extension ".xml", as PDS 
labels are written in XML (Extended Markup Language). The labels may 
be viewed in a text editor or web browser, preferably one that applies 
special formatting to XML files to make them more readable. The labels 
may also be read by software that can interpret XML. 

Data tables are comma-separated-value tables (.csv), which are text 
files that may be read using the PDS4 Viewer, or any text editor, or 
Microsoft Excel.

Images from the MCC camera are archived primarily in the collection
data_mcc_imgops in the m2020_imgops bundle. For cross-reference, 
the images are listed as secondary members of the collection 
data_imaging here in the m2020_pixl bundle. 

Documentation
=============
       
The PIXL Bundle Software Interface Specification in the document 
collection describes the contents, format, and structure of the bundle.
Users unfamiliar with PDS archives are advised to read this document 
first.

The PIXL User's Guide in the document collection presents the 
information a data user is most likely to need in order to read
and understand the data. The information is drawn from the following
two documents, the PIXL EDR SIS and the PIXL RDR SIS, which 
have more detail.

The PIXL EDR Software Interface Specification in the document 
collection describes the raw data products generated by the PIXL 
instrument, including how they are processed and labeled, the format 
of the data products and their labels, and applicable standards.

The PIXL RDR Software Interface Specification in the document 
collection describes the data, metadata, and browse products derived 
from the PIXL raw data.

==============
This bundle was created and archived by the Geosciences Node of the 
Planetary Data System. Questions about this bundle may be directed to 
geosci@wunder.wustl.edu.

Last updated 2021-08-12.