Cassini MIMI CHEMS Raw Bundle Readme                              
                   MIMI - Magnetospheric Imaging Instrument                           
                   CHEMS - Charge Energy Mass Spectrometer                            
                                                                                      
                        1999-01-01 to 2017-09-15                                      
                                                                                      
                 Planetary Plasma Interactions Discipline Node                        
                                   of the                                             
                            Planetary Data System                                     
                                                                                      
Introduction                                                                          
============                                                                          
This document contains information pertaining to the Cassini Magnetospheric           
Imaging Instrument (MIMI) Charge Energy Mass Spectrometer (CHEMS) Raw                 
Data Bundle. This bundle include includes Cassini MIMI Accumulation Rates,            
Pulse Height Analysis and Science Rate data collections.                              
                                                                                      
This bundle is organized into several collections, including:                         
browse (urn:nasa:pds:cassini-mimi-chems-raw:browse),                                  
data-accumulation-rates (urn:nasa:pds:cassini-mimi-chems-raw:data-accumulation-rates),
data-pha (urn:nasa:pds:cassini-mimi-chems-raw:data-pha),                              
data-science-rates (urn:nasa:pds:cassini-mimi-chems-raw:data-science-rates),          
document (urn:nasa:pds:cassini-mimi-chems-raw:document) and                           
geometry (urn:nasa:pds:cassini-mimi-chems-raw:geometry). PDS4 documentation is in all 
XML. There is an XML label for every product in the archive.                          
                                                                                      
Cassini MIMI CHEMS Browse Collection                                                  
====================================                                                  
This collection contains Cassini Magnetospheric Imaging Instrument (MIMI) Charge      
Energy Mass Spectrometer (CHEMS) Raw H+, He+, He++ and O+ flux per charge browse      
plots for 1999-01-01T00:00:00.000Z to 2008-12-31T23:59:59.000Z.                       
                                                                                      
Cassini MIMI Chems Accumulation Rates Data Collection                                 
=====================================================                                 
This collection contains the subsector accumlations from the Charge Energy Mass       
Spectrometer (CHEMS) sensor on the Cassini Magnetospheric Measurement System          
(MIMI) from 1999-01-03T00:00:00.000Z to 2017-09-15T23:59:59.000Z.                     
                                                                                      
Cassini MIMI CHEMS Pulse Height Analysis Data Collection                              
========================================================                              
This collection contains the pulse height analysis data from the Charge Energy        
Mass Spectrometer (CHEMS) sensor on the Cassini Magnetospheric Measurement System     
(MIMI) from 1999-01-03T00:00:00.000Z to 2017-09-15T23:59:59.000Z.                     
                                                                                      
Cassini MIMI CHEMS Science Rates Data Collection                                      
================================================                                      
This collection contains the raw simplified subsector accumulation data from the      
Charge Energy Mass Spectrometer (CHEMS) sensor on the Cassini Magnetospheric          
Measurement System (MIMI) from 1999-01-03T00:00:00.000Z to 2017-09-15T23:59:59.000Z.  
                                                                                      
Cassini MIMI CHEMS Geometry Collection                                                
======================================                                                
This file contains Cassini Magnetospheric Imaging Instrument (MIMI) Charge Energy     
Mass Spectrometer (CHEMS) instrument geometry information.                            
                                                                                      
This is a PDS4 archive of the following PDS3 data set:                                
CO-E/J/S/SW-MIMI-2-CHEMS-UNCALIB-V1.1 (https://doi.org/10.17189/1519596).             
                                                                                      
These collections were originally archived under PDS3 in the following volumes:       
COMIMI_0000 and COMIMI_9001.                                                          
                                                                                      
Under the PDS3 standard all archives were self contained and could in principle be    
stored in a single file system (disk, CD-ROM, etc.).  PDS4 takes advantage of the     
network capabilities that allow archives to be distributed.  As a result, some of     
the documents and metadata previously stored in the PDS3 catalog files are no longer  
maintained locally, but are  maintained in a central repository.  Those files are     
referenced by unique PDS logical identifiers that are included in the document        
collection inventory.                                                                 
                                                                                      
Errata                                                                                
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At the time of migration, not all browse plots were generated for the raw             
data products. Please note there is not a browse plot for each data product.          
Refer to the internal references for the matching browse and data products.           
                                                                                      
The formatting was modified in the CHEMS_GEOMETRY.CSV file to correctly               
fit in a CSV file. The data values themselves remain unchanged.                       
                                                                                      
Contacts                                                                              
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This bundle was produced for the Planetary Data System (PDS) at the Planetary         
Plasma Interactions (PPI) node.                                                       
                                                                                      
For questions or problems regarding this bundle, please contact the PDS/PPI           
operator:                                                                             
                                                                                      
    Email               pds_operator@igpp.ucla.edu