Radio Science Subsystem (RSS) Derived Data
MESSENGER Mission to Mercury

This bundle contains the following collections:

data - derived data products
document - the RSS RDR/OCC Software Interface Specification and other relevant documents
miscellaneous - the PDS3 index table for this archive

This PDS4 bundle has been migrated from a PDS3 data volume. For details, see the document
geo_notes_and_errata.pdf in the document collection.

Each document and data product in this bundle is described by a PDS4 label in a separate file with 
the same name but with the extension XML. PDS4 labels are XML (eXtended Markup Language) files that 
conform to the PDS4 Information Model XML schema at https://pds.nasa.gov/pds4/schema/released/. 
They are best viewed in an XML-aware text editor, and may be used by software that can manipulate 
XML documents.

The MESSENGER RSS derived product collection consists of products derived from radio science    
measurements made using the MESSENGER spacecraft and Earth-based stations of the NASA Deep Space
Network (DSN). The collection includes three type of products: 1) High-resolution spherical
harmonic models of Mercury's gravity field derived from raw radio tracking data; 2) Measurements of
Mercury's radius at several locations around the planet derived from radio occultations; and 3)
Spherical harmonic models of Mercury's surface shape from both Mercury Laser Altimeter (MLA) data
and occultation data. Code refers to the product type abbreviation used in the file name.


Code     Product Type        Description                                             Storage Format

OCC      Occultation         This product type contains estimates of the radius of   ASCII         
         Summary             Mercury derived from DSN tracking of the radio          Delimited     
                             frequency data from the MESSENGER spacecraft.           Table         

SHADR    Spherical           This product type contains spherical harmonic models    ASCII Table   
         Harmonics ASCII     of several different degrees and order for the                        
                             Mercury gravity field and planet's surface shape                      
                             expressed in a set of ASCII tables.                                   

SHBDR    Spherical           The product type contains spherical harmonic models     Binary Table  
         Harmonics Binary    of several different degrees and order for the                        
                             Mercury gravity field expressed in a set of binary                    
                             tables.                                                               

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.
 
Notes for Version 2.0, 2019-08-22

The following five products were added to the data collection of the bundle.

From the MESSENGER MLA team at Goddard Space Flight Center:
urn:nasa:pds:mess_rs_derived:data:ggmes_100v08_sha::1.0
urn:nasa:pds:mess_rs_derived:data:ggmes_100v08_shb::1.0

From the JPL Gravity Science team at the Jet Propulsion Laboratory:
urn:nasa:pds:mess_rs_derived:data:jgmess_160a_accel_sha::1.0
urn:nasa:pds:mess_rs_derived:data:jgmess_160a_sha::1.0
urn:nasa:pds:mess_rs_derived:data:jgmess_160a_toposig_sha::1.0

Notes for Version 3.0, 2020-02-19

These two products were added to the data collection of the bundle.

From the JPL Gravity Science team at the Jet Propulsion Laboratory:
urn:nasa:pds:mess_rs_derived:data:jgmess_160av01_shb::1.0
urn:nasa:pds:mess_rs_derived:data:jgmess_160av01_shb_l50::1.0