MGN RDRS Polar Stereographic Mosaicked Image Data Record (PMIDR)

PMIDR – Polar Stereographic Mosaicked Image Data Record

PDS3 Data Set ID: MGN-V-RDRS-5-MIDR-POLAR-STEREOGR-V1.0

PDS4 Bundle: urn:nasa:pds:magellan_midrDOI: 10.17189/5ktn-9j71

For more information about RDRS MIDR products, see the Magellan MIDR User's Guide for the PDS4 Dataset, and the North Data Set Description or the South Data Set Description for the PDS3 PMIDR products

The Radar System (RDRS) Polar Stereographic Mosaicked Image Data Records (PMIDRs) are two special product mosaics generated from Compressed Basic Image Data Record (CBIDR) data and displayed in a polar stereographic projection. Both the North and South PMIDRs extend from the pole to 80 degrees North and South latitude, respectively. Pixel widths are approximately 225 meters.

The North PMIDR product was created by the Multimission Image Processing Subsystem, Jet Propulsion Lab. The South PMIDR product was created by the Center for Space Research, Massachusetts Institute of Technology.

This new PDS4 PMIDR archive contains the same data as the original PDS3 archive, but with the multiple small framelets of each product put together into a single mosaic. The updated archive also has contrast-enhanced and easier to display browse products stored as JPEG files, along with improved metadata in the MIDR PDS4 labels. For a more comprehensive understanding of this dataset and its improvements, please see the Magellan MIDR User's Guide for the PDS4 Dataset. The PDS3 North PMIDR can be found here and the PDS3 South PMIDR can be found here.

In ODE, the two PMIDR products have the following product IDs:

pmidr_north

pmidr_south

For each migrated PDS4 PMIDR data product in ODE's data product search result page, it is linked to the following files appear with their corresponding PDS3 label files, including the ancillary data and framelets that make up a single 7168 line by 8192 sample mosaic.

File Name	File Content
browse.img	The browse version of the PMIDR, 896 lines by 1024 samples, created by averaging groups of 8 x 8 pixels in the original PMIDR.
frame.tab	A table describing the range of latitude and longitude within each framelet.
geom.tab	Selected entries from the Magellan Experimenter’s Notebook. The Notebook is generated from the Magellan Radar Mapping Sequencing Software and is based on predicted information. Information is included in GEOM.TAB on orbit numbers for which data were acquired and used in a given file, together with information on radar viewing geometry and image quality.
hist.tab	A binary histogram of pixel values in each 7168 x 8192 PMIDR.
pfnnn.img	A 1024 x 1024 image framelet, where ‘nnn’ is the framelet number (001-100).