NSSDCA ID: PSPG-00051
Availability: At NSSDC, Ready for Offline Distribution (or Staging if Digital)
Time span: 1990-09-15 to 1992-09-13
Compressed Once Mosaic Image Data Records (C1-MIDRs) consist of mosaics generated from compressed basic image data records (C-BIDRs). C1-BIDRs have been generated by computing 3 x 3 pixel arithmetic moving averages from the F-BIDRs. Each C1-MIDR is in a sinusoidal equal area projection and has an origin at 0 degrees latitude, with the central meridian defined as the longitude bisecting the mosaic. Each C1-MIDR has 7K lines (aligned with latitudes) and 8K samples, arranged as 56 1K x 1K files. C1-MIDRs, with their 225 m pixel widths, are designed to cover the planet at reasonably high resolution and high signal to noise. Each C1-MIDR has been corrected for cross-track shading (i.e. for seams) by a feathering procedure. The 1K x 1K files have a VICAR2 format, with embedded VICAR2 labels. The data have been placed on CD-ROMs with documentation, detached Planetary Data System labels, and summary tabular information. Over the course of the first mapping cycle, 184 C1-MIDRs will be generated, for a total volume of 10.3 Gbytes. C1-MIDRs also exist as photoproducts that have had a linear contrast enhancement applied. Photoproducts are generated from the 7K x 8K assemblage of files, so there is one photoproduct per C1-MIDR. Finally, in some cases a cross track seam removal process has been applied. See the CONTENTS.TAB file on the relevant MIDR CD-ROM volume for information on which MIDRs have been seam-corrected. Please refer to the F-BIDR (B42763-000A) data set description for more details on radiometric and geometric processing of Magellan SAR data.
The data from this collection are available on-line at:
http://pds-geosciences.wustl.edu/missions/magellan/c123midr/index.htm
Questions and comments about this data collection can be directed to: Dr. David R. Williams
Name | Role | Original Affiliation | |
---|---|---|---|
Ms. Vicky L. Barlow | General Contact | NASA Jet Propulsion Laboratory | vbarlow@pop.jpl.nasa.gov |
General Contact | Washington University | mgnso@wurst.wustl.edu |