The Magellan Compressed Mosaicked Image Data Record (C1-MIDR) archive contains mosaics of compressed-resolution (225 m/pixel) image swaths (C-BIDRs) covering selected areas of Venus.

 
Citation Pettengill, G., MGN V RADAR SYSTEM DERIVED MIDR COMPRESSED ONCE V1.0, MGN-V-RDRS-5-MIDR-C1-V1.0, NASA Planetary Data System, 1991
Digital Object Identifier (DOI) 10.17189/1522528
Data Set Abstract This data set contains the Magellan Compressed Once Mosaic Image Data Records (C1-MIDRs) which consists of mosaics generated from compressed basic image data records (C-BIDRs). C-BIDRs have been generated by computing 3x3 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 on the CD-ROMs. C1-MIDRs, with their 225m pixel widths, are designed to cover the planet at reasonably high resolution and high signal to noise ratio.
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    Additional Information
    Mission Information MAGELLAN
    Data Set Information MGN-V-RDRS-5-MIDR-C1-V1.0
    Instrument Host Information MGN
    Instrument Information RDRS
    Target Information VENUS