CLEM HiRes High-Resolution Mosaic (MDIM)
MDIM – High-Resolution Mosaic
Instrument: High-resolution Camera
PDS Data Set ID: CLEM1-L-H-5-DIM-MOSAIC-V1.0DOI: 10.17189/1520340
For more information about HiRes MDIM products, see the Data Set Catalog File or Volume Information File.
The LIDAR High-resolution camera (HiRes) High Resolution Mosaic (MDIM) data products are each a portion of the Clementine HiRes Lunar Mosaic, a geometrically controlled, calibrated mosaic compiled from non-uniformity corrected, 750 nm (‘D’) filter high resolution observations. These mosaics cover sub-polar regions between 80 degrees South and 80 degrees North with sinusoidal equal area mapping at 20 m/pixel, and the polar regions about 80 degrees with a stereographic mapping at 30 m/pixel resolution at the poles. The mosaics are divided into tiles that cover approximately 1.75 degrees of latitude and span the longitude range of the mosaicked frame. Images from a given orbit are map-projected using the orbit’s nominal central latitude.
The geometric control is provided by the 100 m/pixel USGS Clementine Basemap Mosaic (MDIMG) compiled from the 750 nm Ultraviolet/Visible (UVVIS) Clementine imaging system and, for the polar mosaics, from the 150 m/pixel polar basemap mosaic.
Calibration was achieved by removing image non-uniformity largely due to the HIRES system’s light intensifier. Also provided are offset and scale factors which transform the 8-bit HIRES data to approximate photometric units, achieved by a fit of the HIRES data to the corresponding UVVIS basemap, which is photometrically calibrated.
MDIM processing comprised 5 steps:
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Image calibration, map project and basemap generation
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Low-resolution registration against the UVVIS basemap
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High-resolution registration against overlapping images
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Constrained placement combining high- and low-resolution registrations
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HIRES mosaic and photometric calibration estimation
HiRes MDIM products have the following file names:
Haadoooo.IMG
where:
nn = 2-digit center latitude
e = latitudinal direction
N = north
S = south
mmmm = projection center longitude*10
In ODE, MDIM products have the following product IDs:
HAADOOOO