Larger versions of most sample images are available by selecting either the modification class, the thumbnail image or crater name. The size of the larger image is given in kilobytes (kb). Large images are all at a scale of 225 m/pixel. They have not been stretched to enhance contrast, but retain the full radiometric calibration [Pettengill and others, 1991].
The types of crater morphologies listed on the data base are as follows:
B, multi-ring basin--large
crater containing more than one concentric ring of low ridges or hills
protruding above the floor inside the crater's dominant rim.
Mona Lisa (79 km in diameter; 25.61°N, 25.15°E). (1 mb)
D, double-ring basin--large
crater containing only a single concentric ring inside the crater rim.
Cochran (100 km in diameter; 51.86°N, 143.36°E). (2.15 mb)
P, central peak--crater
containing a single peak or closely grouped cluster of
peaks or hills that is more or less centered on and rises above the
crater floor deposits.
Saskia (37 km in diameter; 28.58°S, 337.12°E). (220 kb)
S, structureless floor--crater
containing no recognizable structures on the crater floor; crater floor
sometimes flooded with impact-generated lava from below, or (rarely) a
local volcanic source.
Sabira (15.7 km in diameter; 5.75°S, 239.86°E). (40 kb)
I,P, irregular(I) with central
peak(P)--crater characterized by an generally non-circular
(irregular) rim and hummocky wall and floor deposits; thought to
result from a cluster of parent asteroid or cometary material
disrupted and slowed down by the venusian atmosphere prior to impact.
Lotta (12 km in diameter; 51.06°N, 335.91°E). (40 kb)
M, multiple--impact crater, thought
to result from the impact of a parent asteroid or cometary nucleus
that was totally disrupted and whose fragments were dispersed low
in the atmosphere into separate individual trajectories just prior to
impact. [Note: diameters given for multiple craters is associated
with the largest crater within the crater group, and not for the
diameter of the entire group of craters.]
Terhi; multiple crater; largest crater in field, 10.7 km in diameter;
total size of field 30X52 km (45.71°N, 253.09°E). (156 kb)
| Title Page | Table of Contents | Introduction | The Crater Database |
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General Information | References |
|---|---|---|---|---|---|---|
| Categories Included in the Database | ||||||
| Names | Modification State | Crater Type | Elevation | |||