|The coordinates, diameters, altitudes and morphological
features of all the craters of Mars exceeding 10 km in diameter, totaling 19
308, are compiled. The morphological features included are the degree of rim
degradation, the presence of terraces and faults, central peaks, pits,
hills, chains and fissures, dark material on the crater floor, fluidized
ejecta, the character of the crater floor and surrounding surface and albedo.
Designations, where given by the IAU, are presented in both Latin and
Russian transcription. Statistical summaries of quantity and density in
various forms are presented in tables, charts and maps.
The catalogue is intended for use by investigators of Mars, students, in comparative planetology and in the selection of craters for naming.
The catalogue is available for download in text format: SAI_mars.zip (318KB) and in Excel format SAI_mars_xls.zip (2721KB)
System of classification
A sequential index number, allocated in descending order of diameter, craters of equal diameter being ordered by ascending latitude, then longitude.
Location of crater centre, recorded to nearest 0.1 degree.
Mean of North-South and East-West diameters in kilometres, measured from the rim peak. For craters with significant ellipticity, the minor diameter is recorded here.
Surface altitude in kilometres.
Ejecta range/major axis
Range of ejecta in kilometres, if present, or major diameter, if crater is elliptical (according to classification of Special features below).
1 highly preserved rim
Terraces and faults
0 no terraces, no faults
Peaks and circular ridges
0 no peaks and no circular ridges
|Hills and ridges
hills and no ridges
0 no pit
Fissures and chains
0 no fissures and no chains
Character of floor
Dark material on the crater floor
0 no dark material
0 no craters
a - degradation class 1
b - degradation class 1, with central peak
c - class 2
d - class 2
e - class 3
f - class 4
g - class 5
h - with fluidised ejecta
i - elliptical
j - with central pit
craters of different morphological categories