Impact cratering on the Saturnian moon Tethys: A complete population map and geologic analysis

Impact cratering is a valuable field of research though which the geological history, surface evolution, and formation of Saturnian moons can be understood. To increase understanding of the formation and current composition of the Saturnian moons, midsized moons such as Tethys must be studied to form a comprehensive picture. This work demonstrates an adaptation of methodologies from previous observations of Europa, Enceladus, and small sections of Tethys' surface to create a full surface image of Tethys. These images, sourced from NASA's Planetary Data Survey Image Atlas, are transformed into crater population maps. The maps are analysed to estimate the distribution, size and density of craters on Tethys to understand its structure and morphology. The analysis may also provide evidence towards any residual geologic activity on Tethys, and whether the Ithaca Chasma, and unusual red streaks on the surface are indicators of such.