Tirawa (crater)

Tirawa basin is a large impact crater on Saturn's moon Rhea, at 34.2°N 151.7°W / 34.2; -151.7[1]. It was glimpsed by Voyager 1 during its flyby of the moon and later photographed in greater detail by the Cassini orbiter.

This Cassini image of Rhea shows Tirawa straddling the terminator

Tirawa is 5 kilometers (3.1 mi) deep in places, as measured in NASA Voyager images, and is 360 kilometers (220 mi) across.[3]

The crater has a slightly elliptic outline and an elongated central peak complex suggesting it was caused by an oblique impact. Tirawa overlaps Mamaldi, a larger and more degraded basin to its southwest.[4]

References
  1. "Tirawa". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
  2. "Tirawa". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
  3. NASA Cassini Image: Tirawa at Twilight | SpaceRef - Space News as it Happens
  4. http://www.lpi.usra.edu/meetings/lpsc2007/pdf/1958.pdf
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