The huge impact crater was spotted by the Cassini radar instrument on 15 February 2005 on Titan as the spacecraft flew within 1577 kilometres of the moon's surface.
The crater identified by the radar has an outer diameter of 440 kilometres and was seen before with Cassini's imaging cameras, but not in this detail. It resembles a large crater or part of a ringed basin, either of which could be formed when a comet or asteroid tens of kilometres in size crashed into Titan.
This image is a part of a larger swath acquired on 15 February 2005, on Cassini's second opportunity to map Titan's surface with radar. Seams between radar segments are visible as horizontal, sawtooth-shaped lines.