Jingpo Lacus is a lake in the north polar region of Titan,[1] the planet Saturn's largest moon.

It is west of Kraken Mare at 73° N, 336° W, roughly 240 km (150 mi) long,[1][note 1] similar to the length of Lake Onega on Earth.

On 8 July 2009, Cassini's Visual and Infrared Mapping Spectrometer (VIMS) observed a specular reflection in 5 μm infrared light off Jingpo Lacus at 71° N, 337° W. (This has sometimes been described less accurately as at the southern shoreline of Kraken Mare.

[4]) Specular reflections indicate a smooth, mirror-like surface, so the observation corroborated the inference of the presence of a large liquid body drawn from radar imaging.

The observation was made soon after the north polar region emerged from 15 years of winter darkness.