Cassini’s ’T-118’ Titan Encounter: Fly By Once, Measure Twice

Cassini’s cameras look in one direction; some of the spacecraft’s particle detectors look in another. Having both types of instrument observe Titan’s atmosphere at the same time, or the same latitude, or even on the same flyby can be difficult. This is why Cassini scientists are excited about the T-118 flyby. This encounter features a complex, joint observation by two instruments. It is the only flyby in the mission where the Ultraviolet Imaging Spectrograph (UVIS) and the Ion and Neutral Mass Spectrometer