Lucy is the first mission to explore Jupiter’s Trojan asteroids—primitive fossils of planet formation trapped in Jupiter's leading (L4) and trailing (L5) Lagrange points. Over its 12-year tour, Lucy will visit an unprecedented 10 asteroids, including the contact binary Patroclus-Menoetius.
| Sensor | Subsystem | Scientific Measurement Function | State |
|---|---|---|---|
| L'LORRI | Lucy Long-Range Reconnaissance Imager |
High-resolution panchromatic telescope for crater and shape modeling.
|
Active |
| L'Ralph | Multispectral & IR Spectrometer |
Searches for ice, silicates, and organic tholins on Trojan surfaces.
|
Active |
| L'TES | Thermal Emission Spectrometer |
Measures surface temperature and regolith grain size.
|
Active |