L'Ralph and LEISA
L'Ralph and LEISA
L'Ralph is Lucy's 'dual camera' comprising a visible-light colour imaging instrument (Multispectral Visible Imaging Camera (MVIC), 0.4 to 0.85 microns) and a near-infrared spectrometer (Linear Etalon Imaging Spectral Array (LEISA), 1.0 to 3.6 microns). LEISA will search for the absorption bands that serve as 'fingerprints' for various silicates, ices and organics likely to be on the surface of the Trojan asteroids. MVIC will take colour images of the asteroids and help determine their activity.
Credit:
NASA/SWRI