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Ralph (New Horizons)

Composite image from Ralph-MVIC of Jupiter
Ralph's MVIC-channel image of Jupiter's moon Io

Ralph is a science instrument aboard the robotic New Horizons spacecraft, which was launched in 2006.[1] Ralph is a visible and infrared imager and spectrometer to provide maps of relevant astronomical targets based on data from that hardware.[1] Ralph has two major subinstruments, LEISA and MVIC.[2] MVIC stands for Multispectral Visible Imaging Camera and is a color imaging device, while LEISA originally stood for Linear Etalon Imaging Spectral Array and is an infrared imaging spectrometer for spaceflight.[2] LEISA observes 250 discrete wavelengths of infrared light from 1.25 to 2.5 micrometers.[3] MVIC is a pushbroom scanner type of design with seven channels, including red, blue, near-infrared (NIR), and methane.[4]

  1. ^ a b Talbert, Tricia (2015-03-25). "Spacecraft and Instruments". NASA. Retrieved 2018-10-11.
  2. ^ a b Weaver, et al – Overview of the New Horizons Science Payload
  3. ^ FEATURED IMAGE: A Look From LEISA
  4. ^ Stockton, Nick. "The Camera Adding Color to Your Pluto Pics Has Bigger Plans". Wired.
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