![]() ![]() The main challenge is the Moon itself.Īs the Moon goes through its different phases, the amount of light hitting Earth is constantly changing. The raw data from SUOMI NPP and its VIIRS instrument has to be skillfully manipulated to get these images. Producing these types of maps is challenging. Credits: NASA Earth Observatory images by Joshua Stevens, using Suomi NPP VIIRS data from Miguel Román, NASA’s Goddard Space Flight Center It’s the first satellite instrument to make quantitative measurements of light emissions and reflections, which allows researchers to distinguish the intensity, types and the sources of night lights over several years.Ĭomposite image of Mid-Atlantic and Northeastern U.S. VIIRS detects photons of light in 22 different wavelengths. The key instrument on that satellite is the Visible Infrared Imaging Radiometer Suite (VIIRS), a 275 kg piece of equipment that is a big step forward in Earth observation. In 2011, NASA and NOAA launched a satellite called the Suomi National Polar-orbiting Partnership (NPP) satellite. This new work stems from a collaboration between the National Oceanic and Atmospheric Administration (NOAA) and NASA. ![]() They’ve been analyzing data and working on new software and algorithms to improve the quality, clarity, and availability of the images. The team behind this is led by Miguel Román of NASA’s Goddard Space Flight Center. ![]()
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