https://catalog.data.gov/dataset/diffuse-attenuation-k490-aqua-modis-npp-indonesia-2002-2013-1-day-composite
National Oceanic and Atmospheric Administration, Department of Commerce - Diffuse Attenuation K490,...
OSU distributes Diffuse Attenuation Coefficient at 490 nm Wavelength data from NASA's Aqua satellite. Measurements are gathered by the Moderate Resolution...
department of commercenationaloceanicatmosphericadministration
https://www.techradar.com/news/portable-audio/audio/hi-fi-radio/akg-quietly-launches-new-k490-nc-and-k495-nc-headphones-1053306
AKG quietly launches new K490 NC and K495 NC headphones | TechRadar
Jan 10, 2012 - Two pairs of travel-friendly noise cancellers touch down
akgquietlylaunchesnewheadphones