The TROPOspheric Monitoring Instrument (TROPOMI) aboard the Sentinel-5 Precursor satellite (launched on 13 October 2017) is a nadir-viewing spectrometer measuring reflected sunlight in the ultraviolet. visible. near-infrared. and shortwave infrared spectral ranges. https://balboasurfandsstylers.shop/product-category/kids-pca-hats/