The second Along-track Scanning Radiometer, ATSR-2, is part of the payload of ERS-2, launched on 20/04/1995. It consists of two instruments, an Infra-Red Radiometer (IRR) and a Microwave Sounder (MWS). The IRR is equipped with infrared channels at 1.6um, 3.7um, 10.8 um and 12um to match its predecessor ATSR-1 in providing brightness temperatures for measurement of sea-surface temperature and cloud-top temperature. In addition, visible channels at 0.55, 0.67 and 0.87 um for vegatation studies and improved cloud detection.
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