National Climatic Data Center / National Oceanic and Atmospheric Administration / Ocean and Global Atmospheric Project User Ephemeris File Uniform Resource Locator U.S. Space Command / Defense Command Online Satellite Access and Request System office of Satellite Data Processing / Cloud Cover Radiometer Computer Compatible Tape Command / Platinum Resistance Thermometer Pheudo Noise Quality Control office of Research / National Oceanic and Atmospheric Administration NOAA / /