Diagram of MMS Orbits for Different Phases (image) NASA/Goddard Space Flight Center Share Print E-Mail Caption This diagram of MMS orbits for different phases compared to orbits of GPS satellites shows the unique way MMS uses GPS. Because MMS flies above the orbit of GPS satellites, the MMS spacecraft receive their GPS signals from the opposite side of Earth. Credit NASA Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.