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    1. From the article

      >[SpacePNT](https://www.gpsworld.com/tag/spacepnt/) and European Engineering and Consultancy (EECL) have completed the [final presentation](https://navisp.esa.int/news/article/NaviMoon%20-%20Earth%20Moon%20GNSS%20Spaceborne%20Receiver%20for%20In-Orbit%20Demonstration) of the European Space Agency (ESA)-funded Earth Moon GNSS Spaceborne Receiver for In-Orbit Demonstration project. This project aimed to develop and qualify the NaviMoon GNSS spaceborne receiver for lunar applications.

      >Currently, geostationary orbit (GEO) and geostationary transfer orbit (GTO) missions utilize GNSS signals for in-orbit positioning, navigation and timing (PNT). NASA’s Magnetospheric Multiscale (MMS) mission has shown that GPS signal tracking is possible up to 150,000 km from Earth’s surface, which is half the distance to the Moon. ESA has assessed the feasibility of extending GNSS use for lunar missions through studies under its General Studies Program (GSP). These studies indicate that lunar navigation using GNSS might be feasible if specific high-sensitivity techniques are implemented in GNSS spaceborne receivers.

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