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2. Satellite imagery - Wikipedia

   en.wikipedia.org/wiki/Satellite_imagery

   In 1977, the first real time satellite imagery was acquired by the United States's KH-11 satellite system. The most recent Landsat satellite, Landsat 9, was launched on 27 September 2021. The first television image of Earth from space transmitted by the TIROS-1 weather satellite in 1960.

3. GOES-16 - Wikipedia

   en.wikipedia.org/wiki/GOES-16

   GOES Rebroadcast (GRB) – GOES-16's downlink is handled by the GRB system, which serves as the primary full resolution and near-real-time relay for the satellite's instrument data. The instrument data are processed as Level 1b data for all instruments and Level 2 data for the GLM.

4. Real-time kinematic positioning - Wikipedia

   en.wikipedia.org/wiki/Real-time_kinematic...

   Real-time kinematic positioning ( RTK) is the application of surveying to correct for common errors in current satellite navigation (GNSS) systems. It uses measurements of the phase of the signal's carrier wave in addition to the information content of the signal and relies on a single reference station or interpolated virtual station to ...

5. Google Earth - Wikipedia

   en.wikipedia.org/wiki/Google_Earth

   Google Earth. Google Earth is a computer program that renders a 3D representation of Earth based primarily on satellite imagery. The program maps the Earth by superimposing satellite images, aerial photography, and GIS data onto a 3D globe, allowing users to see cities and landscapes from various angles. Users can explore the globe by entering ...

6. Satellite navigation - Wikipedia

   en.wikipedia.org/wiki/Satellite_navigation

   The Quasi-Zenith Satellite System (QZSS) is a four-satellite regional time transfer system and enhancement for GPS covering Japan and the Asia-Oceania regions. QZSS services were available on a trial basis as of January 12, 2018, and were started in November 2018. The first satellite was launched in September 2010.

7. Automatic identification system - Wikipedia

   en.wikipedia.org/wiki/Automatic_identification...

   A graphical display of AIS data on board a ship. The automatic identification system ( AIS) is an automatic tracking system that uses transceivers on ships and is used by vessel traffic services (VTS). When satellites are used to receive AIS signatures, the term Satellite-AIS (S-AIS) is used. AIS information supplements marine radar, which ...