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Satellite geodesy began shortly after the launch of Sputnik in 1957. Observations of Explorer 1 and Sputnik 2 in 1958 allowed for an accurate determination of Earth's flattening. [1]: 5 The 1960s saw the launch of the Doppler satellite Transit-1B and the balloon satellites Echo 1, Echo 2, and PAGEOS.
Greenhouse Gases Observing Satellite. The first precise carbon dioxide observing satellite and precursor to OCO-2. Himawari 8 and 9: Active Japan Meteorological Agency: 2014 Similar to NASA's GOES satellites. ICESat-2: Active NASA 2018 Measures ice sheet height changes for climate change diagnoses. [16] [17] IMS-1: Active ISRO: 2008 ISS: Active
This is an accepted version of this page This is the latest accepted revision, reviewed on 2 January 2025. Objects intentionally placed into orbit This article is about human-made satellites. For moons, see Natural satellite. For other uses, see Satellite (disambiguation). Two CubeSats orbiting around Earth after being deployed from the ISS Kibō module's Small Satellite Orbital Deployer A ...
Syncom 2 was the first communications satellite in a geosynchronous orbit. It revolved around the Earth once per day at constant speed, but because it still had north–south motion, special equipment was needed to track it. [19] Its successor, Syncom 3, launched on 19 July 1964, was the first geostationary communications satellite. Syncom 3 ...
Print/export Download as PDF; Printable version; ... Pages in category "Satellites" The following 50 pages are in this category, out of 50 total.
The Earth-centered, Earth-fixed coordinate system (acronym ECEF), also known as the geocentric coordinate system, is a cartesian spatial reference system that represents locations in the vicinity of the Earth (including its surface, interior, atmosphere, and surrounding outer space) as X, Y, and Z measurements from its center of mass.
LAGEOS (/ l eɪ ʒ iː oʊ s /), Laser Geodynamics Satellite or Laser Geometric Environmental Observation Survey, are a series of two scientific research satellites designed to provide an orbiting laser ranging benchmark for geodynamical studies of the Earth. Each satellite is a high-density passive laser reflector in a very stable medium Earth ...
COSMO-SkyMed (COnstellation of small Satellites for the Mediterranean basin Observation) is an Earth-observation satellite space-based radar system funded by the Italian Ministry of Research and Ministry of Defence and conducted by the Italian Space Agency (ASI), intended for both military and civilian use. [3]