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  2. Anti-satellite weapon - Wikipedia

    en.wikipedia.org/wiki/Anti-satellite_weapon

    Anti-satellite weapons (ASAT) are space weapons designed to incapacitate or destroy satellites for strategic or tactical purposes. Although no ASAT system has yet [update] been utilized in warfare , a few countries ( China , India , Russia , and the United States ) have successfully shot down their own satellites to demonstrate [2] their ASAT ...

  3. Thor (satellite) - Wikipedia

    en.wikipedia.org/wiki/Thor_(satellite)

    Thor 3 (the "3" is officially "III") was a satellite used by Canal Digital in the Nordic areas for DTH services. It launched on 9 June 1998 with an expected lifetime at 12 years, and was located at 0.8°W. It had 14 active K u band transponders powered by 47-watt traveling-wave tube amplifiers (TWTAs). The satellite was targeted on Scandinavia ...

  4. Milstar - Wikipedia

    en.wikipedia.org/wiki/Milstar

    USA-169, 2003-04-08. Milstar (Military Strategic and Tactical Relay) [1] is a constellation of military communications satellites in geosynchronous orbit, which are operated by the United States Space Force, and provide secure and jam-resistant worldwide communications to meet the requirements of the Armed Forces of the United States.

  5. Satellite temperature measurement - Wikipedia

    en.wikipedia.org/wiki/Satellite_temperature...

    Satellite temperature measurements are inferences of the temperature of the atmosphere at various altitudes as well as sea and land surface temperatures obtained from radiometric measurements by satellites. These measurements can be used to locate weather fronts, monitor the El Niño-Southern Oscillation, determine the strength of tropical ...

  6. Elektro–L - Wikipedia

    en.wikipedia.org/wiki/Elektro–L

    Elektro-L. Elektro–L ( Russian: Электро-Л) is a series of meteorological satellites developed for the Russian Federal Space Agency by NPO Lavochkin. The first satellite, Elektro-L No.1, was launched on 2 January 2011. It is the first Russian weather satellite that successfully operates in geostationary orbit, [1] and is currently the ...

  7. Chemical oxygen demand - Wikipedia

    en.wikipedia.org/wiki/Chemical_oxygen_demand

    Chemical oxygen demand. In environmental chemistry, the chemical oxygen demand ( COD) is an indicative measure of the amount of oxygen that can be consumed by reactions in a measured solution. It is commonly expressed in mass of oxygen consumed over volume of solution which in SI units is milligrams per litre ( mg / L ).

  8. List of natural satellites - Wikipedia

    en.wikipedia.org/wiki/List_of_natural_satellites

    The prograde satellites consist of the Himalia group and three others in groups of one. The retrograde moons are grouped into the Carme, Ananke and Pasiphae groups. Saturn has 146 moons with known orbits; 66 of them have received permanent designations, and 63 have been named. Most of them are quite small. Seven moons are large enough to be in ...

  9. WSR-74 - Wikipedia

    en.wikipedia.org/wiki/WSR-74

    WSR-74. WSR-74C radar from Central Illinois WFO. WSR-74 radars were W eather S urveillance R adars designed in 1974 for the National Weather Service. They were added to the existing network of the WSR-57 model to improve forecasts and severe weather warnings. Some have been sold to other countries like Australia, Greece, and Pakistan.

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