Legenda (satellite system)

Geodesy

Fundamentals

* Geodesy
* Geodynamics
* Geomatics
* History

Concepts

* Geographical distance
* Geoid
* Figure of the Earth (Earth radius and Earth's circumference)
* Geodetic datum
* Geodesic
* Geographic coordinate system
* Horizontal position representation
* Latitude / Longitude
* Map projection
* Reference ellipsoid
* Satellite geodesy
* Spatial reference system
* Spatial relations

Technologies

* Global Nav. Sat. Systems (GNSSs)
* Global Pos. System (GPS)
* GLONASS (Russia)
* BeiDou (BDS) (China)
* Galileo (Europe)
* NAVIC (India)
* Quasi-Zenith Sat. Sys. (QZSS) (Japan)
* Discrete Global Grid and Geocoding

Standards (history)

|  NGVD 29|  Sea Level Datum 1929

|

OSGB36|  Ordnance Survey Great Britain 1936
SK-42|  Systema Koordinat 1942 goda
ED50|  European Datum 1950
SAD69|  South American Datum 1969
GRS 80|  Geodetic Reference System 1980
ISO 6709|  Geographic point coord. 1983
NAD 83|  North American Datum 1983
WGS 84|  World Geodetic System 1984
NAVD 88|  N. American Vertical Datum 1988
ETRS89|  European Terrestrial Ref. Sys. 1989
GCJ-02|  Chinese obfuscated datum 2002
Geo URI|  Internet link to a point 2010

* International Terrestrial Reference System
* Spatial Reference System Identifier (SRID)
* Universal Transverse Mercator (UTM)

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Legenda, or the MKRC Legenda system, is a Soviet satellite targeting system mated to the SS-N-19 missile. It consisted of the US-P SIGINT satellites and the US-A Radar Ocean reconnaissance satellites, which were nuclear powered.[1] The Legenda system consists of 37 ELINT satellites named US-P [2] and 32 US-A nuclear powered radar satellites [3] to provide global coverage. Legenda is now non-functional after the US-A and US-P satellites were deactivated. It is being replaced by the Liana system with 4 operational satellites as of July 2021.[4]

## See also

* P-700 Granit

## References

1. ↑ Brian Harvey The Rebirth of the Russian Space Program: 50 Years After 2007 "The US-P ("P" for "passive"; industry code 11F120) program began with Cosmos 699 in 1974, becoming operational as the Legenda system in 1978. US-P5 are built by the Arsenal Design Bureau in St. Petersburg. Thirty-six were launched."
2. ↑ "US-P". https://space.skyrocket.de/doc_sdat/us-p.htm.
3. ↑ "US-A". https://space.skyrocket.de/doc_sdat/us-a.htm.
4. ↑ Podvig, Pavel (25 October 2018). "Cosmos-2528 - new Lotus-S1 electronic reconnaissance satellite". Russian Strategic Nuclear Forces. http://russianforces.org/blog/2018/10/cosmos-2458_-_new_lotus-s1_ele.shtml.

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