Proton satellite
Encyclopedia
The Proton was a model of Soviet
Soviet Union
The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....

 scientific artificial satellites. The maximum mass was about 17 tonnes. Four "Protons" were launched between 1965 and 1968. The satellite was developed by NPO Mashinostroyenia. The aim of the project was to study high and ultra-high energy particle
Subatomic particle
In physics or chemistry, subatomic particles are the smaller particles composing nucleons and atoms. There are two types of subatomic particles: elementary particles, which are not made of other particles, and composite particles...

s.

The latest became Proton 4 (NORAD ID: 3544, NSSDC ID: 1968-103A) launched on November 16, 1968 by Proton-K
Proton-K
The Proton-K, also designated Proton 8K82K after its GRAU index, 8K82K, is a Russian, previously Soviet, carrier rocket derived from the earlier Proton. It was built by Khrunichev, and is launched from sites 81 and 200 at the Baikonur Cosmodrome in Kazakhstan...

 rocket with a booster and was in orbit for 250 days.

The Proton satellites were the source of the name for the Proton rocket
Proton rocket
Proton is an expendable launch system used for both commercial and Russian government space launches. The first Proton rocket was launched in 1965 and the launch system is still in use as of 2011, which makes it one of the most successful heavy boosters in the history of spaceflight...

, which launched them as some of its first payloads.

External links

  • The history of "NPO Mashinostroyenia"
  • The INCA Project, Ionization-Neutron CAlorimeter - a modern continuation of Proton experiment project at Institute for Nuclear Research
    Institute for Nuclear Research
    Institute for Nuclear Research of the Russian Academy of Sciences is a soviet/russian scientific research centre "for further development of the experimental base and fundamental research activities in the field of atomic nucleus, elementary particle and cosmic ray physics and neutrino...

     of Russian Academy of Sciences
    Russian Academy of Sciences
    The Russian Academy of Sciences consists of the national academy of Russia and a network of scientific research institutes from across the Russian Federation as well as auxiliary scientific and social units like libraries, publishers and hospitals....

    website
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