Proton 4

Proton 4
Names

Proton-2 1

N-6 #1
COSPAR ID 1968-103A
Spacecraft properties
Bus N-6
Launch mass 17 t (19 tons)
Start of mission
Launch date 16 November 1968
Rocket Proton-K[1]
Launch site Tyuratam (Baikonur Cosmodrome), U.S.S.R
Orbital parameters
Reference system Geocentric
Regime Low Earth
Perigee 248 km
Apogee 477 km
Inclination 51.55°

Proton 4 was the last in a series of spacecraft designed to study the energy spectrum and the chemical composition of cosmic rays. The spacecraft was cylindrical in form and had extended solar panels and antennas. Proton 4 also studied the possible collisions of cosmic ray particles with the nuclei of hydrogen, carbon, and iron. It was hoped that the postulated fundamental particle, the quark, might be discovered during this flight. The spacecraft was in orbit for 250 days.[1]

References

  1. 1 2 "NASA - NSSDCA - Spacecraft - Details". nssdc.gsfc.nasa.gov. Retrieved 2016-04-03.


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