Elektron
Elektron
a rarely used name for magnesium alloys. It was used in the 1920’s for the first industrial magnesium alloys based on the Mg-AI-Zn and Mg-Mn systems, which contained up to 10 percent aluminum, up to 3 percent zinc, and up to 2.5 percent manganese.
Elektron
the name of a series of Soviet artificial earth satellites designed to study the earth’s radiation belt, cosmic rays, the chemical composition of near-earth space, short-wave solar radiation, galactic radio emission, and micrometeorites.
Table 1. Flights of Elektron earth satellites | ||||
---|---|---|---|---|
Initial orbital parameters | ||||
Perigee (km) | Apogee (km) | Declination (degrees) | Period of revolution (min) | |
Elektron 1. Jan. 30, 1964 | 406 | 7,100 | 61 | 169 |
Elektron 2 . Jan. 30, 1964 | 406 | 68,200 | 61 | 1,360 |
Elektron 3 . July 11, 1964 | 405 | 7,040 | 60.87 | 168 |
Elektron 4 . July 11, 1964 | 459 | 66,235 | 60.87 | 1,314 |
Elektron 1 and Elektron 3 weighed 350 kg and had a diameter of 0.75 m and a length of 1.3 m; Elektron 2 and Elektron 4 weighed 445 kg and had a diameter of 1.8 m and a length of 24 m (see Table 1 for additional data). The measurements made by the Elektron satellites made it possible to study the time variations of the characteristics of near-earth space during various levels of solar activity. The Elektron satellites were launched in pairs using one launch vehicle.