Efir 1, 2
Efir [GDK]
The Efir missions were scientific missions based on the Zenit / Vostok type spacecraft. Efir was to measure the energy spectrum and charge composition of primary cosmic rays with energy above 2 TeV.
The experiment was carried out with the detectors Sokol and Sokol-2 aboard the artificial earth satellites Kosmos-1543 and Kosmos-1713.
| Nation: | USSR |
|---|---|
| Type / Application: | Cosmic radiation |
| Operator: | |
| Contractors: | |
| Equipment: | |
| Configuration: | Zenit Bus |
| Propulsion: | 11D82M |
| Power: | Batteries |
| Lifetime: | 26 days |
| Mass: | 6300 kg |
| Orbit: | 214 km × 401 km, 62.8° (#1); 215 km × 397 km, 62.8° (#2) |
| Satellite | Date | LS | Launch Vehicle | Remarks | |
|---|---|---|---|---|---|
| Kosmos 1543 (Efir #1) | 10.03.1984 | Pl | Soyuz-U | ||
| Kosmos 1713 (Efir #2) | 27.12.1985 | Pl | Soyuz-U |
