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Launch SuccessfulSoviet Space Program
Soyuz U: Efir 2
Scientific satellite dedicated to cosmic rays research
Friday, 27 December 1985
Mission Data
🇷🇺Soviet Space ProgramEst. 1931
Launch VehicleSoyuz U
Vehicle FamilySoyuz
Vehicle Record694 of 714 launches (97.2%)
Provider TypeGovernment
Agency Record2288 successes / 168 failures (93%)
Success Streak17 consecutive
Mission TypeAstrophysics
Target OrbitLow Earth Orbit
Launch Pad41/1
Location🇷🇺 Plesetsk Cosmodrome, Russian Federation RUS
Orbital Launches This Year#124
Agency Launches This Year#99
Launches From This Pad310
Launches From This Site1,689
Status Note
The launch vehicle successfully inserted its payload(s) into the target orbit(s).
Launch Site
41/1 · 62.9410°N 40.5268°E
Launch data from Launch Library 2 by The Space Devs.