Soyuz 2-1B | Lotos-S (Kosmos 2502)
Operated by Russian Aerospace Defence Forces, the orbital mission Soyuz 2-1B | Lotos-S (Kosmos 2502) delivered its payload into the designated orbit.
- Launch time
- Status
- SUCCESS
- Operator
- Russian Aerospace Defence Forces
- Mission type
- Orbital
- Rocket
- Soyuz 2.1b
- Launch site
- Plesetsk Cosmodrome, Russian Federation
- Launch pad
- 43/4 (43R)
- Payload
- —
- Target orbit
- Unknown

Mission timeline
- 2014-12-25T03:01:13.000ZSoyuz 2.1b roars off the pad at Plesetsk Cosmodrome, Russian Federation.
- The vehicle reaches Max Q, the highest aerodynamic load of the flight.
- MECO — first-stage propulsion ends after a nominal burn.
- Clean stage separation confirmed.
- The upper-stage engine lights up after separation.
- All mission objectives achieved.