RUSSIAN AEROSPACE DEFENCE FORCES

Soyuz 2.1a | Bars-M (Kosmos 2503)

SUCCESSFeb 27, 2015 at 11:01 UTCSoyuz 2.1a →
VEHICLE
Soyuz 2.1a
AGENCY
Russian Aerospace Defence Forces
LAUNCH PAD
43/4 (43R)
COUNTRY
RUS
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: effa441d-f5e8-471f-a27f-5234bb4c972f
Reported date: Feb 27, 2015 at 11:01 UTC
Last synced: 13 minutes ago
This launch date and time are confirmed by the launch provider. Countdown is active.
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MANUFACTURER
Progress Rocket Space Center
FLIGHTS
56
SUCCESSES
55
SUCCESS RATE
98.2%

The Soyuz 2.1A converted the flight control system from analog to digital, which allowed launch from fixed platforms. It also allowed big fairings and payloads. It is currently used for crewed Soyuz and Progress flights to the ISS.

When is the Soyuz 2.1a | Bars-M (Kosmos 2503) launch?
The Soyuz 2.1a | Bars-M (Kosmos 2503) is scheduled for Friday, February 27, 2015 at 11:01 AM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: SUCCESS.
What rocket is being used for Soyuz 2.1a | Bars-M (Kosmos 2503)?
The Soyuz 2.1a | Bars-M (Kosmos 2503) mission uses the Soyuz 2.1a rocket, manufactured by Progress Rocket Space Center. The Soyuz 2.1a has flown 56 times with a 98.2% success rate.
Where is the Soyuz 2.1a | Bars-M (Kosmos 2503) launching from?
The launch takes place from 43/4 (43R) at Plesetsk Cosmodrome, Russian Federation.
Who is launching Soyuz 2.1a | Bars-M (Kosmos 2503)?
The Soyuz 2.1a | Bars-M (Kosmos 2503) is operated by Russian Aerospace Defence Forces.
Can I watch the Soyuz 2.1a | Bars-M (Kosmos 2503) launch live?
Yes. Visit the launch detail page on Space Launch Live for embedded YouTube webcasts, replay videos, and links to live coverage from SpaceX, NASA, NASASpaceflight, and other channels.
Mar 29, 2026 00:03 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 29, 2026 00:03 UTC
Launch date set: Feb 27, 2015 at 11:01 UTC
NET (No Earlier Than) confirmed by Russian Aerospace Defence Forces
Mar 29, 2026 00:03 UTC
Launch completed successfully
Updated via Launch Library 2
Last data sync: 13 minutes ago
Launch Library 213 minutes ago
Launch ID: effa441d-f5e8-471f-a27f-5234bb4c972f
Open-Meteo Weather1 day ago
Pad weather at 62.93, 40.46

Mission Profile

Soyuz 2.1a | Bars-M (Kosmos 2503) was a Soyuz 2.1a mission operated by Russian Aerospace Defence Forces that lifted off from 43/4 (43R), Plesetsk Cosmodrome, Russian Federation on February 27, 2015. The launch was a success.