Russian Space ForcesSoyuz 2.1v43/4 (43R), Plesetsk Cosmodrome, Russian Federation
VNIIEM EMKA (Kosmos 2525)
Launched
March 29, 2018 · 17:38 UTC
Summary
VNIIEM EMKA (Kosmos-2525) launched on a Russian Space Forces Soyuz 2.1v from 43/4 (43R), Plesetsk Cosmodrome, Russian Federation on March 29, 2018 at 17:38 UTC. It was Russian Space Forces's 97th launch, 1st this year and humanity's 5,734th orbital launch attempt. It was the 1st Soyuz 2.1v flight. The payload was bound for Sun-Synchronous Orbit (SSO). Kosmos-2525, one of 2 catalogued objects, reached a 323 × 326 km orbit inclined 96.6°. 2 objects from this launch are catalogued, one of them a payload.
- Watch
- Пуск ракеты-носителя «Союз-2.1В» с космодрома ПлесецкМинобороны России
- Vehicle
- Soyuz 2.1v · Russian Space Forces
- Booster
- No booster details on record.
- Mission
- Government/Top Secret · Sun-Synchronous Orbit (SSO)
- Milestone
- 1st Soyuz 2.1v flightRussian Space Forces's 97th launch1st this yearhumanity's 5,734th orbital launch attempt28th orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-2525 · NORAD 43243 · 2018-028 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 2018-028A
- Epoch
- 2018-03-29 19:27:24 UTC
- Mean motion
- 15.84606024 rev/day
- Eccentricity
- 0.0002285
- Inclination
- 96.6433°
- Ascending node
- 145.2803°
- Arg. of perigee
- 101.7552°
- Mean anomaly
- 11.4334°
- Element set
- 999
- Rev at epoch
- 1
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: SSO. Ascent drawn from padside's representative profile.
Catalogued objects
2 catalogued: 1 payload, 1 rocket stage; none still in orbit
- Kosmos-2525 · NORAD 43243 · re-entered April 1, 2021
Soyuz-2-1v No. 005 Blok-I · re-entered November 4, 2018
Data from J. McDowell, planet4589.org
About this launch
The payload for the Soyuz-2-1v launch is a small reconnaissance satellite developed by VNIIEM and known by the acronym EMKA ("Experimental Small Space Apparatus"). Launch was originally scheduled for October and then slipped to November, December and eventually January due to technical problems with the payload.
Pad

43/4 (43R), Plesetsk Cosmodrome, Russian Federation
291st launch from 43/4 (43R), 1st this year · 1,621st from Plesetsk Cosmodrome, Russian Federation
Local pad time at liftoff: Mar 29, 8:38 PM GMT+3, in twilight
329 launches from this pad · 1,688 from Plesetsk Cosmodrome, Russian Federation
117 days after the previous launch from this pad
All launches from Plesetsk Cosmodrome, Russian FederationOpen in maps
Questions
When did VNIIEM EMKA (Kosmos-2525) launch?
VNIIEM EMKA (Kosmos-2525) launched on March 29, 2018 at 17:38 UTC.
Where can I watch VNIIEM EMKA (Kosmos-2525)?
Coverage: Пуск ракеты-носителя «Союз-2.1В» с космодрома Плесецк. Watch the replay
What rocket launched VNIIEM EMKA (Kosmos-2525)?
Soyuz 2.1v, flown by Russian Space Forces. Soyuz 2.1v spec sheet
Where did VNIIEM EMKA (Kosmos-2525) launch from?
43/4 (43R), Plesetsk Cosmodrome, Russian Federation. Liftoff was Mar 29, 8:38 PM GMT+3 local time at the pad.
What orbit did VNIIEM EMKA (Kosmos-2525) reach?
Kosmos-2525, one of 2 catalogued objects, reached a 323 × 326 km orbit inclined 96.6°.
How many satellites did VNIIEM EMKA (Kosmos-2525) launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).
![[AUTO] Soyuz - image](/media?u=https%3A%2F%2Fthespacedevs-prod.nyc3.digitaloceanspaces.com%2Fmedia%2Fimages%2Fsoyuz_image_20190222031122.jpeg&w=1600)