Soviet Space ProgramProton K/DM-281/23 (81L), Baikonur Cosmodrome, Republic of Kazakhstan
Potok 7
Launched
November 22, 1991
Summary
Potok 7 launched on a Soviet Space Program Proton K/DM-2 from 81/23 (81L), Baikonur Cosmodrome, Republic of Kazakhstan on November 22, 1991. It was Soviet Space Program's 2,452nd launch, 57th this year and humanity's 3,679th orbital launch attempt. It was the 53rd Proton K/DM-2 flight and the 7th this year. The payload was bound for Geostationary Orbit (Direct-GEO). Kosmos-2172, one of 6 catalogued objects, reached a 36,303 × 36,343 km orbit inclined 1.5°. 6 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Proton K/DM-2 · Soviet Space Program
- Booster
- No booster details on record.
- Mission
- Communications · Geostationary Orbit (Direct-GEO)
- Milestone
- 53rd Proton K/DM-2 flight · 7th this yearSoviet Space Program's 2,452nd launch57th this yearhumanity's 3,679th orbital launch attempt82nd orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-2172 · NORAD 21789 · 1991-079 · Space-Track · tracking 1 of 6 objects
Show the numbers for orbit elements
- Object
- COSMOS 2172
- Object ID
- 1991-079A
- Epoch
- 1991-11-22 07:52:11 UTC
- Mean motion
- 0.98414216 rev/day
- Eccentricity
- 0.0004689
- Inclination
- 1.493°
- Ascending node
- 271.3322°
- Arg. of perigee
- 261.2275°
- Mean anomaly
- 99.3269°
- Element set
- 999
- Rev at epoch
- 0
- B*
- 0.000099999
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: Direct-GEO. Ascent drawn from padside's representative profile.
Catalogued objects
6 catalogued: 1 payload, 2 rocket stages, 3 components; 2 still in orbit
- Kosmos-2172 · NORAD 21789 · in orbit
Proton-K 353-02 Stage 3 · re-entered November 24, 1991
Blok DM-2 No. 51L · in orbit
Data from J. McDowell, planet4589.org
About this launch
Geostationary military relay satellite
Pad

81/23 (81L), Baikonur Cosmodrome, Republic of Kazakhstan
42nd launch from 81/23 (81L), 3rd this year · 973rd from Baikonur Cosmodrome, Republic of Kazakhstan
104 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
69 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did Potok 7 launch?
Potok 7 launched on November 22, 1991. The time is known to the hour, not the minute.
Where can I watch Potok 7?
No webcast is on record for this launch.
What rocket launched Potok 7?
Proton K/DM-2, flown by Soviet Space Program. Proton K/DM-2 spec sheet
Where did Potok 7 launch from?
81/23 (81L), Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit did Potok 7 reach?
Kosmos-2172, one of 6 catalogued objects, reached a 36,303 × 36,343 km orbit inclined 1.5°.
How many satellites did Potok 7 launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).
![[AUTO] Proton - image](/media?u=https%3A%2F%2Fthespacedevs-prod.nyc3.digitaloceanspaces.com%2Fmedia%2Fimages%2Fproton_image_20231231095535.jpg&w=1600)