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Soviet Space ProgramSoyuz U31/6, Baikonur Cosmodrome, Republic of Kazakhstan
Progress 21
Launched
May 7, 1984
Summary
Progress 21 launched on a Soviet Space Program Soyuz U from 31/6, Baikonur Cosmodrome, Republic of Kazakhstan on May 7, 1984. It was Soviet Space Program's 1,789th launch, 30th this year and humanity's 2,817th orbital launch attempt. It was the 362nd Soyuz U flight and the 11th this year. The payload was bound for low Earth orbit (LEO). Progress-21, one of 3 catalogued objects, reached a 196 × 243 km orbit inclined 51.6°. The spacecraft was Progress 21 (Progress 21 (No.121)). 3 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Soyuz U · Soviet Space Program
- Booster
- No booster details on record.
- Mission
- Resupply · Low Earth Orbit (LEO)
- Milestone
- 362nd Soyuz U flight · 11th this yearSoviet Space Program's 1,789th launch30th this yearhumanity's 2,817th orbital launch attempt42nd orbital launch attempt this year
Spacecraft
Progress 21 (Progress 21 (No.121))
Progress 21 (Russian: Прогресс 21), was a Progress spacecraft used to resupply the space station Salyut 7.
- Destination: Salyut 7
- Mission length: 18 days
- Docked May 10, 1984 at Salyut-7 aft
The Progress spacecraft burned up upon entering Earth's atmosphere.
Flight preview
Orbit: as tracked
Progress-21 · NORAD 14961 · 1984-042 · Space-Track · tracking 1 of 3 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 1984-042A
- Epoch
- 1984-05-07 22:35:57 UTC
- Mean motion
- 16.22644792 rev/day
- Eccentricity
- 0.0036251
- Inclination
- 51.619°
- Ascending node
- 217.7547°
- Arg. of perigee
- 81.6048°
- Mean anomaly
- 278.9078°
- Element set
- 999
- Rev at epoch
- 0
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: LEO. Ascent drawn from padside's representative profile.
Catalogued objects
3 catalogued: 1 payload, 1 rocket stage, 1 component
- Progress-21 · NORAD 14961 · docked May 10, 1984
Soyuz-U No. 399 Blok-I · re-entered May 10, 1984
Data from J. McDowell, planet4589.org
About this launch
Progress 21 was an uncrewed Progress 7K-TG cargo spacecraft that delivered propellant, water, food and equipment to the Salyut 7 space station. After unloading it was undocked and destroyed on reentry.
Pad
31/6, Baikonur Cosmodrome, Republic of Kazakhstan
274th launch from 31/6, 7th this year · 706th from Baikonur Cosmodrome, Republic of Kazakhstan
430 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
22 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did Progress 21 launch?
Progress 21 launched on May 7, 1984. The time is known to the hour, not the minute.
Where can I watch Progress 21?
No webcast is on record for this launch.
What rocket launched Progress 21?
Soyuz U, flown by Soviet Space Program. Soyuz U spec sheet
Where did Progress 21 launch from?
31/6, Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit did Progress 21 reach?
Progress-21, one of 3 catalogued objects, reached a 196 × 243 km orbit inclined 51.6°.