Russian Federal Space Agency (ROSCOSMOS)Soyuz U1/5, Baikonur Cosmodrome, Republic of Kazakhstan
Soyuz TM-23
Launched
February 21, 1996

Summary
Soyuz TM-23 launched on a Russian Federal Space Agency (ROSCOSMOS) Soyuz U from 1/5, Baikonur Cosmodrome, Republic of Kazakhstan on February 21, 1996. It was Russian Federal Space Agency (ROSCOSMOS)'s 58th launch, 1st this year and humanity's 4,053rd orbital launch attempt. It was the 617th Soyuz U flight and the 1st this year. The payload was bound for low Earth orbit (LEO). Soyuz TM-23, one of 2 catalogued objects, reached a 207 × 241 km orbit inclined 51.6°. 2 crew members flew: Yury Onufriyenko and Yury Usachov. The spacecraft was Soyuz TM-23 (Soyuz TM 11F732A51 #72). 2 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Booster
- No booster details on record.
- Mission
- Human Exploration · Low Earth Orbit (LEO)
- Milestone
- 617th Soyuz U flight · 1st this yearRussian Federal Space Agency (ROSCOSMOS)'s 58th launch1st this yearhumanity's 4,053rd orbital launch attempt12th orbital launch attempt this year
Launch crew
Yury OnufriyenkoCommander · RFSA · age 35 · first flight
Yury UsachovFlight Engineer · RFSA · age 38 · 2nd flight
Landing crew
Claudie HaigneréResearch Cosmonaut · ESA
Yury OnufriyenkoCommander · RFSA
Yury UsachovFlight Engineer · RFSA
Spacecraft
Soyuz TM-23 (Soyuz TM 11F732A51 #72)
Soyuz TM-23 was a Soyuz spacecraft which launched on 21 February 1996 12:34 UTC. It transported two members of the Expedition 21 crew to Mir. The crew consisted of Yuri Onufrienko and Yury Usachov.
- Destination: Mir
- Mission length: 193 days
- Docked February 23, 1996 at Mir Core aft
The Soyuz spacecraft safely landed in Kazakhstan.
Flight preview
Orbit: as tracked
Soyuz TM-23 · NORAD 23798 · 1996-011 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- SOYUZ-TM 23
- Object ID
- 1996-011A
- Epoch
- 1996-02-21 13:51:30 UTC
- Mean motion
- 16.20964469 rev/day
- Eccentricity
- 0.0025633
- Inclination
- 51.6168°
- Ascending node
- 348.7525°
- Arg. of perigee
- 67.0252°
- Mean anomaly
- 293.3501°
- 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: LEO. Ascent drawn from padside's representative profile.
Catalogued objects
2 catalogued: 1 payload, 1 rocket stage
- Soyuz TM-23 · NORAD 23798 · docked February 23, 1996
Soyuz-U No. 651 Blok-I · re-entered February 24, 1996
Data from J. McDowell, planet4589.org
About this launch
Soyuz TM-23 was the 25th mission and the 21st long-duration expedition to Mir space station. It was also a part of the US/Russian Shuttle-Mir Program. The mission began on February 21, 1996, 12:34:05 UTC, launching Commander Yuri Onufrienko and Flight Engineer Yury Usachov into orbit. They docked with Mir two days later. During their stay there, cosmonauts performed several EVAs and various scientific experiments. Station crew was visited by several Progress resupply spacecrafts, STS-76, and welcomed aboard Soyuz TM-24 with the next expedition crew. The mission concluded with a safe landing back on Earth on September 2, 1996, 07:41:40 UTC.
Pad

1/5, Baikonur Cosmodrome, Republic of Kazakhstan
336th launch from 1/5, 1st this year · 1,071st from Baikonur Cosmodrome, Republic of Kazakhstan
487 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
64 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did Soyuz TM-23 launch?
Soyuz TM-23 launched on February 21, 1996. The time is known to the hour, not the minute.
Where can I watch Soyuz TM-23?
No webcast is on record for this launch.
What rocket launched Soyuz TM-23?
Soyuz U, flown by Russian Federal Space Agency (ROSCOSMOS). Soyuz U spec sheet
Where did Soyuz TM-23 launch from?
1/5, Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit did Soyuz TM-23 reach?
Soyuz TM-23, one of 2 catalogued objects, reached a 207 × 241 km orbit inclined 51.6°.
Which program is Soyuz TM-23 part of?
Mir and Soyuz. About Mir
![[AUTO] Soyuz U - image](/media?u=https%3A%2F%2Fthespacedevs-prod.nyc3.digitaloceanspaces.com%2Fmedia%2Fimages%2Fsoyuz2520u_image_20190222031023.jpeg&w=1600)