Human Spaceflights

International Flight No. 329

Soyuz MS-21

Sergei P. Korolev



Patch Soyuz MS-21

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Launch, orbit and landing data

Launch date:  18.03.2022
Launch time:  15:55:18.451 UTC
Launch site:  Baikonur
Launch pad:  31
Altitude:  416 - 421 km
Inclination:  51.64°
Docking ISS:  18.03.2022, 19:12:06 UTC
Undocking ISS:  29.09.2022, 07:34:20 UTC
Landing date:  29.09.2022
Landing time:  10:57:11 UTC
Landing site:  47°23'N, 69°39'E

walkout photo

Crew Soyuz MS-21

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No.   Surname Given names Position Flight No. Duration Orbits
1  Artemyev  Oleg Germanovich  Commander 3 194d 19h 01m 53s  3120 
2  Matveyev  Denis Vladimirovich  Flight Engineer 1 194d 19h 01m 53s  3120 
3  Korsakov  Sergei Vladimirovich  Flight Engineer 1 194d 19h 01m 53s  3120 

Crew seating arrangement

1  Artemyev
2  Matveyev
3  Korsakov
Soyuz MS spacecraft
1  Artemyev
2  Matveyev
3  Korsakov

Backup Crew

No.   Surname Given names Position
1  Prokopyev  Sergei Valerievich  Commander
2  Petelin  Dmitri Aleksandrovich  Flight Engineer
3  Kikina  Anna Yuryevna  Flight Engineer
Crew Soyuz MS-21 (backup)
Patch Soyuz MS-21 (backup)

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Launch vehicle:  Soyuz-2.1a (No. S15000-050)
Spacecraft:  Soyuz MS-21 (MS No. 750)


Launch from the Baikonur Cosmodrome. Landing 148 km southeast of Dzheskasgan (planned).

Following a three hour solo flight Soyuz MS-21 docked at 19:12:06 UTC with the Prichal module of the International Space Station. Oleg Artemyev, Denis Matveyev and Sergei Korsakov became Flight Engineer of the Expedition 66.

The Soyuz spacecraft is composed of three elements attached end-to-end - the Orbital Module, the Descent Module and the Instrumentation/Propulsion Module. The crew occupied the central element, the Descent Module. The other two modules are jettisoned prior to re-entry. They burn up in the atmosphere, so only the Descent Module returned to Earth.
The deorbit burn lasted 320 seconds. Having shed two-thirds of its mass, the Soyuz reached Entry Interface - a point 400,000 feet (121.9 kilometers) above the Earth, where friction due to the thickening atmosphere began to heat its outer surfaces. With only 23 minutes left before it lands on the grassy plains of central Asia, attention in the module turned to slowing its rate of descent.
Eight minutes later, the spacecraft was streaking through the sky at a rate of 755 feet (230 meters) per second. Before it touched down, its speed slowed to only 5 feet (1.5 meter) per second, and it lands at an even lower speed than that. Several onboard features ensure that the vehicle and crew land safely and in relative comfort.
Four parachutes, deployed 15 minutes before landing, dramatically slowed the vehicle's rate of descent. Two pilot parachutes were the first to be released, and a drogue chute attached to the second one followed immediately after. The drogue, measuring 24 square meters (258 square feet) in area, slowed the rate of descent from 755 feet (230 meters) per second to 262 feet (80 meters) per second.
The main parachute was the last to emerge. It is the largest chute, with a surface area of 10,764 square feet (1,000 square meters). Its harnesses shifted the vehicle's attitude to a 30-degree angle relative to the ground, dissipating heat, and then shifted it again to a straight vertical descent prior to landing.
The main chute slowed the Soyuz to a descent rate of only 24 feet (7.3 meters) per second, which is still too fast for a comfortable landing. One second before touchdown, two sets of three small engines on the bottom of the vehicle fired, slowing the vehicle to soften the landing.

Graphics / Photos

Soyuz MS Soyuz MS
Soyuz MS crew in training
crew in training Soyuz MS-21 rollout
Soyuz MS-21 erection Soyuz MS-21 erection
Soyuz MS-21 on the launch pad Soyuz MS-21 launch
Soyuz MS-21 landing Soyuz MS-21 recovery


Last update on September 30, 2022.