Soyuz MS-24

Soyuz MS-24

Soyuz MS-24 approaching the ISS
Names	ISS 70S
Mission type	ISS crew transport
Operator	Roscosmos
COSPAR ID	2023-143A
SATCAT no.	57862
Mission duration	203 days, 15 hours, 33 minutes and 12 seconds
Spacecraft properties
Spacecraft	Soyuz MS-25 No. 755
Spacecraft type	Soyuz MS
Manufacturer	Energia
Crew
Crew size	3
Members	Loral O'Hara
Launching	Oleg Kononenko Nikolai Chub
Landing	Oleg Novitsky Marina Vasilevskaya
Callsign	Antares
Start of mission
Launch date	15 September 2023, 15:44:35 (2023-09-15UTC15:44:35Z)  UTC
Rocket	Soyuz-2.1a
Launch site	Baikonur, Site 31/6
Contractor	RKTs Progress
End of mission
Landing date	6 April 2024, 07:17:47 (2024-04-06UTC07:17:48Z) UTC
Landing site	Kazakh Steppe, Kazakhstan ( 47°25′6.12″N69°38′56.22″E / 47.4183667°N 69.6489500°E / 47.4183667; 69.6489500 )
Orbital parameters
Reference system	Geocentric orbit
Regime	Low Earth orbit
Inclination	51.659°
Docking with ISS
Docking port	Rassvet nadir
Docking date	15 September 2023, 18:53:32 UTC
Undocking date	6 April 2024, 03:54:58 UTC
Time docked	203 days, 9 hours, 1 minute and 26 seconds
Mission patches: launch (left) and landing (right) Top: launching crew, from left: O'Hara, Kononenko, and Chub Bottom: landing crew, from left: O'Hara, Novitsky, and Vasilevskaya Soyuz programme (crewed) ←  Soyuz MS-23 Soyuz MS-25  →

Soyuz MS-24, Russian production No. 755 and identified by NASA as Soyuz 70S, was a Russian crewed Soyuz spaceflight launched from Baikonur on 15 September 2023 to the International Space Station. ^[1]

Crew

They were originally assigned to Soyuz MS-23, but they were moved to MS-24 due to a coolant leak on Soyuz MS-22 that required MS-23 to be launched uncrewed as its replacement and returned to Earth uncrewed. Oleg Kononenko was assigned for a one year long mission with his MS-24 crewmate Nikolai Chub that started on September 15, 2023. As the mission lasted 374 days, Kononenko spent a total of 1,111 days in space. He exceeded the previous record of 878 days held by Gennady Padalka on 4 February 2024. He later became the first person to stay 900, 1,000, and 1,100 days in space on 25 February 2024, 4 June 2024, and 12 September 2024 respectively.

Prime crew

Position	Launching crew member	Landing crew member
Commander	Oleg Kononenko, Roscosmos Expedition 69/70/71 Fifth spaceflight	Oleg Novitsky, Roscosmos 21st Visiting Expedition Fourth spaceflight
Flight Engineer/ Spaceflight Participant	Nikolai Chub, Roscosmos Expedition 69/70/71 First spaceflight	Marina Vasilevskaya, Belarus Space Agency [2] 21st Visiting Expedition First spaceflight
Flight Engineer	Loral O'Hara, NASA Expedition 69/70 First spaceflight

Backup crew

Position	Crew member
Commander	Aleksey Ovchinin, Roscosmos
Flight Engineer	Tracy Caldwell-Dyson, NASA [3]

Undocking and Return

At the end of Expedition 70, O'Hara returned to Earth on Soyuz MS-24 with Roscosmos cosmonaut Oleg Novitsky and Belarusian spaceflight participant Marina Vasilevskaya (both on ISS EP-21) on 6 April 2024. On the other hand, Kononenko and Chub remained onboard the ISS for a year and returned to Earth with NASA astronaut Tracy Caldwell-Dyson on Soyuz MS-25. As the mission lasted 374 days, Kononenko spent a total of 1,111 days in space by the time he returned to Earth. He broke the world record of 878 days in space held by Gennady Padalka on February 4, 2024 at 07:30:08 UTC. He later became the first person to stay 900, 1,000, and 1,100 days in space on 25 February 2024, 4 June 2024, and 12 September 2024 respectively. ^[4]

References

1. Zak, Anatoly (13 February 2023). "Space exploration in 2023". RussianSpaceWeb. Retrieved 16 February 2023.
2. "Belarusian female astronaut to go ISS in March 2024 — Roscosmos". TASS. Retrieved 30 May 2023.
3. Imgur. "imgur.com". Imgur. Retrieved 13 August 2022.
4. "Russian cosmonaut sets new record for most total time in space — more than 878 days". ABC. 4 February 2024. Archived from the original on 4 February 2024. Retrieved 4 February 2024.