Progress MS-27

Progress MS-27

Progress MS-27 approaches the ISS
Names	Progress 88 ISS 88P
Mission type	ISS resupply
Operator	Roscosmos
COSPAR ID	2024-103A
SATCAT no.	59913
Mission duration	173 days, 7 hours and 8 minutes
Spacecraft properties
Spacecraft	Progress MS-27 No. 457[1]
Spacecraft type	Progress MS
Manufacturer	Energia
Launch mass	7,280 kg (16,050 lb)[2]
Payload mass	2,504 kg (5,520 lb)
Start of mission
Launch date	30 May 2024, 09:42:59 (30 May 2024, 09:42:59) UTC (14:42:59 AQTT)[3]
Rocket	Soyuz-2.1a
Launch site	Baikonur, Site 31/6
Contractor	RKTs Progress
End of mission
Disposal	Deorbited
Decay date	19 November 2024, 16:51 (19 November 2024, 16:51) UTC[4]
Orbital parameters
Reference system	Geocentric orbit
Regime	Low Earth orbit
Inclination	51.65°
Docking with ISS
Docking port	Poisk zenith
Docking date	1 June 2024, 11:46:11 UTC[4]
Undocking date	19 November 2024, 12:53 UTC[4]
Time docked	171 days, 1 hour and 6 minutes
Cargo
Mass	2,504 kg (5,520 lb)
Pressurised	1,290 kg (2,840 lb)
Fuel	754 kg (1,662 lb)
Gaseous	40 kg (88 lb)
Water	420 kg (930 lb)
Progress flights ← Progress MS-26 Progress MS-28 →

Progress MS-27 (Russian: Прогресс МC-27), Russian production No. 457, identified by NASA as Progress 88, is a Progress spaceflight launched by Roscosmos to resupply the International Space Station (ISS). It is the 180th flight of a Progress spacecraft.

The spacecraft, Progress MS-27 No. 457 arrived at the Baikonur Cosmodrome on 14 September 2023 after being shipped from Energia manufacturing facility in Russia by rail. The spacecraft underwent several months of pre-launch preparations including inspections, testing, fueling, and integration with the Soyuz-2.1a launch vehicle. After several schedule adjustments, the spacecraft was launched on 30 May 2024 at 09:42:59 UTC (14:42:59 AQTT, local time at the launch site). After a nominal two-day free flight, it docked with the zenith (space facing) port of the ISS's Poisk module on 1 June at 11:46:11 UTC.^[4]

After a nearly six-month stay at the ISS supporting Expedition 71, Progress MS-27 undocking on 19 November 2024, at 12:53 UTC, to make way for a new cargo vehicle. After a free flight of about three and a half hours, the spacecraft initiated a deorbit burn at 16:11 UTC. It reentered Earth's atmosphere and disintegrated over the Pacific Ocean, with debris projected to impact the ocean at 16:51 UTC.^[4]

Each Progress mission delivers over a thousand kilograms of supplies in its pressurized section, accessible to crewmembers. These supplies include consumables such as food, water, and air, along with equipment for maintenance and scientific research. In its unpressurized section, the spacecraft carries tanks of water, fuel, and gases to replenish the station’s resources and sustain its onboard atmosphere. These resources are transferred to the station through an automated process.^[5]

For this mission, Progress MS-27 was loaded with a total of 2,504 kg (5,520 lb) of cargo and supplies prior to launch. The cargo manifest includes the following:^[4]

• Pressurized supplies: 1,290 kg (2,840 lb)
• Fuel: 754 kg (1,662 lb)
• Water: 420 kg (930 lb)
• Nitrogen gas: 40 kg (88 lb)

• Uncrewed spaceflights to the International Space Station