Contents

Progress MS-24

Progress MS-24

Progress MS-24 approaching the ISS
Names	Progress 85P
Mission type	ISS resupply
Operator	Roscosmos
COSPAR ID	2023-125A
SATCAT no.	57691
Mission duration	174 days, 4 hours and 8 minutes
Spacecraft properties
Spacecraft	Progress MS-24 no.454
Spacecraft type	Progress MS
Manufacturer	Energia
Launch mass	7000 kg
Start of mission
Launch date	23 August 2023, 01:08 UTC[1][2]
Rocket	Soyuz-2.1a
Launch site	Baikonur, Site 31
Contractor	Progress Rocket Space Centre
End of mission
Disposal	Deorbited
Decay date	13 February 2024, 05:16 UTC
Orbital parameters
Reference system	Geocentric orbit
Regime	Low Earth orbit
Inclination	51.65°
Docking with ISS
Docking port	Zvezda aft
Docking date	25 August 2023, 03:45 UTC[1][2]
Undocking date	13 February 2024, 02:09 UTC
Time docked	171 days, 22 hours and 24 minutes
Progress ISS Resupply ← Progress MS-23 Progress MS-25 →

Progress MS-24 (Russian: Прогресс МC-24), Russian production No.454, identified by NASAasProgress 85P, is a Progress spaceflight launched by Roscosmos to resupply the International Space Station (ISS).^[1][2] It is the 177th flight of a Progress spacecraft.

History[edit]

The Progress-MS is an uncrewed freighter based on the Progress-M featuring improved avionics. This improved variant first launched on 21 December 2015. It has the following improvements:^[3][4][5]

• New external compartment that enables it to deploy satellites. Each compartment can hold up to four launch containers. First time installed on Progress MS-03.
• Enhanced redundancy thanks to the addition of a backup system of electrical motors for the docking and sealing mechanism.
• Improved Micrometeoroid (MMOD) protection with additional panels in the cargo compartment.
• Luch Russian relay satellites link capabilities enable telemetry and control even when not in direct view of ground radio stations.
• GNSS autonomous navigation enables real time determination of the status vector and orbital parameters dispensing with the need of ground station orbit determination.
• Real time relative navigation thanks to direct radio data exchange capabilities with the space station.
• New digital radio that enables enhanced TV camera view for the docking operations.
• Unified Command Telemetry System (UCTS) replaces previous Ukrainian Chezara Kvant-V as the Progress spacecraft's on-board radio and antenna/feeder system.
• Replacement of the Kurs A with Kurs NA digital system.^[2]

Launch[edit]

ASoyuz-2.1a launched Progress MS-24 to the International Space Station from Baikonur Site 31 on 23 August 2023.^[6] Around 2 days after the launch, Progress MS-24 automatically docked with Zvezda and continues its mission, supporting Expedition 70 aboard the ISS.^[6]

Cargo[edit]

The MS-24 cargo capacity is 2,500 kg (5,500 lb) as follows:^[7][8]

• Dry cargo: 1,535 kg (3,384 lb)
• Fuel: 500 kg (1,100 lb)
• Oxygen: 0
• Nitrogen: 40 kg (88 lb)
• Water: 420 kg (930 lb)^[9]

See also[edit]

• Uncrewed spaceflights to the International Space Station

References[edit]