Progress MS-11

Progress MS-11

Progress MS-11 approaches the ISS
Names	Progress 72P
Mission type	ISS resupply
Operator	Roscosmos
COSPAR ID	2019-019A
SATCAT no.	44110
Mission duration	116 days
Spacecraft properties
Spacecraft	Progress MS-11 n/s 441
Spacecraft type	Progress-MS
Manufacturer	Energia
Launch mass	7400 kg
Payload mass	3400 kg
Start of mission
Launch date	4 April 2019, 11:01:34 UTC[1]
Rocket	Soyuz-2.1a (s/n Ya15000-036)
Launch site	Baikonur, Site 31/6
Contractor	RKTs Progress
End of mission
Disposal	Deorbited
Decay date	29 July 2019
Orbital parameters
Reference system	Geocentric orbit
Regime	Low Earth orbit
Inclination	51.67°
Docking with ISS
Docking port	Pirs
Docking date	4 April 2019, 14:22:26 UTC [1]
Undocking date	29 July 2019, 10:43 UTC
Time docked	116 days
Cargo
Mass	3400 kg
Pressurised	1400 kg
Fuel	900 kg
Gaseous	47 kg
Water	420 kg
Progress flights ← Progress MS-10 Progress MS-12 →

Progress MS-11 (Russian: Прогресс МC-11), identified by NASA as Progress 72P, was a Progress spaceflight operated by Roscosmos to resupply the International Space Station (ISS). This was the 163rd flight of a Progress spacecraft.

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:^[2][3][4]

• 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.
• The Ukrainian Chezara Kvant-V on board radio system and antenna/feeder system has been replaced with a Unified Command Telemetry System (UCTS).
• Replacement of the Kurs A with Kurs NA digital system.

In 2014, the launch was scheduled for 16 April 2018. In November 2018, delays with the launch of the EgyptSat-A spacecraft and required the launch to 28 March 2019, the Kommersant newspaper reported. In January 2019, RIA Novosti reported that the launch had been pushed to 4 April 2019.^[5]

Progress MS-11 launched on 4 April 2019, at 11:01:34 UTC ^[1] from the Baikonur Cosmodrome in Kazakhstan. It used a Soyuz-2.1a rocket.^[6][7]

Progress MS-11 docked with the docking port of the Pirs module just 3 hours and 22 minutes after the launch, at 14:22:26 UTC.^[8]

The Progress MS-11 spacecraft delivered 3,400 kg of cargo, with 1,400 kg of this being dry cargo. The following is a breakdown of cargo bound for the ISS:^[5]

• Dry cargo: 1,400 kg
• Fuel: 900 kg
• Compressed Air: 47 kg
• Water: 420 kg (Rodnik system)

Equipment for several life science experiments, including Bioplenka, Konstanta-2, Produtsent, Mikrovir, Struktura, Biodegradatsiya and Kristallizator. The spacecraft also carried the Faza vessel for growing water plants and the associated lighting system for the Ryaska educational experiment.^[5]

It undocked at 10:43 UTC, on 29 July 2019. And decay in the atmosphere and its debris entered the Pacific Ocean, on the same day.

• Uncrewed spaceflights to the International Space Station