Progress M-UM

Progress M-UM

Mission type	ISS resupply, assembly (Prichal module)
Operator	Roscosmos
COSPAR ID	2021-111A
SATCAT no.	49499
Mission duration	30 days (planned)
Spacecraft properties
Spacecraft	Progress M-UM
Spacecraft type	Progress M (modified) (including hardwares from progress MS)
Manufacturer	Energia
Launch mass	8180 kg
Start of mission
Launch date	24 November 2021, 13:06 UTC (planned)
Rocket	Soyuz-2.1b
Launch site	Baikonur, Site 31
Contractor	Progress Rocket Space Centre
End of mission
Disposal	Deorbited (planned)
Decay date	22 December 2021 (planned)
Orbital parameters
Reference system	Geocentric orbit
Regime	Low Earth orbit
Inclination	51.65°
Docking with ISS
Docking port	Nauka nadir (Prichal)
Docking date	26 November 2021, 15:25 UTC (planned)
Undocking date	21 December 2021, 22:20 UTC (planned)
Time docked	26 days (planned)
Payload
Prichal
Mass	4,650 kilograms (10,250 lb) (module mass + 700 kilograms (1,500 lb) goods mass)
Progress ISS Resupply

External images
Prichal module / Progress M-UM launch mission logo
Line diagram of module and Progress M-UM spacecraft

Progress M-UM (Russian: Прогресс М-UM), is a specially modified Progress M 11F615A55, Russian production No. 303, is planned to be launched by Roscosmos to deliver the Prichal module to the Russian Orbital Segment (ROS) of the International Space Station (ISS). It will be launched along with a Progress M propulsion compartment and has the pressurised cargo module removed to accommodate Prichal. This is will be the 171st flight of a Progress spacecraft. It will be the final flight of a Progress M and the first launch of a Progress spacecraft on a Soyuz 2.1b.

Development

On Jan. 15, 2011, RKK Energia announced that its Scientific and Technical Council, NTS, had reviewed and approved the preliminary design of the Node Module and associated hardware, including:

A special version of the Progress cargo ship designated the Progress M-UM spacecraft-module, intended for the delivery of the Node Module to the station; The space payload section, KGCh, for the Progress M-UM;

The adaptation of the Soyuz rocket for the launch of the Progress M-UM spacecraft-module. It was eventually signed for as completed in 2014 and kept in storage till processing and attachment with prichal was started for launch in 2021.

The Prichal module will become the second addition to the Russian Orbital Segment in 2021. Earlier modules were delivered and added to the Russian Orbital Segment in a similar manner. Progress M-UM is similar in design to Progress DC-1 and Progress M-MIM2, but with navigational systems and avionics hardware taken from the Progress MS. It is attached to Prichal Module by means of a newly developed transition compartment.

Launch

A Soyuz 2.1 launch with ST-type fairing

A Soyuz-2.1b will launch Progress M-UM to the International Space Station from Baikonur Site 31/6 on 24 November 2021 for delivery of the Prichal module. Due to the larger diameter of the Prichal module, the Progress M-UM will be launched in a 4.1m wide ST- type fairing.

Docking

Russia's ISS Progress 78 cargo craft is pictured docked to the Nauka. At its departure, the port will be reconfigured by it for Progress M-UM docking.

Two days after launch, Progress M-UM will automatically dock Prichal to the re-configured nadir (or Earth-facing) port of the Nauka module after removal of the module's nadir docking adapter by Progress MS-17. Progress M-UM will then remain in orbit for 30 days.

Expansion of Russian Orbital Segment

The ISS flight manifest drafted by Roscosmos at the end of summer 2020 set the launch of the UM Prichal module for 6 September 2021, with the docking to Nauka's nadir port two days later. However, on 1 December 2020, the launch of UM Prichal slipped to three and four months after the Nauka. The current planned launch date is 24 November 2021.

One port on Prichal is equipped with an active hybrid docking port, which enables docking with the Nauka/MLM module. The remaining five ports are passive hybrids, enabling docking of Soyuz and Progress vehicles, as well as heavier modules and future spacecraft with modified docking systems.

A spacewalk is planned after Prichal's arrival at the station, with a second spacewalk planned for early fourth quarter of 2021. Six additional spacewalks will follow through 2022 to complete the integration of the Nauka and Prichal modules into the Russian Orbital Segment.

The Poisk module was delivered to ISS in 2009 by a modified Progress-M 11F615A55 spacecraft called Progress M-MIM2, with the pressurised cargo module removed to accommodate Poisk. The Pirs module was delivered in 2001 by a similar modified Progress-M called Progress M-SO1 spacecraft.

Undocking and decay

The Progress M-UM propulsion section is planned to remain docked at the station for 26 days. The Propulsion section will then undock, revealing Prichal's nadir docking port for future Russian spacecraft. The Propulsion section will re-enter the Earth's atmosphere for destruction over the South Pacific Ocean. A contingency spacewalk to perform a backup separation of the spacecraft from Prichal should the automated release mechanisms fail.

See also

• Uncrewed spaceflights to the International Space Station
• Prichal (ISS module)
• Orbital Piloted Assembly and Experiment Complex - proposed complex (scrapped in September 2017)
• Universal Docking Module - former name Uzlovoy Module (eventually Prichal)

References

• Russian Launch Manifest dated 23 July 2014