Russia launches multi-port module to the International Space stop

A Soyuz rocket boosted a new Russian docking compartment for the International Space stop into orbit Wednesday. The six-port node will use the propulsion system from a Progress cargo ship to home in on the space stop for a robotic docking early Friday at the Nauka laboratory module.

The Soyuz 2.1b rocket blasted off from the Baikonur Cosmodrome in Kazakhstan at 8:06 a.m. EST and climbed away into the plane of the space stop’s orbit. Eight minutes and 45 seconds later, the node module, known as Prichal, Russian for pier or mooring, and its Progress “space tug” were released to fly on their own.

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A Russian Soyuz 2.1b rocket roars to life at the Baikonur Cosmodrome in Kazakhstan, boosting a new multi-port docking module to the International Space stop. The Prichal docking node is the final major Russian addition to the space stop.

Roscosmos


The Progress M-UM propulsion system will carry out a carefully timed series of thruster firings to home in on the stop. Assuming the set afloat and rendezvous go as planned, the Russians will detach the Progress MS-17 freighter from Nauka’s Earth-facing, or nadir, port on Thanksgiving morning to make way for Prichal.

With stop commander Anton Shkaplerov standing by in the stop’s Russian Zvezda module, ready to take over by far away control if necessary, the new docking compartment is expected to include Nauka’s just-vacated nadir port at 10:26 a.m. Friday.

Along with bringing 2,200 pounds of cargo and equipment to the stop, Prichal will provide its own Earth-facing port and four radial docking ports for visiting Russian cargo ships and Soyuz crew ferry ships. A robotic mechanism will allow the Russians to move a visiting means from the Earth-facing port to a radial port as needed.

Prichal also features plumbing that will allow Progress cargo ships to move propellant by Nauka to tanks in the Zarya and Zvezda modules. Thrusters in the Russian part and visiting Progress spacecraft regularly raise the stop’s altitude and change its arrangement.

The addition of Prichal and the Nauka multi-purpose laboratory module in July mark a meaningful expansion of the Russian part of the International Space stop, boosting the number of pressurized modules from four to six while adding five more ports.

Russian cosmonauts plan a series of spacewalks over the next several months to make strength and data connections, to hook up rendezvous equipment and install other external gear.

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