Nodal module Prichal also known as Uzlovoy Module or UM (Russian: Узловой Модуль "Причал", Nodal Module Berth) is a Russian spacecraft which will form part of the International Space Station (ISS). It was approved in 2011 and is scheduled for launch on November 24, 2021, with operations beginning in 2022. Originally, the node module was intended to serve as the only permanent element of the future Orbital Piloted Assembly and Experiment Complex (OPSEK), but those plans were scrapped in 2017.