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[b]Specialists have worked out test corrections of the orbit of the Nauka module[/b] On Thursday, July 22, 2021, the Nauka Multipurpose Module Flight Control Group specialists at Moscow Mission Control Center conducted two correction maneuvers of the module that had launched to the International Space Station the previous day. The first maneuver took place at 15:07 UTC with the module engines burn for 17.23 seconds giving an impulse of 1 m/sec. The second burn for 250.04 seconds took place at 17:19 UTC with an impulse of 14.59 m/sec. Orbit parameters after two burns: [list][*]Orbital period: 90.17 minutes; [*]Orbit inclination: 51.64 degrees; [*]Perigee altitude: 230.43 km; [*]Apogee altitude: 364.86 km;[/list] Thus, the telemetry confirmed the module propulsion unit operability. Additional burns for further orbit correction are scheduled for July 23. The Pirs module is to undock from the ISS and deorbit on Saturday, July 24.
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