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Progress M-41



An improved version of cargo freighters used to supply the Mir space station, the Progress M series had greater cargo capacity, a modernized approach/docking system and carried 2 solar panels to generate electrical power. Progress M can fly for 30 days independently and 108 days docked with Mir. Spare propellent in Progress M's tanks can be transferred to Mir before it is consigned to burn up in reentry. In the past, extra fuel was abandoned with the craft. Future Progress vehicles will carry a recoverable reentry capsule for the speedy return of up to 150 kg of material from Mir to earth.

Progress M-41 was launched from the Baikonur cosmodrome aboard a Soyuz booster rocket. It docked uneventfully with the Mir complex 2 days after launch. It also delivered the Sputnik-99 amateur radio satellite, launched into orbit by hand by the cosmonauts during an EVA on April 16. Still hopeful of finding a backer to pay to keep Mir in space, Progress M-41 began a series of engine burns in late April to raise the orbit of the station.

Alternate Names

  • 25664
  • ProgressM-41

Facts in Brief

Launch Date: 1999-04-02
Launch Vehicle: Soyuz-U
Launch Site: Tyuratam (Baikonur Cosmodrome), Kazakhstan

Funding Agency

  • Unknown (Russia)


  • Resupply/Refurbishment/Repair
  • Human Crew

Additional Information

Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office

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