Technical Research on ISS Russian Segment

Experiment Radioskaf


  • Test a technology for producing PadioSkaf supersmall satellite for various utilization purposes based on the Orlan-M spacesuits with a depleted service life.
  • Conduct development test of the mini-satellite hardware in the following autonomous mission, receive service and mission information from the satellite to the ground radio amateur station.


  • Develop mini-satellite technology based on the Orlan-M spacesuit with a depleted service life.
  • Test a crew procedure for mini-satellite hardware mounting in a spacesuit onboard the ISS RS.
  • Test a procedure for bulky equipment airlocking and retrieving from the docking compartment during the egress (EVA).
  • Test a procedure for crew manual injection of a mini-satellite during EVA into a coordinated orbit with a safe trajectory plan.
  • Test a procedure for collecting housekeeping and payload information from the mini-satellite.
  • Study the mini-satellite behavior in the course of an autonomous flight in the absence of the stabilization and attitude systems.
  • Conduct a development test of the mini-satellite hardware operation in a spaceflight.
  • Perform an experimental assessment of the mini-satellite in-orbit lifetime.

Microsatellites "RadioSkaf" in the flight

Science Hardware Used:

Mini-satellite RadioSkaf consisting of:

  • Spacesuit Orlan-M
  • Radio station unit
  • Control unit
  • Radio station (ribbon-type) antenna
  • Digitalker unit
  • Cable network and connectors
  • Self-contained power supply
  • Structural elements (safety tether and bracket lever to hold and relocate the mini-satellite by a cosmonaut, mounting bracket for antenna and control unit, soft container for hardware attachment).

Flight Equipment Used:

  • Digital camera Nikon D1X;
  • Camera Nikon F5.

Ground hardware segment:

  • Mini-satellite control center established based on S.P. Korolev RSC Energia radio amateur communication station.


  • PCMCIA card,
  • 35 mm film.

Expected Results:

Use of spacesuits depleted their service life and subject to be disposed for accommodation of the scientific hardware set in their internal pressurized volume will allow to simplify requirements for design concept of various student research devices being part of the mission mini-satellite scientific hardware.
Use of the radio amateur station as part of the mini-satellite command and telemetry system will allow to create a wide network of communication stations in the institutes of higher education all over the world to receive information from the mini-satellites with minimum financial expenditures.

Experiment Results:

  • Injection of mini-satellite RadioSkaf into a specified orbit during EVA.
  • Housekeeping and payload information received from the mini-satellite hardware during its autonomous flight.
  • Photo and video information received during EVA.

ISS Crew

Hoshide  AkihikoHoshide

leg Novitskiy Novitskiy

Petr Dubrov Dubrov

Mark Vande Hei Vande Hei

Robert Shane

Megan McArthur McArthur