ARISSat 1 (Kedr)
Official name RADIOSCAF-B (KEDR)
Alternative name RadioSkaf-V
Cospar ID 1998-067CK
Norad ID 37772
Launch date 1998-11-20
Launch site TTMTR
Launch vehicle Soyuz-U
Country/Organization USA, Russia
Type application Communications, amateur
Operator ARISS
RCS size MEDIUM
Decay date 2012-01-04
Shape Box + 1 Ant
Mass (kg) 30
Height (m) 0.5
Width (m) 0.4
Depth (m) 0.4
Span (m^2) 0.8
Lifetime 6 months
Propulsion None
Power Solar cells, batteries

ARISSat 1 (RadioSkaf 2, Kedr) is a small technology and amateur communications satellite. With a mass of 30 kg it measures 55 × 55 × 40 cm.

Originally planned to be based on an Orlan spacesuit like RadioSkaf (SuitSat 1), but was later reconfigured to be a boxlike structure to fly on its own, as due to storage considerations, the two surplus Orlan space suits in storage on the International Space Station (ISS) were discarded via the Progress Cargo Vessel earlier this year. The project team wass moving ahead, using the same hardware that was to fly in the Russian Orlan suit. Russia will continue to call the satellite RadioSkaf-2, so ARISS is designating it ARISSat-1/RadioSkaf-2.

The satellite was transported piggy back by the Progress-M 09M cargo spacecraft to the ISS and was hand launched during a space walk on 3. October 2011.

ARRISSat 1 reentered on 4 January 2012.

Satellite COSPAR Date LS Launch Vehicle Remarks
RADIOSCAF-B (KEDR) 1998-067CK 1998-11-20 TTMTR Soyuz-U with Progress-M 09M