Mission typeTechnology
COSPAR ID2009-002F
SATCAT no.33497
Mission duration18 months
Spacecraft properties
Spacecraft typeSDS
Launch mass100 kilograms (220 lb)
Start of mission
Launch date23 January 2009, 03:54 (2009-01-23UTC03:54Z) UTC
RocketH-IIA 202
Launch siteTanegashima Yoshinobu 1
End of mission
Deactivated8 September 2010 (2010-09-09)
Orbital parameters
Reference systemGeocentric
Regimelow Earth
Perigee altitude671 kilometres (417 mi)
Apogee altitude671 kilometres (417 mi)
Inclination98.13 degrees
Period98.03 minutes
Epoch2 January 2014, 04:04:20 UTC

The Small Demonstration Satellite (SDS) is a spacecraft or satellite which is built as part of a JAXA programme to develop and demonstrate technology for and through small satellites. One of the mid-term goals is also to demonstrate formation flying. SDS-1 launched aboard an H-IIA rocket on 23 January 2009, as a secondary payload to GOSAT.[1] The operation finished successfully on September 8, 2010.[2]

The programme started in spring 2006, and continues on from the MicroLabSat spacecraft, which was launched on 14 December 2002, and ceased operations on 27 September 2006.

The following experiments were aboard:

  • MTP (Multi-mode integrated Transponder)
  • SWIM (SpaceWire demonstration Module)
  • AMI (Advanced Micro processing In-orbit experiment equipment)
  • TFC (Thin Film Solar Cell)
  • DOS (Small Dosimeter)
  • Small satellite bus technology experiment.

Total mass of the satellite is 100 kg.


  1. ^ press release dated 23 January 2009
  2. ^ "小型実証衛星1型(SDS-1)成果概要と運用終了" (PDF) (in Japanese). September 22, 2010. Retrieved September 23, 2010.

External links

  • eoPortal Directory - SDS-1