|Mission duration||18 months|
|Launch mass||100 kilograms (220 lb)|
|Start of mission|
|Launch date||23 January 2009, 03:54UTC|
|Launch site||Tanegashima Yoshinobu 1|
|End of mission|
|Deactivated||8 September 2010|
|Perigee altitude||671 kilometres (417 mi)|
|Apogee altitude||671 kilometres (417 mi)|
|Epoch||2 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. The operation finished successfully on September 8, 2010.
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:
Total mass of the satellite is 100 kg.