SDS-1

This article is about the Japanese demonstration satellite. For the US communication satellites, see Satellite Data System.

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]

SDS-1

Mission type	Technology
Operator	JAXA
COSPAR ID	2009-002F
SATCAT no.	33497
Mission duration	18 months
Spacecraft properties
Spacecraft type	SDS
Launch mass	100 kilograms (220 lb)
Start of mission
Launch date	23 January 2009, 03:54 (2009-01-23UTC03:54Z) UTC
Rocket	H-IIA 202
Launch site	Tanegashima Yoshinobu 1
Contractor	Mitsubishi
End of mission
Disposal	Decommissioned
Deactivated	8 September 2010 (2010-09-09)
Orbital parameters
Reference system	Geocentric
Regime	low Earth
Perigee altitude	671 kilometres (417 mi)
Apogee altitude	671 kilometres (417 mi)
Inclination	98.13 degrees
Period	98.03 minutes
Epoch	2 January 2014, 04:04:20 UTC

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.