SERVIS-1, or Space Environment Reliability Verification Integrated System 1, is a Japan

Japan

Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

ese satellite

Satellite

In the context of spaceflight, a satellite is an object which has been placed into orbit by human endeavour. Such objects are sometimes called artificial satellites to distinguish them from natural satellites such as the Moon....

 designed for testing the performance of commercial off-the-shelf

Commercial off-the-shelf

In the United States, Commercially available Off-The-Shelf is a Federal Acquisition Regulation term defining a nondevelopmental item of supply that is both commercial and sold in substantial quantities in the commercial marketplace, and that can be procured or utilized under government contract...

 products in the space environment. It has a mass of about 840kg, and was launched on 30 October 2003 from the Plesetsk Cosmodrome

Plesetsk Cosmodrome

Plesetsk Cosmodrome is a Russian spaceport, located in Arkhangelsk Oblast, about 800 km north of Moscow and approximately 200 km south of Arkhangelsk.-Overview:...

 by Eurockot, who used a Rokot rocket with a Briz-KM upper stage. The satellite was active for two years. A second satellite, SERVIS-2

SERVIS-2

SERVIS-2, or Space Environment Reliability Verification Integrated System 2, is a Japanese technological research satellite which was launched in 2010. It was constructed by Mitsubishi Electric, and will be operated by the Institute for Unmanned Space Experiment Free Flyer, USEF...

, was launched in 2010.

Experiments

Nine experiments were being conducted by SERVIS-1.

Name	Full name	Description	Remarks
VTS	Vane-type Propellant Tank System
INU	Integrated Navigation Unit
PCDS	Power Control and Distribution Unit
APDM	Advanced Paddle Drive Mechanism
ATTC	Advanced Tracking Telemetry and Command Transponder
OBC	On Board Computer
SIS	Integrated Satellite Controller with Star Sensor
LIB	Lithium Ion Battery System
FOIRU	Fibre Optic Gyro Inertial Reference Unit

Results from the mission

All the modules on the satellite worked as planned. The mission tested a number of electronic components, and determined that the rate of single-event upsets at its 1000km orbit was substantially less than had been expected from tests using heavy ion bombardment on the ground.