SERVIS-2
Encyclopedia
SERVIS-2, or Space Environment Reliability Verification Integrated System 2, is a Japan
ese 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. It follows on from the SERVIS-1
spacecraft, which was launched in 2003.
at the Plesetsk Cosmodrome
in Russia
. Eurockot, who were also responsible for launching the SERVIS-1 spacecraft, were awarded the contract to launch SERVIS-2 on 21 February 2007.
SERVIS-2 arrived at the Plesetsk Cosmodrome on 26 April 2010. Prior to launch, the spacecraft underwent final testing and fuelling, and was subsequently attached to its launch adaptor on 22 May. This was attached to the upper stage the next day, and the day after that the spacecraft was encapsulated in the payload fairing
. Under terminology used by Eurockot, as well as several other launch service provider
s, the combination of spacecraft, adaptor, upper stage and fairing was designated the Upper Composite. This was transported to the launch pad on 27 May for integration with the first two stages of the rocket. The launch occurred successfully at 01:59 UTC on 2 June 2010.
equipment. The spacecraft has a design life of one year, and its Solar panels will provide it with at least 1,300 watts of power.
SERVIS-2 operates in a Sun-synchronous
low Earth orbit
, at an altitude of 1200 kilometres (745.6 mi) and an inclination
of 100.4 degrees.
The Commercial Parts Test Unit on SERVIS-2 is carrying 4Mbit and 8Mbit SRAM chips, 256Mbit and 512Mbit DRAM chips, 128kbit SOI SRAM chips made on a 180nm process, and NOR-type 128Mbit flash memory chips.
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 technological research 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....
which was launched in 2010. It was constructed by Mitsubishi Electric
Mitsubishi Electric
is a multinational electronics and information technology company headquartered in Tokyo, Japan. It is one of the core companies of the Mitsubishi Group....
, and will be operated by the Institute for Unmanned Space Experiment Free Flyer
Institute for Unmanned Space Experiment Free Flyer
The is a Japanese space agency, which was founded by the Ministry of International Trade and Industry in 1986. Unlike NASDA, ISAS, and NAL, it was not included in the 2003 founded JAXA organization. USEF is run as a Non Profit Organization...
, USEF. It follows on from the SERVIS-1
SERVIS-1
SERVIS-1, or Space Environment Reliability Verification Integrated System 1, is a Japanese satellite designed for testing the performance of commercial off-the-shelf products in the space environment. It has a mass of about 840kg, and was launched on 30 October 2003 from the Plesetsk Cosmodrome by...
spacecraft, which was launched in 2003.
Launch
The launch of SERVIS-2 was conducted by Eurockot, using a Rokot carrier rocket with a Briz-KM upper stage. The launch occurred from Site 133/3Plesetsk Cosmodrome Site 133
Site 133, also known as Raduga , is a launch complex at the Plesetsk Cosmodrome in Russia. It is used by Rockot, and previously Kosmos carrier rockets. It consists of a single pad, originally designated 133/1, and later 133/3....
at 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:...
in Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...
. Eurockot, who were also responsible for launching the SERVIS-1 spacecraft, were awarded the contract to launch SERVIS-2 on 21 February 2007.
SERVIS-2 arrived at the Plesetsk Cosmodrome on 26 April 2010. Prior to launch, the spacecraft underwent final testing and fuelling, and was subsequently attached to its launch adaptor on 22 May. This was attached to the upper stage the next day, and the day after that the spacecraft was encapsulated in the payload fairing
Payload fairing
Payload fairing is one of the main components of a launch vehicle. The fairing protects the payload during the ascent against the impact of the atmosphere . More recently, an additional function is to maintain the cleanroom environment for precision instruments.Outside the atmosphere the fairing is...
. Under terminology used by Eurockot, as well as several other launch service provider
Launch Service Provider
A Launch Service Provider is a type of company which specialises in launching spacecraft. It is responsible for the ordering, conversion, or construction of the carrier rocket, assembly and stacking, payload integration, and ultimately conducting the launch itself...
s, the combination of spacecraft, adaptor, upper stage and fairing was designated the Upper Composite. This was transported to the launch pad on 27 May for integration with the first two stages of the rocket. The launch occurred successfully at 01:59 UTC on 2 June 2010.
Spacecraft
SERVIS-2 is a 740 kilograms (1,631.4 lb) spacecraft, which measures 2.5 by. It is intended to conduct experiments related to the demonstration of technology to be used in future missions, particularly research into the use of commercial off-the-shelfCommercial 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...
equipment. The spacecraft has a design life of one year, and its Solar panels will provide it with at least 1,300 watts of power.
SERVIS-2 operates in a Sun-synchronous
Sun-synchronous orbit
A Sun-synchronous orbit is a geocentric orbit which combines altitude and inclination in such a way that an object on that orbit ascends or descends over any given point of the Earth's surface at the same local mean solar time. The surface illumination angle will be nearly the same every time...
low Earth orbit
Low Earth orbit
A low Earth orbit is generally defined as an orbit within the locus extending from the Earth’s surface up to an altitude of 2,000 km...
, at an altitude of 1200 kilometres (745.6 mi) and an inclination
Inclination
Inclination in general is the angle between a reference plane and another plane or axis of direction.-Orbits:The inclination is one of the six orbital parameters describing the shape and orientation of a celestial orbit...
of 100.4 degrees.
Experiments
Nine experiments are being conducted by SERVIS-2. They are mostly described (in Japanese) in a special edition of Uchu Kagaku Gijutsu Rengo Koenkai Koenshu (Proceedings of the Space Sciences and Technology Conference).| Name | Full name | Description | Remarks |
|---|---|---|---|
| LIBA | Lithium-Ion (Mn type) Battery system with Automotive Technology | ||
| ADMS | High Assurance Data Management System | ||
| CRAFT | Fault-Tolerant Computer with CRAFT System | ||
| PPRTU | Plug-and-Play Remote Terminal Unit | ||
| HPDC | High Performance Data Compressor | ||
| APE | Advanced Positioning Experimental Module | ||
| ASM | Advanced Satellite Structure Experimental Module | ||
| MBW | Magnetic Bearing Wheel | ||
| MEMS | RF-MEMS Experiment Unit |
The Commercial Parts Test Unit on SERVIS-2 is carrying 4Mbit and 8Mbit SRAM chips, 256Mbit and 512Mbit DRAM chips, 128kbit SOI SRAM chips made on a 180nm process, and NOR-type 128Mbit flash memory chips.