@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix ns0: <http://gcmd.gsfc.nasa.gov/kms#> .

<https://gcmd.earthdata.nasa.gov/kms/concept/8e8b7689-0a8e-47a4-9c68-5f6a207104d5>
  skos:prefLabel "Solar/Space Observation Satellites"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/436570eb-cb83-48d3-81d7-a6b6c6a777b4> .

<https://gcmd.earthdata.nasa.gov/kms/concept/436570eb-cb83-48d3-81d7-a6b6c6a777b4>
  ns0:resource [ ] ;
  ns0:altLabel [ ] ;
  skos:definition """The aim of the Cluster mission is to study small-scale structures of the
magnetosphere and its environment in three dimensions. To achieve this, Cluster
is constituted of four identical spacecraft that will flight in a tetrahedral
configuration. The separation distances between the spacecraft will be varied
between 600 km and 20 000 km, according to the key scientific regions. 

The first Cluster mission was launched on 4 June 1996, but the launch vehicle 
exploded 37 seconds into the flight.

Cluster II was launched from Baikonur Cosmodrome in Kazakhstan on 16 July 2000
and 9 August 2000. The four satellites were put into orbit, in pairs, by two
Soyuz rockets provided by the Russian-French Starsem company. Starsem has four
shareholders - Aerospatiale, Arianespace, the Russian Space Agency and TsSKB
Samara, the manufacturer of the Soyuz vehicle. 

Each of the four spacecraft carries an identical set of 11 instruments to
investigate charged particles, electrical and magnetic fields. These were built
by European and American instrument teams led by Principal Investigators. 

FGM-Fluxgate Magnetometer

EDI -Electron Drift Instrument

ASPOC-Active Spacecraft Potential Control experiment

STAFF -Spatio-Temporal Analysis of Field Fluctuation experiment

EFW-Electric Field and Wave experiment

DWP-Digital Wave Processing experiment

WHISPER-Waves of High frequency and Sounder for Probing of Electron density by
Relaxation experiment

WBD-Wide Band Data instrument

PEACE-Plasma Electron And Current Experiment

CIS-Cluster Ion Spectrometry experiment

RAPID-Research with Adaptive Particle Imaging Detectors

See:
http://clusterlaunch.esa.int/science-e/www/area/index.cfm?fareaid=8


Group: Platform_Details
   Entry_ID: CLUSTER-II
   Group: Platform_Identification
      Platform_Category: Solar/Space Observation Satellites
      Short_Name: CLUSTER-II
      Long_Name: CLUSTER-II
   End_Group
   Group: Synonymous_Platform_Names
      Short_Name: Cluster-2
      Short_Name: FM6
      Short_Name: FM5
      Short_Name: FM7
      Short_Name: FM8
      Short_Name: Salsa
      Short_Name: 26411
      Short_Name: 26463
      Short_Name: 26410
      Short_Name: 26464
      Short_Name: Samba
      Short_Name: Rumba
      Short_Name: Tango
      Short_Name: 2000-045B
      Short_Name: 2000-041A
      Short_Name: 2000-041B
      Short_Name: 2000-045A
   End_Group
   Group: Platform_Associated_Instruments
      Short_Name: EFW
      Short_Name: FGM
      Short_Name: EDI
      Short_Name: ASPOC
      Short_Name: STAFF
      Short_Name: DWP
      Short_Name: WHISPER
      Short_Name: WBD
      Short_Name: PEACE
      Short_Name: CIS
      Short_Name: RAPID
   End_Group
   Group: Orbit
      Orbit_Inclination: 90.7 degrees
      Period: 620 m
      Perigee: 19,000 km
      Apogee: 119,000 km
      Orbit_Type: HEO > Highly Elliptical Orbit
   End_Group
   Online_Resource: http://sci.esa.int/science-e/www/area/index.cfm?fareaid=8
   Sample_Image: http://sci.esa.int/science-e-media/img/2e/hires_36654.JPG
   Group: Platform_Logistics
      Launch_Date: 2000-07-16
      Launch_Site: Baikonur Cosmodrome, Tyuratam, Russia
      Design_Life: 9 years
      Primary_Sponsor: ESA
      Primary_Sponsor: NASA
   End_Group
End_Group"""@en ;
  skos:prefLabel "CLUSTER-II"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/platforms> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/8e8b7689-0a8e-47a4-9c68-5f6a207104d5> ;
  a skos:Concept .