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

<https://gcmd.earthdata.nasa.gov/kms/concept/44941da4-aae8-4776-8db0-f2c3eb5eb5e6>
  ns0:resource [ ] ;
  skos:definition """EQUATOR-S  is a low-cost mission designed to study the Earth's equatorial
magnetosphere out to distances of 67000 km and it forms an element of the
closely-coordinated fleet of satellites that comprise the  IASTP  program
(http://www-istp.gsfc.nasa.gov/istp/sci_operations/www-sites.html) . It is
based on a simple spacecraft design and carries a science payload consisting of
advanced instruments that were developed for other IASTP missions. Unique
features of  EQUATOR-S  are its nearly equatorial orbit and its high spin rate.
It was launched as an auxiliary payload on an Ariane-4 on December 2nd, 1997.
The mission is intended for a two-year lifetime.

The idea of an equatorial satellite dates back to NASA's GGS (Global Geospace
Science) program originally conceived in 1980. When the equatorial element of
the program was abandoned in 1986 and several subsequent attempts to rescue the
mission had failed, the Max-Planck-Institut f?r extraterrestrische Physik (MPE)
decided in 1991 to fill this gap in the GGS (and in the international IASTP)
program because of its interest in the global magnetospheric science, and
because it provided an opportunity for a test of an advanced instrument, EDI,
to measure electric fields with dual electron beams. The realization of
EQUATOR-S was possible through a grant from the German Space Agency DARA
(meanwhile part of DLR), that was approved in late 1994, but also through
MPE-internal funds and personnel. 

For more information, see:
http://www.mpe-garching.mpg.de/EQS/eq-s-spacecraft.html


Group: Platform_Details
   Entry_ID: EQUATOR-S
   Group: Platform_Identification
      Platform_Category: Solar/Space Observation Satellites
      Short_Name: EQUATOR-S
   End_Group
   Group: Synonymous_Platform_Names
      Short_Name: EQUATOR-S
   End_Group
   Group: Platform_Associated_Instruments
      Short_Name: MAGNETOMETERS
   End_Group
   Creation_Date: 2008-01-14
   Online_Resource: http://www.mpe-garching.mpg.de/EQS/
   Sample_Image: http://www.mpe-garching.mpg.de/EQS/PIFICONS/eqs-spacecraft.gif
End_Group"""@en ;
  skos:prefLabel "EQUATOR-S"@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 .

<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/44941da4-aae8-4776-8db0-f2c3eb5eb5e6> .