@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/14b369b6-19d4-41fe-b1bc-27807ecb666d>
  skos:prefLabel "ATS (Advanced Technology Satellite)"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/1190ffd3-586f-46a5-bf9b-e7bf16281edd> .

<https://gcmd.earthdata.nasa.gov/kms/concept/1190ffd3-586f-46a5-bf9b-e7bf16281edd>
  ns0:resource [ ] ;
  ns0:altLabel [ ] ;
  skos:definition """ATS 2 was launched in April 1967 and was a medium altitude,
gravity-gradient-stabilized spacecraft designed to (1) test new concepts in
spacecraft design, propulsion, and stabilization, (2) take high-quality
cloudcover pictures, (3) provide in situ measurements of the aerospace
environment, and (4) test improved communication systems.  The
cylindrically-shaped spacecraft measured 142 cm in diameter and 183 cm in
length.  The primary structural members were a corrugated thrust tube with
honeycombed bulkheads secured to each end.  Equipment components and payload
were externally mounted on the outer surface of the thrust tube as well as on a
structure that slid into the interior of the thrust tube.  Electric power was
provided by two solar arrays mounted on either end of the spacecraft's  outer
shell and by two rechargeable nickel-cadmium batteries.  Extending radially
outward from the side of the spacecraft were four 28.2 m adjustable
gravity-gradient booms.  The spacecraft telemetry system consisted of four
2.1-W transmitters (two at 136.47 MHz  and two at 137.35 MHz), in addition to a
microwave communications experiment.

This satellite carried a particle telescope, omnidirectional proton and
electron detectors, advanced vidicon camera system, and a electron magnetic
deflection spectrometer.  The second stage of the ATS 2 launch vehicle failed
to ignite resulting in an unplanned elliptical orbit.  Stresses induced by this
orbit eventually induced spacecraft tumbling.  In spite of these conditions
useful data were obtained from some of the experiments, most notably the
cosmic-ray and particle experiments and the field detection experiments.  The
satellite reentered the atmosphere on September 2, 1969.


Group: Platform_Details
   Entry_ID: ATS-2
   Group: Platform_Identification
      Platform_Category: Earth Observation Satellites
      Platform_Series_or_Entity: ATS (Advanced Technology Satellite)
      Short_Name: ATS-2
      Long_Name: Advanced Technology Satellite-2
   End_Group
   Creation_Date: 2007-09-08
   Online_Resource: http://www.astronautix.com/craft/ats2.htm
   Sample_Image: http://www.astronautix.com/graphics/a/ats2.jpg
   Group: Platform_Logistics
      Launch_Date:  1967-04-06
      Design_Life: 3 YEARS
      Primary_Sponsor: NASA
   End_Group
End_Group"""@en ;
  skos:prefLabel "ATS-2"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/platforms> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/14b369b6-19d4-41fe-b1bc-27807ecb666d> ;
  a skos:Concept .