@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/5f5e4f2c-61b7-4694-8680-3fc5799f6171>
  skos:prefLabel "Particle Detectors"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/042e723a-9d12-4eff-ab5d-334171182d5c> .

<https://gcmd.earthdata.nasa.gov/kms/concept/042e723a-9d12-4eff-ab5d-334171182d5c>
  ns0:resource [ ] ;
  skos:changeNote """2013-07-05 12:47:43.0 [aaleman] Move Concepts 
add broader relation (DUST [042e723a-9d12-4eff-ab5d-334171182d5c,75895] - AA [f9361dd3-16ab-46f0-bbcc-27c07dd6f4ac,75561]); 
delete broader relation (null); 
""", """2013-07-05 12:48:05.0 [aaleman] Move Concepts 
add broader relation (DUST [042e723a-9d12-4eff-ab5d-334171182d5c,75895] - Particle Detectors [5f5e4f2c-61b7-4694-8680-3fc5799f6171,74871]); 
delete broader relation (null); 
""" ;
  ns0:altLabel [ ] ;
  skos:definition """The Ulysses dust experiment is intended to provide direct observations of dust
grains with masses between 10**-16 g and 10**-6 g in interplanetary space, to
investigate their physical and dynamical properties as functions of
heliocentric distance and ecliptic latitude. Of special interest is the
question of what portion is provided by comets, asteroids and interstellar
particles. The investigation is performed with an instrument that measures the
mass, speed, flight direction and electric charge of individual dust particles.
It is a multicoincidence detector with a mass sensitivity 10**6 times higher
than that of previous in situ experiments which measured dust in the outer
solar system. The instrument weighs 3.8 kg, consumes 2.2 W, and has a normal
data transmission rate of 8 bits/s in nominal spacecraft tracking mode. On 27th
October 1990 the instrument was switched on. The instrument was configured to
flight conditions and science data collection started immediately. In the
period to 13th January 1991 at least 44 dust impacts have been recorded. Flux
values are given covering the heliocentric distance range from 1.04 to 1.7 AU. 

(Abstract from: E. Gruen et al., Astron. Astrophys. Suppl. Ser. 92, 411-423,
1992) 

For more information, see:
http://ulysses.jpl.nasa.gov/spacecraft/inst_dust.html


Group: Instrument_Details
   Entry_ID: DUST
   Group: Instrument_Identification
      Instrument_Category: Solar/Space Observing Instruments
      Instrument_Class: Particle Detectors
      Short_Name: DUST
      Long_Name: Ulysses Cosmic Dust Experiment
   End_Group
   Group: Associated_Platforms
      Short_Name: ULYSSES
   End_Group
   Online_Resource: http://www.mpi-hd.mpg.de/dustgroup/projects/ulysses.html
   Online_Resource: http://ulysses-ops.jpl.esa.int/ulysses/archive/dust.html
   Sample_Image: http://ulysses-ops.jpl.esa.int/ulysses/images/dust.gif
   Group: Instrument_Logistics
      Data_Rate: 5 kbps
      Instrument_Start_Date: 1990-10-06
      Instrument_Owner: Max Plank Institute
   End_Group
End_Group"""@en ;
  skos:prefLabel "DUST"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/instruments> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/5f5e4f2c-61b7-4694-8680-3fc5799f6171> ;
  a skos:Concept .