@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<https://gcmd.earthdata.nasa.gov/kms/concept/18efb4b9-414b-43a4-98ea-6edafafdecaa>
  skos:definition """In the year 2000, the Argentinean satellite SAC-C was launched
carrying a new generation of GPS receivers, the "Blackjack",
developed at JPL. The mission is managed by the Argentinean
CONAE, which will be the other main data processing center for
SAC-C occultations. On July 7th. the SAC-C Blackjack captured
its first profile and has since been collecting up to 250 daily
occultations during much of 2001. This receiver has enhanced
capabilities over the older generation GPS/MET instrument that
include "enhanced codeless" tracking (i.e., the ability to track
the encrypted GPS signals), higher signal-to-noise ratio, and
lower tracking in the atmosphere. The Blackjack GPS receiver is
capturing high vertical resolution profiles over land and oceans
and is providing data complementary to other sounding
techniques. From this point on, the amount of data is expected
to increase with ongoing enhancements of the receiver's
software.

Additional information available at
"http://genesis.jpl.nasa.gov/html/missions/SAC-C.html"

[Summary provided by NASA]"""@en ;
  skos:prefLabel "SACC-BLACKJACK"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/instruments> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/0aac1404-4b73-4349-b690-6af0092c8021> ;
  a skos:Concept .

<https://gcmd.earthdata.nasa.gov/kms/concept/0aac1404-4b73-4349-b690-6af0092c8021>
  skos:prefLabel "Radio Sounders"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/18efb4b9-414b-43a4-98ea-6edafafdecaa> .