@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/41de58a7-f1e3-453f-9094-80cb8e839b36>
  skos:prefLabel "NAVSTAR"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/17da87fb-d1c9-4fca-befd-f14ec5a2fa02> .

<https://gcmd.earthdata.nasa.gov/kms/concept/17da87fb-d1c9-4fca-befd-f14ec5a2fa02>
  ns0:altLabel [ ] ;
  skos:definition """The Navstar Global Positioning System (GPS) is a constellation
of orbiting satellites that provides navigation data to military
and civilian users all over the world. The system is operated
and controlled by the 50th Space Wing, located at Schriever Air
Force Base, Colo.

Navigating Services Features:

Extremely accurate, three-dimensional location information
(latitude, longitude and altitude), velocity and precise time

A worldwide common grid that is easily converted to any local grid

Passive all-weather operations

Continuous real-time information

Support to an unlimited number of users and areas

Support to civilian users at a slightly less accurate level


Characteristics:

Primary Function: Precise navigation, timing and velocity
information worldwide

Primary Contractors: Block I and II/IIA, Rockwell International
(Boeing North American); Block IIR, Lockheed Martin; Block IIF,
Boeing North American

Power Plant: Solar panels generating 800 watts

Weight: Block IIA, 3,670 pounds (1,816 kilograms); Block IIR,
4,480 pounds (2,217 kilograms)

Height: Block IIA, 136 inches (3.4 meters); Block IIR, 70 inches
(1.7 meters)

Width (includes wingspan): Block IIA, 208.6 inches (5.3 meters);
Block IIR, 449 inches (11.4 meters)

Design life: Block II/IIA, 7.5 years; Block IIR, 10 years

Date of First Launch: 1978

Launch vehicle: Delta II

Date Constellation Operational: July 1995 (at full operational capacity)


Contact Information:

Air Force Space Command
Public Affairs Office
150 Vandenberg, Suite 1105
Peterson AFB, Colo. 80914-4500
692-3731 or (719) 554-3731.

Additional information available at:
"http://131.84.1.31/news/factsheets/NAVSTAR_Global_Positioning_Sy.html"

[Summary provided by United States Air Force]"""@en ;
  skos:prefLabel "NAVSTAR"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/platforms> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/41de58a7-f1e3-453f-9094-80cb8e839b36> ;
  a skos:Concept .