SGP
change note: 2020-03-19 15:55:31.0 [tstevens] insert AltLabel (id: null category: primary text: Space Geodesy Project language code: en); insert Definition (id: null text: The global geodetic infrastructure is comprised of several networks and individual ground stations for: Very Long Baseline Interferometry (VLBI), Satellite Laser Ranging (SLR), Global Navigation Satellite Systems (GNSS), and Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS). NASA's Space Geodesy Program contributes to the global infrastructure through the deployment, operation, and maintenance of two coordinated networks: the NASA Space Geodesy Network (NSGN) of collocated VLBI, SLR, GNSS, and DORIS stations, and the NASA Global GNSS Network (GGN). The data produced by these networks is used for a variety of products, including: the definition of the International Terrestrial Reference Frame (ITRF), measurement of the Earth Orientation Parameters, and satellite precision orbit determination. The data and products from these networks are also used to support a broad range of scientific and societal applications in areas such as Earth observations, positioning, navigation, and timing. Many of the geodetic stations are decades old and are not capable of meeting future requirements. The US National Research Council (NRC) Committee on Earth Science and Applications from Space concluded in 2007 that: "The geodetic infrastructure needed to enhance or even to maintain the terrestrial reference frame is in danger of collapse." NASA and many other international government agencies are responding to this conclusion by making new investments to modernize and expand their geodetic infrastructure. The Space Geodesy Program is implementing NASA's response to the NRC recommendation by sustaining and operating NASA's legacy Space Geodesy Networks while executing the construction, deployment, and operation of the next generation Space Geodesy stations that will be part of a new NSGN. The Space Geodesy Pr…
change note: 2020-03-19 15:53:00.0 [tstevens] Insert Concept add broader relation (SGP [2cbdad6d-0b9b-4614-a223-e4ed430f1bc9,559875] - S - U [4eb1894b-35b4-406b-8864-944a42bc7702,547487]);
in scheme: projects
definition: The global geodetic infrastructure is comprised of several networks and individual ground stations for: Very Long Baseline Interferometry (VLBI), Satellite Laser Ranging (SLR), Global Navigation Satellite Systems (GNSS), and Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS). NASA's Space Geodesy Program contributes to the global infrastructure through the deployment, operation, and maintenance of two coordinated networks: the NASA Space Geodesy Network (NSGN) of collocated VLBI, SLR, GNSS, and DORIS stations, and the NASA Global GNSS Network (GGN). The data produced by these networks is used for a variety of products, including: the definition of the International Terrestrial Reference Frame (ITRF), measurement of the Earth Orientation Parameters, and satellite precision orbit determination. The data and products from these networks are also used to support a broad range of scientific and societal applications in areas such as Earth observations, positioning, navigation, and timing. Many of the geodetic stations are decades old and are not capable of meeting future requirements. The US National Research Council (NRC) Committee on Earth Science and Applications from Space concluded in 2007 that: "The geodetic infrastructure needed to enhance or even to maintain the terrestrial reference frame is in danger of collapse." NASA and many other international government agencies are responding to this conclusion by making new investments to modernize and expand their geodetic infrastructure. The Space Geodesy Program is implementing NASA's response to the NRC recommendation by sustaining and operating NASA's legacy Space Geodesy Networks while executing the construction, deployment, and operation of the next generation Space Geodesy stations that will be part of a new NSGN. The Space Geodesy Project (SGP) deployment strategy is guided by the recommendations of the NRC Committee on the National Requirements for Precision Geodetic Infrastructure, as we…
type: Concept

S - U
type: Concept