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Pedestal for antenna at Kokee Park Observatory KPGO blog 09/04/2015

The Space Geodesy Project is pleased to announce a new blog. This blog follows the implementation of the Space Geodesy Project’s new 12-meter broadband Very Long Baseline Interferometry (VLBI) station at NASA’s Kōkeʻe Park Geophysical Observatory (KPGO) on Kauai, Hawaii. The new station is a joint effort by NASA Goddard Space Flight Center and the United States Naval Observatory, and will become part of the VLBI2010 Global Observing System (VGOS). The station design is based on the successful prototype VLBI2010 station at NASA’s Goddard's Geophysical and Astronomical Observatory (GGAO) in Greenbelt, MD. The new KPGO antenna was developed by Intertronics Solutions, Inc. (ISI), and the MIT Haystack Observatory is responsible for the development of the broadband signal chain.

Using Quasars to Measure the Earth: A Brief History of VLBI

Looking Down a Well: A Brief History of Geodesy

  • SGP logo Space Geodesy VLBI Antenna Request for Information Released 10/06/2015 The National Aeronautics and Space Administration (NASA) Space Geodesy Project (SGP) is soliciting information to improve its understanding of the interest, capabilities, and Rough Order of Magnitude (ROM) estimates for planning the construction and deployment of up to three Very Long Baseline Interferometer (VLBI) antennas that will be part of a new NASA Space Geodesy Network (NSGN) and the VLBI2010 Global Observing System (VGOS).

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  • World map depicting locations of GNSS sites Real-Time GNSS Data and Products now available through the CDDIS 04/10/2015 The CDDIS staff is pleased to announce that its real-time caster is now operational, supporting the International GNSS Service (IGS) Real-Time Service (RTS). The IGS RTS, based on a cooperative global infrastructure of stations, data centers, and analysis centers, provides GNSS orbit and clock corrections that enable precise point positioning (PPP) and related applications, such as time synchronization and disaster monitoring at global scales. The CDDIS caster utilizes the NTRIP (Networked Transport of RTCM via Internet Protocol) software to disseminate these real-time streams to registered users.

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  • Staff Profile: Stephen Merkowitz, Project Manager
    Project manager Stephen Merkowitz talks about his work with NASA's Space Geodesy Project, including a brief overview of the four fundamental techniques of space geodesy: GPS, VLBI, SLR, and DORIS.

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  • Staff Profile: Jan McGarry, Mathematician
    Mathematician Jan McGarry discusses the science and history of Satellite Laser Ranging (SLR), her role in developing the Next Generation Satellite Laser Ranging system, and her career at NASA's Goddard Space Flight Center.

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  • Staff Profile: Chopo Ma, Space Geodesist
    Space geodesist Chopo Ma explains the science of Very Long Baseline Interferometry (VLBI): using radio emissions from distant galaxies to create a precise reference frame for the Earth.

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  • Staff Profile: Carey Noll, Computer Scientist
    Computer scientist Carey Noll talks about her job as manager of the Crustal Dynamics Data Information System (CDDIS), the applications of her work for various space geodesy techniques such as GPS, and her career at NASA's Goddard Space Flight Center.

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