• Laser ranging to the moon
    Laser Ranging to the Moon
    NGSLR, located at NASA GSFC's Goddard Geophysical and Astronomical
    Observatory (GGAO),is shown ranging to the Lunar Reconnaissance Orbiter (LRO)
    orbiting the Moon. The LRO Laser Ranging (LR) system enables the spacecraft
    to achieve its precision orbit determination requirement.
  • antenna
    VGOS
    VGOS, located at NASA GSFC's Goddard
    Geophysical and Astronomical Observatory
    (GGAO), is the next generation of
    geodetic VLBI systems
  • Monument brace
    Drilled Brace Monument for GNSS Antenna
    The newly installed drilled brace monument for the
    Global Navigation Satellite System (GNSS) antenna at
    NASA GSFC's Goddard Geophysical and Astronomical
    Observatory (GGAO). The multi-GNSS-capable
    receiver tracks signals from several GNSS including
    GPS, GLONASS, and Galileo.
  • DORIS
    DORIS Antenna
    The Doppler Orbitography and Radio-positioning Integrated
    by Satellite (DORIS) antenna located at NASA GSFC's Goddard
    Geophysical and Astronomical Observatory (GGAO) tracks
    satellites equipped with DORIS beacons; NGSLR can be seen
    in the background.

KPGO Blog
  • Sun pointing test

SGP is completing the implementation of a new 12-meter broadband Very Long Baseline Interferometry (VLBI) station at NASA's Kōkeʻe Park Geophysical Observatory (KPGO) on Kauai, Hawaii. This blog follows the progress towards the station completion with updates from the team about once a week.

Latest news

EOSDIS awarded the 2015 Pecora award
02/14/2018

EOSDIS was awarded the 2015 Pecora award. This prestigious award is given to groups that make outstanding contributions toward understanding the Earth by means of remote sensing. The citation highlights the EOSDIS accomplishments in providing an open archive system for a global user community. CDDIS is one of twelve DAACs supporting EOSDIS efforts through the Earth Science Data and Information System (ESDIS) project. Carey Noll, CDDIS Manager, accepted their award certificate from Andy Mitchell, ESDIS Project Manager, and Jeanne Behnke, Deputy Project Manager/Operations, at the 2018 DAAC Managers Meeting.


First Circular for the 21st International Workshop on Laser Ranging Released
02/02/2018

The Space Environment Research Centre (SERC) and the International Laser Ranging Service (ILRS) are pleased to announce that the 21st International Workshop on Laser Ranging will be held in Canberra, Australia during the week of November 04-09, 2018 at the John Curtin School of Medical Research (Australian National University) and Mount Stromlo. The first circular has been released.


The Space Geodesy Project: Surveying the World
01/31/2018

In the summer of 2017 Joseph Dowling, a NASA intern reporting for Earthzine, visited the Goddard Geophysical and Astronomical Observatory (GGAO). Guided by Larry Hilliard of the SGP team, Joseph interviewed a variety of SGP experts to create this introduction to geodesy and help the audience discover our mission in serving Earth Science and the complementary roles of our four different geodetic techniques. Joseph's article, "The Space Geodesy Project: Surveying the World," appeared in Earthzine on November 8th, 2017.


Tour of GGAO during NASA's Social Media Day, November 3, 2017
11/20/2017

As part of NASA's Social Media Day, held November 3, 2017, the Space Geodesy Project provided a tour of the Goddard Geophysical and Astronomical Observatory (GGAO) to 50 social media users selected by NASA. View scenes from the tour, courtesy of Conner Sebreny.




Read all news


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


Looking Down a Well: A Brief History of Geodesy


Staff profiles