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Space Geodesy Project Office (690.2) Press Releases & Feature Stories Archive

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Space Geodesy Request for Information

08.30.2012
NASA is soliciting information to improve its understanding of the interest, capabilities, and Rough Order of Magnitude (ROM) estimates for planning the construction, deployment, and operation of the next generation Space Geodesy (SG) stations that will be part of the upcoming NASA’s Space Geodetic Network (SGN).
Jan McGarry

NASA | Space Geodesy Profiles: Jan McGarry

08.17.2012
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.
NGSLR Optical Bench

NGSLR Optical Bench Laboratory Build Status

08.15.2012
The design and laboratory build of the new NGSLR Optical Bench has been completed. The new bench offers an improved optical layout, incorporates alignment lasers, and uses monitoring cameras for more efficient alignments.
Carey Noll

NASA | Space Geodesy Profiles: Carey Noll

08.02.2012
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.
http://www.youtube.com/watch?v=ataZY-9yPog&feature=youtu.be
Chopo Ma

NASA | Space Geodesy Profiles: Chopo Ma

07.19.2012
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.
Stephen Merkowitz

NASA | Space Geodesy Profiles: Stephen Merkowitz

07.05.2012
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.
digital clock readout showing 23:59:60

NASA Explains Why Clocks Will Get an Extra Second on June 30

06.29.2012
A "leap" second, is being added to account for the fact that it is taking Earth longer and longer to complete one full turn. Scientists know this from VLBI measurements, which are also used in the time standard UT1.
VLBI Movie

Using Quasars to Measure the Earth: A History of VLBI

06.21.2012
VLBI was originally invented in the 1960s to take better pictures of quasars, but scientists soon found that if you threw the process in reverse, you could measure how the ground beneath the telescopes moves around, how long days really are, and how the Earth wobbles on its axis!
NASA Pinning Down

NASA Pinning Down "Here" Better Than Ever

04.02.2012
NASA is helping to lead an international effort to upgrade the four systems that supply crucial location information in pinpointing where "here" is.
http://www.nasa.gov/topics/technology/features/here-pin-down.html
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