Precession and Nutation from VLBI Measurements
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VLBI analyses VLBI/LLR analyses realistic errors↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Earth Rotation Parameters From DSN VLBI: 1997
This year we have adopted the new standard for greenwich true sidereal time, which involves 18yr and 9yr terms.
Earth Rotation DSN VLBI↗
U.S. Space VLBI: VSOP Mission Ground Support System
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Space Very Long Baseline Interferometry(VLBI) grou↗
Small-toMedium Size Space VLBI Mission for Astrometry
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VLBI radio astrometry↗
Space VLBI Co-Observing Developments at teh DSN
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VLBI DSN VSOP↗
Prospects for Determining Galactic Rotation From VLBI Measurements
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radio interferometric data VLBI galaxy rotation↗
Alaska Crustal Deformation: Finite Element Modeling Constrained by Geologic and VLBI Data
Crustal motions in Alaska are computed by calculating the finite element solution for an elastic spherical shell problem. Very long baseline interferometry and geologic data are used and seem to be in rough agreement.
faults crustal deformation VLBI Alaska↗
WVR-Based Troposphere Delay Calibration of VLBI Observations on a 20 km Baseline
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Troposphere VLBI↗
Solid Earth Tide Modeling in VLBI
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Very Long Baseline Interferometry (VLBI) IERS Wahr↗
Earth Rotation Parameters from DSN VLBI: 1993
This year we have introduced several modeling improvements, including estimating a parametric model for the mearly-diurnal and nearly-semidiurnal tidal frequency variations of UTI and polar motion, and estimating site velocities.
earth rotation DSN VLBI IERS TEMPO↗
A Test of WVR-Based Tropospheric Delay Calibration Using VLBI Observations on a 20 km Baseline
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S/X band VLBI (Very Long Baseline Interferometry) ↗
Plate Motion and Western US Deformation from VLBI Data
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Plate Motion VLBI Angular Velocity↗
A Test of WVR-Based Troposphere Delay Calibration Using VLBI Observations on a 20 KM Baseline
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Microwave Temperature Profiler model-based retriev↗
Earth Rotation Parameters from DSN VLBI: 1995
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DSN VLBI↗
The Potential for a Ka-Band Worldwide VLBI Network
No abstract available
Very-long-baseline interferometry (VLBI)↗
Implementation Issues and Choices for VLBI Data Acquisition System in DSN
No abstract available
Very-long-baseline interferometry (VLBI)↗
VLBI: Radio Interferometry for Celestial and Terrestrial Frames
No abstract available
Very-long-baseline interferometry (VLBI)↗
U.S. Space VLBI Proposed Outreach Web Site
We develop astronomical images of quasars using international radio interferometry.
Space↗