A Space Beam Combiner for Long-Baseline Interferometry
An experimental beam combiner (BC) is being developed to support the space interferometry program at the Jet Propulsion Laboratory.
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The Space Interferometry Mission (SIM)-- revolutionary astronomy, breakthrough technology
optical and infrared interferometry will open new vistas for astronomy over the next decade. space based interferometers, operating unfettered by the Earth's atmosphere, will offer the greatest scientific payoff
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Space Interferometry Mission: Starlight and Metrology Subsystems
The Space Interferometry Mission, planned for launch in 2009, will measure the positions of celestial objects to an unprecedented accuracy of 4.0 microarcseconds.
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Nulling interferometry progress
The field of nulling interferometry has seen significant progress over the past several years, in both the conceptual and experimental arenas. Deep, broadband nulling has been demonstrated at optical wavelengths, the techniques have seen initial implementation on telescopes, and the introduction of a symmetric beam-combiner concept has eliminated many of the residual obstacles. Here an overview is provided of promising techniques for effecting the deep cancellation of starlight, and recent results obtained with laboratory and astronomical nulling interferometers are discussed. The next step is the exploitation of nulling techniques at 8-10 m class separated-aperture telescope facilities, and in this vein, a brief overview of the architecture of the Keck Interferometer Nuller is also provided.
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Overview and Status of the Space Interferometry Mission (SIM) Technology Development
Optical and infrared interferometry will open new vistas for astronomy over the next decade.
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Glacier and Ice Shelves Studies Using Satellite SAR Interferometry
Satellite radar interferometry is a powerful technique to measure the surface velocity and topography of glacier ice. On ice shelves, a quadruple difference technique separates tidal motion from the steady creep flow deformation of ice.
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Searching for Planets with the Space Interferometry Mission
The Space Interferometry Mission (SIM) is designed as a space-based optical interferometer operating in the visible waveband. This mission will open up many areas of astrophysics, via astrometry with unprecedented accuracy during its 5-year mission.
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Technology Development for the Space Interferometry Mission (SIM)
Optical and infrared interferometry will open new vistas for astronomy over the next decade.
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The Interferometry Program Flight Experiments: IPEX I & II
The Interferometry Program Experiments (IPEX) I and II are a series of flight experiments designed to characterize microdynamics of structures in space.
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Technology Development for the Space Interferometry Mission (SIM)
Optical and infrared interferometry will open new vistas for astronomy over the next decade.
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Science with the Space Interferometry Mission
The Space Interferometry Mission (SIM) will be NASA's first space-based optical interferometer designed for precision astrometry.
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Space Interferometry Mission
The Space Interferometry Mission (SIM) is NASA's first space science interferometer, and will enable fundamental new discoveries in both galactic and extra-galactic astronomy, including cosmic distance scale...It demonstrates several key technologies...
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Metrology for Spatial Interferometry II
Very high resolution spatial interferometry requires picometer level one-dimensional metrology,
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International Mission Planning for Space Very Long Baseline Interferometry
Two spacecraft dedicated to Very Long Baseline Interferometry (VLBI) will be launched in 1996 and 1997 to make observations using baselines between the space telescopes and many of the world's ground radio telescopes.
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Demonstration of Use of a Real Time Tone Tracker to Obtain Same Beam Interferometry Data
The radio metric tracking technique known as Same-Beam Interferometry has been shown to improve orbit determination accuracy for the Magellan and Pioneer 12 Orbiter.
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International Data Transfer for Space Very Long Baseline Interferometry
Space Very Long Baseline Interferometry (SVLBI) experiments using a TDRSS satellite have successfully demonstrated the capability of using spacecraft to extend the effective baseline length of VLBI observations beyond the diameter of the Earth, thereby improving the resolution for imaging of active galactic nuclei at centimeter wavelengths.
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Overview of SAR Polarimetry and Interferometry
This paper summarizes the recent work in the fields of Synthetic Aperture Radar (SAR) polarimetry and Interferometry. These fields have seen very significant development during the last five years, and these fields are now well understood.
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Novel Wide Field-of-view Laser Retroreflector for the Space Interferometry Mission
A new type of laser retroreflector has been developed for JPL's future Space Interferometry Mission. The retroreflector consists of an assembly of prisms to form multiple hollow cornercubes. This way the limited field of view (FOV) of about 60deg of a single corner can be overcome, to comply with the geometry of an optical truss.
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