Mr. Curtis A. Henry Profile

Curtis A. Henry

TPF Interferometer System Mgr at Jet Propulsion Lab

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Author

Publications (9)

Proceedings Article | 6 August 2010 Paper

ACCESS: a concept study for the direct imaging and spectroscopy of exoplanetary systems

John Trauger, Karl Stapelfeldt, Wesley Traub, John Krist, Dwight Moody, Dimitri Mawet, Eugene Serabyn, Curtis Henry, Paul Brugarolas, James Alexander, Robert Gappinger, Olivia Dawson, Virgil Mireles, Peggy Park, Laurent Pueyo, Stuart Shaklan, Olivier Guyon, Jeremy Kasdin, Robert Vanderbei, David Spergel, Ruslan Belikov, Geoffrey Marcy, Robert Brown, Jean Schneider, Bruce Woodgate, Robert Egerman, Gary Matthews, Jason Elias, Yves Conturie, Phillip Vallone, Perry Voyer, Ronald Polidan, Charles Lillie, Constance Spittler, David Lee, Reem Hejal, Allen Bronowicki, Nick Saldivar, Mark Ealey, Thomas Price

Proceedings Volume 7731, 773128 (2010) https://doi.org/10.1117/12.858301

KEYWORDS: Coronagraphy, Stars, Planets, Mirrors, Telescopes, Space telescopes, Exoplanets, Imaging systems, Observatories, Imaging spectroscopy

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Proceedings Article | 14 July 2008 Paper

ACCESS: a NASA mission concept study of an Actively Corrected Coronagraph for Exoplanet System Studies

John Trauger, Karl Stapelfeldt, Wesley Traub, Curt Henry, John Krist, Dimitri Mawet, Dwight Moody, Peggy Park, Laurent Pueyo, Eugene Serabyn, Stuart Shaklan, Olivier Guyon, Jeremy Kasdin, David Spergel, Robert Vanderbei, Ruslan Belikov, Geoffrey Marcy, Robert Brown, Jean Schneider, Bruce Woodgate, Gary Matthews, Robert Egerman, Ronald Polidan, Charles Lillie, Mark Ealey, Thomas Price

Proceedings Volume 7010, 701029 (2008) https://doi.org/10.1117/12.789119

KEYWORDS: Coronagraphy, Stars, Planets, Telescopes, Space telescopes, Mirrors, Wavefronts, Control systems, Space operations, Imaging systems

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Proceedings Article | 12 September 2005 Paper

Terrestrial planet finder interferometer 2005: overview of system design studies and technology development

Curt Henry

Proceedings Volume 5905, 590501 (2005) https://doi.org/10.1117/12.613185

KEYWORDS: Planets, Interferometers, Stars, Space operations, Robots, Nulling interferometry, Observatories, Coronagraphy, Sensors, Cryogenics

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Proceedings Article | 31 August 2005 Paper

Architecture trade study for the terrestrial planet finder interferometer

Oliver Lay, Steven Gunter, Louise Hamlin, Curt Henry, Ying-Yong Li, Stefan Martin, George Purcell, Brent Ware, Julie Wertz, M. Charley Noecker

Proceedings Volume 5905, 590502 (2005) https://doi.org/10.1117/12.618136

KEYWORDS: Stars, Space operations, Planets, Spatial resolution, Spectroscopy, Diamond, Control systems, Point spread functions, Nulling interferometry, Interferometers

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The Terrestrial Planet Finder Interferometer (TPF-I) is a space-based NASA mission for the direct detection of Earth-like planets orbiting nearby stars. At the mid-infrared wavelength range of interest, a sun-like star is ~10⁷ times brighter than an earth-like planet, with an angular offset of ~50 mas. A set of formation-flying collector telescopes direct the incoming light to a common location where the beams are combined and detected. The relative locations of the collecting apertures, the way that the beams are routed to the combiner, and the relative amplitudes and phases with which they are combined constitute the architecture of the system. This paper evaluates six of the most promising solutions: the Linear Dual Chopped Bracewell (DCB), X-Array, Diamond DCB, Z-Array, Linear-3 and Triangle architectures. Each architecture is constrained to fit inside the shroud of a Delta IV Heavy launch vehicle using a parametric model for mass and volume. Both single and dual launch options are considered. The maximum separation between spacecraft is limited by stray light considerations. Given these constraints, the performance of each architecture is assessed by modeling the number of stars that can be surveyed and characterized spectroscopically during the mission lifetime, and by modeling the imaging properties of the configuration and the robustness to failures. The cost and risk for each architecture depends on a number of factors, including the number of launches, and mass margin. Quantitative metrics are used where possible. A matrix of the architectures and ~30 weighted discriminators was formed. Each architecture was assigned a score for each discriminator. Then the scores were multiplied by the weights and summed to give a total score for each architecture. The X-Array and Linear DCB were judged to be the strongest candidates. The simplicity of the three-collector architectures was not rated to be sufficient to compensate for their reduced performance and increased risk. The decision process is subjective, but transparent and easily adapted to accommodate new architectures and differing priorities.

Proceedings Article | 1 November 2004 Paper

Current status of the Terrestrial Planet Finder structurally connected interferometer concept

Louise Hamlin, Curt Henry, Douglas Adams, Paul MacNeal, John Cardone, Ronald Holm

Proceedings Volume 5555, (2004) https://doi.org/10.1117/12.559907

KEYWORDS: Planets, Stars, Interferometers, Telescopes, Mirrors, Space telescopes, Optical instrument design, Structural design, Coronagraphy, Nulling interferometry

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Proceedings Article | 20 October 2004 Paper

Terrestrial Planet Finder interferometer: architecture, mission design, and technology development

Curt Henry, Oliver Lay, MiMi Aung, Steven Gunter, Serge Dubovitsky, Gary Blackwood

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.552345

KEYWORDS: Planets, Interferometers, Stars, Space operations, Cryogenics, Nulling interferometry, Mid-IR, Robots, Coronagraphy, Interferometry

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Proceedings Article | 29 September 2004 Paper

Structural configuration for the Terrestrial Planet Finder structurally connected interferometer concept

Paul MacNeal, Douglas Adams, Curt Henry, Herbert Blackhall, John Cardone

Proceedings Volume 5495, (2004) https://doi.org/10.1117/12.552990

KEYWORDS: Interferometers, Telescopes, Mirrors, Space telescopes, Space operations, Planets, Structural design, Optical components, Finite element methods, Interfaces

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Proceedings Article | 16 September 2004 Paper

Modeling the TPF interferometer

Brent Ware, Curt Henry

Proceedings Volume 5497, (2004) https://doi.org/10.1117/12.550265

KEYWORDS: Systems modeling, Thermal modeling, Interferometers, Computer aided design, Control systems, Performance modeling, Integrated modeling, Data modeling, Space operations, Thermography

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Proceedings Article | 19 November 2003 Paper

System design and technology development for the Terrestrial Planet Finder infrared interferometer

Gary Blackwood, Eugene Serabyn, Serge Dubovitsky, MiMi Aung, Steven Gunter, Curt Henry

Proceedings Volume 5170, (2003) https://doi.org/10.1117/12.521311

KEYWORDS: Interferometers, Stars, Planets, Nulling interferometry, Space operations, Sensors, Control systems, Systems modeling, Mid-IR, Cryogenics

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Showing 5 of 9 publications

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