Mr. Jeffrey Scott Smith Profile

Jeffrey Scott Smith

Optical Engineer at NASA Goddard Space Flight Ctr

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Author

Publications (26)

Proceedings Article | 4 October 2023 Presentation + Paper

Roman optical telescope integration status and preparation for test

Tony Whitman, Peter Miller, Joshua Abel, Bente Eegholm, Matthew Bolcar, J. Scott Smith, Brian Martens, Pete McCarthy, Joel Proebstle, Erin Schiele

Proceedings Volume 12676, 126760P (2023) https://doi.org/10.1117/12.2679201

KEYWORDS: Mirrors, Optical fabrication, Optical telescopes, Telescopes, Optical testing, Integrated optics, Wavefront sensors, Vibration, Wavefront errors, Equipment

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Proceedings Article | 27 August 2022 Presentation + Paper

Roman optical telescope assembly (OTA) build and integration progress

Tony Whitman, Peter Miller, Joshua Abel, J. Scott Smith, Brian Martens, Perry Voyer, Dave Smith, Erin Schiele

Proceedings Volume 12180, 121801N (2022) https://doi.org/10.1117/12.2630105

KEYWORDS: Mirrors, Optical fabrication, Telescopes, Optical testing, Actuators, Optical telescopes, Electronics, Optical instrument design

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Proceedings Article | 30 July 2018 Presentation + Paper

Wide-Field Infrared Survey Telescope (WFIRST): optical telescope assembly (OTA) status

J. Scott Smith, Lisa Bartusek, Tom Casey, Dave Content, Christine Cottingham, Rob Egerman, Joe Marzouk, James Mondello, Bonnie Patterson, Perry Voyer, Dave Smith, Tony Whitman, Timothy Wilson

Proceedings Volume 10698, 106982D (2018) https://doi.org/10.1117/12.2311772

KEYWORDS: Telescopes, Mirrors, Space telescopes, Signal to noise ratio, Infrared telescopes, Optical fabrication, Observatories, Optical instrument design, Infrared radiation, James Webb Space Telescope

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Proceedings Article | 10 July 2018 Presentation

The wide field infrared survey telescope (WFIRST) observatory: design formulation (phase-A) overview (Conference Presentation)

Thomas Casey, Nerses Armani, Wes Alexander, Lisa Bartusek, Carl Blaurock, David Braun, Alexander Carra, David Content, Yves Conturie, Christine Cottingham, Richard Demers, Michael Dipirro, Robert Effinger, Robert Egerman, Frank Forkl, Guangjun Gao, John Gygax, John Hagopian, Timothy Hahm, John Hawk, Gurnie Hobbs, Clifton Jackson, Alden Jurling, Brian Kern, Jeffrey Kruk, Xiaoyi Li, Kuo-chia Liu, Catherine Marx, Marzouk Marzouk, Carson McDonald, Seke Godo, Mark Melton, James Mondello, M. Charley Noecker, Bert Pasquale, Hume Peabody, Ilya Poberezhskiy, Cory Powell, Giulio Rosanova, John Ruffa, Jeffrey Smith, Hong Tang, Christopher Tolman, Arthur Whipple, Timothy Wilson, Melissa Vess, Perry Voyer

Proceedings Volume 10698, 106982C (2018) https://doi.org/10.1117/12.2313748

KEYWORDS: Infrared telescopes, Space telescopes, Observatories, Telescopes, Infrared radiation, Optical instrument design, Infrared imaging, Exoplanets, Imaging spectroscopy, Coronagraphy

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Proceedings Article | 6 July 2018 Paper

Wide-field infrared survey telescope (WFIRST): composite structure verification for operational temperatures

James Mondello, Paul Baird, Lisa Bartusek, David Content, Robert Egerman, Marzouk Marzouk, Bonnie Patterson, Thomas Quinzi, Benjamin Rodini, Cory Smiley, J. Scott Smith

Proceedings Volume 10698, 106982G (2018) https://doi.org/10.1117/12.2322756

KEYWORDS: Composites, Temperature metrology, Infrared telescopes, Telescopes, Adhesives, Ultrasonics

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Proceedings Article | 22 August 2017 Presentation + Paper

Ground to on-orbit alignment study of the WFIRST wide-field channel and resulting changes in the telescope architecture

John Hagopian, Nerses Armani, Lisa Bartusek, Tom Casey, Dave Content, Yves Conturie, Guangjun Gao, Alden Jurling, Cathy Marx, Joe Marzouk, Bert Pasquale, J. Scott Smith, Hong Tang, Arthur Whipple

Proceedings Volume 10377, 103770E (2017) https://doi.org/10.1117/12.2280333

KEYWORDS: Space telescopes, Telescopes, Mirrors, Infrared telescopes, Space operations, Optical telescopes, Coronagraphy, Monte Carlo methods, Infrared astronomy, Infrared radiation

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Proceedings Article | 27 September 2016 Presentation + Paper

Optical testing and verification methods for the James Webb Space Telescope Integrated Science Instrument Module element

Scott Antonille, Cherie Miskey, Raymond Ohl, Scott Rohrbach, David Aronstein, Andrew Bartoszyk, Charles Bowers, Emmanuel Cofie, Nicholas Collins, Brian Comber, William Eichhorn, Alistair Glasse, Renee Gracey, George Hartig, Joseph Howard, Douglas Kelly, Randy Kimble, Jeffrey Kirk, David Kubalak, Wayne Landsman, Don Lindler, Eliot Malumuth, Michael Maszkiewicz, Marcia Rieke, Neil Rowlands, Derek Sabatke, Corbett Smith, J. Scott Smith, Joseph Sullivan, Randal Telfer, Maurice Te Plate, M. Begoña Vila, Gerry Warner, David Wright, Raymond Wright, Julia Zhou, Thomas Zielinski

Proceedings Volume 9951, 995105 (2016) https://doi.org/10.1117/12.2238838

KEYWORDS: James Webb Space Telescope, Optical components, Space telescopes, Optical testing, Sensors, Calibration, Data modeling, Human-machine interfaces, Error analysis, Analytical research

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Proceedings Article | 29 July 2016 Paper

Wavefront-error performance characterization for the James Webb Space Telescope (JWST) Integrated Science Instrument Module (ISIM) science instruments

David Aronstein, J. Smith, Thomas Zielinski, Randal Telfer, Severine Tournois, Dustin Moore, James Fienup

Proceedings Volume 9904, 990409 (2016) https://doi.org/10.1117/12.2233842

KEYWORDS: James Webb Space Telescope, Wavefronts, Monte Carlo methods, Space telescopes, Wavefront sensors, Aerospace engineering, Silicon, Sensors, Detection and tracking algorithms, Mirrors

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The science instruments (SIs) comprising the James Webb Space Telescope (JWST) Integrated Science Instrument Module (ISIM) were tested in three cryogenic-vacuum test campaigns in the NASA Goddard Space Flight Center (GSFC)'s Space Environment Simulator (SES) test chamber. In this paper, we describe the results of optical wavefront-error performance characterization of the SIs. The wavefront error is determined using image-based wavefront sensing, and the primary data used by this process are focus sweeps, a series of images recorded by the instrument under test in its as-used configuration, in which the focal plane is systematically changed from one image to the next. High-precision determination of the wavefront error also requires several sources of secondary data, including 1) spectrum, apodization, and wavefront-error characterization of the optical ground-support equipment (OGSE) illumination module, called the OTE Simulator (OSIM), 2) f/# and pupil-distortion measurements made using a pseudo-nonredundant mask (PNRM), and 3) pupil-geometry predictions for each SI field point tested, which are complicated because of a tricontagon-shaped outer perimeter and small holes that appear in the exit pupil due to the way that different light sources are injected into the optical path by the OGSE. One set of wavefront-error tests, for the coronagraphic channel of the Near-Infrared Camera (NIRCam) Longwave instruments, was performed using data from transverse-translation diversity (TTD) sweeps instead of focus sweeps, in which a subaperture is translated and/or rotated across the exit pupil of the system from one image to the next. Several optical-performance requirements that were verified during this ISIM Element-level testing are levied on the uncertainties of various wavefront-error-related quantities rather than on the wavefront errors themselves. This paper also gives an overview of the methodology, based on Monte Carlo simulations of the wavefront-sensing analysis of focus-sweep data, used to establish the uncertainties of the wavefront-error maps.

Proceedings Article | 21 September 2012 Paper

Qualification of a null lens using image-based phase retrieval

Matthew Bolcar, David Aronstein, Peter Hill, J. Scott Smith, Thomas Zielinski

Proceedings Volume 8442, 844251 (2012) https://doi.org/10.1117/12.926231

KEYWORDS: Wavefronts, Sensors, Phase retrieval, Data modeling, Point spread functions, Wave propagation, Aspheric lenses, Light wave propagation, Monochromatic aberrations, Aspheric optics

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Proceedings Article | 21 September 2012 Paper

Wavefront sensing and controls for the James Webb Space Telescope

D. Scott Acton, J. Scott Knight, A. Contos, Stefano Grimaldi, J. Terry, P. Lightsey, A. Barto, B. League, Bruce Dean, J. Scott Smith, Charles Bowers, D. Aronstein, L. Feinberg, W. Hayden, T. Comeau, R. Soummer, E. Elliott, M. Perrin, Carl Starr

Proceedings Volume 8442, 84422H (2012) https://doi.org/10.1117/12.925015

KEYWORDS: Image segmentation, Telescopes, Wavefronts, Space telescopes, James Webb Space Telescope, Phase modulation, Control systems, Image processing, Phase retrieval, Monochromatic aberrations

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Proceedings Article | 10 November 2011 Paper

Parallel-computing architecture for JWST wavefront-sensing and integrated modeling

J. Scott Smith, Bruce Dean, Alexander Rilee, Thomas Zielinski

Proceedings Volume 8336, 83360Y (2011) https://doi.org/10.1117/12.920199

KEYWORDS: James Webb Space Telescope, Phase retrieval, Digital signal processing, Algorithm development, Integrated modeling, Wavefront sensors, Space telescopes, Computer architecture, Silicon, Commercial off the shelf technology

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Proceedings Article | 11 August 2010 Paper

Optical wavefront characterization using phase retrieval for the NIRSpec demonstration model for the James Webb Space Telescope

Jeffrey Smith, David Aronstein, Pamela Davila, Bruce Dean, Bernhard Dorner, Xavier Gnata, Markus Melf, Jean-François Pittet, Maurice B. Te Plate

Proceedings Volume 7731, 77313P (2010) https://doi.org/10.1117/12.857755

KEYWORDS: Phase retrieval, Wavefronts, Sensors, James Webb Space Telescope, Wavefront sensors, Cryogenics, Monochromatic aberrations, Monte Carlo methods, Data modeling, Error analysis

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Proceedings Article | 6 August 2010 Paper

ATLAST-9.2m: a large-aperture deployable space telescope

William Oegerle, Lee Feinberg, Lloyd Purves, T. Tupper Hyde, Harley Thronson, Jacqueline Townsend, Marc Postman, Matthew Bolcar, Jason Budinoff, Bruce Dean, Mark Clampin, Dennis Ebbets, Qian Gong, Theodore Gull, Joseph Howard, Andrew Jones, Richard Lyon, Bert Pasquale, Charles Perrygo, Jeffrey Smith, Patrick Thompson, Bruce Woodgate

Proceedings Volume 7731, 77312M (2010) https://doi.org/10.1117/12.857622

KEYWORDS: Mirrors, Space telescopes, Telescopes, James Webb Space Telescope, Sensors, Sun, Observatories, Ultraviolet radiation, Stray light, Stars

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Proceedings Article | 5 August 2010 Paper

An update on the role of systems modeling in the design and verification of the James Webb Space Telescope

Danniella Muheim, Michael Menzel, Gary Mosier, Joseph Howard, Sandra Irish, Peiman Maghami, Kimberly Mehalick, Keith Parrish, Joseph Pitman, Shaun Thomson, Charity Asuquo, Carl Blaurock, Cherie Congedo, Kong Ha, Norman Holmes, Frank Liu, Mark McGinnis, Stephen Mariconti, Christopher May, Blair Russell, James Sanders, Shahram Shiri, Jeffrey Smith, Dennis Skelton

Proceedings Volume 7738, 773814 (2010) https://doi.org/10.1117/12.856897

KEYWORDS: Systems modeling, James Webb Space Telescope, Observatories, Thermal modeling, Data modeling, Mathematical modeling, Solid modeling, Space telescopes, Performance modeling, Distortion

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Proceedings Article | 27 August 2009 Paper

Large segmented UV-optical space telescope using a Hybrid Sensor Active Control (HSAC) architecture

Lee Feinberg, Bruce Dean, Tupper Hyde, Bill Oegerle, Matthew Bolcar, J. Scott Smith

Proceedings Volume 7436, 743608 (2009) https://doi.org/10.1117/12.824198

KEYWORDS: James Webb Space Telescope, Mirrors, Space telescopes, Sensors, Stars, Telescopes, Wavefronts, Image segmentation, Phase modulation, Wavefront sensors

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Proceedings Article | 26 August 2009 Paper

Phase retrieval on broadband and under-sampled images for the JWST testbed telescope

J. Scott Smith, David Aronstein, Bruce Dean, D. Scott Acton

Proceedings Volume 7436, 74360D (2009) https://doi.org/10.1117/12.825636

KEYWORDS: James Webb Space Telescope, Phase retrieval, Wavefronts, Monochromatic aberrations, Telescopes, Space telescopes, Data modeling, Wavefront sensors, Sensors, Aerospace engineering

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Proceedings Article | 11 July 2008 Paper

Optical modeling activities for NASA's James Webb Space Telescope (JWST): Part V. Operational alignment updates

Joseph Howard, Kong Ha, Ron Shiri, J. Scott Smith, Gary Mosier, Danniella Muheim

Proceedings Volume 7017, 70170X (2008) https://doi.org/10.1117/12.790237

KEYWORDS: Wavefronts, James Webb Space Telescope, Point spread functions, Mirrors, Space telescopes, Wavefront sensors, Motion models, Observatories, Telescopes, Spatial frequencies

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Proceedings Article | 1 November 2007 Paper

Wavefront control toolbox for James Webb Space Telescope testbed

Ron Shiri, David Aronstein, Jeffery Smith, Bruce Dean, Erin Sabatke

Proceedings Volume 6711, 67110P (2007) https://doi.org/10.1117/12.736314

KEYWORDS: Mirrors, James Webb Space Telescope, Wavefronts, Image segmentation, Control systems, Detection and tracking algorithms, Telescopes, Space telescopes, Zemax, Interfaces

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Proceedings Article | 21 September 2007 Paper

A scanning Hartmann focus test for the EUVI telescopes aboard STEREO

R. Ohl, S. Antonille, D. Aronstein, B. Dean, M. Delmont, J. d'Entremont, W. Eichhorn, B. Frey, S. Hynes, D. Janssen, D. Kubalak, K. Redman, R. Shiri, J. Smith, P. Thompson, M. Wilson

Proceedings Volume 6676, 66760G (2007) https://doi.org/10.1117/12.734655

KEYWORDS: Collimators, Telescopes, Space telescopes, Mirrors, Error analysis, Sensors, Ultraviolet radiation, Eye, Interferometers, Mendelevium

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Proceedings Article | 20 September 2007 Paper

End-to-end commissioning demonstration of the James Webb Space Telescope

D. Scott Acton, Timothy Towell, John Schwenker, Duncan Shields, Erin Sabatke, Adam Contos, Karl Hansen, Fang Shi, Bruce Dean, Scott Smith

Proceedings Volume 6687, 668706 (2007) https://doi.org/10.1117/12.731653

KEYWORDS: Image segmentation, James Webb Space Telescope, Image processing, Phase modulation, Space telescopes, Wavefronts, Telescopes, Mirrors, Aerospace engineering, Imaging arrays

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Proceedings Article | 20 September 2007 Paper

TRL-6 for JWST wavefront sensing and control

Lee Feinberg, Bruce Dean, David Aronstein, Charles Bowers, William Hayden, Richard Lyon, Ron Shiri, J. Scott Smith, D. Scott Acton, Larkin Carey, Adam Contos, Erin Sabatke, John Schwenker, Duncan Shields, Tim Towell, Fang Shi, Luis Meza

Proceedings Volume 6687, 668708 (2007) https://doi.org/10.1117/12.736059

KEYWORDS: Image segmentation, James Webb Space Telescope, Wavefronts, Phase retrieval, Mirrors, Telescopes, Wavefront sensors, Sensors, Cameras, Phase modulation

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Proceedings Article | 20 September 2007 Paper

Co-adding techniques for image-based wavefront sensing for segmented-mirror telescopes

J. Smith, David Aronstein, Bruce Dean, D. Acton

Proceedings Volume 6687, 668711 (2007) https://doi.org/10.1117/12.736401

KEYWORDS: Wavefronts, Point spread functions, Image segmentation, Wavefront sensors, James Webb Space Telescope, Phase retrieval, Sensors, Telescopes, Space telescopes, Signal to noise ratio

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Proceedings Article | 27 June 2006 Paper

Distributed computing architecture for image-based wavefront sensing and 2D FFTs

Jeffrey Smith, Bruce Dean, Shadan Haghani

Proceedings Volume 6274, 627421 (2006) https://doi.org/10.1117/12.672842

KEYWORDS: Digital signal processing, Field programmable gate arrays, Computer architecture, Wavefront sensors, Magnesium, Algorithm development, Distributed computing, James Webb Space Telescope, Signal processing, Image processing

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Proceedings Article | 16 June 2006 Paper

Wavefront sensing and control architecture for the Spherical Primary Optical Telescope (SPOT)

Bruce Dean, Jeff Smith, Jason Budinoff, Lee Feinberg

Proceedings Volume 6265, 62654F (2006) https://doi.org/10.1117/12.673450

KEYWORDS: Digital signal processing, Wavefront sensors, Image segmentation, Mirrors, Hough transforms, Actuators, Image processing, Spherical lenses, Calibration, Signal processing

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Proceedings Article | 13 June 2006 Paper

Phase retrieval algorithm for JWST Flight and Testbed Telescope

Bruce Dean, David Aronstein, J. Scott Smith, Ron Shiri, D. Scott Acton

Proceedings Volume 6265, 626511 (2006) https://doi.org/10.1117/12.673569

KEYWORDS: James Webb Space Telescope, Phase retrieval, Wavefronts, Mirrors, Digital signal processing, Algorithm development, Image segmentation, Data modeling, Space telescopes, Telescopes

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Proceedings Article | 12 October 2004 Paper

Wavefront sensing using a multi-object spectrograph (NIRSpec)

Bruce Dean, Rene Boucarut, Jeffrey Smith, Theo Hadjimichael

Proceedings Volume 5487, (2004) https://doi.org/10.1117/12.550912

KEYWORDS: Wavefront sensors, Data modeling, Diffraction, James Webb Space Telescope, Phase retrieval, Spectrographs, Mirrors, Cameras, Point spread functions, Astronomical imaging

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Showing 5 of 26 publications

Conference Committee Involvement (1)

UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts XI

20 August 2023 | San Diego, California, United States

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