Mr. Michael S. Jacoby Profile

Michael S. Jacoby

at Lockheed Martin Space Systems Co

SPIE Involvement:

Author

Publications (22)

SPIE Journal Paper | 26 October 2023

Line emission mapper cryogenic system design

Elizabeth Osborne, Jeffrey Olson, Michael Jacoby, Isaac Hayden, Caroline Kilbourne, Simon Bandler, Xiaoyi Li, Edgar Canavan, Joseph Adams

JATIS, Vol. 9, Issue 04, 041007, (October 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.4.041007

KEYWORDS: Cryocoolers, Design, Cryogenics, Tunable filters, Sensors, Interfaces, Staring arrays, X-rays, Head, Equipment

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Proceedings Article | 27 August 2022 Presentation + Paper

Line-of-sight and wavefront error dynamic stability during coronagraphic imaging for a 6.7-meter inscribed diameter UVOIR segmented telescope with non-contact pointing and vibration isolation

Kiarash Tajdaran, Larry Dewell, Michael Jacoby, Alison Nordt, John Lou

Proceedings Volume 12180, 121802L (2022) https://doi.org/10.1117/12.2630343

KEYWORDS: Control systems, Space operations, Actuators, Interfaces, Sensors, Observatories, Performance modeling, Wavefronts, Coronagraphy, Telescopes

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The Ultraviolet/Optical/Infrared (UVOIR) flagship astrophysics architectures proposed by the Astro2020 Decadal Survey fundamentally challenge the current test-like-you-fly approach to space systems, because of their physical scale, multiple stages of on-orbit deployment, and extremely stringent optical performance requirements unique to visible-light coronagraphy. These limitations elevate the importance of integrated control, structural dynamics, and optical modeling, particularly in early system architecture studies. A unique non-contact observatory control architecture called Disturbance Free Payload (DFP) for next-generation large astrophysics observatories involves physically isolating the segmented telescope structure from the supporting spacecraft by means of a non-contact interface. In this control architecture, rigidbody telescope pointing is achieved by actuating the payload with non-contact voice coil actuators and maintaining positive interface gaps using spacecraft inertial actuators and interface non-contact sensors. This architecture presents distinct advantages over current state-of-the-art spacecraft vibration isolation approaches, particularly for large flexible spacecraft, but also introduces unique disturbance and coupling mechanisms that must be analyzed. In this paper, development of an integrated model is described, consisting of a 6.7-meter inscribed segmented optical system, and an unobscured telescope with 55 primary mirror segments. The paper starts with an overview of the models that directly predict time-domain lineof-sight and wavefront error dynamic stability (optics, dynamics, control system, error sources). Next, key dynamic stability performance metrics for coronagraph contrast performance are described and a systematic methodology for realizing an accurate but computationally feasible truncated modal model is presented. Finally, an exemplar point design that is compliant to 10-picometer RMS wavefront error is developed, and the necessary component errors to achieve this performance are presented.

SPIE Journal Paper | 6 January 2021 Open Access

Origins Space Telescope: baseline mission concept

Edward Amatucci, Lynn Allen, Jonathan Arenberg, Lee Armus, Cara Battersby, James Bauer, Porfirio Beltran, Dominic Benford, Denis Burgarella, Ruth Carter, Danny Chi, Asantha Cooray, James Corsetti, Elvire De Beck, Larry Dewell, Michael DiPirro, Matthew East, Samantha Edgington, Kimberly Ennico, Louis Fantano, David Folta, Joseph Generie, Zachary Granger, Thomas Greene, Alex Griffiths, George Harpole, Frank Helmich, Joseph Howard, Tracee Jamison, Lisa Kaltenegger, Tiffany Kataria, Charles Lawrence, Margaret Meixner, Ted Mooney, Samuel Moseley, Susan Neff, Thanh Nguyen, Alison Nordt, Michael Petach, Susanna Petro, Alexandra Pope, Daniel Ramspacker, Alison Rao, Itsuki Sakon, Karin Sandstrom, Douglas Scott, Lenward Seals, Kartik Sheth, Steven Tompkins, Cassandra Webster, Martina Wiedner, Edward Wright, Chi Wu, Jonas Zmuidzinas, David Leisawitz, Bob Beaman, Raymond Bell, Edward Bergin, Jeffrey Bolognese, Charles Bradford, Damon Bradley, Sean Carey, Tom D'Asto, Kevin Denis, Christopher Derkacz, C. Paul Earle, Gregory Feller, Jonathan Fortney, Benjamin Gavares, Maryvonne Gerin, Keith Harvey, Lawrence Hilliard, Michael Jacoby, Anisa Jamil, J. Scott Knight, Perry Knollenberg, Paul Lightsey, Sarah Lipscy, Eric Mamajek, Gregory Martins, John Mather, Gary Melnick, Stefanie Milam, Desika Narayanan, Jeffrey Olson, Deborah Padgett, John Pohner, Klaus Pontoppidan, Thomas Roellig, Carly Sandin, Larry Sokolsky, Johannes Staguhn, John Steeves, Kevin Stevenson, Eric Stoneking, Kate Su, Kiarash Tajdaran, Joaquin Vieira

JATIS, Vol. 7, Issue 01, 011002, (January 2021) https://doi.org/10.1117/12.10.1117/1.JATIS.7.1.011002

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Proceedings Article | 9 September 2019 Presentation + Paper

Dynamic wavefront error and line-of-sight performance predictions for the 15-meter segmented Large Ultraviolet/Optical/Infrared Surveyor (LUVOIR) with non-contact vibration isolation

Larry Dewell, Alison Nordt, Ankur Chopra, Matthew Bolcar, Julie Crooke, Michael Jacoby, Kiarash Tajdaran, Torben Andersen

Proceedings Volume 11115, 111150S (2019) https://doi.org/10.1117/12.2528190

KEYWORDS: Wavefronts, Vibration isolation, Mirrors, Coronagraphy, Observatories, Image segmentation, Imaging systems, Control systems, Integrated modeling, Performance modeling

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Proceedings Article | 9 September 2019 Open Access

The Origins Space Telescope

D. Leisawitz, E. Amatucci, L. Allen, J. Arenberg, L. Armus, C. Battersby, B. Beaman, J. Bauer, R. Bell, P. Beltran, D. Benford, E. Bergin, J. Bolognese, C. Bradford, D. Bradley, D. Burgarella, S. Carey, R. Carter, J. Chi, A. Cooray, J. Corsetti, T. D'Asto, E. De Beck, K. Denis, C. Derkacz, L. Dewell, M. DiPirro, C. P. Earle, M. East, S. Edgington, K. Ennico, L. Fantano, G. Feller, A. Flores, D. Folta, J. Fortney, B. Gavares, J. Generie, M. Gerin, Z. Granger, T. Greene, A. Griffiths, G. Harpole, K. Harvey, F. Helmich, G. Helou, L. Hilliard, J. Howard, M. Jacoby, A. Jamil, T. Jamison, L. Kaltenegger, T. Kataria, J. S. Knight, P. Knollenberg, C. Lawrence, P. Lightsey, S. Lipscy, C. Lynch, E. Mamajek, G. Martins, J. Mather, M. Meixner, G. Melnick, S. Milam, T. Mooney, S. Moseley, D. Narayanan, S. Neff, T. Nguyen, A. Nordt, J. Olson, D. Padgett, M. Petach, S. Petro, J. Pohner, K. Pontoppidan, A. Pope, D. Ramspacher, A. Rao, G. Rieke, M. Rieke, T. Roellig, I. Sakon, C. Sandin, K. Sandstrom, D. Scott, L. Seals, K. Sheth, J. Staguhn, J. Steeves, K. Stevenson, L. Stokowski, E. Stoneking, K. Su, K. Tajdaran, S. Tompkins, J. Turner, J. Vieira, C. Webster, M. Wiedner, E. Wright, C. Wu, J. Zmuidzinas

Proceedings Volume 11115, 111150Q (2019) https://doi.org/10.1117/12.2530514

KEYWORDS: Galactic astronomy, Planets, Stars, Telescopes, Astronomy, James Webb Space Telescope, Sensors, Space telescopes, Exoplanets, Observatories

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Proceedings Article | 24 July 2018 Presentation + Paper

The Origins Space Telescope: mission concept overview

D. Leisawitz, E. Amatucci, R. Carter, M. DiPirro, A. Flores, J. Staguhn, C. Wu, L. Allen, J. Arenberg, L. Armus, C. Battersby, J. Bauer, R. Bell, P. Beltran, D. Benford, E. Bergin, C. Bradford, D. Bradley, D. Burgarella, S. Carey, D. Chi, A. Cooray, J. Corsetti, E. De Beck, K. Denis, L. Dewell, M. East, S. Edgington, K. Ennico, L. Fantano, G. Feller, D. Folta, J. Fortney, J. Generie, M. Gerin, Z. Granger, G. Harpole, K. Harvey, F. Helmich, L. Hilliard, J. Howard, M. Jacoby, A. Jamil, T. Kataria, S. Knight, P. Knollenberg, P. Lightsey, S. Lipscy, E. Mamajek, G. Martins, M. Meixner, G. Melnick, S. Milam, T. Mooney, S. Moseley, D. Narayanan, S. Neff, T. Nguyen, A. Nordt, J. Olson, D. Padgett, M. Petach, S. Petro, J. Pohner, K. Pontoppidan, A. Pope, D. Ramspacher, T. Roellig, I. Sakon, C. Sandin, K. Sandstrom, D. Scott, K. Sheth, J. Steeves, K. Stevenson, L. Stokowski, E. Stoneking, K. Su, K. Tajdaran, S. Tompkins, J. Vieira, C. Webster, M. Wiedner, E. Wright, J. Zmuidzinas

Proceedings Volume 10698, 1069815 (2018) https://doi.org/10.1117/12.2313823

KEYWORDS: Space telescopes, Telescopes, Spectroscopy, Sensors, Mirrors, Astrophysics, Astronomy, James Webb Space Telescope, Aerospace engineering, Cryocoolers

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Proceedings Article | 23 August 2017 Presentation + Paper

The opto-mechanical design process: from vision to reality

E. Todd Kvamme, David Stubbs, Michael Jacoby

Proceedings Volume 10371, 103710P (2017) https://doi.org/10.1117/12.2275671

KEYWORDS: Optomechanical design, Structural design, Structural engineering, Mechanical engineering, Systems engineering

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Proceedings Article | 27 September 2013 Paper

JWST NIRCam pick-off mirror grounding

Howard Demroff, Paul Mammini, Mike Jacoby, Brian Jones, Sidney Hu, Ron Dammann, James Mathieson

Proceedings Volume 8863, 88630F (2013) https://doi.org/10.1117/12.2024811

KEYWORDS: Mirrors, James Webb Space Telescope, Epoxies, Metals, Resistance, Finite element methods, Charged particle optics, Inspection, Optical testing, Reflectivity

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Proceedings Article | 18 September 2013 Paper

Implementing stray light baffles for improved JWST NIRCam performance

Paul Mammini, Tom Birge, Paul Dineen, Craig Hom, Michael Jacoby, Alison Nordt, Rob Shivitz

Proceedings Volume 8836, 88360T (2013) https://doi.org/10.1117/12.2024374

KEYWORDS: Stray light, Staring arrays, James Webb Space Telescope, Optical fabrication, Epoxies, Mirrors, Neodymium, Computer aided design, Cameras, Cryogenics

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Proceedings Article | 1 October 2011 Paper

Redesign and test of cryogenic mechanism for improved stiffness

Charles Clark, Michael Jacoby

Proceedings Volume 8150, 81500J (2011) https://doi.org/10.1117/12.896642

KEYWORDS: Optics manufacturing, Optical fabrication, James Webb Space Telescope, Silica, Optical design, Cryogenic mechanisms, Mirrors, Light emitting diodes, Electromechanical design, Titanium

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Proceedings Article | 29 September 2011 Paper

Flight build of the collimator and shortwave camera optics on NIRCam

E. Todd Kvamme, Mike Jacoby, Troy Hix

Proceedings Volume 8150, 81500F (2011) https://doi.org/10.1117/12.896459

KEYWORDS: Collimators, Cameras, Shortwaves, Tolerancing, Lens design, Optical fabrication, Interfaces, James Webb Space Telescope, Optical alignment, Adhesives

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Proceedings Article | 29 September 2011 Paper

Design, build, and test of the NIRCam focal plane array housing

Danielle Little, Michael Jacoby, Edwin Casco

Proceedings Volume 8150, 81500G (2011) https://doi.org/10.1117/12.896488

KEYWORDS: Mirrors, Staring arrays, Mirror mounts, Optical fabrication, Wavefronts, James Webb Space Telescope, Optical testing, Shortwaves, Interferometers, Contamination

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Proceedings Article | 29 September 2011 Paper

JWST NIRCam flight mirror assemblies

Paul Mammini, Howard Holmes, Lynn Huff, Mike Jacoby, Frank Lopez

Proceedings Volume 8150, 81500D (2011) https://doi.org/10.1117/12.896470

KEYWORDS: Mirrors, Optical fabrication, James Webb Space Telescope, Silicon, Finite element methods, Shortwaves, Epoxies, Thermography, Analytical research, Cryogenics

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Proceedings Article | 24 September 2011 Paper

Mounting small optics for cryogenic space missions

Paul Mammini, Howard Holmes, Mike Jacoby, E. Todd Kvamme

Proceedings Volume 8125, 81250Q (2011) https://doi.org/10.1117/12.896449

KEYWORDS: Mirrors, Cryogenics, Space operations, Epoxies, Optical mounts, Thermography, Surface finishing, Silicon, Silica, Optical fabrication

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Proceedings Article | 18 September 2009 Paper

Cold alignment prediction of the NIRCam instrument components

Alison Nordt, Michael Jacoby

Proceedings Volume 7439, 74391G (2009) https://doi.org/10.1117/12.827951

KEYWORDS: Finite element methods, Titanium, Content addressable memory, Optical mounts, Interfaces, Integrated optics, Cameras, James Webb Space Telescope, Mirrors, Optical benches

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Proceedings Article | 18 September 2009 Paper

Results of environmental testing of the focus and alignment mechanism of the near-infrared camera on the James Webb Space Telescope

Bear Witherspoon, Lynn Huff, Michael Jacoby, Paul Mammini

Proceedings Volume 7439, 74391F (2009) https://doi.org/10.1117/12.826562

KEYWORDS: Mirrors, Cameras, James Webb Space Telescope, Sensors, Actuators, Cryogenics, Imaging systems, Near infrared, Titanium, Calibration

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Proceedings Article | 18 September 2009 Paper

NIRCam filter wheel optic mount design

Béla Privári, Craig Hom, Michael Jacoby

Proceedings Volume 7439, 74391E (2009) https://doi.org/10.1117/12.826533

KEYWORDS: Optical filters, Silica, Silicon, Ear, Thermography, Interfaces, Optical design, James Webb Space Telescope, Image filtering, Tolerancing

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Proceedings Article | 22 August 2009 Paper

NIRCam optical bench assembly qualification vibration testing

Michael Jacoby, Alison Nordt

Proceedings Volume 7425, 74250K (2009) https://doi.org/10.1117/12.828256

KEYWORDS: Optical fabrication, Optical benches, Cameras, Beryllium, Transducers, Finite element methods, Aerospace engineering, James Webb Space Telescope, Analytical research, Imaging systems

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Proceedings Article | 22 August 2009 Paper

Cryogenic adhesive testing for the NIRCam optical bench assembly

Michael Jacoby, Alison Nordt, Bryan Hurlbut

Proceedings Volume 7425, 74250J (2009) https://doi.org/10.1117/12.828262

KEYWORDS: Adhesives, Cryogenics, Beryllium, Optical benches, Optical fabrication, Failure analysis, Finite element methods, Near infrared, Cameras, Stress analysis

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Proceedings Article | 12 July 2008 Paper

Opto-mechanical test results for the Near Infra-red Camera on the James Webb Space Telescope

E. Todd Kvamme, Michael Jacoby, Liz Osborne

Proceedings Volume 7010, 70100Z (2008) https://doi.org/10.1117/12.784455

KEYWORDS: Collimators, Interfaces, Content addressable memory, Cameras, Optical fabrication, James Webb Space Telescope, Reticles, Tolerancing, Mirrors, Assembly tolerances

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Proceedings Article | 12 September 2007 Paper

NIRCam fold mirror and mount designs

Alison Nordt, Michael Jacoby, Brent Biggs, Todd Kvamme, Ted Cahoon

Proceedings Volume 6692, 66920F (2007) https://doi.org/10.1117/12.742101

KEYWORDS: Mirrors, Mirror mounts, Prototyping, Interfaces, Tolerancing, Distortion, Shortwaves, James Webb Space Telescope, Manufacturing, Error analysis

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Proceedings Article | 5 January 2005 Paper

Telescope performance near local midnight for the Japanese Advanced Meteorological Imager (JAMI)

Milutin Pavlov, James Bell, W. Todd Hurt, Michael Jacoby, Belinda Shreckengost, Russ Ravela, Mark Schwarz

Proceedings Volume 5658, (2005) https://doi.org/10.1117/12.583099

KEYWORDS: Telescopes, Modulation transfer functions, Mirrors, Sun, Thermography, Space telescopes, Stray light, Performance modeling, Imaging systems, Distortion

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Showing 5 of 22 publications

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