Dr. Howard A. MacEwen Profile

Dr. Howard A. MacEwen

Founder and Owner Reviresco, LLC

SPIE Involvement:

Editor | Author

Proceedings Article | 24 July 2018 Presentation + Paper

Servicing and assembly: enabling the most ambitious future space observatories

Ronald Polidan, W. Belvin, M. Greenhouse, J. Grunsfeld, J. Guidi, H. MacEwen, R. Mukherjee, B. Peterson, B. Reed, N. Siegler, H. Thronson

Proceedings Volume 10698, 1069825 (2018) https://doi.org/10.1117/12.2313013

KEYWORDS: Space telescopes, Telescopes, Optical instrument design, Astrophysics, Robotics, Space observatories, Large telescopes, Observatories, Mirrors, Interferometry

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The scientific measurement requirements of future major space astronomy missions are pushing the design limits that can be autonomously deployed JWST-style from even the largest plausible launch vehicles in the 2030s and beyond. In addition, to maximize the scientific return and make missions more cost-effective, they should be capable of being serviced and upgraded. This requirement was even codified by the US Congress in 2010 to ensure the best use of taxpayer investments in science. We need to advance technologies to support this new generation of space telescopes and utilize planned NASA assets to lower costs, reduce risks, and extend mission life of flagship-class science programs for astrophysics and other NASA science. These missions will be capable of searching very large numbers of extrasolar planets for evidence of life and will enable studies, in detail, of the structure of the first star-forming complexes in the earliest galaxies and the central engines in distant galaxies, and will be powerful tools for general astrophysics and solar system science. We will present and discuss current concepts for using astronauts and robots to service, upgrade, and eventually assemble space observatories and starshades designed to achieve major breakthroughs in our understanding of the cosmos. Notional telescopic missions and instruments (filled apertures, interferometers, evolvable systems, and starshades, among others) will be used to illustrate key characteristics of this approach and demonstrate the broad application such a deep-space facility would provide science missions. The goal of this effort is to understand how to use planned NASA human spaceflight assets and infrastructure, with minimal modification, to assemble, test, and service high-value science facilities. These deep space assets are currently being defined and now is the time to jointly develop requirements and capabilities that meet both science and human exploration objectives. The technical and engineering merits and challenges of in-space servicing and assembly will be discussed, including issues of launching telescopes and instruments in parts, assembly in space, and repair and replacement of instruments and systems. Possible future space infrastructure that may make on-orbit assembly and servicing feasible will also be discussed. Precursors and demonstration activities will be presented, as well as early candidate missions for in-space upgrade and servicing.

Proceedings Article | 5 September 2017 Open Access

A 4-m evolvable space telescope configured for NASA's HabEx Mission: the initial stage of LUVOIR

Charles Lillie, Howard MacEwen, Ronald Polidan, James Breckinridge

Proceedings Volume 10398, 103980R (2017) https://doi.org/10.1117/12.2274623

KEYWORDS: Space telescopes, Telescopes, Mirrors, Image segmentation, Space observatories, Polarization, Image resolution, Exoplanets, Large telescopes, Segmented mirrors

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Proceedings Article | 5 September 2017 Paper

Human space flight and future major space astrophysics missions: servicing and assembly

Harley Thronson, Bradley Peterson, Matthew Greenhouse, Howard MacEwen, Rudranarayan Mukherjee, Ronald Polidan, Benjamin Reed, Nicholas Siegler, Hsiao Smith

Proceedings Volume 10398, 1039810 (2017) https://doi.org/10.1117/12.2274389

KEYWORDS: Space telescopes, Space operations, Satellites, Space observatories

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SPIE Journal Paper | 17 August 2016 Open Access

Innovative telescope architectures for future large space observatories

Ronald Polidan, James B. Breckinridge, Charles Lillie, Howard MacEwen, Martin Flannery, Dean Dailey

JATIS, Vol. 2, Issue 04, 041211, (August 2016) https://doi.org/10.1117/12.10.1117/1.JATIS.2.4.041211

KEYWORDS: Space telescopes, Telescopes, Mirrors, Observatories, Point spread functions, Phase modulation, Space observatories, Coronagraphy, Astronomical telescopes, Aerospace engineering

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Proceedings Article | 9 August 2016 Paper

In-space assembly and servicing infrastructures for the Evolvable Space Telescope (EST)

Charles Lillie, Howard MacEwen

Proceedings Volume 9904, 99041O (2016) https://doi.org/10.1117/12.2233061

KEYWORDS: Space telescopes, Satellites, Hubble Space Telescope, Telescopes, Space operations, Gemini Observatory, Control systems, Aerospace engineering, Optical instrument design, Astrophysics

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SPIE Journal Paper | 18 July 2016

Infrastructure for large space telescopes

Howard MacEwen, Charles Lillie

JATIS, Vol. 2, Issue 04, 041208, (July 2016) https://doi.org/10.1117/12.10.1117/1.JATIS.2.4.041208

KEYWORDS: Space telescopes, Space operations, Observatories, Telescopes, Astrophysics, Satellites, Optical instrument design, Mirrors, James Webb Space Telescope, Space observatories

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Proceedings Article | 22 September 2015 Open Access

An evolvable space telescope for future astronomical missions 2015 update

Ronald Polidan, James Breckinridge, Charles Lillie, Howard MacEwen, Martin Flannery, Dean Dailey, Brian Baldauf, David Makowski, Gerald Rafanelli

Proceedings Volume 9602, 960207 (2015) https://doi.org/10.1117/12.2189105

KEYWORDS: Space telescopes, Telescopes, Mirrors, Observatories, Space operations, Astrophysics, Astronomy, Polarization, Aerospace engineering, Point spread functions

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Proceedings Article | 2 August 2014 Open Access

A new paradigm for space astrophysics mission design

Jonathan Arenberg, Charles Atkinson, Jim Breckinridge, Alberto Conti, Lee Feinberg, Charles Lillie, Howard MacEwen, Ronald Polidan, Marc Postman, Gary Matthews, Eric Smith

Proceedings Volume 9143, 914315 (2014) https://doi.org/10.1117/12.2055509

KEYWORDS: Astrophysics, Space telescopes, James Webb Space Telescope, Manufacturing, Telescopes, Standards development, Mirrors, Optical instrument design, Observatories, Design for manufacturability

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Proceedings Article | 2 August 2014 Open Access

An evolvable space telescope for future astronomical missions

Ronald Polidan, James Breckinridge, Charles Lillie, Howard MacEwen, Martin Flannery, Dean Dailey

Proceedings Volume 9143, 914319 (2014) https://doi.org/10.1117/12.2057161

KEYWORDS: Space telescopes, Telescopes, James Webb Space Telescope, Observatories, Astrophysics, Astronomy, Space operations, Mirrors, Optical instrument design, Aerospace engineering

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Proceedings Article | 29 October 2013 Paper

Experimental characterization of deployable outer barrel assemblies for large space telescopes

Peter Warren, Mark Silver, Benjamin Dobson, Howard MacEwen

Proceedings Volume 8860, 886008 (2013) https://doi.org/10.1117/12.2025577

KEYWORDS: Space telescopes, Telescopes, Mirrors, Prototyping, Composites, Finite element methods, Optical fabrication, James Webb Space Telescope, Observatories, Optical instrument design

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Proceedings Article | 26 September 2013 Paper

In-space infrastructures and the Modular Assembled Space Telescope (MAST)

Howard MacEwen

Proceedings Volume 8860, 886009 (2013) https://doi.org/10.1117/12.2023373

KEYWORDS: Space telescopes, Space operations, Telescopes, Observatories, Optical instrument design, Robotics, James Webb Space Telescope, Space robots, Asteroids, Infrared telescopes

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SPIE Journal Paper | 25 September 2013 Open Access

Special Section Guest Editorial: Space Telescopes

Jacobus Oschmann, Mark Clampin, Howard MacEwen

OE, Vol. 52, Issue 09, 091801, (September 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.9.091801

KEYWORDS: Space telescopes, Aerospace engineering, James Webb Space Telescope, Astronomy, Observatories, Telescopes, Astrophysics, Planets, Exoplanets, Hubble Space Telescope

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Proceedings Article | 21 May 2013 Open Access

Large diffractive/refractive apertures for space and airborne telescopes

Howard MacEwen, James Breckinridge

Proceedings Volume 8739, 873904 (2013) https://doi.org/10.1117/12.2015457

KEYWORDS: Space telescopes, Telescopes, Diffractive optical elements, Chromatic aberrations, Optical instrument design, Optical design, Lenses, Optical components, Ray tracing, Zone plates

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SPIE Journal Paper | 25 April 2013

Modular assembled space telescope

Lee Feinberg, Jason Budinoff, Howard MacEwen, Gary Matthews, Marc Postman

OE, Vol. 52, Issue 09, 091802, (April 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.9.091802

KEYWORDS: Space telescopes, Mirrors, James Webb Space Telescope, Telescopes, Observatories, Galactic astronomy, Space mirrors, Space robots, Exoplanets, Stars

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Proceedings Article | 30 January 2004 Paper

Separation of functions as an approach to development of large space telescope mirrors

Howard MacEwen

Proceedings Volume 5166, (2004) https://doi.org/10.1117/12.508751

KEYWORDS: Mirrors, Space telescopes, Surface finishing, Telescopes, Space mirrors, Glasses, Actuators, Silicon carbide, Optics manufacturing, Tolerancing

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Showing 5 of 15 publications

SPIE Conference Volume | 16 October 2018

Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave

SPIE Conference Volume | 30 October 2017

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

SPIE Conference Volume | 1 September 2016

Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave

SPIE Conference Volume | 8 October 2015

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

SPIE Conference Volume | 4 September 2014

Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave

Showing 5 of 16 publications

Conference Committee Involvement (24)

Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave

17 July 2022 | Montréal, Québec, Canada

Space Telescopes and Instrumentation 2020: Optical, Infrared, and Millimeter Wave

14 December 2020 | Online Only, California, United States

Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave

13 December 2020 | San Diego, California, United States

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

11 August 2019 | San Diego, California, United States

Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave

10 June 2018 | Austin, Texas, United States

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

6 August 2017 | San Diego, California, United States

Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave

26 June 2016 | Edinburgh, United Kingdom

Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave Posters

26 June 2016 | Edinburgh, United Kingdom

Poster Previews: SPIE Astronomical Telescopes and Instrumentation 2016

26 June 2016 | Edinburgh, United Kingdom

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

9 August 2015 | San Diego, California, United States

Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave

22 June 2014 | Montréal, Quebec, Canada

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

25 August 2013 | San Diego, California, United States

Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave

1 July 2012 | Amsterdam, Netherlands

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

21 August 2011 | San Diego, California, United States

Space Telescopes and Instrumentation 2010: Optical, Infrared, and Millimeter Wave

27 June 2010 | San Diego, California, United States

UV/Optical/IR Space Telescopes: Innovative Technologies and Concepts IV

3 August 2009 | San Diego, California, United States

Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter Wave 2008

23 June 2008 | Marseille, France

UV/Optical/IR Space Telescopes: Innovative Technologies and Concepts III

26 August 2007 | San Diego, California, United States

Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter

24 May 2006 | Orlando, Florida , United States

UV/Optical/IR Space Telescopes: Innovative Technologies and Concepts II

31 July 2005 | San Diego, California, United States

Optical, Infrared, and Millimeter Space Telescopes

21 June 2004 | Glasgow, United Kingdom

Optical Materials and Structures Technologies

4 August 2003 | San Diego, California, United States

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

3 August 2003 | San Diego, California, United States

Highly Innovative Space Telescope Concepts

22 August 2002 | Waikoloa, Hawai'i, United States

Showing 5 of 24 Conference Committees

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