Mr. James D. Moore Profile

James D. Moore

at NeXolve

SPIE Involvement:

Author

SPIE Journal Paper | 22 August 2024 Open Access

SALTUS probe class space mission: observatory architecture and mission design

Leon Harding, Jonathan Arenberg, Benjamin Donovan, Dave Oberg, Ryan Goold, Bob Chang, Christopher Walker, Dana Turse, Jim Moore, Jim Pearson, John Kidd, Zach Lung, Dave Lung

JATIS, Vol. 10, Issue 04, 042303, (August 2024) https://doi.org/10.1117/12.10.1117/1.JATIS.10.4.042303

KEYWORDS: Space operations, Observatories, Design, Data storage, Equipment, Cryogenics, James Webb Space Telescope, Reflectors, Control systems, Sun

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We describe the space observatory architecture and mission design of the Single Aperture Large Telescope for Universe Studies (SALTUS) mission, a National Aeronautics and Space Administration (NASA) Astrophysics Probe Explorer concept. SALTUS will address key far-infrared science using a 14-m diameter <45 K primary reflector (M1) and will provide unprecedented levels of spectral sensitivity for planet, solar system, and galactic evolution studies and cosmic origins. Drawing from Northrop Grumman’s extensive NASA mission heritage, the observatory flight system is based on the LEOStar-3 spacecraft platform to carry the SALTUS Payload. The Payload is comprised of the inflation control system, sunshield module (SM), cold corrector module (CCM), warm instrument electronics module, and primary reflector module (PRM). The 14-m M1 is an off-axis inflatable membrane radiatively cooled by a two-layer sunshield (∼1000 m2 per layer). The CCM corrects for residual aberration from M1 and delivers a focused beam to two instruments—the High-Resolution Receiver (HiRX) and SAFARI-Lite. The CCM and PRM reside atop a truss-based composite deck that also provides a platform for the attitude control system. The SALTUS 5-year mission lifetime is driven by a two-consumable architecture: the propellant system and the inflation control system. The core interface module (CIM), a multi-faceted composite truss structure, provides a load path with high stiffness, mechanical attachment, and thermal separation between the Payload and spacecraft. The SM attaches outside the CIM with its aft end integrating directly to the bus. The spacecraft maintains an attitude off M1’s boresight with respect to the Sun line to facilitate the <45 K thermal environment. SALTUS will reside in a Sun–Earth halo L2 orbit with a maximum Earth slant range of 1.8 million km, thereby reducing orbit transfer delta-v. The instantaneous field of regard provides two continuous 20 deg viewing zones around the ecliptic poles, resulting in full sky coverage in 6 months.

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Proceedings Article | 19 August 2005 Paper

Design and testing of a one-meter membrane mirror with active boundary control

James Moore, Brian Patrick, Surya Chodimella, Dan Marker, Brett deBlonk

Proceedings Volume 5899, 58990Z (2005) https://doi.org/10.1117/12.618547

KEYWORDS: Mirrors, Actuators, Electrodes, Monochromatic aberrations, Control systems, Reflectivity, Polymers, Mirror mounts, Finite element methods, Aluminum

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Proceedings Article | 18 August 2005 Paper

Design, fabrication, and validation of an ultra-lightweight membrane mirror

Surya Chodimella, James Moore, Brian Patrick, Brett deBlonk, Dan Marker

Proceedings Volume 5894, 589416 (2005) https://doi.org/10.1117/12.619237

KEYWORDS: Coating, Actuators, Mirrors, Monochromatic aberrations, Electrodes, Aluminum, Control systems, Power supplies, Data modeling, Spherical lenses

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Proceedings Article | 16 May 2005 Paper

Advanced piezoelectric single crystal based actuators

Xiaoning Jiang, Paul Rehrig, Wesley Hackenberger, Edward Smith, Shuxiang Dong, Dwight Viehland, Jim Moore, Brian Patrick

Proceedings Volume 5761, (2005) https://doi.org/10.1117/12.600019

KEYWORDS: Actuators, Crystals, Cryogenics, Deformable mirrors, Crystallography, Electrodes, Ceramics, Niobium, Metals, Wavefronts

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Proceedings Article | 12 October 2004 Paper

Development of a one meter membrane mirror with active boundary control

James Moore, Brian Patrick, Surya Chodimella, Dan Marker, Arup Maji

Proceedings Volume 5553, (2004) https://doi.org/10.1117/12.558330

KEYWORDS: Mirrors, Actuators, Monochromatic aberrations, Error analysis, Optics manufacturing, Spherical lenses, Imaging systems, Zernike polynomials, Wavefronts, Control systems

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Proceedings Article | 12 October 2004 Paper

Large lightweight optical quality windows and filters

Dan Marker, Ethan Holt, Brian Patrick, David Sheikh, James Moore, James Rotge, James Wilkes

Proceedings Volume 5553, (2004) https://doi.org/10.1117/12.562141

KEYWORDS: Optics manufacturing, Optical filters, Dielectrics, Optical coatings, Mirrors, Surface roughness, Polymers, Dielectric filters, Absorption, Refraction

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Proceedings Article | 30 January 2004 Paper

Design, test, and evaluation of an electrostatically figured membrane mirror

James Moore, Brian Patrick, Paul Gierow, Edward Troy

Proceedings Volume 5166, (2004) https://doi.org/10.1117/12.509172

KEYWORDS: Mirrors, Electrodes, Actuators, Optics manufacturing, Power supplies, Aerospace engineering, Control systems, Cameras, Space mirrors, Surface roughness

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Proceedings Article | 12 December 2003 Paper

Polymer material and casting process development for reduced manufacturing cost of spaceborne optics

Brian Patrick, James Moore, Dan Marker, James Rotge

Proceedings Volume 5179, (2003) https://doi.org/10.1117/12.503852

KEYWORDS: Surface finishing, Polymers, Mirrors, Surface roughness, Polishing, Silicon, Optics manufacturing, Zerodur, Semiconducting wafers, Lightweight mirrors

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Proceedings Article | 18 December 2002 Paper

Parametric assessment of material properties, boundary conditions, and environmental effects on the performance of membrane optical systems

James Moore, Paul Gierow, Brian Patrick, Dan Marker

Proceedings Volume 4849, (2002) https://doi.org/10.1117/12.460719

KEYWORDS: Mirrors, Optics manufacturing, Control systems, Electrodes, Polymers, Surface finishing, Tolerancing, Surface roughness, Monochromatic aberrations, Optical components

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Proceedings Article | 27 December 2001 Paper

Manufacturing and evaluation of membrane optical elements for ultralightweight optics

Brian Patrick, James Moore, Whitt Brantley, Thomas Kester, David Lehner

Proceedings Volume 4451, (2001) https://doi.org/10.1117/12.453606

KEYWORDS: Optics manufacturing, Mirrors, Manufacturing, Surface roughness, Optical components, Thin films, Glasses, Diamond, Ronchi rulings, Imaging systems

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Proceedings Article | 5 November 2001 Paper

Software for integrated optical design analysis

James Moore, Edward Troy, Brian Patrick, Michael Stallcup

Proceedings Volume 4444, (2001) https://doi.org/10.1117/12.447320

KEYWORDS: Data modeling, Software development, Optical design, Thermal modeling, Integrated modeling, Code v, Thermography, Systems modeling, Integrated optics, Visualization

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