We drive rigorous technical integration across the full lifecycle of cutting-edge astrophysical instruments — from concept definition through testing and deployment. Our mission is to ensure that complex subsystems coalesce seamlessly to meet the demanding scientific and operational objectives pursued by the CfA.
We ensure systems are architected, developed, and delivered to meet user needs — balancing technical rigor and agile adaptation, and integrating engineering disciplines through robust processes and systems thinking.
We use processes and tools that adapt to project size and complexity, meeting the differing needs of the CfA project portfolio.
We are the Systems Engineering Group, part of the Central Engineering Division of SAO.
We translate science objectives into clear, verifiable engineering requirements and then manage them through the project lifecycle.
We define and document instrument system architectures and interfaces to ensure seamless integration of complex subsystems.
We plan thorough verification activities—including environmental testing and performance validation—to ensure instruments meet mission demands.
We conduct detailed trade studies to optimize instrument design choices and balance performance, cost, and schedule.
We identify, analyze, and mitigate technical risks while proactively managing opportunities to maximize mission success.
We develop and refine systems engineering processes aligned with industry standards and best practices.
We lead and facilitate rigorous technical reviews to ensure design maturity, requirements compliance, and risk mitigation throughout project milestones.
We leverage Model-Based Systems Engineering (MBSE) approaches using tools such as Cameo Systems Modeler to create comprehensive, up-to-date system models that improve communication, traceability, and design V&V throughout the project lifecycle.
We provide systems engineering expertise for proposal teams, including technical approach, schedule, and risk planning.
Embedded within interdisciplinary project teams, the Systems Engineering Group bridges scientific objectives and engineering execution, coordinating requirements, interfaces, and verification activities to deliver robust ground, high-altitude, and space instrumentation.
Jama Connect
Cameo Systems Modeler & Teamwork Cloud
Templates for Requirements, Risk Management, Trade Studies, and more!
Model-based Systems Engineering (MBSE)
Requirements Management
Modeling & Trade Studies
Product Development
Ed Hertz
Group Lead
Ryan Chaves
Systems + Software
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INCOSE member since 2016
MBSE Evangelist
Garret Fitzpatrick
Systems Engineer
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ngEHT Project Engineer
In 2025, the Systems Engineering Group completed its first structured competency assessment aligned with international standards and NASA/INCOSE frameworks. The assessment highlighted strong cohesion in integration, interface definition, V&V, and risk management — while identifying targeted opportunities for growth in MBSE adoption, project monitoring, and decision management.
Building on these findings, we are advancing our MBSE capabilities in line with ISO/IEC/IEEE 15288, the NASA Systems Engineering Handbook, and the INCOSE Systems Engineering Vision. Our long-term initiatives include:
Expanding model-based requirements traceability from science goals to test procedures.
Increasing use of parametric modeling to assess performance trade-offs early in design.
Standardizing architecture modeling conventions across projects for improved interoperability.
Integrating MBSE workflows into our proposal development process to ensure early alignment between science objectives and system design.
Enhancing team training in Cameo Systems Modeler and related collaborative modeling tools.
We are using the results to shape our internal training, process refinement, and mentorship programs to better support CfA missions. The group conducts this assessment annually.