lasp/basilisk
Jul 2025 – Nov 2025
5 Months active
Languages Used
C++PythonrstsvgtexEigenLaTeXRST
Technical Skills
C++C++ DevelopmentCode FormattingDocumentationError HandlingNumPy
Julian Hammerl
PROFILE
Julian Hammerl
Worked on the lasp/basilisk repository, delivering a broad modernization of aerospace simulation software over five months. Developed and refactored core modules for spacecraft attitude control, thruster torque mapping, and sensor modeling, emphasizing modular C++ and Python design. Migrated legacy C arrays to Eigen data structures, introduced adapter-based architectures, and enhanced APIs with accessor methods for safer, clearer integration. Improved reliability by replacing logging and asserts with exception-based error handling, and strengthened maintainability through comprehensive unit testing and documentation migration to reStructuredText. These efforts resulted in more robust, extensible simulation workflows and streamlined integration for downstream aerospace engineering applications.
Overall Statistics
Feature vs Bugs
86%Features
Repository Contributions
157Total
Bugs
14
Commits
157
Features
83
Lines of code
138,337
Activity Months5
Your Network
10 peopleShared Repositories
10
Bushra AldhanhaniMember
Cody AllardMember
Chun-Wei KongMember
Leah KinerMember
patrick kenneallyMember
patrick kenneallyMember
Safa Al HosaniMember
Thibaud TeilMember
tteilMember
Work History
November 2025
3 Commits • 1 Features
Nov 1, 2025Concise monthly summary for 2025-11 focusing on key accomplishments and business impact. Implemented a spacecraft thruster torque control mapping module in lasp/basilisk and updated unit tests to improve robustness of torque control.
3 Commits • 1 Features
Nov 1, 2025Concise monthly summary for 2025-11 focusing on key accomplishments and business impact. Implemented a spacecraft thruster torque control mapping module in lasp/basilisk and updated unit tests to improve robustness of torque control.
November 2025
October 2025
34 Commits • 22 Features
Oct 1, 2025Monthly summary for 2025-10 (lasp/basilisk). Delivered a set of architectural improvements, robustness enhancements, and observable state access to support deeper performance analysis and reliability in production.
October 2025
34 Commits • 22 Features
Oct 1, 2025Monthly summary for 2025-10 (lasp/basilisk). Delivered a set of architectural improvements, robustness enhancements, and observable state access to support deeper performance analysis and reliability in production.
September 2025
80 Commits • 37 Features
Sep 1, 2025Sept 2025 (lasp/basilisk): Delivered a comprehensive modernization of data structures, API, testing, and robustness. Key features include migrating core data types to Eigen, expanding the Accessor API, and converting subsystems to adapter interfaces for improved interoperability. We strengthened reliability through exception-based error handling and logging, refined Protobuffer messaging, and modernized documentation and tests to accelerate development velocity and downstream integration. These changes reduce defect risk, improve performance, and enable clearer, safer APIs for simulation workflows and external tooling.
80 Commits • 37 Features
Sep 1, 2025Sept 2025 (lasp/basilisk): Delivered a comprehensive modernization of data structures, API, testing, and robustness. Key features include migrating core data types to Eigen, expanding the Accessor API, and converting subsystems to adapter interfaces for improved interoperability. We strengthened reliability through exception-based error handling and logging, refined Protobuffer messaging, and modernized documentation and tests to accelerate development velocity and downstream integration. These changes reduce defect risk, improve performance, and enable clearer, safer APIs for simulation workflows and external tooling.
September 2025
August 2025
33 Commits • 21 Features
Aug 1, 2025August 2025 monthly summary for lasp/basilisk highlighting architectural modernization, protocol evolution, and reliability enhancements that underpin future scalability and integration. This period focused on delivering business value through cleaner interfaces, robust error handling, and richer data models, while maintaining high code quality via documentation and tests.
August 2025
33 Commits • 21 Features
Aug 1, 2025August 2025 monthly summary for lasp/basilisk highlighting architectural modernization, protocol evolution, and reliability enhancements that underpin future scalability and integration. This period focused on delivering business value through cleaner interfaces, robust error handling, and richer data models, while maintaining high code quality via documentation and tests.
July 2025
7 Commits • 2 Features
Jul 1, 2025July 2025 performance summary for lasp/basilisk: Delivered a significant NavAggregate refactor, improved error handling, and enhanced quality with modernized tests and docs. Architectural refactor restructured NavAggregate into NavAggregateAlgorithm with API accessors, exposing a cleaner and more modular interface and improving readability and future extensibility. Robustness improvements replaced legacy BSK logging with std::invalid_argument exceptions to fail fast on invalid configurations or message states; tests updated to reflect the new behavior, reducing runtime surprises in production. Quality and documentation updates modernized tests to use numpy.testing.assert_allclose, standardized formatting, and migrated documentation to reStructuredText for navAggregate, improving cross-language consistency and developer onboarding. These changes collectively improve maintainability, reliability, and integration readiness, enabling faster, safer feature delivery and clearer API surfaces. Technologies demonstrated: C++ modular design, exception-based error handling, Python-based test tooling (numpy.testing), pre-commit formatting, and documentation migration to reStructuredText.
7 Commits • 2 Features
Jul 1, 2025July 2025 performance summary for lasp/basilisk: Delivered a significant NavAggregate refactor, improved error handling, and enhanced quality with modernized tests and docs. Architectural refactor restructured NavAggregate into NavAggregateAlgorithm with API accessors, exposing a cleaner and more modular interface and improving readability and future extensibility. Robustness improvements replaced legacy BSK logging with std::invalid_argument exceptions to fail fast on invalid configurations or message states; tests updated to reflect the new behavior, reducing runtime surprises in production. Quality and documentation updates modernized tests to use numpy.testing.assert_allclose, standardized formatting, and migrated documentation to reStructuredText for navAggregate, improving cross-language consistency and developer onboarding. These changes collectively improve maintainability, reliability, and integration readiness, enabling faster, safer feature delivery and clearer API surfaces. Technologies demonstrated: C++ modular design, exception-based error handling, Python-based test tooling (numpy.testing), pre-commit formatting, and documentation migration to reStructuredText.
July 2025
Activity
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Quality Metrics
Correctness94.8%
Maintainability94.8%
Architecture93.4%
Performance90.2%
AI Usage20.2%
Skills & Technologies
Programming Languages
CC++EigenHaskellLaTeXPythonRSTSVGTeXXML
Technical Skills
API DesignAerospace EngineeringAerospace SoftwareAlgorithm DevelopmentAsset ManagementAttitude ControlAttitude Control SystemsAttitude DynamicsAttitude GuidanceC++C++ DevelopmentC++ developmentCamera SimulationCode ClarityCode Cleanup
Repositories Contributed To
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