
Over ten months, Brian Quint developed and refined scheduling, analysis, and diagnostic tools across LSST repositories such as lsst-ts/ts_config_ocs and lsst-sitcom/notebooks_vandv. He engineered Python-based MTScheduler enhancements to streamline survey configuration, integrate inclinometer and stray light data, and automate test targeting, reducing operational risk and maintenance overhead. In Jupyter Notebooks, Brian delivered interactive data analysis workflows for torque, temperature, and fault diagnostics, leveraging Pandas and Bokeh for visualization and time series analysis. His work emphasized robust configuration management, code refactoring, and integration with EFD data sources, resulting in maintainable, data-driven solutions that improved system reliability and decision support.

August 2025 monthly summary for lsst-sitcom/notebooks_vandv focused on enhancing the Hexapod fault analysis notebook. Delivered a cohesive set of user-facing features to enable rapid fault diagnosis and maintenance planning, with improved data querying, visualization, and fault tracking across struts and faults.
August 2025 monthly summary for lsst-sitcom/notebooks_vandv focused on enhancing the Hexapod fault analysis notebook. Delivered a cohesive set of user-facing features to enable rapid fault diagnosis and maintenance planning, with improved data querying, visualization, and fault tracking across struts and faults.
July 2025 monthly summary: Delivered two critical capabilities across LSST TS repos that enhance operational efficiency and data quality. Key features: MTScheduler v2 for BLOCK-T393 El-LUT functionality; MTCalSys Calibration Configuration Update for Multi-Filter Scans. Major bugs fixed: none reported this month. Overall impact: improved scheduling reliability for BLOCK-T393 tasks and expanded, more accurate calibration workflows across filters u, g, i, z, y, and none, with straylight flats and refined exposure times and wavelength lists. Technologies demonstrated: MTScheduler, YAML-based calibration configuration, multi-filter calibration strategies, exposure-time control, straylight flats; cross-repo collaboration (ts_config_ocs and ts_observatory_control).
July 2025 monthly summary: Delivered two critical capabilities across LSST TS repos that enhance operational efficiency and data quality. Key features: MTScheduler v2 for BLOCK-T393 El-LUT functionality; MTCalSys Calibration Configuration Update for Multi-Filter Scans. Major bugs fixed: none reported this month. Overall impact: improved scheduling reliability for BLOCK-T393 tasks and expanded, more accurate calibration workflows across filters u, g, i, z, y, and none, with straylight flats and refined exposure times and wavelength lists. Technologies demonstrated: MTScheduler, YAML-based calibration configuration, multi-filter calibration strategies, exposure-time control, straylight flats; cross-repo collaboration (ts_config_ocs and ts_observatory_control).
June 2025 monthly summary focusing on key feature deliveries, major bug fixes, overall impact, and demonstrated technologies/skills. The work spans two repositories: lsst-sitcom/notebooks_vandv and lsst-ts/ts_standardscripts, with emphasis on delivering quick-analysis notebooks, code maintenance, and test organization to improve data analysis workflows and development hygiene.
June 2025 monthly summary focusing on key feature deliveries, major bug fixes, overall impact, and demonstrated technologies/skills. The work spans two repositories: lsst-sitcom/notebooks_vandv and lsst-ts/ts_standardscripts, with emphasis on delivering quick-analysis notebooks, code maintenance, and test organization to improve data analysis workflows and development hygiene.
May 2025 performance summary: Delivered critical scheduling features to mitigate stray light and improve focus control, introduced forecast evaluation tooling, and improved hardware status analysis tooling. These efforts reduce operational risk, enhance decision support, and strengthen maintainability across the TS configuration, SITCOM notebooks, and summit utilities.
May 2025 performance summary: Delivered critical scheduling features to mitigate stray light and improve focus control, introduced forecast evaluation tooling, and improved hardware status analysis tooling. These efforts reduce operational risk, enhance decision support, and strengthen maintainability across the TS configuration, SITCOM notebooks, and summit utilities.
In April 2025, delivered targeted features across notebooks_vandv and ts_config_ocs, focused on improving telemetry analysis, stray light handling, and scheduling integration to enhance system responsiveness and operational efficiency. Key work included a new MTDome Telemetry Latency Evaluation Notebook for querying and visualizing EFD time-series data, the BLOCK-T428 stray light handling configuration for MTScheduler with a reusable Python script and YAML configuration, and the BLOCK-T465 scheduling integration with an OCS queue linkage. These efforts strengthen data-driven decision making, reduce manual configuration overhead, and enable smoother automated scheduling workflows.
In April 2025, delivered targeted features across notebooks_vandv and ts_config_ocs, focused on improving telemetry analysis, stray light handling, and scheduling integration to enhance system responsiveness and operational efficiency. Key work included a new MTDome Telemetry Latency Evaluation Notebook for querying and visualizing EFD time-series data, the BLOCK-T428 stray light handling configuration for MTScheduler with a reusable Python script and YAML configuration, and the BLOCK-T465 scheduling integration with an OCS queue linkage. These efforts strengthen data-driven decision making, reduce manual configuration overhead, and enable smoother automated scheduling workflows.
March 2025: Delivered and refined notebooks in lsst-sitcom/notebooks_vandv to accelerate multi-dataset torque analysis and hexapod current analysis, driving faster, more reliable experimental insights. Implemented a DataSet-based workflow for CSC EFD data and added TDMS-to-CSV ingestion for EUI data, with robust time-series visualizations (torque, position, angle) and time-window analyses across datasets. Refactored Hexapod Current Analysis notebook to focus on camera hexapod current, removing rotator torque analysis, improving plotting aesthetics, and updating helper functions for concise data processing. These changes enabled cross-file data aggregation, streamlined workflows, and clear business value in decision-making during campaign analyses.
March 2025: Delivered and refined notebooks in lsst-sitcom/notebooks_vandv to accelerate multi-dataset torque analysis and hexapod current analysis, driving faster, more reliable experimental insights. Implemented a DataSet-based workflow for CSC EFD data and added TDMS-to-CSV ingestion for EUI data, with robust time-series visualizations (torque, position, angle) and time-window analyses across datasets. Refactored Hexapod Current Analysis notebook to focus on camera hexapod current, removing rotator torque analysis, improving plotting aesthetics, and updating helper functions for concise data processing. These changes enabled cross-file data aggregation, streamlined workflows, and clear business value in decision-making during campaign analyses.
February 2025 monthly summary for lsst-ts/ts_config_ocs: Delivered MTScheduler BLOCK-T358 feature focusing on Filter Configuration Cleanup and mtmount Handling. The work simplifies survey filtering by removing filter-related basis functions from greedy survey generation, explicitly passes filters, and removes filter-related configuration from v7/_summit.yaml. It also updates the configuration to ignore 'mtmount' per BLOCK-T358. These changes reduce configuration complexity, lower maintenance burden, and mitigate misconfiguration risks in production deployments. The changes were implemented via three commits, improving reliability and planning speed for scheduling workflows.
February 2025 monthly summary for lsst-ts/ts_config_ocs: Delivered MTScheduler BLOCK-T358 feature focusing on Filter Configuration Cleanup and mtmount Handling. The work simplifies survey filtering by removing filter-related basis functions from greedy survey generation, explicitly passes filters, and removes filter-related configuration from v7/_summit.yaml. It also updates the configuration to ignore 'mtmount' per BLOCK-T358. These changes reduce configuration complexity, lower maintenance burden, and mitigate misconfiguration risks in production deployments. The changes were implemented via three commits, improving reliability and planning speed for scheduling workflows.
January 2025 performance summary for lsst-sitcom/notebooks_vandv: Delivered an initial Camera Cable Wrap (CCW) Torque Analysis Notebook for Slew Event Analysis, enabling historical analysis by querying and visualizing data from the Event Data Facility (EFD). Supports single-slew analysis and campaign analysis over a date range. Subsequent commits expanded capabilities with maximum absolute torque metrics and enhanced visualizations, and code quality improvements were applied via linting. This work provides data-driven insights for instrument commissioning, risk assessment, and operation planning by monitoring CCW torque events across slews.
January 2025 performance summary for lsst-sitcom/notebooks_vandv: Delivered an initial Camera Cable Wrap (CCW) Torque Analysis Notebook for Slew Event Analysis, enabling historical analysis by querying and visualizing data from the Event Data Facility (EFD). Supports single-slew analysis and campaign analysis over a date range. Subsequent commits expanded capabilities with maximum absolute torque metrics and enhanced visualizations, and code quality improvements were applied via linting. This work provides data-driven insights for instrument commissioning, risk assessment, and operation planning by monitoring CCW torque events across slews.
Month: 2024-12 — Focused delivery on SPA documentation and repository organization for lsst-sitcom/sitcomtn-149. No critical bugs identified this month; efforts centered on improving clarity, test gating, and project maintainability to enable safer performance scaling and easier collaboration.
Month: 2024-12 — Focused delivery on SPA documentation and repository organization for lsst-sitcom/sitcomtn-149. No critical bugs identified this month; efforts centered on improving clarity, test gating, and project maintainability to enable safer performance scaling and easier collaboration.
Concise monthly summary for 2024-11 highlighting key features delivered, major bugs fixed, overall impact, and technologies demonstrated across two repositories (lsst-ts/ts_config_ocs and lsst-sitcom/sitcomtn-149). Key achievements (top 5): 1) MTScheduler: BLOCK-T231 and BLOCK-T240 scheduling enhancements, enabling more flexible and reliable task sequencing (commits: 076852aded8237e98dd9fbb0797f66d0038f4cf5; 42ab1bcb0b736bc0c4b67427e3505ebea63173c4). 2) MTScheduler: Inclinometer data source integration (BLOCK-T284) to support m2 inclinometer processing and monitoring (commit: b898e8b4af38a1b08b006ba47eb6af20af85278b). 3) MTScheduler: Dynamic test configurations for BLOCK-T282, BLOCK-T293, BLOCK-T294 to enable targeted testing across elevations (commits: b7dc815b5624cd76ab2a86b25a49de334156a3f2; daa090938d00ff2d5019ba9584ee532f168703c2; a64c2a1661c84dff664d6914d13d8b2d0e0154b4). 4) MTScheduler: Configuration cleanup for BLOCK-T284 removing unused scripts and components to streamline operation (commits: ce68f8fd7831b192f095760443c2fd684061254b; 6f74a0f7bf45c3e05cc1c8784eb6c0fafb37bd5d). 5) MTScheduler: Stability fixes including rot_sky handling (BLOCK-320), mtmount/mtm2 state transition coordination, and diagonal slews corrections for BLOCK-T293/294 (commits: df9bfc4b8fcef74c2f498deca896f92bc4fbdd2c; 8cc6c3023de646fa904a69a6080276e0bdadaeda; 04726544a93c7df3e0f7db7cc8da0a9296381159). In addition, SPA documentation enhancements were delivered for lsst-sitcom/sitcomtn-149 to expand performance analysis visuals (various commits), including new figures for gateway tests, long/short slews, M2 closed-loop breakout plots, TMA brake tests, and a Night Performance subsection. Overall impact and accomplishments: - Business value: improved scheduling flexibility, data processing reliability, and targeted testing capabilities; reduced maintenance overhead due to configuration cleanup; enhanced observability for night operations. - Technical achievements: multi-repo integration work, robust state-transition handling, precise motion corrections, and expansion of performance analytics documentation. Technologies/skills demonstrated: - Python-based MTScheduler enhancements and integration patterns - Configuration management and script/component cleanup - Test configuration automation and elevation-based targeting - Debugging, rollback strategies, and race-condition avoidance in distributed systems - Data visualization and documentation asset creation for performance analysis
Concise monthly summary for 2024-11 highlighting key features delivered, major bugs fixed, overall impact, and technologies demonstrated across two repositories (lsst-ts/ts_config_ocs and lsst-sitcom/sitcomtn-149). Key achievements (top 5): 1) MTScheduler: BLOCK-T231 and BLOCK-T240 scheduling enhancements, enabling more flexible and reliable task sequencing (commits: 076852aded8237e98dd9fbb0797f66d0038f4cf5; 42ab1bcb0b736bc0c4b67427e3505ebea63173c4). 2) MTScheduler: Inclinometer data source integration (BLOCK-T284) to support m2 inclinometer processing and monitoring (commit: b898e8b4af38a1b08b006ba47eb6af20af85278b). 3) MTScheduler: Dynamic test configurations for BLOCK-T282, BLOCK-T293, BLOCK-T294 to enable targeted testing across elevations (commits: b7dc815b5624cd76ab2a86b25a49de334156a3f2; daa090938d00ff2d5019ba9584ee532f168703c2; a64c2a1661c84dff664d6914d13d8b2d0e0154b4). 4) MTScheduler: Configuration cleanup for BLOCK-T284 removing unused scripts and components to streamline operation (commits: ce68f8fd7831b192f095760443c2fd684061254b; 6f74a0f7bf45c3e05cc1c8784eb6c0fafb37bd5d). 5) MTScheduler: Stability fixes including rot_sky handling (BLOCK-320), mtmount/mtm2 state transition coordination, and diagonal slews corrections for BLOCK-T293/294 (commits: df9bfc4b8fcef74c2f498deca896f92bc4fbdd2c; 8cc6c3023de646fa904a69a6080276e0bdadaeda; 04726544a93c7df3e0f7db7cc8da0a9296381159). In addition, SPA documentation enhancements were delivered for lsst-sitcom/sitcomtn-149 to expand performance analysis visuals (various commits), including new figures for gateway tests, long/short slews, M2 closed-loop breakout plots, TMA brake tests, and a Night Performance subsection. Overall impact and accomplishments: - Business value: improved scheduling flexibility, data processing reliability, and targeted testing capabilities; reduced maintenance overhead due to configuration cleanup; enhanced observability for night operations. - Technical achievements: multi-repo integration work, robust state-transition handling, precise motion corrections, and expansion of performance analytics documentation. Technologies/skills demonstrated: - Python-based MTScheduler enhancements and integration patterns - Configuration management and script/component cleanup - Test configuration automation and elevation-based targeting - Debugging, rollback strategies, and race-condition avoidance in distributed systems - Data visualization and documentation asset creation for performance analysis
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