July 2026: Delivered a significant capability expansion for Laser Fiberspec 3 in lsst-ts/ts_observatory_control by extending the wavelength scanning range to 800-1126 nm and applying a bugfix to enable the scan. This work unlocks new applications, improves data collection readiness for upcoming campaigns, and demonstrates strong instrument control and software maintenance capabilities.

June 2026 performance summary: Across lsst-ts/ts_observatory_control and lsst-ts/ts_externalscripts, delivered calibration and imaging workflow enhancements, expanded testing coverage for fiber spectrograph, and reliability improvements. Key deliverables include a 5nm-step calibration across the full wavelength range in mtcalsys for scan_none_long, MTCS-integrated LSSTCam imaging workflow with configurable imaging sequences, and additional fiber spectrograph test sequences. Timeout handling was strengthened for long-running commands and exposures, and projecter setup was modularized to improve reuse. Result: higher data quality, reduced misconfigurations, more reliable telescope operations, and streamlined CI/test pipelines.

2026-05 monthly summary for the observatory control stack, spanning ts_observatory_control and ts_externalscripts. Delivered calibrated, robust automation enhancements to laser and spectrograph workflows, increasing observational accuracy and system reliability. Implementations emphasize business value: faster calibration cycles, repeatable results, and reduced downtime.

April 2026 (2026-04): Delivered robust calibration improvements for lsst-ts/ts_observatory_control, focusing on correctness of calibration parameters for CBP and Mono, expanded calibration sequences, and flexible exposure settings. This work enhances data quality, reduces calibration downtime, and improves operational diagnostics across the observatory control workflow.

March 2026 monthly summary for lsst-ts/ts_externalscripts: Delivered Calibration Flats Workflow Enhancements, introducing a configurable electrometer usage option in setup_calsys_flats tests and streamlining exposure metadata by removing the use_camera field from take_calsys_flats_lsstcam metadata. This work improves test configurability, metadata consistency, and downstream data quality, enabling more reliable calibration workflows and faster data processing.

February 2026 (2026-02) monthly summary for lsst-ts/ts_observatory_control. Focused on improving the exposure settings workflow through a targeted configuration change and maintained robust version-control discipline.

January 2026 monthly summary focused on delivering reliable measurement capabilities, efficient calibration workflows, and hardware integration improvements across the ts_observatory_control, ts_externalscripts, and ts_config_ocs repositories. The work emphasizes business value through improved data quality, operational throughput, and hardware adaptability.

October 2025: Implemented standardization and reliability enhancements in calibration workflows across the ts_observatory_control and ts_externalscripts repositories. Delivered features to enable fiber spectrographs by default in mtcalsys calibration sequences, upgraded LED calibration hardware and documentation (M1050L4 and y-band changes), and integrated laser focus stage control with wavelength-based focus calculations and improved logging/tests; addressed critical issues by disabling the flatfield electrometer by default and correcting the LED focus axis. Also updated calibration setup ignore lists to stop excluding essential components and added release notes. These changes reduce calibration setup time, improve data quality, and enhance maintainability across instruments.

September 2025 — Refactor to standardize calibration script naming in lsst-ts/ts_externalscripts. The work renamed calibration scripts and related classes from whitelight_flats to calsys_flats, updated imports, class names, and documentation across multiple files and tests. Implemented via a single commit; no functional changes beyond naming, improving clarity, maintainability, and onboarding for contributors and downstream consumers of the calibration system.

August 2025 monthly summary: Delivered key enhancements across ts_config_ocs and ts_observatory_control, including UI polish on the Calibration Screen, state management for summary display, automation scripts for flat data setup and safe shutdown, and comprehensive MTCalSys calibration parameter tuning. These changes reduce manual configuration time, improve calibration reliability and data quality, and standardize critical operational workflows. No critical bugs were reported this month; emphasis was placed on reliability, automation, and workflow optimization.

July 2025 monthly summary focusing on key accomplishments and business impact. The period delivered foundational automation and testing enhancements across two repositories, enabling safer, faster observations and improved data quality. Key features included enabling the flat-field electrometer by default, expanded observatory testing configurations (laser, PTC calibration, and LED tests), and automated LED calibration with electrometer/LED sensitivity workflows. M2 baffle CBP configuration adjustments were implemented to support product features and operational requirements. These changes reduce manual operator steps, improve calibration reproducibility, and strengthen end-to-end validation prior to on-sky runs. Demonstrated expertise in configuration-driven automation, scripting, and cross-repo collaboration to deliver tangible performance improvements.

June 2025 performance summary: Delivered critical features to automate and stabilize LSST telescope calibration workflows, improved data quality, and enhanced observability, while fixing key reliability issues across external scripts, observatory control, and config management. Key outcomes include more reliable flat-fielding for LSSTCam, flexible calibration options, robust test isolation, and improved data persistence and scripting capabilities that streamline operations and reduce manual toil.

May 2025 monthly summary focusing on reliability, automation, and calibration improvements across the LSST TS repositories. Delivered features and fixes that enhance operational stability, data quality, and daily calibration throughput across observatory control, external scripts, and configuration tooling.

April 2025: Delivered substantial reliability improvements and feature enhancements across the observatory control and external scripting domains, focusing on multi-axis control, calibration readiness, and enhanced status/initialization paths. Completed critical bug fixes and test alignment to support upcoming hardware and experiments, boosting system stability, data quality, and team velocity.

March 2025: Delivered targeted observatory control and automation enhancements focused on safe hardware operations, hardware integration, and production reliability. Key features include safe parking/homing for the Observatory projector and linear stages; a calibration projector safe parking script with tests and documentation; and integration/configuration support for the Keithley 6517b electrometer across YAML configurations. Also resolved a misconfigured S3 endpoint and stabilized production deployment with a production HTTPS image service endpoint and corrected location context.

February 2025 monthly summary focusing on calibration automation, observability, and test coverage across the calibration stack. Implemented end-to-end white light calibration support and enhanced hardware visibility, with test configurations for repeatable validation and improved telemetry.

December 2024 monthly summary for lsst-ts/ts_standardscripts: Delivered the Power Off Tunable Laser Script, integrated into calibration module initialization, with accompanying documentation and a comprehensive unit test suite. The feature mirrors the established power-on workflow to ensure consistency and reliability across calibration workflows, improving automation, safety, and uptime during operations.

Month 2024-11: Focused on advancing laser calibration capabilities in lsst-ts/ts_observatory_control, delivering a more precise and configurable laser setup for calibration workflows. No critical bugs reported in this period; the work emphasizes reliability, repeatability, and faster calibration cycles. The changes lay groundwork for robust laser configuration management and easier upkeep of calibration procedures.

In Oct 2024, delivered the PowerOffTunableLaser automation script for LSST calibration in lsst-ts/ts_standardscripts. The script provides configuration, metadata, and operational logic to safely stop laser propagation, with full integration to LSST Telescope and Site Systems for proper state management. Tests were updated to verify laser state handling and script path accuracy, supporting safer, more reliable calibration workflows. Key commits include 5abcf94fab63a65ca1155d50027586dda227bd47 (initial commit of power off scripts), 47b0fb8dec20c9177672ca1892b6cfe38a6e5be9 (changes to test), and 9031962c2b6ee22196de3944c3c66951c4612af8 (adding script). These changes reduce manual intervention, improve safety, and streamline calibration operations.

2024-08 monthly summary: Delivered a new SalScript enabling power-on of the Tunable Laser and integration with MTCalsys, establishing repeatable functional testing and configuration workflows. Implemented parameter configuration and propagation start controls, aligning instrument control with existing systems. Prepared foundation for automated testing and faster validation cycles.