December 2025 monthly summary for the sotodlib feature development focused on map-making enhancements.

November 2025: Delivered notable enhancements to simonsobs/sotodlib focused on coadd tooling, data integrity, and QA metrics. Key outcomes include a new coadd mapmaker script with mapping, output generation, and plotting capabilities plus a clarified logging system; data integrity improvements via an obslist check and inclusion of obslist in SQL to prevent overwrites; a QA metrics logging overhaul with improved tagging and query adjustments. These changes automate coaddition workflows, reduce data risk, and improve QA visibility, demonstrating strong Python scripting, CLI tooling, logging, SQL, plotting, and documentation skills.

October 2025: Focused on strengthening data preprocessing robustness and operational reliability in simonsobs/sotodlib. Delivered two feature enhancements with concrete business value: (1) SSOFootprint source name sanitization to handle dots in names via alphanumeric regex, preventing ingestion errors in the data pipeline. (2) Site pipeline alerting for failed book processing, introducing a send_alert utility and Slack webhook integration to notify on binding failures, with dependency updates to support Slack notifications. These changes reduce downtime and improve observability. Major bugs addressed: edge-case handling for dot-containing source names to prevent downstream failures; improved failure notifications to accelerate remediation. Overall impact: higher data integrity for astronomical observations and faster incident response. Technologies/skills demonstrated: Python regex-based sanitization, alerting workflows, Slack integrations, reusable utility development, and dependency management.

2025-09 monthly summary for simonsobs/sotodlib: Delivered a set of robustness and quality enhancements, including a new Source Footprint Visualization for quality reporting and a case-insensitive source handling in preprocessing and reporting, along with a fix to prevent crashes when coverage data is missing. Key deliverables: - Source Footprint Visualization for Quality Reporting: Adds detailed plots and a table to visualize source footprints across wafers and targets, enhancing quality reporting. Refactors data loading and report generation to support the new visualizations. Commit: a6e49b30d6577b57b4fafe2a632a0bfcd8834530 (add source footprint plots #1356). - Case-Insensitive Source Matching in Preprocessing and Reporting: Implements case-insensitive handling for source lists in preprocess_obs and report_data to improve robustness and ensure accurate reporting regardless of source name casing. Commit: cb4159b65d6df34d1b4e7cc09c0180c1949f94e4 (Add case-insensitive handling for source list in preprocess_obs #1395). - Guard against Empty Coverage Data to Prevent Crashes: Fixes a crash when the 'coverage' field is an empty string by skipping processing for incomplete coverage data, ensuring reports can be generated even with missing coverage information. Commit: 741515c8a73008ef60b70cf325e6dde6d78b8dc9 (catch empty string in source coverage #1388). Overall impact and accomplishments: - Improved reliability and uptime of automated reporting by hardening data handling and edge cases. - Increased maintainability through refactors enabling new visualizations. - Enhanced data integrity and reporting accuracy across wafers and targets. Technologies/skills demonstrated: - Python data processing and plotting integration - Defensive programming against missing/invalid data - Robust preprocessing and reporting pipelines with case-insensitive logic - Refactoring for extensibility and performance Business value: - More reliable, actionable quality reports enabling faster QA decisions - Reduced manual intervention due to fewer crashes and better data handling - Scalable groundwork for additional visualizations and metrics in future releases

In August 2025, delivered a robustness enhancement for the SRS CG635 data parsing in simonsobs/socs. Addressed a ValueError path when parsing semicolon-delimited data by introducing a safe fallback: if the data format is not as expected, the agent now fetches individual status values to retain data flow and prevent cascading failures. This change reduces runtime errors in data ingestion, increases reliability of the SRS CG635 agent, and improves overall system resilience for downstream analytics and monitoring.

June 2025 monthly summary for simonsobs/sotodlib: Delivered a feature enhancement in the preprocess_obs pipeline that improves data filtering and observation grouping. Early LAT-formatted Observation ID filtering runs at the earliest stage, with additional checks against the existing database and enhanced handling of related observations via grouping. This work strengthens data integrity, reduces downstream processing load, and improves maintainability of the preprocessing stage.

May 2025 monthly summary focusing on delivering features, fixing critical issues, and enabling business value across the socs and sotodlib repositories. Highlights include robust time data handling, improved data acquisition configurability, and a corrected coordinate workflow to ensure reliable analytics and measurements.

April 2025 monthly summary for dev work on simonsobs/socs and simonsobs/sotodlib. Key features delivered: State Results Feed for PysmurfController; major bug fix: ephemeris file resource leak fixed in sotodlib. Impact: improved data reporting visibility and system stability; resource management enhancements; skills demonstrated across Python-based feed systems, data streaming, and cross-repo collaboration. Commits demonstrate focused, cohesive changes across repos.

February 2025 (2025-02) — Simonsobs SOCS: Delivered targeted resilience improvements for RTSP streaming by implementing pause-and-retry on reconnection failures in RTSPCameraAgent. This fix reduces downtime in flaky networks and prevents rapid failure cycles, enhancing reliability for camera streams and downstream consumers.

Month: 2025-01 — Focused on reliability and continuous video capture in the socs repository (simonsobs/socs). Key feature delivered: RTSP Stream Robustness Enhancement for RTSPCameraAgent, which adds automatic reconnection on stream interruptions, refactors stream initialization into a separate method, and updates the acquisition loop to continuously attempt reconnection to maintain a stable video stream capture. This work aligns with reliability and uptime goals for live video ingestion. Associated work item delivered as part of commit 2dc432b6e65b151a4529b703bf26417d5f9f6f52 (RTSPCameraAgent: connection robustness (#816)).

December 2024 monthly summary for simonsobs/socs: Focused on stabilizing the RTSP Camera Agent and improving Docker/OpenCV compatibility for headless deployments, delivering reliable file handling and repeatable deployments that strengthen data ingestion stability.