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Konstantin Malanchev

PROFILE

Konstantin Malanchev

Developed and maintained advanced astronomical data analysis pipelines for the lsst-sitcom/linccf repository, focusing on scalable light-curve processing, transient detection, and anomaly detection workflows. Leveraged Python, Jupyter Notebooks, and libraries such as Dask and Pandas to enable efficient data loading, feature extraction, and visualization of time-domain astronomical datasets. Refactored and expanded notebook-driven workflows to support reproducible analyses, including automated anomaly detection and light-curve animation toolkits. Enhanced data integrity by integrating heliocentric time corrections and cross-matching with external catalogs. Improvements to code structure and documentation increased maintainability, while new tutorials and expanded datasets broadened the scope of scientific exploration.

Overall Statistics

Feature vs Bugs

92%Features

Repository Contributions

25Total
Bugs
1
Commits
25
Features
12
Lines of code
464,062
Activity Months4

Work History

June 2025

9 Commits • 5 Features

Jun 1, 2025

June 2025 monthly summary: Delivered substantive improvements across two repositories, focusing on transient detection, variability analysis, notebook maintainability, data expansion, and cross-dataset integration. These efforts enhanced data loading and processing efficiency, refined EW period phasing, and broadened observational coverage, contributing to faster insights and reproducibility across teams.

April 2025

2 Commits • 1 Features

Apr 1, 2025

April 2025 delivered an end-to-end, notebook-driven data processing and anomaly-detection pipeline for the LinCCF project (lsst-sitcom/linccf). Key outcomes include refactoring notebooks to load/process catalog data with heliocentric times, adding transients.ipynb to detect outbursts in ComCam data, and establishing a scalable light-curve feature extraction and Automated Anomaly Detection (AAD) pipeline. These changes improve data quality, reproducibility, and time-to-insight, with visualization and data loading powered by pandas, dask, and plotly.

February 2025

2 Commits • 1 Features

Feb 1, 2025

February 2025 monthly summary for lsst-sitcom/linccf: Delivered an Astronomical light-curve animation and visualization toolkit, with notebook-based animations, image cutouts, and MP4 export. Refactored utility functions into a dedicated module and extended visualizations for broader astronomical data processing. This work enables reproducible, shareable visual analyses and faster data exploration across research workflows.

January 2025

12 Commits • 5 Features

Jan 1, 2025

January 2025 summary for lsst-sitcom/linccf focusing on delivering notebooks and refinements that enable scalable data loading, exploration, and time-domain analysis. Key outputs include a Cone Search Notebook for data loading and Dask-based workflow, refinements to single-object notebooks for cleaner processing and streamlined periodic analyses, and fixes to ensure data outputs in by_oid notebooks are consistent with the latest dataset (including PSF flux fields). Enhancements to time-domain analysis feature Lomb-Scargle periodogram calculations with more robust WCS-based cutouts and added data points, plus a new visualization notebook for light curves and cutouts. Periodic Kostya notebook for ComCam RR Lyrae workflows updated as well. These efforts are complemented by multiple commit-level improvements to ensure reproducibility and clarity across analyses.

Activity

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Quality Metrics

Correctness85.2%
Maintainability86.4%
Architecture84.8%
Performance78.0%
AI Usage23.2%

Skills & Technologies

Programming Languages

Jupyter NotebookPythonipynbrst

Technical Skills

AstronomyAstronomy DataAstronomy Data AnalysisAstronomy Data ProcessingAstropyCode FormattingConiferestDaskData AnalysisData VisualizationImage ProcessingJupyter NotebookJupyter NotebooksLSDBLSST

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

lsst-sitcom/linccf

Jan 2025 Jun 2025
4 Months active

Languages Used

Jupyter NotebookPython

Technical Skills

AstronomyAstronomy Data ProcessingAstropyDaskData AnalysisData Visualization

astronomy-commons/lsdb

Jun 2025 Jun 2025
1 Month active

Languages Used

Jupyter NotebookPythonipynbrst

Technical Skills

Astronomy DataCode FormattingData AnalysisJupyter Notebooks