GSPT-Based Critical Manifold Reconstruction and Predictive Activity Modeling of Interstellar Comet 3I/ATLAS: Data and Scripts

This dataset contains the full set of processed photometry, geometric parameters, slow‐manifold reconstructions, regime segmentation results, prediction-band calculations, and long-term activity forecasts associated with the study “GSPT-Based Critical Manifold Reconstruction and Predictive Activity Modeling of Interstellar Comet 3I/ATLAS” (submitted to The Astrophysical Journal Letters). The complete analysis pipeline transforms raw ATLAS, TESS, and COBS photometry into intrinsic brightness space, joins the measurements with JPL–Horizons ephemerides, reconstructs the comet’s