3I/ATLAS (C/2019 Y4) - Photometric Anomaly 2025

This version extends the original 3I/ATLAS (C/2019 Y4) Photometric Anomaly 2025 dataset with a comparative analysis against predicted magnitudes from NASA’s JPL Horizons ephemerides service.Observed photometric data from the Minor Planet Center (MPC) were cross-matched with modelled total magnitudes (Tmag) to quantify residual deviations using open-source Python scripts. The results confirm a sustained brightness excess of Δm ≈ 4.2 mag (≈ ×47 flux) during July–October 2025, significantly exceeding geometric illumination expectations.Residual analysis and normalized light-curve visualizations reinforce the interpretation of intrinsic physical activity—likely surface reactivation or volatile release—following the object’s solar conjunction. All new outputs (residual CSVs, normalized plots, and updated analysis scripts) are SHA-256 verified and timestamp-anchored on the Bitcoin blockchain via OpenTimestamps, ensuring permanent reproducibility and authenticity.本版本在原始3I/ATLAS（C/2019 Y4）光度异常2025数据集的基础上，新增了与NASA喷气推进实验室（Jet Propulsion Laboratory, JPL）Horizons星历表服务所预测星等的对比分析。研究人员将小行星中心（Minor Planet Center, MPC）提供的观测光度数据与建模总星等（Tmag）进行交叉匹配，并借助开源Python脚本量化残差偏差。分析结果证实，2025年7月至10月期间，该天体存在持续的光度超额现象，Δm≈4.2星等（约合47倍辐射通量），显著超出几何光照预期。残差分析与归一化光变曲线可视化结果进一步强化了"该天体在太阳合相后存在固有物理活动"的推论，该活动大概率表现为表面再活化或挥发性物质释放。所有新增产出（残差CSV文件、归一化绘图文件与更新后的分析脚本）均通过SHA-256验证，并借助OpenTimestamps将时间戳锚定至比特币区块链，确保结果可永久复现且具备真实性。