Euro UFO Index (EuroUFO + UAP Check)

Overview
Joint pilot project of EuroUFO.net and UAP Check (Philippe Ailleris). 20 national organizations share their UAP datasets for the first time. Coverage: 37 countries, over 32,000 events (period 2019-2024).

Methodology
Aggregation of national sighting databases into a unified European index. Each participating country provides standardized time series data. Enables country-to-country comparisons for the first time (reporting activity, seasonal patterns, regional hotspots).

Significance
The most comprehensive overview of European UAP reporting activity ever created. Important tool for evidence-based UAP policy at EU level. Demonstrates the feasibility of international UAP data aggregation — still completely missing at the global level.

Strengths and Weaknesses
Groundbreaking project for European cooperation. Strong methodological foundation through Ailleris' ESA experience. However: dependent on voluntary data delivery, not all European countries participating. No public web access for the dataset.