Solar & Geomagnetic Activity Analysis
Do UFO sightings really correlate with solar or geomagnetic activity, as informally claimed across paranormal-research communities? We tested it against real historical data (the official Ap geomagnetic index and sunspot number since 1932) for every case's own reported date — not estimates.
Data AnalysisCore Thesis
Loading live figures from the site's own solar activity dataset…
Origin & History
The claim that unusual reports of many kinds — including UFO sightings — cluster around periods of heightened solar or geomagnetic activity is a recurring, informal idea across paranormal-research communities generally, sometimes framed around the idea that geomagnetic disturbances affect human perception or brain activity. It's rarely, if ever, actually tested against a real case dataset with real historical space-weather data. This page does that test directly.
This is also a genuinely different kind of analysis than this site's other data exclusives: instead of testing where a case happened (water, nuclear facilities, restricted airspace, submarine cables), this page tests when it happened, against a real, independent historical record of solar and geomagnetic conditions.
Methodology
Every figure on this page is computed, not looked up or guessed:
- Real historical geomagnetic and solar data. GFZ Potsdam (the German Research Centre for Geosciences) maintains the official international reference dataset for the planetary Ap geomagnetic index, Kp index, sunspot number (SN), and F10.7 solar radio flux, daily since January 1932. This page fetches that data directly rather than estimating it.
- Real per-case lookup. For every live case with a resolvable YYYY-MM-DD date, this page looks up the real historical Ap and SN values for that exact date.
- Real baseline comparison. Every one of the 34,566 real days in the full 1932-present dataset forms the baseline distribution. If case dates were disproportionately geomagnetically active or solar-active, the case-date distribution would visibly diverge from this baseline. If they weren't, it wouldn't.
Known limitations, stated honestly: 17 of this site's live cases have dates outside the 1932–present coverage window (older historical and ancient entries) or an unresolvable partial date, and are excluded from these statistics rather than guessed at. This page tests daily-average activity, not activity at the exact hour of a sighting — a genuinely instantaneous space-weather effect could theoretically be missed by a daily average, though the Ap and SN indices are specifically designed to characterize sustained conditions, not momentary spikes.
The Findings
Case Dates Look Like Any Other Day
Computing…
The Most Active Days, For Context
Computing…
This is a genuine null result, and it's reported as one rather than reframed to sound more interesting than it is: case dates on this site show essentially the same solar and geomagnetic activity as a random day drawn from the same 94-year historical record. That doesn't prove no relationship could ever exist in a different, larger dataset — but for this site's own case list, the "sightings correlate with solar activity" claim simply doesn't show up in the real data. A flat, unremarkable result stated plainly is exactly what an honest test of an unproven claim should sometimes produce.
Cross-Referenced Against NUFORC & GEIPAN
The same real GFZ Potsdam Ap/sunspot-number lookup, run against every resolvable date in NUFORC's ~147,585 reports and GEIPAN's ~3,368 cases — at this scale, a much stronger test of whether the null result above generalizes.
Computing…
The Complete, Live Data Table
Every case with a resolvable date, its real historical Ap index and sunspot number for that day. This table re-reads data/solar_activity_analysis.json directly, so it reflects the current state of the site's data on every page load.
| Case | Date | Ap Index ↓ | Sunspot Number |
|---|---|---|---|
| Loading live data… | |||
Is This a Known Idea?
Yes — informally and recurrently, but without a rigorous, checkable test against real case data that this research turned up. The idea has circulated in paranormal-research writing for decades, sometimes drawing loosely on real, unrelated science showing that geomagnetic activity can affect biological systems and technology (the basis of real space-weather forecasting for satellite and power-grid operators), extended speculatively to human perception and anomalous-experience reporting. This page is, to this site's knowledge, the first attempt to test that specific claim against a real UAP case list with real historical space-weather data rather than repeat it as received wisdom.
Theoretical Alignment
This page doesn't argue for or against any theory of UAP origin — it tests one specific, commonly-repeated auxiliary claim and reports what the real data actually shows. It's a sibling to the Lunar & Atmospheric Conditions Analysis as the other "when, not where" data exclusive in this site's real-computed-data series.
Sources
- GFZ Potsdam (Helmholtz Centre for Geosciences). Kp, ap, Ap, SN, F10.7 since 1932 — the official international reference dataset this entire page is built on, updated daily. kp.gfz-potsdam.de
- OverClassified. data/geo/geomagnetic_solar_daily.json — the site-hosted, parsed copy of GFZ's dataset used by this page's build script. /data/geo/geomagnetic_solar_daily.json
- National UFO Reporting Center (NUFORC) and GEIPAN (CNES) — the two independent datasets cross-referenced above. nuforc.org / geipan.fr
- OverClassified. data/solar_crossref.json — the live cross-reference dataset built by
scripts/build_solar_lunar_crossref.js. /data/solar_crossref.json - OverClassified. data/solar_activity_analysis.json — the live, generated per-case dataset this page renders from, built by
scripts/build_solar_activity_analysis.js. /data/solar_activity_analysis.json - OverClassified. Lunar & Atmospheric Conditions Analysis — the sibling "when, not where" data exclusive. /theories/lunar-atmospheric-conditions-analysis/
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