EDS Eclipse 2026 ArchiveArchive overview Report  PDF

12 August 2026 · EDS × CosmoNutz

When the
sky blinked.

Two observing systems, in two places, recorded the same solar eclipse on one working timeline. At the EDS station in Espinho, obscuration reached 97.9%.

Minimum recorded light 11 lux

19:32:22 WEST
8 s after Espinho predicted maximum

Earth witness
97.9% partial eclipse · Espinho
Record integrity
111 / 111 one-minute readings
Shared record
2 witnesses · one working timeline

Observation model

One shadow.
Two witnesses.

Independent systems observed the same astronomical event from different local circumstances. Network-synchronized acquisition time provides an operationally reliable reconstruction—not a claim of identical skies or precision-certified timing.

01 / Earth

EDS environmental station

Espinho, Portugal

One-minute light and environmental observations from a persistent local observer.

02 / Sky

CosmoNutz optical record

Vila Praia de Âncora area, northern Portugal

Seestar telescope acquisition. The precise observing position is intentionally withheld.

Read detailed provenance

Signature experience

Replay the eclipse.
Across both records.

Scrub the telescope evidence and discrete EDS observations on one timeline. When the optical record ends at 19:55:38 WEST, the environmental witness continues to last contact.

Telescope frame aligned to the Espinho predicted maximum reference time Earth + SkyInteractive event replay 01:55:36

18:29:57–20:25:33 WESTComplete working event window

Telescope + telemetryWith a data-only environmental epilogue

Enter the Replay

Primary signal · ambient illuminance

The light result
is decisive.

The station recorded a sharp V-shaped eclipse signature: collapse into the one-minute interval containing the Espinho predicted maximum, followed by recovery while ordinary sunset continued.

Cadence note: the plotted trace uses five-minute centered means. The 11-lux annotation identifies the raw one-minute observation at 19:32:22 WEST; its corresponding five-minute mean is 17.8 lux.

Recorded minimum11 lux19:32:22 WEST

Alignment
+8 seconds
after Espinho predicted maximum
Depth
−99.0%
five-minute light reduction
Recovery
+229.4 lux
over the next 15 minutes
Continuity
111 / 111
complete one-minute observations
Inspect the complete evidence chapter

The counterfactual

A sunset curve
should not make a V.

Twelve nearby evenings were compared at the same local times. Normalization exposes shape: every control kept darkening after the corresponding maximum window; the eclipse evening reversed.

Timing, depth, and reversal jointly support eclipse detection. The full report documents the normalization and control method.

Scientific restraint

The thermal result
is subtle.

“EDS detected the eclipse in local ambient light and captured a possible small thermal response.”
Detected

Eclipse signature in ambient light.

High-confidence detection through the timing, depth, and rebound of the illuminance trace.

Possible

Small additional thermal response.

Cooling was slightly stronger than the preselected matched evenings, but the estimated excess remained small.

Not established

Unique humidity, dew-point, or pressure response.

Those traces overlap ordinary coastal sunset behavior and lack independent wind or cloud controls.

Boundary: one event, one station, one sunset. Lux is comparative—not calibrated solar irradiance.

Read interpretation and limitations

Research & engineering

From field signal
to permanent record.

ResponsibilityTeófilo Couto

Environmental instrumentation, telescope acquisition and astrophotography, software and data engineering, analysis, visualization, replay, reproducibility, archive engineering, and deployment.

  1. ObserveEDS sensorsPersistent environmental witness
  2. CaptureOne-minute telemetry111 complete event readings
  3. PreserveTime-series storageRead-only extraction
  4. TestControl-evening analysisTwelve nearby evenings
  5. WitnessCosmoNutz telescope acquisitionIndependent optical record
  6. AlignNetwork-synchronized timeOperational reconstruction
  7. ExplainScientific visualizationEvidence with explicit limits
  8. ReconstructInteractive replayEarth and Sky together
  9. PublishStatic archive + deploymentDurable, inspectable artifacts
EDS
Environmental witness
CosmoNutz
Optical and astronomical witness
MDNT
Independent research and engineering laboratory

The permanent record

Experience it.
Understand it.
Inspect it.

The archive separates the public encounter, the complete scientific publication, physical records, and source-verifiable artifacts without giving every file equal weight.

One shadow.
Two witnesses.
Two places.
One permanent record.

Research & engineeringTeófilo CoutoEDS · CosmoNutz · MDNT
Enlarged archive visual