{
  "stale": false,
  "last_checked": "Oct 8, 2026, 12:16 PM EDT",
  "official": {
    "kp": "NOAA SWPC Planetary K-index — live product (see HUD / SWPC). Not frozen here.",
    "kp_url": "https://www.swpc.noaa.gov/products/planetary-k-index",
    "iers": "x = 0.212992″, y = 0.342431″ (Bulletin A final, 27 Aug 2026; arcseconds)",
    "iers_url": "https://datacenter.iers.org/products/eop/rapid/daily/finals2000A.daily",
    "wmm": "NOAA NCEI World Magnetic Model (WMM2025) — a navigation model, not a reversal forecast",
    "wmm_url": "https://www.ncei.noaa.gov/products/world-magnetic-model",
    "note": "Official Earth-orientation and geomagnetic products stay in this column. They are measurements and models, not confirmation of ECDO or of a pole reversal.",
    "chandler_what": "Chandler wobble is a free wobble of Earth’s rotation axis relative to the crust. The IERS Earth Orientation Centre describes it as a free oscillation with a period of about 435 days. IERS’s useful-constants table lists the Chandler period in the terrestrial frame as 433.1 ± 1.7 mean solar days. Polar motion — the daily x and y IERS publishes — is the measured combination of Chandler wobble, an annual wobble, and other terms. This site does not invent an amplitude.",
    "chandler_snapshot": "IERS Rapid Service / Prediction Centre finals2000A.daily (IAU2000A), Bulletin A final values for 27 Aug 2026 (MJD 61279): x-pole 0.212992 arcseconds (±0.000091), y-pole 0.342431 arcseconds (±0.000091). Product file last modified 27 Aug 2026, 1:15 PM EDT. Units are arcseconds, as published.",
    "chandler_figure_url": "https://hpiers.obspm.fr/eop-pc/WEBFTP/graphes/img_PM_9010.png",
    "chandler_figure_caption": "IERS Earth Orientation Centre Figure 1: polar motion since 2006 (Chandler wobble plus annual), with a 180-day prediction in yellow. Official IERS illustration of the motion — not a Doom Signals plot, not a reversal forecast, and not a substitute for the dated x/y snapshot.",
    "chandler_figure_source_url": "https://hpiers.obspm.fr/eop-pc/index.php?index=pm&lang=en"
  },
  "hypothesis": {
    "name": "ECDO (Exothermic Core-Mantle Decoupling / Dzhanibekov Oscillation)",
    "status": "tracked hypothesis, not proven science",
    "notes": "Some ECDO and pole-reversal discussions cite Chandler wobble, polar motion, and South Atlantic Anomaly features. Official IERS x-pole/y-pole values and peer-reviewed SAA radiation-belt papers (including Nature Communications MSS1 transient distortions) are measurements and physics — not confirmation of a geomagnetic reversal, a crustal flip, or ECDO. This column stays separate from the official-data column. ECDO remains hypothesis only."
  },
  "notes": "Updated Oct 8: SWPC G2 watch (WATA30 Serial 283) still set for Oct 9, peak about 5 to 8 AM ET Friday; second CME from Region 4549 modeled to arrive early Oct 11 UTC, no watch yet; M6.7 flare Oct 8, R2 radio blackout. Updated Oct 5 morning: G1 returned, ALTK05 Serial 2054 at 11:52 PM EDT Oct 4 under WARK05 2269 (to 11 AM EDT Oct 5); Kp 2.33 by 2 to 5 AM EDT. Updated Oct 4 evening: G2 reached, SWPC ALTK06 Serial 726 at 4:57 PM EDT; WARK06 671 expired 7:59 PM EDT; no K7. "
}