Matching
Key = normalized IAU designation. 1979 XB and 1979XB are the same object. We keep each source’s raw values; no averaging.
Counts
significantDivergences — IP, Palermo, or Torino past threshold.
totalFieldDivergences — everything flagged, including distance / v_rel / date.
Thresholds
| Field | Kind | Cut | Notes |
|---|---|---|---|
| missDistanceAu | orbital | 3% rel | JPL vs ESA miss distance; flag above 3% relative. |
| relativeVelocity | orbital | 1% rel | Relative speed; flag above 1%. |
| closeApproachDate | orbital | date | Calendar day only (drop time). |
| cumulativeImpactProbability | risk | >2× (floor 1e-7) | Ratio >2×; ignore if both <1e-7. |
| palermoScaleCumulative | risk | |Δ| > 0.5 | Absolute Palermo gap > 0.5. |
| torinoScaleMax | risk | exact | Any Torino mismatch counts. |
miss 3% · v_rel 1% · IP ×2 · floor 1e-7 · PS |Δ| 0.5
Caveats
- ESA format can change.
- No DB — short TTL memory cache.
- 3D panel is miss distance only.
- We don’t recompute impact probabilities.