Asteroids with a possible Earth impact (Sentry risk table)
Every object on NASA JPL's Sentry risk table: asteroids whose orbits cannot yet rule out an impact with Earth in the next 100+ years. One row per object, with cumulative impact probability, number of possible impacts, year range, size and Palermo and Torino hazard ratings.
Columns
Stable keys — use them in the API, SQL and code
| Key | Name | Type | Description |
|---|---|---|---|
| designation | Designation | string | — |
| full_name | Object | string | — |
| impact_probability | Impact probability | number | Cumulative probability of any of the listed potential impacts (0–1). |
| impact_odds_1_in | Odds (1 in …) | number | 1 divided by the cumulative impact probability, rounded. |
| potential_impacts | Potential impacts | integer | Number of distinct potential impact dates found. |
| first_impact_year | First possible year | year | — |
| last_impact_year | Last possible year | year | — |
| palermo_cumulative | Palermo scale (cumulative) | number | Cumulative Palermo technical hazard rating; higher is more concerning, below −2 is negligible. |
| palermo_max | Palermo scale (max) | number | Highest Palermo rating of any single potential impact. |
| torino_max | Torino scale (max) | integer | Highest Torino rating (0–10) of any potential impact within 100 years. |
| diameter_km | Estimated diameter | number · km | — |
| absolute_magnitude | Absolute magnitude (H) | number | — |
| entry_speed_km_s | Entry speed | number · km/s | Speed relative to Earth before Earth's gravity accelerates it (hyperbolic excess velocity). |
| last_observed | Last observed | date | — |
| url | Sentry page | url | — |
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