Asteroid Impact Risk Assessment for One Object (NASA JPL Sentry)

jplssd/sentry-object

The JPL Sentry impact-monitoring assessment for one near-Earth asteroid, by designation or number (for example 101955 or 2000 SG344): whether it is currently on the Sentry risk list, and if so its summary (cumulative impact probability, Palermo scale cumulative and maximum, Torino scale, number of potential impacts, diameter in km, absolute magnitude, impact energy, observation span and the time of the last assessment) and the list of virtual impactors, each with its date, probability, Palermo value and energy. An object that was removed from the list or never on it returns found false with the reason. Impact probabilities of near-zero are normal; almost every listed object is far below any concern. NASA/JPL Solar System Dynamics data, served by Eden Engine; not an official NASA or JPL product.

activeper callv1

Price

$0.0026 per call

You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $0.50.

Data source

NASA/JPL Solar System Dynamics

Source: NASA/JPL Solar System Dynamics, Small-Body Database APIs (https://ssd-api.jpl.nasa.gov). U.S. government data. Served by Eden Engine; not an official NASA or JPL product.

Use it

Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.

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agent

// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "jplssd/sentry-object" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "jplssd/sentry-object" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "jplssd/sentry-object", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "jplssd/sentry-object", input: { /* ... */ } })

// 5. settle: the call is charged when it finishes, nothing to do

Not connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.

Pricing

Every charge this tool can incur.

Charge	Price
Per call	$0.0026

Updated: Oct 26, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "required": [
    "designation"
  ],
  "properties": {
    "designation": {
      "type": "string",
      "pattern": "^[A-Za-z0-9 ()/.'-]+$",
      "maxLength": 40,
      "minLength": 1,
      "description": "Asteroid number or designation, for example 101955 or 2000 SG344. A number is the most reliable form."
    }
  },
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "found"
  ],
  "properties": {
    "found": {
      "type": "boolean",
      "description": "True when the object is on the Sentry list."
    },
    "message": {
      "type": "string",
      "description": "Why nothing was returned (for example specified object removed), when found is false."
    },
    "summary": {
      "type": [
        "object",
        "null"
      ],
      "description": "Sentry summary: fullname, des, ip (cumulative impact probability), ps_cum, ps_max, ts_max, n_imp, diameter (km), h, energy, v_inf, v_imp, first_obs, last_obs, pdate."
    },
    "virtualImpactors": {
      "type": "array",
      "items": {
        "type": "object"
      },
      "description": "Possible impacts: date, ip, ps, ts, energy and sigma_mc, as the service states them (numbers as text)."
    },
    "virtualImpactorCount": {
      "type": "integer",
      "description": "Virtual impactors in this answer (at most 100)."
    }
  },
  "additionalProperties": false
}