# JPL Sentry Impact Risk Table

> JPL Sentry Impact Risk Table is a paid API for AI agents from space-objects.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-21).

Returns JPL Sentry-monitored near-Earth objects above a Palermo-scale threshold, with impact probability, Torino level, size, and potential impact years.

## Facts

- Endpoint: GET https://space-objects.x402tookit.com/impact-risk-table?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/jpl-sentry-impact-risk-table-51d3a948
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GC_cHiVLqiMlxEJGlEbpq

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability jpl-sentry-impact-risk-table-51d3a948
```

Example prompt: Pull the JPL Sentry impact risk table for me — show up to 30 objects with a cumulative Palermo scale of at least -2, and only include ones with an absolute magnitude H of 25 or lower so we're looking at the bigger threats.

## When to prefer this

Use this endpoint when you need a ranked, filterable list of all currently tracked asteroid impact threats from JPL Sentry in one call, especially when you want to apply Palermo-scale or size filters. Prefer this over a single-object lookup when you need a broad threat landscape view rather than details on one specific body.

## Known failure modes

- No objects returned if minPalermo threshold is set too high (too restrictive)
- Degraded flag set if upstream JPL Sentry data is temporarily unavailable or stale
- Invalid parameter values (e.g. maxH outside 10–35, limit outside 1–50) may result in errors or empty results
- JPL Sentry data may not reflect very recent observations if not yet processed

## How this service works

JPL Sentry impact-monitoring objects above a Palermo-scale threshold: probability, Torino level, size and impact years.

## Output

Returns a list of near-Earth objects from the JPL Sentry system, each including designation, name, cumulative Palermo scale, maximum Torino level, impact probability (and one-in-N odds), estimated diameter in km, impact speed, potential impact count, possible impact years, and last observation date. Also includes metadata such as data source, timestamp, total matches, and a plain-language summary and verdict.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "maxH": {
       "type": "number",
       "description": "Only objects with absolute magnitude H at or below this (larger objects), 10 to 35"
      },
      "limit": {
       "type": "integer",
       "description": "Objects returned, 1 to 50 (default 20)"
      },
      "minPalermo": {
       "type": "number",
       "description": "Minimum cumulative Palermo scale, -12 to 2 (default -3; lower values list many more objects)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "maxH": {
       "type": [
        "null",
        "number"
       ]
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "objects": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "object",
        "properties": {
         "name": {
          "type": [
           "null",
           "string"
          ]
         },
         "oneIn": {
          "type": [
           "null",
           "number"
          ]
         },
         "torinoMax": {
          "type": [
           "null",
           "number"
          ]
         },
         "diameterKm": {
          "type": [
           "null",
           "number"
          ]
         },
         "palermoMax": {
          "type": [
           "null",
           "number"
          ]
         },
         "designation": {
          "type": [
           "null",
           "string"
          ]
         },
         "impactYears": {
          "type": [
           "null",
           "string"
          ]
         },
         "impactSpeedKmS": {
          "type": [
           "null",
           "number"
          ]
         },
         "lastObservation": {
          "type": [
           "null",
           "string"
 
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/jpl-sentry-impact-risk-table-51d3a948/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from space-objects.x402tookit.com](https://www.zero.xyz/host/space-objects.x402tookit.com/llms.txt)