Impact Risk Object

{
  "absoluteMagnitudeH": 20.63,
  "asOf": "2026-10-11T08:41:43.685Z",
  "dataArcDays": 7693.3,
  "degraded": false,
  "designation": "101955",
  "diameterKm": 0.490000000000006,
  "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
  "impactEnergyMt": 1421,
  "impactProbability": 0.0005717,
  "impactSpeedKmS": 12.68,
  "lastObservation": "2020-10-3.80160",
  "likeliestImpactDates": [
    {
      "date": "2182-09-24.85",
      "energyMt": 1421,
      "palermo": -1.58,
      "probability": 0.0003702,
      "torino": null
    },
    {
      "date": "2187-09-25.06",
      "energyMt": 1422,
      "palermo": -2.31,
      "probability": 0.0000709,
      "torino": null
    }
  ],
  "massKg": 74200000000,
  "name": "101955 Bennu (1999 RQ36)",
  "notChecked": [
    "objects on ESA's NEOCC risk list but not on Sentry",
    "close approaches that do not carry an impact possibility (see /body-approaches)",
    "…2 more"
  ],
  "observations": 554,
  "oneIn": 1749,
  "orbitSolutionDate": "2021-07-14 11:24:00",
  "palermoBand": "Merits careful monitoring",
  "palermoCumulative": -1.4,
  "palermoMax": -1.58,
  "potentialImpacts": 157,
  "reasons": [
    "Torino level 0 or unrated: no unusual hazard.",
    "Probabilities come from a sample of orbits that fit the observations; more tracking usually lowers them to zero.",
    "…1 more"
  ],
  "sentryUpdated": "2026-10-10 15:35:35",
  "source": "NASA JPL Solar System Dynamics",
  "sourceUrl": "https://ssd-api.jpl.nasa.gov",
  "summary": "101955 Bennu (1999 RQ36) is on the Sentry list: cumulative impact probability 0.000572 (about 1 in 1,749), Palermo -1.4 (Merits careful monitoring), Torino 0, 157 possible impact(s).",
  "torinoMax": null,
  "verdict": "ON_SENTRY_LIST"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://space-objects.x402tookit.com/impact-risk-object?designation=101955'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://space-objects.x402tookit.com/impact-risk-object?designation=101955' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fspace-objects.x402tookit.com%2Fimpact-risk-object
const res = await pay("https://space-objects.x402tookit.com/impact-risk-object?designation=101955");
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://space-objects.x402tookit.com/impact-risk-object?designation=101955")
    print(res.status_code, res.text)