`close_approaches`

Pack: jpl-ssd · Endpoint: https://gateway.pipeworx.io/jpl-ssd/mcp

NASA/JPL CNEOS — list near-Earth close approaches to Earth in a date range, with miss distance (AU), relative velocity (km/s), and absolute magnitude (size proxy). Keyless.

Parameters

Name	Type	Required	Description
`start`	string	yes	Start date (inclusive), YYYY-MM-DD.
`end`	string	yes	End date (inclusive), YYYY-MM-DD.
`max_distance`	string	no	Max miss distance, default “0.05” AU. Accepts lunar distances too, e.g. “10LD”.
`limit`	number	no	Max rows, default 25, max 100.

Example call

Arguments

{
  "start": "2024-01-01",
  "end": "2024-12-31"
}

curl

curl -X POST https://gateway.pipeworx.io/jpl-ssd/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"close_approaches","arguments":{"start":"2024-01-01","end":"2024-12-31"}}}'

TypeScript (@pipeworx/sdk)

import { Pipeworx } from '@pipeworx/sdk';
const pipeworx = new Pipeworx();

const result = await pipeworx.call('close_approaches', {
  "start": "2024-01-01",
  "end": "2024-12-31"
});

More examples

{
  "start": "2025-01-01",
  "end": "2025-06-30",
  "max_distance": "10LD",
  "limit": 50
}

Connect

Add this to your MCP client config, or use one-click install buttons:

{
  "mcpServers": {
    "jpl-ssd": {
      "url": "https://gateway.pipeworx.io/jpl-ssd/mcp"
    }
  }
}

See Getting Started for client-specific install steps.

close_approaches