# celestrak.satellite.group

Retrieve TLE orbital element sets for an entire predefined satellite group from CelesTrak. Returns all satellites in the group with NORAD catalog number, international designator, epoch, and full orbital parameters. Supported groups: "stations" (ISS, CSS, Tiangong), "starlink" (SpaceX constellation ~6000 sats), "active" (all active satellites ~7000), "gps-ops" (GPS operational), "glo-ops" (GLONASS), "galileo" (EU), "beidou" (Chinese), "weather" (all weather satellites), "noaa" (NOAA series), "goes" (GOES geostationary weather), "geo" (all geostationary), "amateur" (amateur radio), "cubesat" (CubeSats), "last-30-days" (recent launches), "iridium", "iridium-NEXT", "globalstar", "orbcomm", "oneweb", "intelsat", "ses", "planet", "spire". Data from US Space Force, no auth required.

Agent View of the PolicyLayer registry record for `celestrak.satellite.group`. HTML page: https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/celestrak.satellite.group

## Facts

- Tool: `celestrak.satellite.group`
- Server: Apibase (`apibase-mcp-client`) — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase.md
- Install: `npx -y apibase-mcp-client`
- Homepage: https://github.com/whiteknightonhorse/APIbase
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server auth posture: open
- Server rate-limited: no
- Parameters: 1 (1 required)
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `group` | string | yes | Predefined satellite group. Key groups: "stations" (ISS, CSS, Tiangong), "starlink" (SpaceX Starlink ~6000 sats), "active" (all active satellites ~7000), "gps-o |

Parameters from the server's own tool schema.

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "celestrak.satellite.group",
    "arguments": {
      "group": "<group>"
    }
  }
}
```

## Why celestrak.satellite.group is rated Low

Tool retrieves publicly available satellite orbital data without side effects or modifications.

From the tool's own definition: "Retrieve TLE orbital element sets for satellites. Returns orbital parameters. No modification or deletion."

Risk signals: Bulk/mass operation — affects multiple targets

## Use case

AI agents call celestrak.satellite.group to retrieve information from Apibase without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Apibase:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "celestrak.satellite.group": {}
  }
}
```

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## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=io-github-whiteknightonhorse-apibase · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-whiteknightonhorse-apibase