> ## Documentation Index
> Fetch the complete documentation index at: https://docs.rotastellar.com/llms.txt
> Use this file to discover all available pages before exploring further.

# OCU Summary

> Returns the OCU capacity profile for a given satellite bus class

<Note>
  **Base URL:** `https://rotastellar-cae.subhadip-mitra.workers.dev`
  — No API key required. CORS-validated.
</Note>

### Path Parameters

| Parameter  | Type   | Description                                                            |
| ---------- | ------ | ---------------------------------------------------------------------- |
| `busClass` | string | Satellite bus class. One of: `1U`, `2U`, `3U`, `6U`, `12U`, `SmallSat` |

<RequestExample>
  ```bash theme={null}
  curl https://rotastellar-cae.subhadip-mitra.workers.dev/v1/ocu/summary/6U \
    -H "Origin: https://rotastellar.com"
  ```
</RequestExample>

<ResponseExample>
  ```json 200 OK theme={null}
  {
    "bus_class": "6U",
    "profile": {
      "power_generation_w": 80,
      "bus_overhead_w": 30,
      "compute_available_w": 50,
      "memory_mb": 4096,
      "storage_gb": 32
    },
    "capacity_bands": [
      { "ocu": 0.25, "power_w": 12.5, "description": "Light sensing / telemetry" },
      { "ocu": 0.50, "power_w": 25.0, "description": "Edge inference" },
      { "ocu": 0.75, "power_w": 37.5, "description": "Split learning / compression" },
      { "ocu": 1.00, "power_w": 50.0, "description": "Full compute allocation" }
    ],
    "ocu_reference": {
      "sunlit_ocu_max": 1.0,
      "eclipse_ocu_max": 0.4,
      "daily_average_ocu": 0.72
    }
  }
  ```
</ResponseExample>