# Client.open_geotiff

```python
async def Client.open_geotiff(
    asset: Asset,
    *,
    prefetch: int = 32768,
    multiplier: float = 2.0,
) -> GeoTIFF
```

Open a GeoTIFF through its resolved object store without reading pixel data.

This method requires Python 3.11 or newer.

## Parameters

**asset**

`Asset`

The GeoTIFF asset to resolve and open.

**prefetch**

`int`

The initial metadata range size in bytes. Defaults to `32768`.

**multiplier**

`float`

The growth factor for later metadata range requests. Defaults to `2.0`.

## Returns

An async-geotiff `GeoTIFF` backed by the resolved object store.