---
title: "Satellite Medium Res distribution | Guides | Self hosting | Self hosted maps"
description: "How to use MapTiler Satellite Medium Res dataset offline."
---

> For AI agents: a documentation index is available at [/llms.txt](https://docs.maptiler.com/llms.txt). Markdown versions of all pages are available by appending .md to any URL.

# Satellite Medium Res distribution

The Satellite Medium Res dataset is part of the MapTiler Satellite map. You can use it via API in [MapTiler](https://cloud.maptiler.com/tiles/satellite-v2/) or download it for self-hosting as a MapTiler data package. This page shows how to set up a sample layer from MapTiler Satellite Medium Res, downloadable from the [MapTiler data Satellite Medium Res download page.](https://www.maptiler.com/on-prem-datasets/dataset/satellite-2021/)

To optimize the size of this package, we prepared it in a WebP format with transparency. This format allows us to compress the size to hundreds of gigabytes (from the original terabytes of raw data).

## The Satellite Medium Res consists of two layers:

MapTiler Satellite Lowres

-   around 80 MB
-   overview of the world
-   this dataset is part of the free MapTiler Server starter pack downloadable from [MapTiler data](https://data.maptiler.com/server/).

![mceclip1.png](./4413759213841_655aa84eee.webp)

[MapTiler Satellite Mediumres 2021](https://www.maptiler.com/on-prem-datasets/dataset/satellite-2021/)

-   around 500GB
-   with detailed parts of the continental area.

![mceclip0.png](./4413753277457_3c41c93ec8.webp)

To serve this data, we recommend using the [MapTiler Server, which is available for free](https://www.maptiler.com/server/download/).

## How to combine multiple layers using Virtual Tileset JSON

1\. Download and unpack the MapTiler Server starter pack to your work directory from [MapTiler Data.](https://data.maptiler.com/server/)

2\. Download the Satellite Medium Res from [MapTiler data downloads section.](https://www.maptiler.com/on-prem-datasets/dataset/satellite-2021/)

3\. Move the downloaded file (maptiler-satellite-2021-XXXX.mbtiles) to your working directory.

4\. Open the text file called “_maptiler-satellite.json_” and update the virtual source with the following lines:

```json
"virtual_sources": [  
  {  
    "url": "maptiler-satellite-lowres",  
    "bounds": [  
      -20037508.342789, -20037508.342789244, 20037123.912877,  
      20037508.342789244  
    ],  
    "minzoom": 0,  
    "maxzoom": 6,  
    "_name": "satellite-lowres-2021"  
  },  
  {  
    "url": "maptiler-satellite-2021",  
    "bounds": [  
      -20037508.342789244, -13149614.7081853, 20037508.342789244,  
      17689362.572804667  
    ],  
    "minzoom": 3,  
    "maxzoom": 13,  
    "_name": "satellite-mediumres-2021"  
  }  
],
```

5\. Launch MapTiler Server in this folder and open the administration.

6\. Go to the Tiles section and rename the **ID** of Satellite Mediumres 2021 to **maptiler-satellite-2021**.

7\. Now, you can see a seamless mosaic in Tiles as **maptiler-satellite.json**.

Check out the [Virtual Tileset JSON in MapTiler Server](https://docs.maptiler.com/guides/on-prem/server/virtual-tileset/) article to learn more.