# Lidar Mapping

Lidar mapping uses airborne laser scanning to create highly accurate 3D point clouds of terrain, structures, and vegetation. Common applications include surveying, construction, infrastructure inspection, forestry, mining, and aggregates.

## Payload Options

### Flux LiDAR

Flux is Freefly's purpose-built lidar payload for Astro, featuring survey-grade accuracy with sensors from Livox, Hesai, or Ouster. It includes dual full-band GNSS receivers and advanced low-noise IMUs for precise georeferencing.

Key advantages:

* Quick setup and data capture
* On-site processing via iPad for immediate field verification
* Compatible with Astro, Astro Max, and Alta X Gen 2

{% content-ref url="/pages/PKsjinocOGdkheWSuHJ4" %}
[Flux Lidar](/ecosystem/payloads/flux-lidar.md)
{% endcontent-ref %}

{% content-ref url="/pages/iZ39a8FHy2m0Je8lRjyG" %}
[Mapping Workflow with Flux](/ecosystem/payloads/flux-lidar/mapping-workflow-with-flux.md)
{% endcontent-ref %}

### Hovermap ST-X and ST

The Emesent Hovermap lidars enable detailed point cloud creation and can operate in GPS-denied environments like tunnels, mines, and under bridges using real-time SLAM.

Key advantages:

* Passive mapping mode for open-air operations
* Assisted and autonomous flight modes for GPS-denied environments
* Real-time 3D modeling for obstacle avoidance

{% content-ref url="/pages/oMI0k9h3384CBFOvVWqZ" %}
[Hovermap ST-X and ST Lidar](/ecosystem/payloads/third-party-payloads/hovermap-st-x-and-st-lidar.md)
{% endcontent-ref %}


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