# landing_target_estimator not starting automatically

Source: https://forum.modalai.com/topic/1157/landing_target_estimator-not-starting-automatically
Category: Flight Core and Legacy VOXL (https://forum.modalai.com/category/9/flight-core-and-legacy-voxl)
Tags: voxl-flight
Posted: 2022-07-26 10:58:50 UTC by ABDUL JAWAD SUBAHAN
Replies: 1 · Views: 399

## ABDUL JAWAD SUBAHAN · 2022-07-26 10:58:50 UTC

Hi,

I am trying to precision land using Pixy IRLock and VOXL

One major issue here is .. I have to start landing_target_estimator from NuttxShell everytime

as follows

nsh>landing_target_estimator start

how can i make it to start on boot?

Thanks in advance

## Reply by Chad Sweet (ModalAI staff) · 2022-08-02 05:15:17 UTC

Did you review the PX4 documentation? It looks like it has the command set [here](https://docs.px4.io/v1.12/en/advanced_features/precland.html)