# Log mavlink how open?

**URL:** <https://discuss.bluerobotics.com/t/log-mavlink-how-open/1384>\
**Category:** QGroundControl\
**Created:** [August 11, 2017, 7:45pm UTC](https://discuss.bluerobotics.com/t/log-mavlink-how-open/1384 "2017-08-11T19:45:43Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![jwalser](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/jwalser/32/2234_2.png) [@jwalser](https://discuss.bluerobotics.com/u/jwalser)\
**Post date:** [August 12, 2017, 4:28am UTC](https://discuss.bluerobotics.com/t/log-mavlink-how-open/1384/2 "2017-08-12T04:28:50Z")

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Hi Ion, the log stores things like pilot inputs, motor outputs, IMU and pressure readings. You can read about them [here](https://www.ardusub.com/operators-manual/logging.html), there is also some discussion [here](http://discuss.bluerobotics.com/t/simulating-gps-input-to-pixhawk-using-target-tracking-sonar/1187/17).

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