Litchi Mission Hub Altitude

[dataengine66]

In everyone's experience, how accurate is the altitude in Mission Hub? I've exported into Google earth to see the virtual mission, but I wanted some opinions.

 

[BigAl07]

It seems fairly accurate but I always add a min or a 30' buffer just in case.

 

[Haggi]

Most maps are not very accurate on altitude.

Regarding Google Maps:
(Do not quote me, I do not remember the source)
Map resolution is vertical resolution of 30 meters and a horizontal resolution of 90 meters.
Considering that slope uses both resolutions, that’s a huge margin for error.
Do not trust maps..

If needed, copy the mission...run sharp corner WP's, point camera towards next WP.. and skip POI focus.
This will give you an idea about the altitude.
Maybe run mission on higher altitude on first run.
Never run autonomous mission (with risk of losing connection) without preparation.

 

[jimlips]

I've been lucky, I always give a 20' error buffer, but should give more. Today, I ran two Litchy missions, and before each one, I "manually" flew the mission. Glad I did, as it turns out the tall trees had grown about 30'! So I skipped that mission.

 

[GeoM1]

Most maps are not very accurate on altitude.

Regarding Google Maps:
(Do not quote me, I do not remember the source)
Map resolution is vertical resolution of 30 meters and a horizontal resolution of 90 meters.
Considering that slope uses both resolutions, that’s a huge margin for error.
Do not trust maps..

If needed, copy the mission...run sharp corner WP's, point camera towards next WP.. and skip POI focus.
This will give you an idea about the altitude.
Maybe run mission on higher altitude on first run.
Never run autonomous mission (with risk of losing connection) without preparation.

That begs a question I have: what is Litchi’s elevation source? Google? Can’t imagine. USGS?