There are a number of scenarios that will determine the best way for you to collect imagery. The starting point for identifying how to collect the data you need is to first understand how you intend to use the data. Below we've listed several use-case examples. These settings should be used as guidelines and a starting point. Many users find it helpful to adjust he below-suggested settings based on crop, time of year, location, and several other factors. 


If you need help, we encourage you to contact the Sentera Support desk. 


Collecting data for NDVI, NDRE, and/or RGB QuickTiles


For overall ideal setting:

Overlap: 30% or QuickTile Setting in FieldAgent™ Mobile

Altitude: 400 Feet or 122 Meters

Speed: 18 MPH or  8 MPS

Time of Day: Mid Day. You want to fly when the sun is highest in the sky

Conditions: Clear, Mostly Clear or Overcast


Collecting data for NDVI, NDRE, and/or RGB Full Mosaics


For overall ideal settings:

Overlap: 80% or DSM/Orth... setting in FieldAgent Mobile.

Altitude: 400 Feet or 122 Meters

Speed: 18 MPH or  8 MPS

Time of Day: Mid Day. You want to fly when the sun is highest in the sky

Conditions: Clear, Mostly Clear or Overcast


Collecting data for 3D Mapping or Volumetrics


For overall ideal settings:

Overlap: 80% or DSM/Orth... setting in FieldAgent Mobile.

Altitude: 400 Feet or 122 Meters

Speed: 18 MPH or  8 MPS

Flight Pattern: Best results will require that the location is flown twice; once in a North-South pattern and once in an East-West pattern.

Time of Day: Mid Day.  You want to fly when the sun is highest in the sky

Conditions: Clear, Mostly Clear or Overcast


Collecting data for Stand Count


For overall ideal settings:

Overlap: -100% or Spot

Altitude: 50 Feet or 16 Meters

Speed: 20 MPH or 9 MPS

Early Season Plant Growth of at least V2 or at least 2 inches or 5 CM from tip to tip for the leaf.


Collecting data for Weed Density Maps


For overall ideal settings:

Overlap: 30% or QuickTile

Altitude: 150 Feet or 45 Meters

Speed: 20 MPH or 9 MPS

Early Season Plant Growth of at least V2 or at least 2 inches or 5 CM from tip to tip for the leaf.



Small Fields or Plots


For overall ideal settings:

Overlap: 30% to 80%

Altitude: 51 to 400 Feet or 16 to 122 Meters

Speed:  1-18 MPH or  1-8 MPS

Time of Day: Mid Day.  You want to fly when the sun is highest in the sky

Conditions: Clear, Mostly Clear or Overcast

Notes:  Small plot can be challenging to fly, the main thought is to test different options until you find what works for you.  Advances users can change how and when the sensor is triggered for collecting very small plots.  This does require manual flight in most cases.


Taking into account wind and field shapes


Wind:

If the wind is strong and close to, but not above, the aircraft's limits to obtain high-quality imagery, it is recommended that the drone flies at a slower speed, for example in the 4-5-meter range. Note, this will increase flight time and the number of batteries needed to complete the flight. Additionally, the pilot may want to consider adjusting the aircraft's flight direction so that the drone is flying into and with the wind. This will help keep it on the intended path.


Field Shape:


Adjusting the flight path can make the collection of the images more efficient and may have a reduction in flight time. Below are two different flight patterns of the same field. The flight pattern for North-South will produce a better QuickTile image as there are few stops and starts of the drone changing direction.