 - Photos are taken by only airplane type UAVs.
 - Photos are taken by the camera pointing downwards and fixed, but it is not autostabilized.
 - The flying range is restricted by eastern and southern part of Ukraine (To the left of Dnipro river)
 - The image resolution could be from FullHd to 6252*4168
 - Altitude is prefefined and no more than 1km
 - Flights are done mostly in sunny weather
 - We can use satellite providers, but we're limited right now to Google Maps, which could be possibly outdated for some regions
 - Number of photos could be up to 3000, usually in 500-1500 range
 - During the flight UAV can make sharp turns, so that it is possible that next photo is absolutely different from the previous one (no  same objects), but it is rather exception than the rule