Mission Planning

Question 1

What are some business issues, when looking into an Aerial photography mission?

Answer 1

• Cost of Survey - schedule for period inspection

- Criteria for reflight - schedules for delivery and payment

Question 2

What are some weather considerations

Answer 2

• avoid strong winds - plan drifts off course, turbulence

- less than 10% cloud cover as clouds/shadows create problems

Question 3

If shadowing is wanted what time of day would you want? What angle
What about no shadow?

Answer 3

If shadowing is wanted, your image would want 30 degrees or less.
If shadowing is not wanted you would want an angle between 30 -52 degrees (+/- 2 hours of solar noon).

Question 4

What is the angle for a sun glint?

Answer 4

More than 52 degrees.

Question 5

What percentage is a forward overlap? In terms of aerial photography?

Answer 5

60% overlap.

Question 6

What percentage is a Side Overlap? In terms of aerial photography?

Answer 6

20 - 30% between adjacent flight lines.

Question 7

Equation for Lateral Ground Distance?

Answer 7

D = (RF) x d

Question 8

Equation for number of flight lines?

Answer 8

NL = W/(D)(Sg) + 2

W = Width
D = lateral ground distance
Sg = Side Lap gained by each successive flight - 100

Question 9

Equation for number of Photos per flight?

Answer 9

L = length of flight line
D = Distance of single photo
Og = Overlap by each successful photo - 100

4 = number of photos added.

Question 10

Equation for Total number of Photos?

Answer 10

TNP = NP X NL

NP = # of photos per flight
NL = # of flight lines.