| horizontal |
[Jan]
[Feb]
[Mar]
[Apr]
[May]
[Jun]
[Jul]
[Aug]
[Sep]
[Oct]
[Nov]
[Dec] [year] |
| optimal
angle |
[Jan]
[Feb]
[Mar]
[Apr]
[May]
[Jun]
[Jul]
[Aug]
[Sep]
[Oct]
[Nov]
[Dec] [year] |
|
terrain
surface |
[Jan]
[Feb]
[Mar]
[Apr]
[May]
[Jun]
[Jul]
[Aug]
[Sep]
[Oct]
[Nov]
[Dec] [year] |