| Periods | Best tilt angle without obstacles | Best tilt angle & horizontal angle with obstacles |
| January | 65˚ | −15˚, 64˚ |
| February | 55˚ | −19˚, 56˚ |
| March | 41˚ | −15˚, 42˚ |
| April | 22˚ | −20˚, 30˚ |
| May | 5˚ | 30˚, 10˚ |
| June | 0˚ | 0˚, 2˚ |
| July | 1˚ | 50˚, 10˚ |
| August | 16˚ | −7˚, 20˚ |
| September | 34˚ | −14˚, 36˚ |
| October | 51˚ | −18˚, 51˚ |
| November | 62˚ | −17˚, 63˚ |
| December | 67˚ | −13˚, 66˚ |
| One year | 36˚ | −15˚, 40˚ |