| OBSERVING STATISTICS |
| January - December 2002 |
| |
| |
Clear Nights* |
Photometric Nights |
Number of Observation Hours |
Average Temperture (ºC) |
Average Wind Speed (m/s) |
Average Humidity (%) |
| January |
18 |
7 |
198 |
1.7 |
4.7 |
65.7 |
| February |
18 |
8 |
194 |
3.4 |
6.0 |
54.2 |
| March |
12 |
6 |
122 |
2.1 |
4.0 |
79.6 |
| April |
11 |
5 |
109 |
3.0 |
4.9 |
82.5 |
| May |
14 |
5 |
118 |
7.2 |
5.9 |
64.6 |
| June |
14 |
7 |
108 |
14.9 |
5.9 |
51.0 |
| July |
25 |
19 |
189 |
15.6 |
4.5 |
54.5 |
| August |
21 |
17 |
196 |
14.5 |
4.6 |
62.5 |
| September |
16 |
4 |
139 |
10.7 |
5.0 |
76.3 |
| October |
18 |
10 |
197 |
8.3 |
6.0 |
69.5 |
| November |
10 |
3 |
124 |
3.0 |
7.4 |
80.2 |
| Dicember |
9 |
0 |
107 |
1.8 |
6.9 |
79.0 |
| |
| Total number of clear nights from January 1 to December 31, 2002: 186 |
| *A clear night is when the sky is 70% clear for more than 6 hours |
| Comments and suggestions to H. Frahm (frahm@caha.es) |
