| OBSERVING STATISTICS |
| January - June 2003 |
| |
| |
Clear Nights* |
Photometric Nights |
Number of Observation Hours |
Average Temperture (ºC) |
Average Wind Speed (m/s) |
Average Humidity (%) |
| January |
14 |
9 |
161.3 |
-2.0 |
8.0 |
77.3 |
| February |
9 |
3 |
89.5 |
-2.1 |
5.6 |
87.9 |
| March |
10 |
5 |
107.5 |
2.7 |
5.1 |
74.7 |
| April |
12 |
6 |
129. |
4.0 |
5.8 |
76.0 |
| May |
18 |
12 |
144.3 |
8.6 |
4.0 |
72.2 |
| June |
23 |
10 |
160.2 |
15.7 |
5.1 |
52.9 |
| |
| Total number of clear nights from January 1 to June 30, 2003: 86 |
| *A clear night is when the sky is 70% clear for more than 6 hours |
| Comments and suggestions to H. Frahm (frahm@caha.es) |
