| OBSERVING STATISTICS |
| July - December 2003 |
| |
| |
Clear Nights* |
Photometric Nights |
Number of Observation Hours |
Average Temperture (ºC) |
Average Wind Speed (m/s) |
Average Humidity (%) |
| July |
24 |
19 |
182.8 |
18.4 |
5.3 |
42.4 |
| August |
22 |
17 |
192.4 |
17.3 |
5.1 |
49.0 |
| September |
16 |
2 |
153.6 |
11.9 |
5.0 |
67.9 |
| October |
4 |
4 |
66.4 |
5.9 |
5.9 |
87.5 |
| November |
8 |
1 |
97.9 |
3.3 |
6.4 |
79.1 |
| December |
9 |
4 |
107.9 |
0.1 |
5.3 |
78.4 |
| |
| Total number of clear nights from July 1 to December 31, 2003: 83 |
| *A clear night is when the sky is 70% clear for more than 6 hours |
| Comments and suggestions to H. Frahm (frahm@caha.es) |
