| OBSERVING STATISTICS |
| January - June 2004 |
| |
| |
Clear Nights* |
Photometric Nights |
Number of Observation Hours |
Average Temperture (ºC) |
Average Wind Speed (m/s) |
Average Humidity (%) |
| January |
15 |
6 |
179.2 |
1.7 |
7.1 |
67.7 |
| February |
13 |
9 |
151.9 |
1.4 |
5.2 |
71.2 |
| March |
11 |
4 |
116.8 |
1.3 |
5.9 |
78.4 |
| April |
15 |
6 |
129.3 |
2.8 |
5.4 |
77.4 |
| May |
2 |
0 |
78.2 |
3.7 |
5.0 |
92.8 |
| June |
19 |
7 |
164.0 |
13.9 |
4.3 |
64.0 |
| |
| Total number of clear nights from January 1 to June 30, 2004: 75 |
| *A clear night is when the sky is 70% clear for more than 6 hours |
| Comments and suggestions to U. Thiele (uthiele@caha.es) |
