Catania Astrophysical
Observatory
The "M. G. Fracastoro" Mountain Station
Statistics of 91-cm telescope use
Statistics of observing time at the
91cm telescope
Year 1992 for 366 nights
Total hours available = 3240
Used hours = 568 17.5 %
Average used hours/night = 5.3
Nights fully used = 85 23.2 %
Nights partially used = 22 6.0 %
Nights not used = 181 49.5 %
Nights not requested = 22 6.0 %
Nights not available = 56 15.3 %
Statistics of observing time at the 91cm
telescope
Year 1993 for 365 nights
Total hours available = 3230
Used hours = 976 30.2 %
Average used hours/night = 5.9
Nights fully used = 134 36.7 %
Nights partially used = 31 8.5 %
Nights not used = 138 37.8 %
Nights not requested = 22 6.0 %
Nights not available = 40 11.0 %
Statistics of observing time at the 91cm
telescope
Year 1994 for 365 nights
Total hours available = 3230
Used hours = 1231 38.1 %
Average used hours/night = 6.2
Nights fully used = 161 44.1 %
Nights partially used = 37 10.1 %
Nights not used = 101 27.7 %
Nights not requested = 13 3.6 %
Nights not available = 53 14.5 %
Statistics of observing time at the 91cm
telescope
Year 1995 for 365 nights
Total hours available = 3230
Used hours = 1034 32.0 %
Average used hours/night = 6.1
Nights fully used = 141 38.6 %
Nights partially used = 29 7.9 %
Nights not used = 148 40.5 %
Nights not requested = 32 8.8 %
Nights not available = 15 4.1 %
Statistics of observing time at the 91cm
telescope
Year 1996 for 366 nights
Total hours available = 3230
Used hours = 624 19.3 %
Average used hours/night = 6.7
Nights fully used = 76 20.8 %
Nights partially used = 17 4.6 %
Nights not used = 142 38.9 %
Nights not requested = 20 5.5 %
Nights not available = 111 30.4 %
Statistics of observing time at the 91cm
telescope
Year 1997 for 365 nights
Total hours available = 3230
Used hours = 1551 48.0 %
Average used hours/night = 6.5
Nights fully used = 190 52.1 %
Nights partially used = 48 13.2 %
Nights not used = 84 23.0 %
Nights not requested = 13 3.6 %
Nights not available = 30 8.2 %
Statistics of observing time at the 91cm
telescope
Year 1998 for 365 nights
Total hours available = 3230
Used hours = 967
Nights fully used = 120
Nights partially used = 20
Nights not used = 129
Nights not requested = 73
Nights not available = 23
Statistics of observing time at the 91cm
telescope
Year 1999 for 365 nights
Total hours available = 3230
Used hours = 1197
Nights fully used = 167
Nights partially used = 32
Nights not used = 112
Nights not requested = 36
Nights not available = 18
Statistics of observing time at the 91cm
telescope
Year 2000 for 366 nights
Total hours available = 3230
Used hours = 1209
Nights fully used = 156
Nights partially used = 34
Nights not used = 115
Nights not requested = 30
Nights not available = 31
Statistics of observing time at the 91cm
telescope
Year 2001 for 365 nights
Total hours available = 3230
Used hours = 1349
Nights fully used = 156
Nights partially used = 38
Nights not used = 135
Nights not requested = 10
Nights not available = 26
Statistics of observing time at the 91cm
telescope
Year 2002 for 365 nights
Total hours available = 3230
Used hours = 1303
Nights fully used = 161
Nights partially used = 29
Nights not used = 136
Nights not requested = 14
Nights not available = 23
Statistics of observing time at the 91cm
telescope
Year 2003 for 365 nights
Total hours available = 3230
Used hours = 1214
Nights fully used = 164
Nights partially used = 23
Nights not used = 62
Nights not requested = 30
Nights not available = 86