The fault data base allows a more detailed overview of the faults that are reported. In Table 2 the number of faults and total time lost as a function of the system and kind of fault is presented together with the overall numbers for the last period (28).
Syst/Type | Soft | Elec | Optics | Mech | Others | Total | P28 | |||||||
Telescope | 5 | 00:20 | 6 | 01:30 | 1 | 00:00 | 4 | 00:20 | 1 | 00:00 | 17 | 02:10 | 13 | 03:05 |
Building | 0 | 2 | 00:00 | 0 | 6 | 00:00 | 0 | 8 | 00:00 | 12 | 03:40 | |||
Computers | 16 | 00:25 | 2 | 00:00 | 0 | 0 | 1 | 00:00 | 19 | 00:25 | 11 | 00:40 | ||
ALFOSC | 2 | 00:15 | 0 | 6 | 00:30 | 1 | 00:00 | 1 | 00:00 | 10 | 00:45 | 18 | 21:10 | |
MOSCA | 0 | 0 | 0 | 0 | 0 | 0 | 00:00 | 0 | 00:00 | |||||
NOTCam | 3 | 00:10 | 5 | 00:30 | 2 | 00:30 | 2 | 13:00 | 1 | 00:00 | 13 | 14:10 | 2 | 00:05 |
StanCam | 4 | 00:15 | 0 | 0 | 0 | 1 | 00:15 | 5 | 00:30 | 1 | 00:10 | |||
Others | 0 | 3 | 00:30 | 1 | 00:30 | 1 | 00:00 | 0 | 5 | 01:00 | 6 | 01:25 | ||
Total | 30 | 01:25 | 18 | 02:30 | 10 | 01:30 | 14 | 13:20 | 5 | 00:15 | 77 | 19:00 | 63 | 30:15 |
P28 | 29 | 05:00 | 17 | 24:35 | 0 | 00:00 | 13 | 00:40 | 4 | 00:00 | 63 | 30:15 | ||
For each system-type category the total number of faults and total time lost are given |
One conclusion that can be drawn from the information in Table 2 is that beyond the problem with the filter wheel in NOTCam there were no other significant problems causing downtime.