UNIVERSITY OF CALIFORNIA OBSERVATORIES / LICK OBSERVATORY |
| Percentage of Available Hours Worked per Month
compared to Number of Hours Worked per Month for the years 1990-1998 Shane 3-Meter Telescope |
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| Notes: |
| "Available Hours" is defined as the period between 12-degree
twilight and 12-degree dawn.
"Hours Worked" is defined as time actually spent with the 3-meter telescope open to the sky, beginning with the first setting of the night and ending when the dome is closed. In some cases, the time worked exceeds 100% of the time available, reflecting work begun before 12-degree twilight and/or continued after 12-degree dawn. These graphs do not include data for August-December 1996. |