Performance Statistics for SDSS Observing Operations |
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Updated 6/15/06 |
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Dark Time |
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2001 |
2002 |
2003 |
2004 |
2005 |
2006 |
|
Category |
Baseline |
Aug-01 |
Sep-01 |
Oct-01 |
Nov-01 |
Dec-01 |
Jan-02 |
Feb-02 |
Mar-02 |
Apr-02 |
May-02 |
Jun-02 |
Jul-02 |
Aug-02 |
Sep-02 |
Oct-02 |
Nov-02 |
Dec-02 |
Jan-03 |
Feb-03 |
Mar-03 |
Apr-03 |
May-03 |
Jun-03 |
Jul-03 |
Aug-03 |
Aug-03 |
Sep-03 |
Oct-03 |
Nov-03 |
Dec-03 |
Jan-04 |
Feb-04 |
Mar-04 |
Apr-04 |
May-04 |
Jun-04 |
Jul-04 |
Aug-04 |
Sep-04 |
Oct-04 |
Nov-04 |
Dec-04 |
Jan-05 |
Feb-05 |
Mar-05 |
Apr-05 |
May-05 |
Jun-05 |
Jul-05 |
Jul/Aug-05 |
Aug-05 |
Sep-05 |
Oct-05 |
Nov-05 |
Dec-05 |
Jan-06 |
Feb-06 |
Mar-06 |
Apr-06 |
May-06 |
Jun-06 |
Jul-06 |
Jul-06 |
Aug-06 |
Sep-06 |
Oct-06 |
Nov-06 |
Dec-06 |
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Total Time |
|
101:23 |
116:11 |
98:22 |
148:47 |
157:20 |
161:21 |
152:40 |
144:02 |
123:40 |
100:11 |
92:34 |
61:12 |
Summer Shutdown |
104:35 |
88:26 |
131:32 |
142:56 |
137:48 |
140:14 |
140:15 |
126:35 |
110:52 |
98:57 |
92:29 |
Summer Shutdown |
85:44 |
114:44:00 |
135:55 |
144:10 |
150:50 |
147:06 |
140:37 |
127:55 |
115:09 |
99:21 |
96:10 |
Summer Shutdown |
117:15:00 |
108:22:00 |
136:37 |
144:42 |
149:42 |
145:57 |
138:52 |
131:40 |
116:07 |
101:18 |
95:41 |
81:35:00 |
Summer Shutdown |
131:01:00 |
143:29:00 |
151:06 |
154:04 |
152:26 |
140:13 |
129:29 |
115:35 |
102:07 |
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Summer Shutdown |
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Imaging fraction |
0.24 |
0.21 |
0.43 |
0.13 |
0.44 |
0.38 |
0.31 |
0.13 |
0.24 |
0.02 |
0.22 |
0.15 |
0.00 |
0.12 |
0.60 |
0.34 |
0.26 |
0.07 |
0.32 |
0.44 |
0.43 |
0.43 |
0.34 |
0.36 |
0.01 |
0.54 |
0.38 |
0.23 |
0.12 |
0.31 |
0.13 |
0.24 |
0.38 |
0.34 |
0.35 |
0.05 |
0.48 |
0.46 |
0.34 |
0.56 |
0.18 |
0.37 |
0.24 |
0.13 |
0.39 |
0.71 |
0.04 |
0.56 |
0.94 |
0.81 |
0.53 |
0.12 |
0.11 |
0.00 |
0.03 |
0.19 |
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Spectro fraction |
0.66 |
0.73 |
0.48 |
0.81 |
0.51 |
0.56 |
0.58 |
0.76 |
0.64 |
0.93 |
0.74 |
0.76 |
0.97 |
0.78 |
0.34 |
0.55 |
0.65 |
0.77 |
0.60 |
0.52 |
0.54 |
0.54 |
0.60 |
0.54 |
0.90 |
0.30 |
0.52 |
0.46 |
0.71 |
0.25 |
0.68 |
0.69 |
0.48 |
0.55 |
0.55 |
0.80 |
0.35 |
0.43 |
0.60 |
0.4 |
0.74 |
0.59 |
0.68 |
0.82 |
0.54 |
0.25 |
0.61 |
0.24 |
0.03 |
0.16 |
0.39 |
0.82 |
0.82 |
0.96 |
0.90 |
0.73 |
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Weather |
0.50 |
0.31 |
0.53 |
0.88 |
0.50 |
0.52 |
0.55 |
0.46 |
0.44 |
0.64 |
0.53 |
0.52 |
0.37 |
0.40 |
0.47 |
0.58 |
0.34 |
0.64 |
0.63 |
0.29 |
0.58 |
0.80 |
0.49 |
0.70 |
0.29 |
0.63 |
0.77 |
0.56 |
0.68 |
0.27 |
0.51 |
0.51 |
0.67 |
0.62 |
0.59 |
0.40 |
0.74 |
0.51 |
0.34 |
0.56 |
0.47 |
0.13 |
0.57 |
0.59 |
0.64 |
0.66 |
0.59 |
0.42 |
0.39 |
0.87 |
0.71 |
0.76 |
0.70 |
0.45 |
0.44 |
0.63 |
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System uptime |
0.90 |
0.89 |
0.98 |
0.93 |
0.89 |
0.92 |
0.93 |
0.99 |
0.95 |
0.99 |
0.90 |
0.98 |
0.96 |
0.98 |
1.00 |
0.98 |
0.98 |
0.98 |
0.91 |
0.99 |
1.00 |
0.99 |
0.98 |
0.92 |
0.99 |
0.92 |
1.00 |
0.97 |
0.84 |
1.00 |
0.96 |
0.98 |
0.99 |
0.94 |
0.98 |
0.98 |
0.95 |
0.89 |
0.91 |
0.97 |
0.98 |
0.92 |
0.99 |
0.98 |
0.97 |
1.00 |
0.99 |
0.92 |
1.00 |
0.92 |
0.95 |
0.98 |
0.95 |
1.00 |
1.00 |
0.96 |
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Imaging efficiency |
0.86 |
0.62 |
0.67 |
0.63 |
0.82 |
0.83 |
0.84 |
0.74 |
0.87 |
0.68 |
0.83 |
0.84 |
|
0.88 |
0.90 |
0.90 |
0.85 |
0.84 |
0.80 |
0.84 |
0.90 |
0.90 |
0.79 |
0.86 |
|
0.80 |
0.90 |
0.82 |
0.83 |
0.85 |
0.73 |
0.72 |
0.84 |
0.85 |
0.83 |
0.75 |
0.88 |
0.82 |
0.91 |
0.8 |
0.89 |
0.84 |
0.94 |
0.87 |
0.83 |
0.79 |
0.60 |
0.84 |
0.84 |
0.93 |
0.91 |
0.85 |
0.82 |
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0.60 |
0.74 |
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Spectro efficiency |
0.65 |
0.60 |
0.59 |
0.57 |
0.60 |
0.66 |
0.60 |
0.66 |
0.58 |
0.63 |
0.63 |
0.58 |
0.65 |
0.67 |
0.56 |
0.64 |
0.66 |
0.63 |
0.61 |
0.57 |
0.60 |
0.60 |
0.55 |
0.61 |
0.60 |
0.55 |
0.70 |
0.70 |
0.7 |
0.65 |
0.69 |
0.66 |
0.67 |
0.69 |
0.66 |
0.70 |
0.72 |
0.78 |
0.70 |
0.69 |
0.74 |
0.68 |
0.70 |
0.71 |
0.69 |
0.63 |
0.71 |
0.53 |
0.57 |
0.65 |
0.75 |
0.77 |
0.75 |
0.74 |
0.74 |
0.69 |
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Operations efficiency |
0.90 |
0.93 |
0.93 |
0.96 |
0.96 |
0.94 |
0.93 |
0.93 |
0.89 |
0.95 |
0.97 |
0.92 |
0.97 |
0.96 |
0.94 |
0.97 |
0.97 |
0.96 |
0.96 |
0.96 |
0.96 |
0.97 |
0.95 |
0.97 |
0.93 |
0.95 |
0.97 |
0.96 |
0.94 |
0.96 |
0.96 |
0.96 |
0.97 |
0.96 |
0.96 |
0.92 |
0.97 |
0.95 |
0.96 |
0.96 |
0.96 |
0.96 |
0.96 |
0.95 |
0.97 |
0.97 |
0.96 |
0.97 |
0.99 |
0.99 |
0.98 |
0.96 |
0.96 |
0.96 |
0.96 |
0.97 |
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Hours lost to problems |
|
10:50 |
2:22 |
6:51 |
16:36 |
12:40 |
11:10 |
2:02 |
6:51 |
1:22 |
9:47 |
1:54 |
2:40 |
1:37 |
0:00 |
2:10 |
2:49 |
2:59 |
13:10 |
2:06 |
0:10 |
1:18 |
1:56 |
7:17 |
0:46 |
9:33 |
0:40 |
3:57 |
24:03 |
0:00 |
5:17 |
2:23 |
0:36 |
6:25 |
1:31 |
2:33 |
4:57 |
15:11 |
13:07 |
3:58 |
2:44 |
11:03 |
1:48 |
2:53 |
3:11 |
0:24 |
1:03 |
9:59 |
0:24 |
11:45 |
8:17 |
2:46 |
7:23 |
0:18 |
0:19 |
3:37 |
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Hours lost to weather |
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68:33 |
55:05 |
12:12 |
73:14 |
73:58 |
69:41 |
83:03 |
78:12 |
43:55 |
42:04 |
44:21 |
38:28 |
63:05 |
46:33 |
55:40 |
94:54 |
49:49 |
51:14 |
98:54 |
52:50 |
22:11 |
50:18 |
22:17 |
60:30 |
42:49 |
31:53 |
63:53 |
39:31 |
107:58 |
68:50 |
62:33 |
37:52 |
37:28 |
38:30 |
69:50 |
27:57 |
57:02 |
84:08 |
65:32 |
77:39 |
110:53 |
55:42 |
47:11 |
36:53 |
32:55 |
33:43 |
69:38 |
87:29 |
20:14 |
38:10 |
36:40 |
41:13 |
70:58 |
64:39 |
37:32 |
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Dark Time Baseline Table
(for plotting purposes) |
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2001 |
2002 |
2002 |
2004 |
2005 |
2005 |
|
Category |
Baseline |
Aug-01 |
Sep |
Oct |
Nov |
Dec |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
|
Sep |
Oct |
Nov |
Dec |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Jul/Aug-05 |
Aug |
Sep |
Oct |
Nov |
Dec |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Jul/Aug-05 |
Aug |
Sep |
Oct |
Nov |
Dec |
|
Total Time |
|
0:00 |
0:00 |
0:00 |
0:00 |
0:00 |
0:00 |
0:00 |
0:00 |
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0:00 |
0:00 |
0:00 |
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0:00 |
0:00 |
0:00 |
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0:00 |
0:00 |
0:00 |
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0:00 |
0:00 |
0:00 |
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|
Imaging fraction |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
|
Spectro fraction |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
0.66 |
|
Weather |
0.50 |
0.50 |
0.50 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.50 |
0.50 |
0.50 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.50 |
0.50 |
0.50 |
0.50 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.50 |
0.50 |
0.50 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.50 |
0.50 |
0.50 |
0.50 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.60 |
0.50 |
0.50 |
0.50 |
0.50 |
0.60 |
0.60 |
0.60 |
|
System uptime |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
|
Imaging efficiency |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
0.86 |
|
Spectro efficiency |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
0.65 |
|
Operations efficiency |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
0.90 |
|
Hours lost to problems |
|
0:00 |
0:00 |
0:00 |
0:00 |
0:00 |
0:00 |
0:00 |
0:00 |
|
|
0:00 |
0:00 |
0:00 |
|
|
0:00 |
0:00 |
0:00 |
|
|
0:00 |
0:00 |
0:00 |
|
|
0:00 |
0:00 |
0:00 |
|
|
|
Hours lost to weather |
|
0:00 |
0:00 |
0:00 |
0:00 |
0:00 |
0:00 |
0:00 |
0:00 |
|
|
|
|
|
|
|
|
|
0:00 |
0:00 |
0:00 |
|
|
|
|
|
|
|
|
|
|
0:00 |
0:00 |
0:00 |
|
|
|
|
|
|
|
|
|
0:00 |
0:00 |
0:00 |
|
|
|
|
|
|
|
|
|
|
0:00 |
0:00 |
0:00 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dark + Gray Time |
|
|
|
|
|
|
2001 |
2002 |
2003 |
2004 |
2005 |
2006 |
|
Category |
Baseline |
Aug-01 |
Sep-01 |
Oct-01 |
Nov-01 |
Dec-01 |
Jan-02 |
Feb-02 |
Mar-02 |
Apr-02 |
May-02 |
Jun-02 |
Jul-02 |
Aug-02 |
Sep-02 |
Oct-02 |
Nov-02 |
Dec-02 |
Jan-03 |
Feb-03 |
Mar-03 |
Apr-03 |
May-03 |
Jun-03 |
Jul-03 |
Aug-03 |
Aug-03 |
Sep-03 |
Oct-03 |
Nov-03 |
Dec-03 |
Jan-04 |
Feb-04 |
Mar-04 |
Apr-04 |
May-04 |
Jun-04 |
Jul-04 |
Aug-04 |
Sep-04 |
Oct-04 |
Nov-04 |
Dec-04 |
Jan-05 |
Feb-05 |
Mar-05 |
Apr-05 |
May-05 |
Jun-05 |
Jul-05 |
Jul/Aug-05 |
Aug-05 |
Sep-05 |
Oct-05 |
Nov-05 |
Dec-05 |
Jan-06 |
Feb-06 |
Mar-06 |
Apr-06 |
May-06 |
Jun-06 |
Jul-06 |
Jul-06 |
Aug-06 |
Sep-06 |
Oct-06 |
Nov-06 |
Dec-06 |
|
Total Time |
|
141:18 |
161:17 |
130:34 |
214:11 |
221:09 |
228:48 |
205:59 |
191:34 |
157:59 |
136:45 |
121:17 |
70:56 |
Summer Shutdown |
136:37 |
116:34 |
177:35 |
197:49 |
176:19 |
179:39 |
185:43 |
166:59 |
132:53 |
125:44 |
120:24 |
Summer Shutdown |
98:11 |
147:42:00 |
203:07 |
216:32 |
232:24 |
215:41 |
201:46 |
174:12 |
153:06 |
125:12 |
126:25 |
Summer Shutdown |
183:08:00 |
133:44:00 |
197:05 |
222:34 |
231:45 |
219:02 |
207:56 |
195:19 |
160:45 |
131:39 |
128:59 |
96:52:00 |
Summer Shutdown |
201:28:00 |
226:54:00 |
228:31 |
240:16 |
231:55 |
202:19 |
187:38 |
159:43 |
139:22 |
|
|
|
Summer Shutdown |
|
|
|
|
|
Imaging fraction |
0.24 |
0.17 |
0.31 |
0.12 |
0.34 |
0.31 |
0.28 |
0.12 |
0.20 |
0.02 |
0.16 |
0.12 |
0.00 |
0.09 |
0.56 |
0.27 |
0.17 |
0.08 |
0.37 |
0.33 |
0.38 |
0.42 |
0.33 |
0.36 |
0.01 |
0.46 |
0.29 |
0.17 |
0.1 |
0.17 |
0.11 |
0.23 |
0.34 |
0.30 |
0.34 |
0.10 |
0.45 |
0.54 |
0.32 |
0.42 |
0.13 |
0.32 |
0.17 |
0.10 |
0.34 |
0.63 |
0.04 |
0.54 |
1.00 |
0.84 |
0.50 |
0.1 |
0.09 |
0.00 |
0.03 |
0.17 |
|
|
|
|
Spectro fraction |
0.66 |
0.70 |
0.59 |
0.84 |
0.64 |
0.64 |
0.65 |
0.78 |
0.70 |
0.93 |
0.78 |
0.81 |
0.97 |
0.82 |
0.42 |
0.65 |
0.77 |
0.79 |
0.61 |
0.64 |
0.61 |
0.58 |
0.66 |
0.58 |
0.91 |
0.44 |
0.59 |
0.57 |
0.73 |
0.40 |
0.68 |
0.65 |
0.48 |
0.57 |
0.57 |
0.73 |
0.39 |
0.40 |
0.63 |
0.51 |
0.72 |
0.68 |
0.75 |
0.81 |
0.59 |
0.37 |
0.59 |
0.19 |
0.02 |
0.12 |
0.39 |
0.84 |
0.78 |
0.96 |
0.88 |
0.74 |
|
|
|
|
Weather |
0.50 |
0.30 |
0.59 |
0.82 |
0.49 |
0.49 |
0.47 |
0.42 |
0.47 |
0.57 |
0.59 |
0.57 |
0.35 |
0.40 |
0.41 |
0.59 |
0.44 |
0.58 |
0.57 |
0.32 |
0.55 |
0.78 |
0.47 |
0.64 |
0.30 |
0.63 |
0.73 |
0.54 |
0.61 |
0.34 |
0.49 |
0.46 |
0.62 |
0.61 |
0.52 |
0.39 |
0.75 |
0.47 |
0.38 |
0.54 |
0.49 |
0.12 |
0.57 |
0.59 |
0.63 |
0.65 |
0.59 |
0.52 |
0.53 |
0.86 |
0.76 |
0.71 |
0.69 |
0.38 |
0.42 |
0.59 |
|
|
|
|
System uptime |
0.90 |
0.90 |
0.98 |
0.94 |
0.89 |
0.92 |
0.95 |
0.99 |
0.92 |
0.99 |
0.93 |
0.97 |
0.96 |
0.99 |
1.00 |
0.99 |
0.98 |
0.98 |
0.87 |
0.96 |
0.99 |
0.99 |
0.98 |
0.94 |
0.98 |
0.91 |
1.00 |
0.98 |
0.83 |
1.00 |
0.97 |
0.99 |
1.00 |
0.95 |
0.96 |
0.98 |
0.96 |
0.92 |
0.93 |
0.98 |
0.98 |
0.94 |
0.98 |
0.98 |
0.98 |
0.99 |
0.99 |
0.95 |
1.00 |
0.93 |
0.93 |
0.96 |
0.93 |
1.00 |
0.99 |
0.97 |
|
|
|
|
Imaging efficiency |
0.86 |
0.62 |
0.67 |
0.63 |
0.82 |
0.83 |
0.84 |
0.74 |
0.87 |
0.68 |
0.83 |
0.84 |
|
0.88 |
0.90 |
0.90 |
0.85 |
0.84 |
0.80 |
0.84 |
0.90 |
0.90 |
0.79 |
0.86 |
|
0.80 |
0.90 |
0.82 |
0.83 |
0.06 |
0.73 |
0.72 |
0.84 |
0.85 |
0.83 |
0.75 |
0.88 |
0.82 |
0.91 |
0.8 |
0.89 |
0.84 |
0.94 |
0.87 |
0.83 |
0.79 |
0.60 |
0.84 |
0.84 |
0.93 |
0.91 |
0.85 |
0.82 |
|
0.60 |
0.74 |
|
|
|
|
Spectro efficiency |
0.65 |
0.61 |
0.63 |
0.61 |
0.60 |
0.67 |
0.61 |
0.64 |
0.61 |
0.65 |
0.64 |
0.65 |
0.65 |
0.65 |
0.63 |
0.63 |
0.6 |
0.63 |
0.64 |
0.58 |
0.59 |
0.56 |
0.56 |
0.61 |
0.60 |
0.59 |
0.70 |
0.69 |
0.7 |
0.65 |
0.66 |
0.64 |
0.67 |
0.66 |
0.65 |
0.69 |
0.75 |
0.78 |
0.70 |
0.72 |
0.73 |
0.69 |
0.63 |
0.71 |
0.70 |
0.67 |
0.71 |
0.49 |
0.34 |
0.62 |
0.74 |
0.76 |
0.75 |
0.75 |
0.74 |
0.68 |
|
|
|
|
Operations efficiency |
0.90 |
0.94 |
0.94 |
0.96 |
0.96 |
0.93 |
0.92 |
0.92 |
0.90 |
0.95 |
0.95 |
0.92 |
0.97 |
0.96 |
0.94 |
0.96 |
0.95 |
0.95 |
0.96 |
0.95 |
0.96 |
0.97 |
0.94 |
0.96 |
0.94 |
0.95 |
0.97 |
0.95 |
0.93 |
0.96 |
0.96 |
0.96 |
0.96 |
0.96 |
0.94 |
0.93 |
0.97 |
0.95 |
0.96 |
0.96 |
0.97 |
0.96 |
0.96 |
0.95 |
0.96 |
0.97 |
0.96 |
0.98 |
0.99 |
0.99 |
0.98 |
0.96 |
0.96 |
0.96 |
0.96 |
0.95 |
|
|
|
|
Hours lost to problems |
|
13:29 |
3:08 |
7:34 |
22:30 |
16:59 |
12:00 |
2:21 |
15:24 |
1:55 |
9:55 |
4:11 |
2:40 |
1:43 |
0:00 |
2:21 |
4:16 |
2:59 |
23:58 |
3:53 |
1:24 |
1:18 |
2:30 |
7:17 |
1:37 |
12:51 |
0:40 |
3:57 |
39:02 |
0:00 |
6:08 |
2:23 |
8:38 |
6:25 |
4:26 |
4:26 |
4:57 |
15:19 |
14:41 |
4:52 |
3:33 |
11:34 |
3:17 |
3:38 |
3:11 |
0:41 |
1:03 |
10:20 |
0:24 |
17:06 |
17:46 |
9:06 |
14:23 |
0:18 |
1:35 |
3:45 |
|
|
|
|
|
|
Hours lost to weather |
|
97:18 |
66:24 |
24:03 |
106:58 |
111:06 |
117:24 |
118:58 |
92:42 |
67:34 |
50:57 |
51:08 |
45:47 |
82:05 |
68:14 |
72:57 |
110:29 |
73:59 |
72:46 |
125:45 |
75:00 |
29:38 |
66:20 |
37:59 |
68:12 |
54:20 |
54:13 |
98:36 |
74:32 |
3435:36 |
103:27 |
94:24 |
57:32 |
48:28 |
56:36 |
112:08 |
33:37 |
93:36 |
126:38 |
105:38 |
111:36 |
172:15 |
83:34 |
65:09 |
48:27 |
45:33 |
39:42 |
90:10 |
105:58 |
31:30 |
50:16 |
64:08 |
59:08 |
116:30 |
92:28 |
57:04 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Median
Time for Spectroscopic Observing Activities |
|
|
|
|
|
|
|
|
|
|
|
|
2001 |
2002 |
2003 |
2004 |
2005 |
2005 |
|
Category* |
Baseline |
Aug-01 |
Sep-01 |
Oct-01 |
Nov-01 |
Dec-01 |
Jan-02 |
Feb-02 |
Mar-02 |
Apr-02 |
May-02 |
Jun-02 |
Jul-02 |
Aug-02 |
Sep-02 |
Oct-02 |
Nov-02 |
Dec-02 |
Jan-03 |
Feb-03 |
Mar-03 |
Apr-03 |
May-03 |
Jun-03 |
Jul-03 |
Aug-03 |
Aug-03 |
Sep-03 |
Oct-03 |
Nov-03 |
Dec-03 |
Jan-04 |
Feb-04 |
Mar-04 |
Apr-04 |
May-04 |
Jun-04 |
Jul-04 |
Aug-04 |
Sep-04 |
Oct-04 |
Nov-04 |
Dec-04 |
Jan-05 |
Feb-05 |
Mar-05 |
Apr-05 |
May-05 |
Jun-05 |
Jul-05 |
Jul/Aug-05 |
Aug-05 |
Sep-05 |
Oct-05 |
Nov-05 |
Dec-05 |
Jan-06 |
Feb-06 |
Mar-06 |
Apr-06 |
May-06 |
Jun-06 |
Jul-06 |
Jul-06 |
Aug-06 |
Sep-06 |
Oct-06 |
Nov-06 |
Dec-06 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Summer Shutdown |
|
|
|
|
|
|
|
|
|
|
|
Summer Shutdown |
|
|
|
|
|
|
|
|
|
|
|
Summer Shutdown |
|
|
|
|
|
|
|
|
|
|
|
|
Summer Shutdown |
|
|
|
|
|
|
|
|
|
|
|
|
Summer Shutdown |
|
|
|
|
|
|
Cartridge change |
10 |
7 |
7 |
6 |
6 |
6 |
6 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
4 |
5 |
4 |
4 |
5 |
7 |
4 |
4 |
4 |
4 |
8 |
4 |
4 |
4 |
4 |
7 |
4 |
4 |
5 |
5 |
5 |
5.00 |
5.00 |
5.00 |
4.00 |
4.00 |
4.00 |
4.00 |
5.00 |
0.00 |
8.00 |
6.00 |
5 |
5.00 |
5.00 |
5.00 |
5.00 |
|
|
|
|
Setup |
10 |
14 |
14 |
14 |
15 |
13 |
12 |
10 |
12 |
8 |
10 |
13 |
14 |
11 |
14 |
15 |
15 |
13 |
11 |
15 |
14 |
10 |
13 |
15 |
14 |
13 |
11 |
15 |
13 |
13 |
13 |
14 |
14 |
13 |
12 |
12 |
11 |
12 |
10 |
12 |
11.00 |
10.00 |
9.00 |
9.00 |
11.00 |
10.00 |
11.00 |
5.00 |
18.00 |
7.00 |
10.00 |
10 |
10.00 |
8.00 |
9.00 |
11.00 |
|
|
|
|
Calibration |
5 |
12 |
12 |
12 |
12 |
12 |
14 |
12 |
15 |
12 |
12 |
12 |
14 |
14 |
14 |
13 |
13 |
13 |
13 |
18 |
13 |
13 |
13 |
13 |
13 |
13 |
6 |
6 |
7 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6.00 |
6.00 |
6.00 |
6.00 |
6.00 |
6.00 |
6.00 |
5.00 |
5.00 |
5.00 |
5.00 |
5 |
5.00 |
5.00 |
5.00 |
5.00 |
|
|
|
|
CCD readout (assumed) |
0 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3.00 |
3.00 |
3.00 |
3.00 |
3.00 |
3.00 |
3.00 |
3.00 |
3.00 |
3.00 |
3.00 |
3 |
3.00 |
3.00 |
3.00 |
3.00 |
3.00 |
3.00 |
3.00 |
3.00 |
3.00 |
3.00 |
3.00 |
3 |
|
Total overhead |
25 |
36 |
36 |
35 |
36 |
34 |
35 |
30 |
35 |
28 |
30 |
33 |
36 |
33 |
36 |
36 |
36 |
34 |
32 |
40 |
35 |
30 |
33 |
36 |
37 |
33 |
24 |
28 |
27 |
30 |
26 |
27 |
27 |
26 |
28 |
25 |
24 |
26 |
24 |
26 |
25 |
24 |
23 |
22 |
24 |
23 |
24 |
18 |
26 |
10 |
13 |
23 |
23 |
21 |
22 |
24 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Science exposure (assumed) |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45.00 |
45.00 |
45.00 |
45.00 |
45.00 |
45.00 |
45.00 |
45.00 |
45.00 |
45.00 |
45.00 |
45 |
45.00 |
45.00 |
45.00 |
45.00 |
45.00 |
45.00 |
45.00 |
45.00 |
45.00 |
45.00 |
45.00 |
45 |
|
Total time per plate |
70 |
81 |
81 |
80 |
81 |
79 |
80 |
75 |
80 |
73 |
75 |
78 |
81 |
78 |
81 |
81 |
81 |
79 |
77 |
85 |
80 |
75 |
78 |
81 |
82 |
78 |
69 |
73 |
72 |
75 |
71 |
72 |
72 |
71 |
73 |
70 |
69 |
71 |
69 |
71 |
70 |
69 |
68 |
67 |
69 |
68 |
69 |
63 |
71 |
55 |
58 |
68 |
68 |
66 |
67 |
69 |
48 |
48 |
48 |
48 |
48 |
48 |
48 |
48 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Spectroscopic Efficiency |
0.64 |
0.56 |
0.56 |
0.56 |
0.56 |
0.57 |
0.56 |
0.60 |
0.56 |
0.62 |
0.60 |
0.58 |
0.56 |
0.58 |
0.56 |
0.56 |
0.56 |
0.57 |
0.58 |
0.53 |
0.56 |
0.60 |
0.58 |
0.56 |
0.55 |
0.58 |
0.65 |
0.62 |
0.62 |
0.60 |
0.63 |
0.62 |
0.62 |
0.63 |
0.62 |
0.64 |
0.65 |
0.63 |
0.65 |
0.63 |
0.64 |
0.65 |
0.66 |
0.67 |
0.65 |
0.66 |
0.65 |
|
0.71 |
0.63 |
0.66 |
0.65 |
0.66 |
0.66 |
0.68 |
0.67 |
0.65 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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*Time shown
in minutes |
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Median Time Baseline
Table (for plotting purposes) |
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2001 |
2002 |
2002 |
2004 |
2005 |
2005 |
|
Category* |
Baseline |
Aug-01 |
Sep-01 |
Oct-01 |
Nov-01 |
Dec-01 |
Jan-02 |
Feb-02 |
Mar-02 |
Apr-02 |
May-02 |
Jun-02 |
Jul-02 |
Aug-02 |
Sep-02 |
Oct-02 |
Nov-02 |
Dec-02 |
Jan-02 |
Feb-02 |
Mar-02 |
Apr-02 |
May-02 |
Jun-02 |
Jul-02 |
Aug-02 |
|
Sep-02 |
Oct-02 |
Nov-02 |
Dec-02 |
Jan-02 |
Feb-02 |
Mar-02 |
Apr-02 |
May-02 |
Jun-02 |
Jul-02 |
Aug-02 |
Sep-02 |
Oct-02 |
Nov-02 |
Dec-02 |
Jan-02 |
Feb-02 |
Mar-02 |
Apr-02 |
May-02 |
Jun-02 |
Jul-02 |
Jul/Aug |
Aug-02 |
Sep-02 |
Oct-02 |
Nov-02 |
Dec-02 |
Jan-02 |
Feb-02 |
Mar-02 |
Apr-02 |
May-02 |
Jun-02 |
Jul-02 |
Jul/Aug |
Aug-02 |
Sep-02 |
Oct-02 |
Nov-02 |
Dec-02 |
|
Cartridge change |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
|
Setup |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
|
Calibration |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
|
CCD readout (assumed) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Total overhead |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
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|
Science exposure (assumed) |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
|
Total time per plate |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
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Spectroscopic Efficiency |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
0.64 |
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*Time shown in minutes |
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Printable PDF version |
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