Monthly time use
Month-by-month
breakdowns each year:
|
Idle
%
|
Stack
%
|
Problems
%
|
Engineering
%
|
Science
exposure
%
|
Science
overhead
%
|
Total
18d-18d
hours
|
2017 Jan
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
2017 Feb
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
2017 Mar
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
| 2017
Apr |
35.50
|
3.83
|
5.43
|
39.20
|
8.81
|
7.18
|
245.83
|
2017
May
|
33.60
|
6.05
|
4.13
|
29.10
|
15.10
|
12.00
|
223.75
|
2017
Jun
|
37.50
|
6.21
|
5.39
|
22.60
|
15.10
|
13.20
|
199.18
|
2017
Jul
|
57.70
|
2.66
|
2.05
|
21.90
|
11.30
|
4.43
|
216.47
|
2017
Aug
|
54.70
|
6.06
|
2.72
|
13.00
|
13.40
|
10.10
|
245.92
|
2017
Sep
|
61.80
|
2.75
|
11.20
|
6.74
|
10.90
|
6.58
|
268.63
|
2017
Oct
|
35.40
|
5.34
|
5.16
|
16.80
|
22.40
|
14.80
|
306.03
|
2017
Nov
|
29.70
|
5.12
|
6.59
|
19.10
|
23.60
|
15.80
|
318.48
|
2017
Dec
|
52.00
|
1.53
|
1.89
|
12.00
|
21.30
|
11.30
|
338.95
|
2017
Apr-Dec
|
44.10
|
4.28
|
4.98
|
19.30
|
16.40
|
10.90
|
2363.25
|
|
|
|
|
|
|
|
|
|
Idle
%
|
Stack
%
|
Problems
%
|
Engineering
%
|
Science
exposure
%
|
Science
overhead
%
|
Total
18d-18d
hours
|
2018
Jan
|
40.90
|
1.88
|
12.00
|
18.10
|
16.40
|
10.80
|
333.50
|
| 2018
Feb |
40.60
|
3.53
|
5.77
|
17.80
|
20.80
|
11.60
|
284.45
|
2018
Mar
|
35.30
|
3.46
|
6.70
|
38.60
|
9.99
|
5.97
|
288.48
|
| 2018
Apr |
33.60
|
4.40
|
2.04
|
28.30
|
21.40
|
10.30
|
246.43
|
2018
May
|
36.50
|
3.56
|
4.69
|
13.10
|
29.10
|
13.00
|
|
2018
Jun
|
46.00
|
5.05
|
6.45
|
12.40
|
18.60
|
11.50
|
|
2018
Jul
|
47.70
|
2.69
|
1.21
|
13.80
|
14.90
|
9.69
|
|
2018
Aug
|
45.90
|
4.43
|
7.00
|
7.78
|
23.40
|
11.40
|
|
2018
Sep
|
51.70
|
2.15
|
1.86
|
24.40
|
13.40
|
6.45
|
|
2018
Oct
|
67.10
|
2.28
|
0.98
|
13.70
|
9.60
|
6.35
|
|
| 2018
Nov |
35.60
|
3.40
|
3.86
|
7.56
|
32.70
|
16.90
|
|
2018
Dec
|
50.80
|
3.01
|
1.89
|
5.52
|
25.60
|
13.20
|
|
2018
ALL
|
44.50
|
3.18
|
4.62
|
17.50
|
19.60
|
10.60
|
3235.05
|
|
|
|
|
|
|
|
|
|
Idle
%
|
Stack
%
|
Problems
%
|
Engineering
%
|
Science
exposure
%
|
Science
overhead
%
|
|
2019
Jan
|
53.90
|
3.44
|
2.06
|
4.63
|
24.70
|
11.30
|
|
2019
Feb
|
47.90
|
2.45
|
1.68
|
8.91
|
27.40
|
11.60
|
|
2019
Mar
|
49.40
|
2.27
|
3.85
|
23.00
|
15.20
|
6.31
|
|
2019
Apr
|
34.50
|
3.67
|
3.06
|
10.50
|
35.00
|
13.30
|
|
2019
May
|
40.00
|
2.90
|
4.75
|
15.30
|
27.30
|
9.69
|
|
2019
Jun
|
48.70
|
3.43
|
0.94
|
12.90
|
23.20
|
10.80
|
|
2019
Jul
|
41.60
|
0.94
|
1.08
|
22.90
|
19.20
|
14.30
|
|
2019
Aug
|
45.80
|
2.05
|
6.07
|
7.33
|
27.60
|
11.20
|
|
2019
Sep
|
53.10
|
2.24
|
4.72
|
12.60
|
20.00
|
7.77
|
|
2019
Oct
|
34.50
|
2.41
|
3.69
|
15.90
|
30.30
|
13.10
|
|
2019
Nov
|
58.10
|
1.73
|
1.73
|
9.29
|
20.30
|
8.70
|
|
2019
Dec
|
36.30
|
3.25
|
4.30
|
7.24
|
34.20
|
14.70
|
|
2019
ALL
|
45.50
|
2.56
|
3.15
|
12.20
|
25.50
|
11.10
|
3194.92
|
|
|
|
|
|
|
|
|
|
Idle
%
|
Stack
%
|
Problems
%
|
Engineering
%
|
Science
exposure
%
|
Science
overhead
%
|
|
| 2020
Jan |
43.80
|
1.94
|
1.04
|
4.61
|
35.40
|
13.30
|
|
| 2020
Feb |
59.60
|
2.28
|
4.49
|
5.56
|
20.10
|
7.97
|
|
| 2020
Mar |
63.70
|
2.38
|
0.50
|
2.58
|
22.50
|
8.41
|
|
| 2020
Apr |
37.20
|
1.75
|
2.66
|
9.20
|
35.20
|
14.10
|
|
| 2020
May |
27.90
|
4.47
|
0.70
|
15.10
|
36.60
|
15.20
|
|
| 2020
Jun |
43.00
|
2.78
|
3.29
|
11.60
|
27.70
|
11.60
|
|
| 2020
Jul |
48.70
|
1.87
|
3.41
|
12.10
|
23.30
|
10.60
|
|
| 2020
Aug |
26.50
|
2.89
|
2.88
|
9.29
|
40.10
|
18.40
|
|
| 2020
Sep |
38.70
|
3.11
|
2.06
|
6.57
|
35.70
|
13.80
|
|
| 2020
Oct |
23.00
|
1.85
|
6.12
|
17.10
|
36.40
|
15.60
|
|
| 2020
Nov |
23.80
|
1.95
|
5.88
|
6.20
|
42.60
|
19.50
|
|
| 2020
Dec |
42.40
|
1.52
|
1.45
|
1.97
|
36.90
|
15.70
|
|
2020
ALL
|
40.00
|
2.33
|
2.90
|
8.07
|
33.00
|
13.70
|
3138.70
|
|
|
|
|
|
|
|
|
|
Idle
%
|
Stack
%
|
Problems
%
|
Engineering
%
|
Science
exposure
%
|
Science
overhead
%
|
|
| 2021
Jan |
39.1
|
4.08
|
3.43
|
3.92
|
35.4
|
14.1
|
|
| 2021
Feb |
43.6
|
2.60
|
1.29
|
5.37
|
32.9
|
14.2
|
|
| 2021
Mar |
44.1
|
3.75
|
2.12
|
8.80
|
29.2
|
12.0
|
|
| 2021
Apr |
57.1
|
2.56
|
2.00
|
3.01
|
25.0
|
10.3
|
|
| 2021
May |
54.1
|
1.56
|
0.77
|
4.15
|
28.0
|
11.4
|
|
| 2021
Jun |
42.5
|
4.12
|
1.05
|
8.99
|
30.8
|
12.6
|
|
| 2021
Jul |
47.9
|
2.46
|
2.69
|
6.75
|
28.6
|
11.7
|
|
| 2021
Aug |
51.0
|
2.24
|
0.34
|
3.70
|
30.0
|
12.7
|
|
| 2021
Sep |
39.1
|
1.60
|
2.38
|
5.60
|
35.6
|
15.8
|
|
| 2021
Oct |
22.0
|
1.29
|
2.66
|
4.49
|
50.1
|
19.5
|
|
| 2021
Nov |
38.9
|
1.97
|
2.74
|
1.43
|
40.0
|
15.0
|
|
| 2021
Dec |
44.1
|
1.67
|
2.84
|
1.15
|
35.7
|
44.1
|
|
2021
ALL
|
43.0
|
2.48
|
2.12
|
4.57
|
34.0
|
13.8
|
3144.75
|
|
|
|
|
|
|
|
|
|
Idle
%
|
Stack
%
|
Problems
%
|
Engineering
%
|
Science
exposure
%
|
Science
overhead
%
|
|
| 2022
Jan |
39.3
|
3.48
|
1.47
|
1.89
|
39.6
|
14.2
|
|
| 2022
Feb |
41.5
|
3.67
|
1.23
|
3.56
|
35.0
|
15.1
|
|
| 2022
Mar |
32.7
|
2.06
|
1.72
|
21.00
|
31.0
|
11.5
|
|
| 2022
Apr |
27.4
|
4.00
|
1.95
|
1.86
|
47.4
|
17.6
|
|
| 2022
May |
25.1
|
4.91
|
1.17
|
3.24
|
47.2
|
18.4
|
|
| 2022
Jun |
33.6
|
6.96
|
7.19
|
3.09
|
34.2
|
15.0
|
|
| 2022
Jul |
26.7
|
6.90
|
3.85
|
6.30
|
39.7
|
16.6
|
|
| 2022
Aug |
57.6
|
2.60
|
3.18
|
15.40
|
15.2
|
6.1
|
|
| 2022
Sep |
33.2
|
2.93
|
3.58
|
1.58
|
42.3
|
16.4
|
|
| 2022
Oct |
46.6
|
3.48
|
1.85
|
0.86
|
34.1
|
13.2
|
|
| 2022
Nov |
50.6
|
3.60
|
2.34
|
1.42
|
29.8
|
12.3
|
|
| 2022
Dec |
49.5
|
3.45
|
2.05
|
1.33
|
30.4
|
13.2
|
|
2022
ALL
|
39.6
|
3.85
|
2.49
|
4.98
|
35.1
|
14.0
|
3199.15
|
|
|
|
|
|
|
|
|
|
Idle
%
|
Stack
%
|
Problems
%
|
Engineering
%
|
Science
exposure
%
|
Science
overhead
%
|
|
| 2023
Jan |
45.2
|
3.54
|
1.18
|
1.01
|
35.1
|
13.9
|
|
| 2023
Feb |
58.9
|
2.49
|
2.70
|
1.82
|
23.8
|
10.2
|
|
| 2023
Mar |
51.2
|
2.00
|
4.60
|
1.52
|
28.9
|
11.8
|
|
| 2023
Apr |
20.9
|
4.11
|
2.51
|
1.60
|
51.6
|
19.3
|
|
| 2023
May |
48.2
|
3.77
|
0.73
|
4.09
|
30.5
|
12.7
|
|
| 2023
Jun |
33.3
|
5.97
|
1.22
|
0.55
|
41.0
|
18.0
|
|
| 2023
Jul |
25.3
|
8.79
|
1.26
|
1.15
|
45.7
|
17.9
|
|
| 2023
Aug |
37.9
|
5.91
|
2.51
|
1.74
|
37.2
|
14.8
|
|
| 2023
Sep |
34.1
|
3.96
|
0.88
|
0.94
|
43.3
|
16.8
|
|
| 2023
Oct |
27.7
|
1.67
|
0.88
|
30.8
|
28.1
|
10.9
|
|
| 2023
Nov |
47.9
|
1.75
|
1.53
|
6.62
|
29.1
|
13.1
|
|
| 2023
Dec |
27.7
|
4.62
|
3.19
|
1.57
|
44.2
|
18.6
|
|
2023
ALL
|
38.6
|
3.84
|
1.98
|
4.84
|
36.1
|
14.7
|
3223.98
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Civil dates of FPA take-downs and other major
engineering, their moon phases, and impacts on science:
2017 Apr 2-6 (first quarter)
2017 May 9-11 (full moon)
2018 Jul 23-27 (full moon)
2018 Aug 15-16 (full moon)
2018 Sep 24-28 (full moon)
2019 Mar 25-29 (third quarter)
2019 Jul 8-9 (first quarter)
2020 Oct 26-30 (full moon)
target impacts: one synoptic P0 HPF observation
from PSU affected
(no major downtime in 2021)
2022 Mar 14-19 (full moon) Tracker Lower X bearing replacement
2022 Aug 8-11 (full moon) FPA takedown for probe work
2023 Oct 23-Nov 1 (full moon) FPA takedown for probe work
2024 Jan 17-19(?) (first quarter) emergency FPA takedown for
ACQ camera filter stage repair
Last updated: Wed, 17 Jan 2024 16:36:43 +0000 stevenj
|
|
|
