Anola
Clear Sky Chart
History

This sumarizes the distribution of each different forecast outcome for the Anola clear sky chart from 2005-11-05 to 2018-02-22.

This page is a summary of past forecasts. Even though it's based only on forecasts, some people use these pages as clue to a site's climate. But climate data based on actual observation should be preferred (if you can find it!).

Cloud, Transparency and Seeing forecasts are summarized individually. But because good observing conditions require a combination of minimum cloud cover, transparency and seeing, the individual forecast summaries can be difficult to interpret. The observing conditions section counts the combinations of conditions needed for common types of astronomical observation.

Observing Conditions

The following tables count the occurrence of the combinations of forecast and darkness conditions needed for different observations. Conditions are rated by by what percentage of the hours the observation would likely be attempted are usable.
Observation TypeMinimum conditions for hour to be usableOut of hours
Clear of CloudsTransparencySeeingSky Brightness
Planetary:50%(no limit)Average(no limit)Nighttime Hours
Deep Sky:70%Average(no limit)5.9Nighttime Hours
CCD Imaging:70%Below AveragePoor(no limit)Nighttime Hours

Percentages are of nighttime hours per month, or per year, when a particular observing conditions was met. Deep Sky percentages never exceed 50% because the moon is up half the time. Deep sky percentages are much lower for charts at high latitudes because of fewer dark hours in the summer.

Overall

PlanetaryData
Pts
Deep Sky
Max 60%
Data
Pts
Both Planetary and Deep Sky
Max 60%
Data
Pts
Either Planetary or Deep SkyData
Pts
CCD ImagingData
Pts
Night
37%
17033
12%
48937
7%
16989
41%
16989
20%
34997

By Month

MonthDays of MonthPlanetaryData
Pts
Deep Sky
Max 60%
Data
Pts
Both Planetary and Deep Sky
Max 60%
Data
Pts
Either Planetary or Deep SkyData
Pts
CCD ImagingData
Pts
January1st to 15thNight
29%
975
8%
2910
6%
970
32%
970
13%
2289
January16th to endNight
28%
1040
9%
2993
5%
1040
32%
1040
13%
2400
February1st to 15thNight
41%
951
12%
2522
7%
950
45%
950
21%
1867
February16th to endNight
36%
803
13%
2121
6%
803
41%
803
18%
1606
March1st to 15thNight
34%
621
14%
2061
10%
621
39%
621
18%
1439
March16th to endNight
38%
576
16%
2112
15%
576
46%
576
19%
1373
April1st to 15thNight
42%
539
17%
1717
15%
539
50%
539
25%
1078
April16th to endNight
39%
540
16%
1620
11%
540
44%
540
23%
1097
May1st to 15thNight
33%
540
12%
1485
4%
540
36%
540
23%
1049
May16th to endNight
39%
563
11%
1311
5%
561
42%
561
32%
907
June1st to 15thNight
42%
540
4%
1260
3%
540
44%
540
31%
881
June16th to endNight
51%
540
3%
1260
3%
540
52%
540
31%
875
July1st to 15thNight
59%
510
6%
1190
5%
510
61%
510
44%
749
July16th to endNight
61%
564
14%
1239
8%
531
62%
531
48%
748
August1st to 15thNight
60%
539
16%
1561
8%
536
63%
536
36%
918
August16th to endNight
57%
573
21%
1719
18%
573
62%
573
40%
948
September1st to 15thNight
52%
540
16%
1802
16%
540
57%
540
31%
1032
September16th to endNight
42%
537
19%
1980
18%
537
48%
537
22%
1230
October1st to 15thNight
33%
696
14%
2136
10%
696
37%
696
20%
1476
October16th to endNight
31%
906
14%
2442
6%
906
36%
906
19%
1777
November1st to 15thNight
24%
950
9%
2659
3%
950
28%
950
15%
2045
November16th to endNight
22%
975
9%
2792
5%
975
27%
975
12%
2242
December1st to 15thNight
29%
975
6%
2925
4%
975
31%
975
12%
2370
December16th to endNight
24%
1040
8%
3120
5%
1040
28%
1040
9%
2601

Individual Forecasts

The length of each colored bar in the "occurrence of each Forecast" column is proportional to the number of times the chart forecast that color. The percentages are of the total number of hours per month, or per year, with a particular forecast. The colors as the same as those used in clear sky charts.

Note: Transparency probabilities are only counted for those hours that have 30% or less cloud cover. Seeing probabilities are only counted for those hours that have 80% or less cloud cover. If that's too tricky, try Observing Conditions instead.

Overall

Occurrence of each ForecastData
Points
Cloud CoverDay
13%9%47%6%35%5%5%6%32%
49345
Night
11%10%47%6%35%5%5%6%32%
49082
Cloud CoverDay
13%9%47%6%35%5%5%7%32%
49355
Night
11%10%47%6%35%5%5%6%32%
49085
Cloud CoverDay
13%9%47%6%35%5%5%7%32%
49356
Night
11%10%47%6%35%5%5%6%32%
49086
Cloud CoverDay
13%9%47%6%35%5%5%7%32%
49354
Night
12%10%47%6%35%5%5%6%32%
49086
TransparencyDay
50%5%14%21%6%
49008
Night
51%5%14%21%7%
48937
SeeingDay
16%8%28%28%14%3
6755
Night
16%6%28%33%13%1
17037

By Month

Percentage Cloud Cover NE (2006-)
Color Meanings:
Overcast 90% covered 80% covered 70% covered 60% covered 50% covered 40% covered 30% covered 20% covered 10% covered Clear
MonthDays in MonthOccurrence of each ForecastData
Points
January1st to 15thDay
9%12%6%10%7%5%6%6%8%7%19%
1358
16th to endDay
11%15%8%11%10%5%7%7%7%5%10%
1580
February1st to 15thDay
7%9%5%9%7%6%9%7%6%8%23%
1671
16th to endDay
9%11%5%11%8%5%8%7%6%421%
1510
March1st to 15thDay
11%14%6%9%7%45%5%46%23%
1888
16th to endDay
12%11%46%8%35%5%5%7%27%
2112
April1st to 15thDay
11%9%37%5%3445%6%38%
2231
16th to endDay
13%8%35%425%5%6%6%36%
2340
May1st to 15thDay
20%10%46%423346%32%
2463
16th to endDay
20%6%35%5%24447%34%
2803
June1st to 15thDay
18%7%37%6%35%5%5%6%30%
2700
16th to endDay
15%6%35%5%35%5%6%8%33%
2700
July1st to 15thDay
10%4244346%7%9%42%
2700
16th to endDay
9%42443446%9%46%
2845
August1st to 15thDay
11%5%15%5%346%6%8%41%
2388
16th to endDay
12%424424448%48%
2483
September1st to 15thDay
12%6%25%5%23447%44%
2156
16th to endDay
17%6%2442445%7%39%
1980
October1st to 15thDay
16%12%38%6%34435%31%
1811
16th to endDay
17%13%47%6%36%5%5%6%24%
1779
November1st to 15thDay
14%14%5%7%6%24346%29%
1528
16th to endDay
13%14%7%11%11%45%32420%
1498
December1st to 15thDay
10%17%7%11%10%47%6%6%412%
1365
16th to endDay
13%14%7%13%7%5%5%36%415%
1456
January1st to 15thNight
7%13%6%10%9%6%7%6%6%6%18%
2910
16th to endNight
11%13%7%10%8%5%6%7%6%6%17%
2993
February1st to 15thNight
7%10%47%7%48%7%5%6%28%
2519
16th to endNight
8%11%5%9%8%5%7%5%45%28%
2121
March1st to 15thNight
10%11%5%8%6%34346%33%
2049
16th to endNight
14%9%37%42446%7%34%
2112
April1st to 15thNight
11%7%35%5%35%5%6%6%40%
1717
16th to endNight
13%9%36%5%35%445%37%
1620
May1st to 15thNight
18%8%35%423446%36%
1485
16th to endNight
16%6%3432336%7%41%
1310
June1st to 15thNight
15%5%25%5%2445%8%40%
1260
16th to endNight
10%5%35%5%35%5%5%7%41%
1260
July1st to 15thNight
6%31432446%9%51%
1260
16th to endNight
5%32332446%9%54%
1323
August1st to 15thNight
8%413435%5%6%5%50%
1568
16th to endNight
7%32432435%8%55%
1719
September1st to 15thNight
11%414333346%50%
1802
16th to endNight
17%425%425%446%41%
1980
October1st to 15thNight
16%9%36%5%2445%7%33%
2136
16th to endNight
16%10%46%5%3446%6%30%
2442
November1st to 15thNight
14%14%6%8%5%3444428%
2659
16th to endNight
13%13%6%11%8%35%445%22%
2792
December1st to 15thNight
8%13%8%12%9%5%6%5%5%6%16%
2925
16th to endNight
13%15%7%13%9%5%5%6%45%13%
3120

Percentage Cloud Cover NW (2006-)
Color Meanings:
Overcast 90% covered 80% covered 70% covered 60% covered 50% covered 40% covered 30% covered 20% covered 10% covered Clear
MonthDays in MonthOccurrence of each ForecastData
Points
January1st to 15thDay
9%11%6%10%8%5%6%7%8%7%19%
1359
16th to endDay
11%15%8%10%10%5%8%7%7%410%
1580
February1st to 15thDay
7%9%48%8%6%8%7%7%8%23%
1671
16th to endDay
9%11%5%11%8%5%8%7%6%5%20%
1510
March1st to 15thDay
11%13%7%9%7%46%5%37%22%
1899
16th to endDay
11%12%47%8%35%6%47%27%
2110
April1st to 15thDay
11%9%37%5%34446%38%
2231
16th to endDay
13%8%36%5%25%5%5%7%36%
2340
May1st to 15thDay
20%11%36%42435%5%32%
2463
16th to endDay
19%7%35%5%25%45%7%34%
2803
June1st to 15thDay
17%7%36%6%45%5%5%6%30%
2700
16th to endDay
15%6%35%5%35%5%6%8%33%
2700
July1st to 15thDay
10%4244346%6%10%41%
2700
16th to endDay
9%4245%3446%9%46%
2845
August1st to 15thDay
10%5%15%435%5%6%8%41%
2388
16th to endDay
11%424414448%48%
2483
September1st to 15thDay
11%6%35%424447%44%
2156
16th to endDay
17%6%2442345%7%39%
1980
October1st to 15thDay
16%11%37%7%34435%31%
1811
16th to endDay
16%13%38%5%36%5%6%6%24%
1779
November1st to 15thDay
14%14%6%7%6%14346%29%
1528
16th to endDay
13%14%6%12%11%4433420%
1498
December1st to 15thDay
10%17%7%12%10%5%6%7%5%5%12%
1365
16th to endDay
14%13%8%13%7%5%5%46%5%15%
1456
January1st to 15thNight
7%14%6%10%9%6%7%6%6%6%18%
2910
16th to endNight
10%13%7%9%8%46%7%6%6%17%
2993
February1st to 15thNight
7%10%48%7%48%6%6%6%28%
2512
16th to endNight
8%12%5%9%8%46%5%46%28%
2121
March1st to 15thNight
10%12%5%8%7%34446%33%
2061
16th to endNight
14%10%37%43436%7%34%
2110
April1st to 15thNight
11%7%35%5%3446%6%40%
1717
16th to endNight
12%9%35%5%45%436%37%
1620
May1st to 15thNight
18%8%35%5%23446%36%
1484
16th to endNight
16%6%3432336%8%41%
1311
June1st to 15thNight
15%5%25%5%2446%7%40%
1260
16th to endNight
10%6%26%5%35%5%5%7%41%
1260
July1st to 15thNight
6%31433446%9%51%
1260
16th to endNight
6%31331446%9%54%
1323
August1st to 15thNight
8%413435%5%5%6%51%
1568
16th to endNight
7%31441335%8%55%
1719
September1st to 15thNight
10%414324447%50%
1802
16th to endNight
17%4244345%46%41%
1980
October1st to 15thNight
16%8%36%5%3445%7%33%
2136
16th to endNight
16%10%36%5%35%45%6%30%
2442
November1st to 15thNight
14%14%6%8%6%3444427%
2659
16th to endNight
13%13%6%11%8%35%345%23%
2792
December1st to 15thNight
8%13%8%12%10%5%5%6%5%6%16%
2925
16th to endNight
13%15%6%13%9%5%5%5%46%13%
3120

Percentage Cloud Cover SW (2006-)
Color Meanings:
Overcast 90% covered 80% covered 70% covered 60% covered 50% covered 40% covered 30% covered 20% covered 10% covered Clear
MonthDays in MonthOccurrence of each ForecastData
Points
January1st to 15thDay
9%12%6%10%7%5%6%6%8%7%18%
1358
16th to endDay
11%15%8%10%10%48%7%7%5%10%
1580
February1st to 15thDay
7%9%5%9%7%6%9%7%6%8%23%
1671
16th to endDay
8%11%5%11%8%5%8%7%6%421%
1510
March1st to 15thDay
11%14%6%9%7%45%5%47%22%
1899
16th to endDay
11%12%47%8%35%6%5%7%27%
2112
April1st to 15thDay
11%9%37%5%3435%6%38%
2231
16th to endDay
13%8%45%5%25%46%6%36%
2340
May1st to 15thDay
19%11%46%423346%32%
2463
16th to endDay
19%7%35%5%25%45%6%34%
2803
June1st to 15thDay
17%7%36%6%45%45%6%30%
2700
16th to endDay
15%7%35%6%35%5%6%8%33%
2700
July1st to 15thDay
10%4244346%6%9%41%
2700
16th to endDay
9%42443446%8%46%
2845
August1st to 15thDay
11%5%15%5%345%6%8%41%
2388
16th to endDay
12%424324448%48%
2483
September1st to 15thDay
12%6%25%5%23447%44%
2156
16th to endDay
17%6%2442445%7%39%
1980
October1st to 15thDay
16%12%38%6%34435%32%
1811
16th to endDay
17%13%47%6%36%5%5%6%24%
1779
November1st to 15thDay
14%14%5%7%6%24347%29%
1528
16th to endDay
13%14%6%11%11%5%5%33420%
1498
December1st to 15thDay
10%17%7%11%10%5%7%6%6%412%
1365
16th to endDay
13%13%8%13%7%5%5%36%415%
1456
January1st to 15thNight
7%14%6%10%9%6%7%6%6%6%18%
2910
16th to endNight
11%13%7%10%8%5%6%7%6%6%17%
2993
February1st to 15thNight
7%10%5%7%8%48%7%5%6%28%
2512
16th to endNight
8%12%5%9%9%46%5%45%28%
2121
March1st to 15thNight
10%11%5%8%6%44346%33%
2061
16th to endNight
14%9%36%42446%7%34%
2112
April1st to 15thNight
11%7%35%5%35%5%6%5%40%
1717
16th to endNight
13%9%36%5%45%436%37%
1620
May1st to 15thNight
18%9%36%5%23446%36%
1484
16th to endNight
16%6%2432336%7%41%
1310
June1st to 15thNight
15%5%25%5%245%5%7%40%
1260
16th to endNight
11%5%35%5%35%5%5%7%41%
1260
July1st to 15thNight
6%31432446%9%51%
1260
16th to endNight
5%32342446%9%54%
1323
August1st to 15thNight
8%414435%5%6%6%50%
1568
16th to endNight
7%41432435%8%55%
1719
September1st to 15thNight
11%414334346%50%
1802
16th to endNight
17%425%425%446%41%
1980
October1st to 15thNight
16%8%36%5%3445%7%33%
2136
16th to endNight
16%10%46%5%3445%6%30%
2442
November1st to 15thNight
14%14%7%7%5%3444428%
2659
16th to endNight
13%13%6%11%8%35%445%22%
2792
December1st to 15thNight
8%13%8%12%9%5%6%5%5%6%16%
2925
16th to endNight
13%15%7%13%9%5%5%6%45%13%
3120

Percentage Cloud Cover SE (2006-)
Color Meanings:
Overcast 90% covered 80% covered 70% covered 60% covered 50% covered 40% covered 30% covered 20% covered 10% covered Clear
MonthDays in MonthOccurrence of each ForecastData
Points
January1st to 15thDay
9%11%7%9%8%47%7%7%7%18%
1358
16th to endDay
11%15%8%9%10%5%7%7%7%5%10%
1580
February1st to 15thDay
8%8%49%8%6%9%7%6%8%22%
1671
16th to endDay
9%11%5%11%8%5%7%7%6%421%
1510
March1st to 15thDay
12%13%6%8%8%46%5%5%6%23%
1899
16th to endDay
12%11%47%7%445%5%7%27%
2110
April1st to 15thDay
12%8%36%6%35%346%39%
2231
16th to endDay
13%9%35%5%35%46%6%36%
2340
May1st to 15thDay
20%10%36%424345%33%
2463
16th to endDay
20%7%25%4345%47%34%
2803
June1st to 15thDay
18%7%36%5%46%45%6%30%
2700
16th to endDay
15%6%36%5%35%5%5%8%33%
2700
July1st to 15thDay
10%5%244345%7%9%42%
2700
16th to endDay
10%4245%3446%9%45%
2845
August1st to 15thDay
11%5%25%5%35%5%6%8%40%
2388
16th to endDay
12%42432345%7%48%
2483
September1st to 15thDay
13%5%35%423447%44%
2156
16th to endDay
18%6%244235%5%7%39%
1980
October1st to 15thDay
17%12%36%7%33345%31%
1811
16th to endDay
17%14%47%5%35%5%6%6%24%
1779
November1st to 15thDay
15%14%5%6%7%33446%29%
1528
16th to endDay
13%14%7%11%11%5%4425%19%
1498
December1st to 15thDay
10%16%7%11%11%47%5%6%5%12%
1365
16th to endDay
14%14%7%13%8%45%5%5%6%14%
1456
January1st to 15thNight
7%14%6%10%9%5%7%6%6%6%18%
2910
16th to endNight
11%13%6%9%8%5%6%7%6%6%17%
2993
February1st to 15thNight
7%10%48%7%5%8%6%5%7%27%
2512
16th to endNight
8%11%5%8%9%46%45%5%28%
2121
March1st to 15thNight
10%11%5%8%6%34446%33%
2061
16th to endNight
15%9%46%42446%7%34%
2112
April1st to 15thNight
11%7%45%5%25%5%6%6%40%
1717
16th to endNight
13%9%35%5%45%445%37%
1620
May1st to 15thNight
18%9%35%42345%6%36%
1484
16th to endNight
16%6%25%32336%7%41%
1310
June1st to 15thNight
15%5%345%2445%8%40%
1260
16th to endNight
11%425%5%25%6%5%7%42%
1260
July1st to 15thNight
6%3143245%6%8%52%
1260
16th to endNight
6%32342436%8%54%
1323
August1st to 15thNight
8%413425%5%6%6%50%
1568
16th to endNight
7%31432435%8%54%
1719
September1st to 15thNight
11%414433346%50%
1802
16th to endNight
17%5%34425%446%41%
1980
October1st to 15thNight
17%9%25%6%2445%7%33%
2136
16th to endNight
17%11%36%6%3446%5%30%
2442
November1st to 15thNight
15%14%6%8%5%3444427%
2659
16th to endNight
13%13%7%11%8%35%445%22%
2792
December1st to 15thNight
8%14%7%12%10%5%5%5%5%7%16%
2925
16th to endNight
13%15%7%13%9%5%5%5%5%5%13%
3120

Transparency (when cloud cover <= 30%)
Color Meanings:
Too cloudy to forecast Poor Below Average Average Above average Transparent
MonthDays in MonthOccurrence of each ForecastData
Points
January1st to 15thDay
59%5%13%16%3
1359
16th to endDay
70%5%7%13%2
1580
February1st to 15thDay
55%5%15%17%6%
1672
16th to endDay
60%5%11%15%5%
1510
March1st to 15thDay
59%7%12%15%5%
1899
16th to endDay
54%5%16%16%5%
2112
April1st to 15thDay
46%412%25%10%
2231
16th to endDay
46%414%22%10%2
2340
May1st to 15thDay
53%49%24%8%
2463
16th to endDay
48%5%10%21%12%1
2807
June1st to 15thDay
52%5%11%21%8%
2700
16th to endDay
47%5%19%21%5%
2700
July1st to 15thDay
35%6%16%32%8%
2541
16th to endDay
35%5%19%27%10%
2666
August1st to 15thDay
38%6%19%28%6%
2372
16th to endDay
34%417%34%8%
2483
September1st to 15thDay
39%5%18%28%7%
2156
16th to endDay
43%5%16%29%4
1980
October1st to 15thDay
55%314%20%5%
1811
16th to endDay
57%6%18%14%3
1779
November1st to 15thDay
55%5%17%16%31
1528
16th to endDay
68%412%11%2
1498
December1st to 15thDay
70%5%13%9%1
1365
16th to endDay
68%39%13%3
1456
January1st to 15thNight
62%5%12%14%4
2910
16th to endNight
63%5%11%16%2
2993
February1st to 15thNight
51%6%15%18%7%
2522
16th to endNight
56%313%19%6%
2121
March1st to 15thNight
51%5%13%21%8%
2061
16th to endNight
47%414%24%8%
2112
April1st to 15thNight
41%312%22%16%2
1717
16th to endNight
47%39%23%14%1
1620
May1st to 15thNight
48%5%11%24%9%
1485
16th to endNight
40%412%23%15%2
1311
June1st to 15thNight
41%5%15%24%10%1
1260
16th to endNight
39%7%21%22%7%1
1260
July1st to 15thNight
26%7%18%35%10%1
1190
16th to endNight
26%319%34%13%1
1239
August1st to 15thNight
31%6%18%33%8%1
1561
16th to endNight
27%419%34%13%
1719
September1st to 15thNight
35%318%30%10%1
1802
16th to endNight
42%415%26%9%
1980
October1st to 15thNight
49%416%22%7%
2136
16th to endNight
53%316%21%3
2442
November1st to 15thNight
58%5%15%14%5%
2659
16th to endNight
64%5%13%12%3
2792
December1st to 15thNight
65%5%14%12%1
2925
16th to endNight
69%5%9%12%3
3120

Seeing (when cloud cover <= 80%)
Color Meanings:
Too cloudy to forecast Bad 1/5 Poor 2/5 Average 3/5 Good 4/5 Excellent 5/5
MonthDays in MonthOccurrence of each ForecastData
Points
January1st to 15thDay
7%7%30%40%14%
135
16th to endDay
20%5%25%37%9%2
144
February1st to 15thDay
8%11%41%31%7%
135
16th to endDay
16%342%32%7%
100
March1st to 15thDay
14%8%27%32%16%
90
16th to endDay
11%7%35%25%14%6%
96
April1st to 15thDay
13%11%33%30%10%1
350
16th to endDay
18%8%31%29%11%2
450
May1st to 15thDay
25%11%26%23%11%1
468
16th to endDay
23%8%22%28%13%2
517
June1st to 15thDay
20%10%28%24%11%4
495
16th to endDay
18%7%26%27%14%5%
495
July1st to 15thDay
12%6%29%26%19%6%
475
16th to endDay
11%7%27%24%20%7%
515
August1st to 15thDay
9%5%27%27%20%8%
493
16th to endDay
12%6%24%33%18%4
523
September1st to 15thDay
10%7%28%34%17%1
311
16th to endDay
20%11%35%18%10%2
135
October1st to 15thDay
19%12%28%31%5%2
135
16th to endDay
31%329%25%7%1
144
November1st to 15thDay
18%7%26%36%9%1
135
16th to endDay
28%8%37%19%5%
135
December1st to 15thDay
22%425%29%14%2
135
16th to endDay
14%429%33%13%4
144
January1st to 15thNight
14%7%30%31%13%2
975
16th to endNight
16%7%31%35%8%
1040
February1st to 15thNight
11%5%26%36%16%2
955
16th to endNight
13%429%34%14%3
803
March1st to 15thNight
15%8%30%28%15%1
621
16th to endNight
19%7%25%27%17%3
576
April1st to 15thNight
15%5%28%35%12%1
539
16th to endNight
17%6%28%35%10%
540
May1st to 15thNight
23%5%30%29%10%
540
16th to endNight
19%6%29%32%11%
563
June1st to 15thNight
17%5%27%30%17%
540
16th to endNight
13%5%22%39%18%1
540
July1st to 15thNight
8%323%39%22%1
510
16th to endNight
7%320%40%24%2
564
August1st to 15thNight
11%120%43%20%2
539
16th to endNight
9%5%23%36%23%1
573
September1st to 15thNight
13%325%36%18%2
540
16th to endNight
19%5%27%33%13%
537
October1st to 15thNight
22%6%30%32%7%
696
16th to endNight
24%6%29%30%8%1
906
November1st to 15thNight
22%7%34%24%9%1
950
16th to endNight
20%8%35%27%6%1
975
December1st to 15thNight
15%5%29%35%12%1
975
16th to endNight
19%7%29%28%13%1
1040
Page generated at 2018-02-23 10:21:32. Version ac04

Copyright 2018 A. Danko


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