Night Report Sky Conditions

E.g., 09/15/2025
Title Conditions
ENR CTIO 1.5-m 2018-05-18
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.20
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.20
Seeing Variability: 
0.6
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.6
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
ENR CTIO Blanco 4-m 2018-05-18
General Conditions
Temperature Max: 
14.00
Temperature Min: 
11.00
Humidity Max: 
20
Humidity Min: 
15
Wind Speed Max: 
10.00
Wind Speed Min: 
0.00
Comment: 
None.
1st Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.40
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
1
2nd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.40
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
1
3rd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.40
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
1
4th Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
0.00
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky: 
1
ENR CTIO 1.5-m 2018-05-17
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Partially cloudy
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky : 
4
2nd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
3
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
ENR CTIO Blanco 4-m 2018-05-17
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Partially cloudy
Wind: 
Low
Seeing Value: 
1.30
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky : 
4
2nd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
3
3rd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
2
4th Quarter
Clouds: 
Clear
Seeing Value: 
1.50
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
0
ENR CTIO 1.5-m 2018-05-16
General Conditions
Temperature Max: 
13.00
Temperature Min: 
10.00
Humidity Max: 
22
Humidity Min: 
20
Wind Speed Max: 
10.00
Wind Speed Min: 
0.00
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.75
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.75
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
4th Quarter
Clouds: 
Overcast
Wind: 
Low
Seeing Value: 
0.00
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky: 
8
ENR CTIO Blanco 4-m 2018-05-16
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
2
2nd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
2
3rd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
4
4th Quarter
Clouds: 
Overcast
Wind: 
Low
Seeing Value: 
0.00
Seeing Variability: 
0
Seeing Source: 
The Telescope I used
Sky: 
7
ENR CTIO 1.5-m 2018-05-15
General Conditions
Temperature Max: 
14.00
Temperature Min: 
13.00
Humidity Max: 
22
Humidity Min: 
18
Wind Speed Max: 
22.00
Wind Speed Min: 
8.00
Comment: 
None.
1st Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
0.60
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky : 
1
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.50
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.50
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
ENR CTIO Blanco 4-m 2018-05-15
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky : 
3
2nd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
2
3rd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
2
4th Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
2
ENR CTIO 1.5-m 2018-05-14
General Conditions
Temperature Max: 
12.00
Temperature Min: 
10.00
Humidity Max: 
32
Humidity Min: 
22
Wind Speed Max: 
25.00
Wind Speed Min: 
5.00
Comment: 
Clouds thick at start of night; completely socked in at end
1st Quarter
Clouds: 
Partially cloudy
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky : 
4
2nd Quarter
Clouds: 
Thin Clouds
Wind: 
Medium
Seeing Value: 
1.00
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
8
3rd Quarter
Clouds: 
Thin Clouds
Wind: 
Medium
Seeing Value: 
1.00
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
8
4th Quarter
Clouds: 
Overcast
Wind: 
Medium
Seeing Value: 
0.00
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky: 
8
ENR CTIO Blanco 4-m 2018-05-14
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Partially cloudy
Wind: 
Low
Seeing Value: 
1.50
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky : 
4
2nd Quarter
Clouds: 
Partially cloudy
Wind: 
Low
Seeing Value: 
1.40
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
4
3rd Quarter
Clouds: 
Partially cloudy
Wind: 
Low
Seeing Value: 
1.50
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
4
4th Quarter
Clouds: 
Partially cloudy
Wind: 
Low
Seeing Value: 
1.80
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
7

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