Night Report Sky Conditions

E.g., 11/12/2025
Title Conditions
ENR CTIO Blanco 4-m 2021-01-20
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Cirrus
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
2
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.30
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.30
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
ENR CTIO 1.5-m 2021-01-19
General Conditions
Temperature Max: 
15.60
Temperature Min: 
14.50
Humidity Max: 
46
Humidity Min: 
30
Wind Speed Max: 
10.00
Wind Speed Min: 
2.00
Comment: 
None.
1st Quarter
Clouds: 
Clear
Seeing Value: 
1.40
Seeing Variability: 
0.4
Seeing Source: 
Pachon Seeing Monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.90
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky: 
0
ENR CTIO 1.5-m 2021-01-18
General Conditions
Temperature Max: 
15.50
Temperature Min: 
14.60
Humidity Max: 
45
Humidity Min: 
31
Wind Speed Max: 
12.00
Wind Speed Min: 
5.00
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.70
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky: 
0
ENR CTIO 1.5-m 2021-01-17
General Conditions
Temperature Max: 
15.00
Temperature Min: 
13.40
Humidity Max: 
46
Humidity Min: 
35
Wind Speed Max: 
10.00
Wind Speed Min: 
2.00
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.90
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky: 
0
ENR CTIO 1.5-m 2021-01-16
General Conditions
Temperature Max: 
13.50
Temperature Min: 
11.60
Humidity Max: 
60
Humidity Min: 
40
Wind Speed Max: 
8.00
Wind Speed Min: 
5.00
Comment: 
- Tololo seeing monitor down; used SOAR monitor (add 0.2 to the <avg> Pachon value, just as a reference.) - 06:35 UT NOS 'glitch': for line #28 got 3 ThAr Fiber lamps BUT with a different numbering: chi210116.0000, 0001 and 0002 (renamed as 47, 48 and 49) BUT file 48 is just noise. OPTGUI numbering changed accordingly so, set it back to normal. For lines # 29 and 30 NOS status did not update unless we reload the webpage. In parallel, blue log got crazy so I did stop it. - Because of the time available, added a ThAr fiber lamp to RT Cru. Also, given that Alpha Cen B must be observed in a very specific time, I did HIP058099 twice. - At 08:30 UT Alpha Cen B unreachable (Dome OFF + LIMITS) so, wait a while and then added other 4 observations to the requested 30 integrations. - Completed last integration on Alpha cen B at 09:00 UT with the Sun at -12.2 degrees of altitude.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.90
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.90
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky: 
0
ENR CTIO 1.5-m 2021-01-15
General Conditions
Temperature Max: 
13.90
Temperature Min: 
12.30
Humidity Max: 
55
Humidity Min: 
45
Wind Speed Max: 
10.00
Wind Speed Min: 
5.00
Comment: 
- Tololo's DIMM down, using Pachon seeing monitor as a reference only. - 03:54 UT small earthquake impacts on WR6. Repeated integration. - Can't resolve on G2K001090 so, 'both' in the fiber. - Last integration on Alpha Cen B ended at 09:00 UT, with the Sun at -11.9 degrees of altitude.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.90
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky: 
0
ENR CTIO 1.5-m 2021-01-14
General Conditions
Temperature Max: 
18.00
Temperature Min: 
17.00
Humidity Max: 
30
Humidity Min: 
20
Wind Speed Max: 
15.00
Wind Speed Min: 
5.00
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.70
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky: 
0
4th Quarter
Clouds: 
Clear
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky: 
0
ENR CTIO 1.5-m 2021-01-13
General Conditions
Temperature Max: 
18.00
Temperature Min: 
16.40
Humidity Max: 
30
Humidity Min: 
20
Wind Speed Max: 
12.00
Wind Speed Min: 
0.00
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.90
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
Pachon Seeing Monitor
Sky: 
0
ENR CTIO 1.5-m 2021-01-12
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.00
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.00
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.00
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.00
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
ENR CTIO 1.5-m 2021-01-11
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.00
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.00
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.00
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.00
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky: 
0

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