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LTO Report

Kitt Peak Nightly LTO Report For UT: 2017-08-18

Report Time (MST): 04:15                    For access to all LTO-Reports go to:

4 Meter Weather Averages
From: UT = 01:00 (MST=6:00 PM) To: UT = 13:00 (MST=6:00 AM)
Elements Mean High Low AvDev
Air Temperature (°C)20.622.619.70.4
Dewpoint Temperature (°C)-2.40.7-6.91.2
Relative humidity (%)2124161.6
Wind Speed (mph)13.425.34.64.5
Wind Direction (°)2063572421.0
4M Dome Temperature (°C)20.422.019.70.3
4M Dome Dewpoint (°C)-1.61.9-5.11.1
4M Primary Mirror (°C)19.219.618.20.3

Weather Comments: Mostly clear with some thin cirrus drifting through. A 10 to 15 mph wind out of the SW. Low humidity
Recognized Hours: ( 8.5 )      18 degree twilight + 0.5 hr.

Observer Information
Telescope Observer Prop. # Instrument Detector Seeing
4 MeterHarmer - remote 2017B-0137 KOSMOS E2V 1.6
WIYNvan Zee (remote), Payne (remote) 2017B-0818 SPARSEPAK STA1 1.1
2.1 MeterNo Observer --- N/A N/A N/A
FeedNo Observer --- N/A N/A N/A
0.9 MeterNo Observer --- N/A N/A N/A

Time Usage During The Night
Telescope Hours Used Night's Activity   Hours Lost Time Lost
Due To:
Time of
Night (MST)
8.5 Scientific Research      
8.5 Scientific Research      
8.5 Maintenance      
0.0 Scientific Research      
8.5 Maintenance      

Observing Status
4 MeterNo problems. Seeing ranged from 1.2 to 2.3
WIYNNo problems. Seeing ranged from 1 to 1.2
2.1 MeterNot Scheduled
FeedNot Scheduled
0.9 MeterNot Scheduled

CommentsA trouble free night.

Reported by:Karen Butler

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