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Kitt Peak Nightly LTO Report For UT: 2020-09-27

Report Time (MST): 07:45                    For access to all LTO-Reports go to: http://www-kpno.kpno.noao.edu/cgi-bin/ltoreport

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)	19.9	22.1	18.7	0.5
Dewpoint Temperature (°C)	2.6	5.6	1.3	0.7
Relative humidity (%)	32	42	26	2.5
Wind Speed (mph)	10.8	46.2	1.0	5.5
Wind Direction (°)	199	306	302	0.2
4M Dome Temperature (°C)	22.7	25.4	21.5	0.8
4M Dome Dewpoint (°C)	3.3	4.1	2.5	0.3
4M Primary Mirror (°C)	23.7	23.8	23.6	0.0

Weather Comments:	Clear, with humidity 25-45%. Wind from the W until about 01:00, from the SE after that, speed 5-45 mph.
Recognized Hours:	( 9.75 )      18 degree twilight + 0.5 hr.

Observer Information

Telescope	Observer	Prop. #	Instrument	Detector	Seeing
4 Meter	No Observer	---	N/A	N/A	N/A
WIYN	No Observer	2020B-0915	N/A	N/A	N/A
2.1 Meter	No Observer	---	N/A	N/A	N/A
Feed	No Observer	---	N/A	N/A	N/A
0.9 Meter	No 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)
4Meter
	9.75	Shutdown
WIYN
	9.75	Shutdown
2Meter
	9.75	Shutdown
Feed
	0.0	Scientific Research
W0_9m
	9.75	Shutdown

Observing Status

4 Meter	Mayall shutdown until further notice.
WIYN	WIYN shutdown until further notice.
2.1 Meter	Not Scheduled
Feed	Not Scheduled
0.9 Meter	WIYN 0.9M shutdown until further notice.

Comments	Observatory closed until further notice.

Reported by:	Doug Williams

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