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Kitt Peak Nightly LTO Report For UT: 2019-10-20

Report Time (MST): 06:10                    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)	12.9	14.7	11.3	0.7
Dewpoint Temperature (°C)	-8.2	-3.9	-13.4	1.7
Relative humidity (%)	23	32	14	3.2
Wind Speed (mph)	21.0	34.3	3.7	6.5
Wind Direction (°)	219	18	302	0.4
4M Dome Temperature (°C)	15.5	16.9	14.6	0.6
4M Dome Dewpoint (°C)	-4.7	-1.5	-7.4	1.0
4M Primary Mirror (°C)	11.6	12.0	11.1	0.2

Weather Comments:	A clear and calm night with low humidity between 20-30%.
Recognized Hours:	( 10.5 )      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	Colon - remote -	2019B-0280	WHIRC	N/A	1.0
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
	10.5	T and E
WIYN
	10.5	Scientific Research
2Meter
	0.0	Scientific Research
Feed
	0.0	Scientific Research
W0_9m
	0.0	Scientific Research

Observing Status

4 Meter	T&E, no nighttime operations.
WIYN	Another productive and smooth night of WHIRC observing. Seeing Range: 1.0-1.5 arcsec, Median: 1.0 arcsec.
2.1 Meter	Not Scheduled
Feed	Not Scheduled
0.9 Meter	Not Scheduled

Comments	Another great night of observing at WIYN.

Reported by:	Amy Robertson

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