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Kitt Peak Nightly LTO Report For UT: 2026-01-01

Report Time (MST): 04:32                    For access to all LTO-Reports go to: http://www-kpno.kpno.noirlab.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)	8.4	10.7	7.1	0.6
Dewpoint Temperature (°C)	6.8	8.8	0.5	1.7
Relative humidity (%)	91	100	50	11.4
Wind Speed (mph)	26.3	36.9	4.7	5.4
Wind Direction (°)	151	65	229	0.3
4M Dome Temperature (°C)	10.7	12.1	10.1	0.5
4M Dome Dewpoint (°C)	5.9	7.6	1.2	1.9
4M Primary Mirror (°C)	9.7	11.2	7.4	1.1

Weather Comments:	Threatening clouds, fog, and occasional rain all night. Winds were about 5 mph - 35mph. Humidity was about 50% - 100%.
Recognized Hours:	( 11.5 )      18 degree twilight + 0.5 hr.

Observer Information

Telescope	Observer	Prop. #	Instrument	Detector	Seeing
4 Meter	No Observer	---	---	N/A	N/A
WIYN	Patel	2025B-300001	NEID	N/A	N/A
2.1 Meter	No Observer	---	---	N/A	N/A
Feed	No Observer	---	N/A	N/A	N/A
0.9 Meter	No Observer	---	---	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
	11.50	Shutdown		0	Weather
WIYN
	0	Scientific Research		11.5	Weather	18:30 - 06:00
2Meter
	11.5	Shutdown		0	Weather
Feed
	0	Scientific Research		0	Weather
W0_9m
	11.5	Shutdown		0	Weather

Observing Status

4 Meter	Closed for New Year's holliday, no observing.
WIYN	Full night of NEID Q observing. Lost full night to weather. No seeing measurements.
2.1 Meter	Not Scheduled
Feed	Not Scheduled
0.9 Meter	Not Scheduled

Comments	Happy New Year!

Reported by:	Thaxton Mountain

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