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Kitt Peak Nightly LTO Report For UT: 2015-03-03

Report Time (MST): 05:58                    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)	1.0	2.9	-0.6	0.7
Dewpoint Temperature (°C)	-5.8	-1.0	-16.3	2.4
Relative humidity (%)	45	87	23	14.1
Wind Speed (mph)	22.9	45.9	2.2	10.3
Wind Direction (°)	182	292	58	1.0
4M Dome Temperature (°C)	2.9	4.3	-0.5	1.3
4M Dome Dewpoint (°C)	1.2	4.0	-1.6	1.1
4M Primary Mirror (°C)	6.3	6.6	5.7	0.2

Weather Comments:	Fog and very windy during early hours of the night. Things calmed down after 2300, leaving mostly clear skies with moderate wind out of the south.
Recognized Hours:	( 10.25 )      18 degree twilight + 0.5 hr.

Observer Information

Telescope	Observer	Prop. #	Instrument	Detector	Seeing
4 Meter	Probst	2015A-2004	N/A	N/A	N/A
WIYN	Corson	2015A-2010	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
	10.25	T and E
WIYN
	10.25	T and E
2Meter
	0.0	Scientific Research
Feed
	0.0	Scientific Research
W0_9m
	0.0	Scientific Research

Observing Status

4 Meter	T&E. Close dome check out.
WIYN	T&E. Worked on characterizing the AZ motion.
2.1 Meter	Not Scheduled
Feed	Not Scheduled
0.9 Meter	Not Scheduled

Comments	Got some T&E done on both telescopes. Weather conditions were far better than expected.

Reported by:	Christian Soto

Weather Plots