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Kitt Peak Nightly LTO Report For UT: 2012-05-16

Report Time (MST): 04:06                    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)	20.9	24.2	20.0	0.9
Dewpoint Temperature (°C)	-2.5	5.2	-6.3	2.9
Relative humidity (%)	21	32	16	3.6
Wind Speed (mph)	1.8	4.0	1.0	0.7
Wind Direction (°)	0	0	0	0.0
4M Dome Teperature (°C)	20.4	22.5	19.5	0.6
4M Dome Dewpoint (°C)	-6.8	-6.0	-8.4	0.4
4M Primary Mirror (°C)	19.2	19.4	19.0	0.1

Weather Comments:	Clear and dry, with a light southerly breeze.
Recognized Hours:	( 7.5 )      18 degree twilight + 0.5 hr.

Observer Information

Telescope	Observer	Prop. #	Instrument	Detector	Seeing
4 Meter	Ciardullo, Hagen, Bridge	2012A-0282	MOSAIC	N/A	1.0
WIYN	Corson	---	N/A	N/A	N/A
2.1 Meter	Clem	2012A-0006	CFIM	N/A	1.1
Feed	No Observer	---	N/A	N/A	N/A
0.9 Meter	van Zee, Richards, Wavle	---	CFIM	S2KB	1.4

Time Usage During The Night

Telescope	Hours Used	Night's Activity		Hours Lost	Time Lost Due To:	Time of Night (MST)
4Meter
	7.5	Scientific Research
WIYN
	7.5	T and E
2Meter
	7.25	Scientific Research		0.25	Misc. Problems	21:00 - 21:30
Feed
	0.0	Scientific Research
W0_9m
	7.5	Scientific Research

Observing Status

4 Meter	Seeing between 0.9" to 1.4", holding around an arc second for most of the night. No technical problems.
WIYN	Worked on commissioning the wavefront camera. No seeing measurement made.
2.1 Meter	Had a guider "hiccup". Doug was able to come over and help solve the issue. Seeing ranged from 1.0-1.2".
Feed	Not Scheduled
0.9 Meter	No problems.

Comments	Productive night across the mountain.

Reported by:	Jenny Power

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