WIYN Night Log (10 May 2026 - MST)

WIYN Night Log for (10 May 2026 - MST)

Possible Observing Hours: 7.75 18° Twilight (plus 0.5 hour) – Evening: 20:31 PM, Morning: 4:15 AM (mst) [Report time: 04:36 2026-05-11]

Hours used for:
Science	7.26
Optical Tuning	0.00
Calibrations	0.47
Engineering	0.00

Unsused Hours:

Time Not Used	0.00 (total)
	Telescope Overhead	0.00
	Telescope Transition	0.00
	Instrument Overhead	0.00
	Idle Time	0.00
	Closed	0.00

Hours lost to:
Bad Weather	0.00
Technical Problems	0.00 (total)
	No Category Specified	0.00

Possible hours rounded to nearest quarter hour.
Total hours recorded will be within 0.13 hr. (7.5 min.).

Institution	NEID Q
Observer(s)	Higuera
Instrument(s)	[NEID 100% at CASS port]

Operator(s)			Dave Summers

Remarks	NEID Queue Observing. Overall a good night. No technical problems or time lost to weather.
Weather Comments	Clear all night with wind generally from the west starting at 5mph and climbing up to 25mph. Humidity hovered around 15% through the night.
Image Quality Comments	Seeing ranged from 0.69 to 1.25 arcsec with a median of 1 arcsec as estimated from NEID's Guider.

Extra Science Time	0.00 hours. (Science done during twilight. Not included in overall totals for the night)

Comments to heidi.schweiker@noirlab.edu

DIQ data

DIQ Measurements - from INFORMS - 2026-05-11 UT
UT Time	FWHM	Exposure Type	Filter	Exposure Length	Air Mass	Wind Direction	Wind Speed

Weather data

WIYN Weather Averages From: UT = 01:00 (MST=6:00 PM) To: UT = 13:00 (MST=6:00 AM)
Elements	Mean	High	Low	AvDev
Outside Air Temperature (°C)	20.3	23.6	18.6	1.1
Dome Air Teperature (°C)	22.1	28.1	0	1.6
Outside humidity (%)	14.7	18.3	10	2.2
Dome humidity (%)	15.6	19.0	0.0	2.2
Wind Speed (mph)	12.0	24.3	2.5	6.2
Wind Direction (°)	232.5	343.8	28.6	228.4

Auto-weather Entries - from INFORMS 2026-05-11 UT
UT Time	Wind Direction	Wind Speed	Outside Temerature	Dome Temperature	Outside Humidity	Dome Humidity	Sky Condition	Precipitation
00:40:16	246.4	2.4	25.2	27.5	10.2	11.5
01:40:16	286.5	6.2	23.5	27.6	10.3	11.1
02:40:16	63	8.1	21.6	23.6	11.5	12
03:40:16	275	6.8	21	22	14.6	15.8
03:47:42	252.1	5.6	20.7	22	15.1	16.3	Clear	Dry
04:47:42	263.6	7.8	20.2	21.3	17	17.9
04:49:19	280.7	8.1	20.1	21.3	17.1	18.2	Clear	Dry
05:49:19	309.4	7.7	19.5	20.8	18	18.8
05:51:56	326.6	8.7	19.3	20.7	18.1	18.8	Clear	Dry
06:51:56	320.9	14.7	19.5	20.6	17.5	18.4
07:07:11	338	13.5	19.4	20.7	17.5	18.2	Clear	Dry
08:07:11	240.6	16.4	19.6	21.3	16.5	16.8
09:07:11	68.8	22.6	19.9	21.3	14.9	16
09:14:46	91.7	22.9	19.9	21.5	14.6	15.2	Clear	Dry
10:14:46	171.9	20.8	19.9	21.3	14.6	15.5
11:14:46	212	17.9	19.3	20.4	15.9	17.2
11:15:29	80.2	19.7	19.2	20.7	16.2	17.2	Clear	Dry

WIYN weather plots from 6:00 PM to 6:00 AM (MST)

Temperature

Humidity

Wind Speed

Wind Direction