LTO Report
Kitt Peak Nightly LTO Report For UT: 2023-03-20
Report Time (MST): 05:44
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 |
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| Air Temperature (°C) | 5.5 | 7.9 | 4.3 | 0.7 |
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| Dewpoint Temperature (°C) | -6.3 | 3.2 | -13.0 | 1.5 |
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| Relative humidity (%) | 43 | 70 | 23 | 5.6 |
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| Wind Speed (mph) | 27.6 | 43.7 | 6.8 | 5.7 |
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| Wind Direction (°) | 193 | 24 | 307 | 0.3 |
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| 4M Dome Temperature (°C) | 7.8 | 10.1 | 5.1 | 1.5 |
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| 4M Dome Dewpoint (°C) | -4.2 | 1.9 | -5.7 | 1.0 |
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| 4M Primary Mirror (°C) | 6.5 | 7.1 | 6.2 | 0.1 |
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| Weather Comments: | 40% humidity until 0500 when it quickly jumped to 90%. 15mph winds at the start of the night, slowly rose to 50mph by midnight before falling to 30mph around 0100. Mostly cloudy skies until midnight. Only partly cloudy in the second half of the night. |
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| Recognized Hours: | ( 9.75 ) 18 degree twilight + 0.5 hr. |
Observer Information
| Telescope | Observer | Prop. # | Instrument | Detector | Seeing |
|---|
| 4 Meter | LO: Landriau (on-site); SOs: Callow 1st 1/2 (remote), Bianchi 2nd 1/2 (remote) | --- | DESI | N/A | 1.6 |
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| WIYN | Patel, Golub | 2023A-0393 | NEID | N/A | 1.4 |
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| 2.1 Meter | No Observer | --- | N/A | N/A | N/A |
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| Feed | No Observer | --- | N/A | N/A | N/A |
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| 0.9 Meter | No Observer | --- | N/A | N/A | N/A |
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Time Usage During The Night
| Telescope | Hours Used | Night's Activity | | Hours Lost | Time Lost
Due To: | Time of
Night (MST) |
|---|
|
| 4Meter |
|---|
| 4.70 | Scientific Research | | 5.05 | Weather | 19:30 - 02:00 |
|
| WIYN |
|---|
| 5.06 | Scientific Research | | 4.69 | Weather | 19:30 - 00:00 |
|
| 2Meter |
|---|
| 9.75 | Shutdown | | 0 | Weather | |
|
| Feed |
|---|
| 0 | Scientific Research | | 0 | Weather | |
|
| W0_9m |
|---|
| 9.75 | Shutdown | | 0 | Weather | |
Observing Status
| 4 Meter | DESI Survey Observing. Lost 5 hours to clouds and winds. Seeing measured between 1.2 arcseconds and 1.9 arcseconds. |
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| WIYN | NEID Queue. Lost 4.69 hours to clouds. Seeing measured betweeen 1.2 arcseconds and 2 arcseconds. |
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| 2.1 Meter | Not Scheduled |
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| Feed | Not Scheduled |
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| 0.9 Meter | WIYN 0.9M shutdown until further notice. |
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| Comments | A mixed night of observing. |
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Weather Plots
