LTO Report
Kitt Peak Nightly LTO Report For UT: 2021-04-16
Report Time (MST): 04:35
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) | 8.5 | 11.2 | 6.9 | 1.0 |
|---|
| Dewpoint Temperature (°C) | -10.4 | -5.0 | -14.4 | 2.2 |
|---|
| Relative humidity (%) | 25 | 40 | 15 | 4.1 |
|---|
| Wind Speed (mph) | 0.0 | 0.0 | 0.0 | |
|---|
| Wind Direction (°) | 0 | 0 | 0 | |
|---|
| 4M Dome Temperature (°C) | 10.2 | 13.1 | 8.4 | 0.9 |
|---|
| 4M Dome Dewpoint (°C) | -8.3 | -4.9 | -10.5 | 1.5 |
|---|
| 4M Primary Mirror (°C) | 12.0 | 13.0 | 11.3 | 0.4 |
|---|
| Weather Comments: | 20% humidity and 10mph winds all night. Winds began the night out of the south
and slowly shifted through the east and towards north as the night went on.
Mostly cloudy all night with thin annoying clouds to start out, but they got
thicker starting around 0100. |
|---|
| Recognized Hours: | ( 8.5 ) 18 degree twilight + 0.5 hr. |
Observer Information
| Telescope | Observer | Prop. # | Instrument | Detector | Seeing |
|---|
| 4 Meter | Landriau (on site), Della Costa, Gordon, Palmese | --- | DESI | N/A | 1.4 |
|---|
| WIYN | Kotulla -remote- | 2021A-0401 | ODI | N/A | 1.0 |
|---|
| 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 |
|---|
| 3.5 | Scientific Research | | 5.0 | Weather | 19:00 - 06:00 |
|
| WIYN |
|---|
| 3.5 | Scientific Research | | 5.0 | Weather | 20:00 - 05:00 |
|
| 2Meter |
|---|
| 8.5 | Shutdown | | | | |
|
| Feed |
|---|
| 0.0 | Scientific Research | | | | |
|
| W0_9m |
|---|
| 8.5 | Shutdown | | | | |
Observing Status
| 4 Meter | DESI Survey Validation. Lost 5 hours to clouds. Seeing measured between 1.1 arcseconds and 2 arcseconds |
|---|
| WIYN | No technical problems. Lost 5 hours to clouds. Seeing measured between 0.8 arcseconds and 1.4 arcseconds. |
|---|
| 2.1 Meter | Not Scheduled |
|---|
| Feed | Not Scheduled |
|---|
| 0.9 Meter | WIYN 0.9M shutdown until further notice. |
|---|
| Reported by: | Amy Robertson |
|---|
Weather Plots
