LTO Report
Kitt Peak Nightly LTO Report For UT: 2025-05-22
Report Time (MST): 04:06
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 |
|---|
| Air Temperature (°C) | 19.6 | 23.1 | 18.3 | 0.9 |
|---|
| Dewpoint Temperature (°C) | -10.8 | -7.5 | -12.8 | 0.9 |
|---|
| Relative humidity (%) | 12 | 16 | 9 | 1.2 |
|---|
| Wind Speed (mph) | 14.6 | 31.0 | 6.7 | 4.9 |
|---|
| Wind Direction (°) | 281 | 134 | 305 | 0.6 |
|---|
| 4M Dome Temperature (°C) | 18.8 | 21.8 | 17.4 | 1.0 |
|---|
| 4M Dome Dewpoint (°C) | -7.6 | -6.0 | -8.8 | 0.5 |
|---|
| 4M Primary Mirror (°C) | 16.4 | 16.9 | 14.4 | 0.4 |
|---|
| Weather Comments: | 10% humidity and clear skies all night. 30mph winds out of the west at the start
of the night. Winds slowly fell to 10mph by morning. |
|---|
| Recognized Hours: | ( 7.25 ) 18 degree twilight + 0.5 hr. |
Observer Information
| Telescope | Observer | Prop. # | Instrument | Detector | Seeing |
|---|
| 4 Meter | LO: Landriau (on site); SOs: Turner (1st half, on site); Ravoux (2nd half, remote) | --- | DESI | N/A | 1.1 |
|---|
| WIYN | Ward (1st half, remote), Fernandez (2nd half, on site) | 2025A-978365/2025A-000000 | NEID/HYDRA | N/A | 0.8 |
|---|
| 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 |
|---|
| 7.20 | Scientific Research | | 0.05 | Misc. Problems | 22:00 - 22:30 |
|
| WIYN |
|---|
| 4.40 | Scientific Research | | 1.00 | Weather | 20:30 - 21:30 |
| | | | 0.05 | Instrument Problem | 21:30 - 23:30 |
| | | | 1.80 | Computer Problem | 02:00 - 02:30 |
|
| 2Meter |
|---|
| 7.25 | Shutdown | | 0 | Weather | |
|
| Feed |
|---|
| 0 | Scientific Research | | 0 | Weather | |
|
| W0_9m |
|---|
| 7.25 | Shutdown | | 0 | Weather | |
Observing Status
| 4 Meter | DESI Survey Observing. Paused for 3 minutes waiting for the VC Caravan. Seeing measured between 0.9 arcseconds and 1.7 arcseconds. |
|---|
| WIYN | First half Hydra. Second half NEID Queue. Lost the first hour to high dust. Lost 1.8 hours to a wiyn-ips computer crash. Lost 3 minutes in the second half NEID guider. Seeing estiamted with the FOPs between 1 arcsecond and 1.5 arcseconds in the first half. Seeing measured with NEID between 0.5 arcseconds and 1 arcseconds in the second half |
|---|
| 2.1 Meter | Not Scheduled |
|---|
| Feed | Not Scheduled |
|---|
| 0.9 Meter | Not Scheduled |
|---|
Weather Plots
