LTO Report
Kitt Peak Nightly LTO Report For UT: 2025-01-30
Report Time (MST): 04:15
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) | -3.7 | -3.3 | -4.4 | 0.2 |
|---|
| Dewpoint Temperature (°C) | -4.0 | -3.4 | -5.6 | 0.4 |
|---|
| Relative humidity (%) | 98 | 100 | 85 | 3.1 |
|---|
| Wind Speed (mph) | 5.3 | 15.6 | 1.1 | 2.9 |
|---|
| Wind Direction (°) | 241 | 237 | 351 | 0.3 |
|---|
| 4M Dome Temperature (°C) | 2.3 | 2.8 | 1.6 | 0.2 |
|---|
| 4M Dome Dewpoint (°C) | -4.4 | -3.7 | -5.3 | 0.4 |
|---|
| 4M Primary Mirror (°C) | 3.0 | 3.2 | 2.8 | 0.1 |
|---|
| Weather Comments: | Heavy cumulus all night with a few snow flurries early on and fog. Wind generally from the west and northwest 0 to 10mph. Humidity at 100% most of the night. Starting to fall at the end of the night. |
|---|
| Recognized Hours: | ( 11 ) 18 degree twilight + 0.5 hr. |
Observer Information
| Telescope | Observer | Prop. # | Instrument | Detector | Seeing |
|---|
| 4 Meter | LO: Poppett (on site); SO: Reeves (on site, all night) | --- | DESI | N/A | N/A |
|---|
| WIYN | Higuerra | 2024B-300001 | NEID | N/A | N/A |
|---|
| 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 |
|---|
| 0 | Scientific Research | | 11 | Weather | 19:00 - 06:30 |
|
| WIYN |
|---|
| 0 | Scientific Research | | 11 | Weather | 19:00 - 06:30 |
|
| 2Meter |
|---|
| 11 | Shutdown | | 0 | Weather | |
|
| Feed |
|---|
| 0 | Scientific Research | | 0 | Weather | |
|
| W0_9m |
|---|
| 11 | Shutdown | | 0 | Weather | |
Observing Status
| 4 Meter | DESI Survey Observing scheduled. Lost entire night to high humdity and threatening clouds. No seeing measurement made. |
|---|
| WIYN | NEID Queue Observing scheduled. Lost entire night to bad weather. No seeing measurement made. |
|---|
| 2.1 Meter | Not Scheduled |
|---|
| Feed | Not Scheduled |
|---|
| 0.9 Meter | WIYN 0.9M shutdown until further notice. |
|---|
| Comments | Despite the high humidity and threatening clouds, no appreciable snow accumulation tonight. ADOT not called, but please be cautious. Roads will likely be slippery. |
|---|
Weather Plots
