LTO Report
Kitt Peak Nightly LTO Report For UT: 2025-12-10
Report Time (MST): 06:26
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) | 14.4 | 15.1 | 13.5 | 0.2 |
|---|
| Dewpoint Temperature (°C) | -20.0 | -12.0 | -35.1 | 5.4 |
|---|
| Relative humidity (%) | 9 | 15 | 1 | 3.3 |
|---|
| Wind Speed (mph) | 8.0 | 15.5 | 0.7 | 2.5 |
|---|
| Wind Direction (°) | 353 | 191 | 201 | 0.0 |
|---|
| 4M Dome Temperature (°C) | 13.7 | 14.1 | 13.2 | 0.2 |
|---|
| 4M Dome Dewpoint (°C) | -14.9 | -9.6 | -35.1 | 5.0 |
|---|
| 4M Primary Mirror (°C) | 12.4 | 13.4 | 10.4 | 0.6 |
|---|
| Weather Comments: | Clear skies with low humidity below 10% and low winds around 10mph out of the NW. |
|---|
| Recognized Hours: | ( 11.5 ) 18 degree twilight + 0.5 hr. |
Observer Information
| Telescope | Observer | Prop. # | Instrument | Detector | Seeing |
|---|
| 4 Meter | LO (on site): Elliott; SOs (remote): Williams, Escoffier | --- | DESI | N/A | 1.0 |
|---|
| WIYN | Fernandez | 2025B-300001 | NEID | N/A | 0.6 |
|---|
| 2.1 Meter | No Observer | --- | --- | N/A | N/A |
|---|
| Feed | No Observer | --- | N/A | N/A | N/A |
|---|
| 0.9 Meter | No Observer | --- | --- | 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 |
|---|
| 10.86 | Scientific Research | | 0.04 | Misc. Problems | 20:00 - 20:30 |
| 0.60 | T and E | | | | |
|
| WIYN |
|---|
| 11.47 | Scientific Research | | 0.03 | Instrument Problem | 20:30 - 21:00 |
|
| 2Meter |
|---|
| 11.5 | Shutdown | | 0 | Weather | |
|
| Feed |
|---|
| 0 | Scientific Research | | 0 | Weather | |
|
| W0_9m |
|---|
| 11.5 | Shutdown | | 0 | Weather | |
Observing Status
| 4 Meter | DESI Survey Observing: 40 mins were dedicated to some engineering in the middle of the night. Lost 3 mins to the VC caravan departure. Seeing Range: 0.8-1.4 arcsec, Median: 1.0 arcsec. |
|---|
| WIYN | NEID Q Observing. Lost .03hrs to a guider issue. No other time lost. Seeing Range: 0.55-0.8 arcsec, Median: 0.6 arcsec |
|---|
| 2.1 Meter | Not Scheduled |
|---|
| Feed | Not Scheduled |
|---|
| 0.9 Meter | Not Scheduled |
|---|
| Comments | A clear, dry night! |
|---|
| Reported by: | Amy Robertson |
|---|
Weather Plots
