LTO Report
Kitt Peak Nightly LTO Report For UT: 2025-11-30
Report Time (MST): 06:10
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) | 9.7 | 11.2 | 8.5 | 0.6 |
|---|
| Dewpoint Temperature (°C) | -15.0 | -5.7 | -21.1 | 3.2 |
|---|
| Relative humidity (%) | 17 | 34 | 9 | 4.9 |
|---|
| Wind Speed (mph) | 17.7 | 24.7 | 5.3 | 4.0 |
|---|
| Wind Direction (°) | 214 | 255 | 26 | 0.9 |
|---|
| 4M Dome Temperature (°C) | 9.7 | 11.0 | 8.7 | 0.6 |
|---|
| 4M Dome Dewpoint (°C) | -10.9 | -4.6 | -15.5 | 2.0 |
|---|
| 4M Primary Mirror (°C) | 11.0 | 11.4 | 10.6 | 0.2 |
|---|
| Weather Comments: | Cirrus passing through all night. Humidity ranged between 9-35%. Wind out of the
SE slowly shifting to W at 5-25 mph. |
|---|
| Recognized Hours: | ( 11.5 ) 18 degree twilight + 0.5 hr. |
Observer Information
| Telescope | Observer | Prop. # | Instrument | Detector | Seeing |
|---|
| 4 Meter | LO: Gontcho A Gontcho/Khan (on-site); SO: Khan (on-site) | --- | DESI | N/A | 0.9 |
|---|
| WIYN | Higuera | 2025B-300001 | NEID | N/A | 1.2 |
|---|
| 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 |
|---|
| 11.05 | Scientific Research | | 0.40 | Instrument Problem | 22:00 - 23:00 |
| | | | 0.05 | Misc. Problems | 20:30 - 21:00 |
|
| WIYN |
|---|
| 10.94 | Scientific Research | | 0.14 | Weather | 05:30 - 06:00 |
| | | | 0.42 | Tele-Mechanical Problem | 21:30 - 22:00 |
|
| 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 tonight. Lost about 3 minutes waiting for the VC caravan to depart around 20:25. Then, starting at 22:15 we lost just over 24 minutes when the DESI Instrument Control Interlock broke. Aid was required from Klaus, who surprisingly, had not seen this particular failure before. Seeing ranged from 0.9-1.2 arcseconds, with a median of 0.9 arcsecond. |
|---|
| WIYN | NEID Queue observing tonight. Lost 0.42 hours to optics problems at 9:30. Then lost 0.14 to bad seeing starting at 5:30. Seeing ranged between 1.0-3.3 arcsececonds, with a median of 1.2 arcsecond. |
|---|
| 2.1 Meter | Not Scheduled |
|---|
| Feed | Not Scheduled |
|---|
| 0.9 Meter | Not Scheduled |
|---|
| Comments | A mostly quiet, but productive night. |
|---|
| Reported by: | Doug Williams |
|---|
Weather Plots
