LTO Report
Kitt Peak Nightly LTO Report For UT: 2017-06-27
Report Time (MST): 04:12
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) | 23.5 | 26.4 | 21.7 | 1.1 |
|---|
| Dewpoint Temperature (°C) | 4.4 | 8.3 | -1.1 | 1.4 |
|---|
| Relative humidity (%) | 29 | 40 | 21 | 3.0 |
|---|
| Wind Speed (mph) | 22.7 | 38.1 | 7.5 | 7.2 |
|---|
| Wind Direction (°) | 270 | 310 | 127 | 0.1 |
|---|
| 4M Dome Temperature (°C) | 25.2 | 29.0 | 22.6 | 2.2 |
|---|
| 4M Dome Dewpoint (°C) | 7.5 | 10.2 | 2.6 | 1.5 |
|---|
| 4M Primary Mirror (°C) | 24.1 | 24.6 | 23.5 | 0.3 |
|---|
| Weather Comments: | A nearby thunderstorm to the west delayed opening until 2130. Mostly clear
afterwards with west winds from 10-35mph. |
|---|
| Recognized Hours: | ( 7 ) 18 degree twilight + 0.5 hr. |
Observer Information
| Telescope | Observer | Prop. # | Instrument | Detector | Seeing |
|---|
| 4 Meter | 1st half - Shi, Huang, Lee (remote); 2nd half - Andrews (remote) | 2017A-0254/2016B-0925 | MOSAIC | N/A | 1.0 |
|---|
| WIYN | No Observer | --- | N/A | N/A | N/A |
|---|
| 2.1 Meter | Salama | 2015B-3001 | Visitor | N/A | N/A |
|---|
| Feed | No Observer | --- | N/A | N/A | N/A |
|---|
| 0.9 Meter | Smith, Gulladge, Welch, Corley | 2017A-0929 | HDI | N/A | 1.2 |
|---|
Time Usage During The Night
| Telescope | Hours Used | Night's Activity | | Hours Lost | Time Lost
Due To: | Time of
Night (MST) |
|---|
|
| 4Meter |
|---|
| 6.25 | Scientific Research | | 0.5 | Weather | 20:30 - 21:30 |
| | | | 0.25 | Instrument Problem | 00:00 - 02:30 |
|
| WIYN |
|---|
| 0.0 | Scientific Research | | | | |
|
| 2Meter |
|---|
| 0.0 | Scientific Research | | 7.0 | Weather | 20:30 - 04:30 |
|
| Feed |
|---|
| 0.0 | Scientific Research | | | | |
|
| W0_9m |
|---|
| 6.5 | Scientific Research | | 0.5 | Weather | 20:30 - 21:30 |
Observing Status
| 4 Meter | Lower right quadrant of Mosaic has stopped working. See MSR 26395. Most time lost to diagnosing this problem was during bad weather, but we did lose afternoon calibrations to this problem. We had two Mosaic timeouts later in the night costing about 10 minutes in all. Seeing ranged from 0.9 to 2.0 arcsec, with typical seeing around 1 arcsec in the VR band. |
|---|
| WIYN | Not Scheduled - Summer maintenance shutdown. |
|---|
| 2.1 Meter | Was unable to capture the laser due to the hazy skies. No observing. |
|---|
| Feed | Not Scheduled |
|---|
| 0.9 Meter | No technical problems. Lost a little time at the beginning of the night due to weather. Seeing ranged from 1.2-2.4 arcsec as measured with HDI, but mostly was on the better end of the range. |
|---|
| Comments | The 0.9-meter observers reported seeing a bear near the dining hall around midnight. The fire in
the southeast near Baboquivari is still distant, but appears to have grown. |
|---|
Weather Plots
