LTO Report
Kitt Peak Nightly LTO Report For UT: 2019-08-24
Report Time (MST): 04:43
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) | 18.2 | 20.7 | 12.7 | 1.1 |
|---|
| Dewpoint Temperature (°C) | 10.1 | 14.2 | 7.3 | 1.6 |
|---|
| Relative humidity (%) | 60 | 93 | 50 | 7.7 |
|---|
| Wind Speed (mph) | 21.8 | 68.5 | 2.8 | 11.2 |
|---|
| Wind Direction (°) | 149 | 77 | 287 | 0.6 |
|---|
| 4M Dome Temperature (°C) | 20.6 | 22.4 | 19.5 | 0.8 |
|---|
| 4M Dome Dewpoint (°C) | 12.2 | 14.1 | 10.6 | 1.0 |
|---|
| 4M Primary Mirror (°C) | 24.9 | 25.3 | 24.5 | 0.2 |
|---|
| Weather Comments: | Partly cloudy skies in the afternoon gave way to clear skies for about 45
minutes around sunset. The clouds returned by 1930. They began to dissipate
around 0300 but never completely cleared. Between 2100 and 2130 thunderstorms
passed overhead. Humidity around 60% except for that half and hour. Winds began
the night around 10mph before increasing when the thunderstorms arrived. At 2330
the winds fell to around 5mph. Winds out of the west until 0200 when they
shifted to the east. |
|---|
| Recognized Hours: | ( 8.5 ) 18 degree twilight + 0.5 hr. |
Observer Information
| Telescope | Observer | Prop. # | Instrument | Detector | Seeing |
|---|
| 4 Meter | No Observer | --- | N/A | N/A | N/A |
|---|
| WIYN | Peterson, Remocaldo, Dutta -remote- | 2019B-0494 | ODI | 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 | Lee | 2019B-0923 | HDI | 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 |
|---|
| 8.5 | Shutdown | | | | |
|
| WIYN |
|---|
| 0.0 | Scientific Research | | 8.5 | Weather | 18:00 - 05:00 |
|
| 2Meter |
|---|
| 0.0 | Scientific Research | | | | |
|
| Feed |
|---|
| 0.0 | Scientific Research | | | | |
|
| W0_9m |
|---|
| 0.0 | Scientific Research | | 8.5 | Weather | 18:00 - 05:00 |
Observing Status
| 4 Meter | Mayall shutdown in preparation for DESI. |
|---|
| WIYN | Lost entire night to weather. No seeing measurements taken. |
|---|
| 2.1 Meter | Not Scheduled |
|---|
| Feed | Not Scheduled |
|---|
| 0.9 Meter | Lost entire night to weather. Had an issue with the CCD. See MSR #27598 for details. |
|---|
| Comments | No science done tonight. |
|---|
Weather Plots
