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Night Reports 2018

In the tables below, Observing, Weather and Technical refer to time spent observing, time lost to bad weather, and time lost because of technical problems. Note that Observing includes time spent on calibration observations and, occasionally, scheduled on-sky test observations; Technical does not include scheduled downtime (e.g. for planned engineering work).

The Night Duty Officer estimates whether the night was photometric or non-photometric (spectroscopic) based on satellite imagery and SkyCam data obtained through the night. This is a qualitative assessment only and may not always be entirely accurate. IT IS POSSIBLE THAT, ON OCCASION, OBSERVATIONS REQUIRING PHOTOMETRIC CONDITIONS ARE ACQUIRED IN NON-PHOTOMETRIC CONDITIONS. Users should check the quality of their data carefully. Good, average and poor seeing refers to inferred zenith seeing of < 1.0 arcsec, 1.0-2.0 arcsec, and > 2.0 arcsec, respectively. Calima refers to a warm wind that occasionally blows over from the Sahara and brings a lot of fine dust forcing a shutdown to protect the optics.

SKYCAM MOVIES AND ATMOSPHERIC TRANSMISSION

Below we also provide links to Movies constructed from a sequence of optical images obtained with either SkyCam-A (covering the whole sky), SkyCam-T (a 9 degree field centred on each target; was 21 deg before Oct 2014) or SkyCam-Z (1 degree field). Images are obtained every minute or so throughout the entire night. These movies can usually be used to establish, qualitatively at least, how clear or cloudy a given night was. On bright nights (i.e. when the moon is up), the smaller-field camera's T and Z are often more useful than the full-sky camera A. Additional movies and still images are available from the Skycam Archive. Plots of SkyCamZ Zero Point data are also provided. Zero points here are defined with respect to APASS 10 < r < 13 with no colour term. These indicate to first order periods of thin or thick cloud. A clear night usually results in a flat distribution of ZP values, while thick cloud causes a dip in the ZP level. 'A', 'T' and 'Z' in the SkyCam columns refer to the camera from which the data were acquired.

November 2018

DateHours UsedCommentSkyCam
ObservingWeatherTechnicalZP PlotMovie
14 Nov0.610.00.0Bad weather, closed early for the night. Z A T Z
13 Nov6.03.80.8Photometric in poor seeing conditions. High humidity. Z A T Z
12 Nov010.50.0Did not open due to bad weather Z A T Z
11 Nov2.97.70.0Photometric, average seeing. High humidity. Z A T Z
10 Nov10.30.00.2Photometric, good/average seeing. Cas torque errors caused a cas node reboot. Z A T Z
9 Nov7.70.02.9Photometric, acerage seeing. AMN failed to boot, Node 36 error, cas torque errors causing a cas node reboot causing a TCS state model problem. Z A T Z
8 Nov8.02.50.0Photometric, acerage seeing. High humidity at the start of the night. Z A T Z
7 Nov10.40.00.0Photometric, acerage seeing. Z A T Z
6 Nov3.60.06.8Photometric, good/average seeing. Cas torque errors caused a cas node reboot, inducing a TCS state change error. Z A T Z
5 Nov7.52.50.0Photometric, good/average seeing. High humidity at various points throughout the night. Z A T Z
4 Nov10.40.00.0Photometric. Good seeing. Close for high humidity in the early morning. Z A T Z
3 Nov10.40.00.0Photometric. Average seing. Z A T Z
2 Nov10.30.00.0Photometric. Poor seeing. Z A T Z
1 Nov10.30.00.0Non-photometric. Average/Poor seeing. Z A T Z

October 2018

DateHours UsedCommentSkyCam
ObservingWeatherTechnicalZP PlotMovie
31 Oct9.21.00.0Non-photometric. Average seeing. High humidity. Z A T Z
30 Oct6.24.00.0Non-photometric. Average seeing. High humidity. Z A T Z
29 Oct6.54.00.0Non-photometric. Average Seeing. High Humidity. Z A T Z
28 Oct0.59.70.0Non Photometric. Poor Seeing. Z A T Z
27 Oct0.010.20.0Closed. High Humidity Z A T Z
26 Oct1.09.10.0Non photometric. Good Seeing. Z A T Z
25 Oct6.04.10.0Non photonmetric. Good Seeing. Z A T Z
24 Oct0.010.10.0Closed. Cloud/high humidity Z A T Z
23 Oct2.57.60.0Non-photometric. Average Seeing Z A T Z
22 Oct0.010.10.0Closed. Cloud/high humidity Z A T Z
21 Oct0.010.10.0Closed. Cloud/high humidity Z A T Z
20 Oct1.68.60.0Non-photometric. Average seeing High humidity Z A T Z
19 Oct0.79.30.0Non-photometric. Average seeing Z A T Z
18 Oct4.35.70.0Non-photometric. Average Seeing. Cloud/high humidity after 23:30 Z A T Z
17 Oct9.40.00.5Non-photometric. Average seeing Z A T Z
16 Oct9.90.00.0Non-photometric. Good/average seeing Z A T Z
15 Oct9.00.00.9Non-photometric. Good/average seeing Z A T Z
14 Oct4.41.24.6Power outage Z A T Z
13 Oct0.09.80.0Closed. Weather risk Z A T Z
12 Oct0.09.8i0.0Closed. Weather risk Z A T Z
11 Oct9.80.00.0 Z A T Z
10 Oct0.09.70.0Wet weather - -
9 Oct0.09.70.0Wet weather - -
8 Oct0.09.70.0Wet weather - -
7 Oct1.08.70.0Non-photometric with poor seeing. High humidity and cloud for most of night. Z A T Z
6 Oct3.85.90.0Non-photometric with average seeing. High humidity and cloud. Z A T Z
5 Oct9.70.00.0Non-photometric with good seeing. Z A T Z
4 Oct5.24.40.0Non-photometric, thick cloud with good seeing. Z A T Z
3 Oct7.91.70.0Non-photometric, good seeing. Z A T Z
2 Oct9.60.00.0Photometric, good seeing. Z A T Z
1 Oct9.50.00.0Photometric, good seeing. Z A T Z

September 2018

DateHours UsedCommentSkyCam
ObservingWeatherTechnicalZP PlotMovie
30 Sep9.50.00.0Photometric, good seeing. Z A T Z
29 Sep9.50.00.0Photometric, good-average seeing. Z A T Z
28 Sep7.91.50.0Non-photometric, good seeing. Some cloud at start of night and in early morning. Z A T Z
27 Sep5.44.00.0Non-photometric, average-to-poor seeing. High winds and thick cloud at times. Z A T Z
26 Sep9.40.00.0Non-photometric, good seeing. Z A T Z
25 Sep9.30.00.0Non-photometric, good seeing. Z A T Z
24 Sep9.30.00.0Non-photometric, good seeing. Z A T Z
23 Sep9.30.00.0Photometric, good-average seeing. Z A T Z
22 Sep9.20.00.0Non-photometric, poor seeing. Z A T Z
21 Sep9.20.00.0Photometric, average-poor seeing. Z A T Z
20 Sep9.20.00.0Photometric, average seeing. Z A T Z
19 Sep9.20.00.0Photometric, average seeing. Z A T Z
18 Sep9.10.00.0Photometric, good/average seeing. Z A T Z
17 Sep9.10.00.0Photometric, good-average seeing. Z A T Z
16 Sep0.00.09.1Closed for storm. Z A T Z
15 Sep0.09.00.0Closed for storm. Z A T Z
14 Sep0.09.00.0Closed for storm. Z A T Z
13 Sep0.09.00.0Closed for high humidity. Z A T Z
12 Sep0.08.90.0Closed for high humidity. Z A T Z
11 Sep8.90.00.0Photometric. Seeing good/average. Z A T Z
10 Sep8.90.00.0Photometric. Seeing good/average. Z A T Z
9 Sep8.80.00.0Non photometric. Seeing good to average. Z A T Z
8 Sep8.80.00.0Photometric. Seeing good to average. Z A T Z
7 Sep8.80.00.0Photometric. Good seeing. Z A T Z
6 Sep8.70.00.0Photometric. Good seeing. Z A T Z
5 Sep7.80.90.0Non photometric. Good seeing. Z A T Z
4 Sep8.70.00.0Photometric. Good to average seeing. Z A T Z
3 Sep8.60.00.0Non photometric. Good seeing. Z A T Z
2 Sep8.60.00.0Non photometric with good to average seeing Z A T Z
1 Sep8.60.00.0Photometric with good to average seeing Z A T Z

August 2018

DateHours UsedCommentSkyCam
ObservingWeatherTechnicalZP PlotMovie
31 Aug8.50.00.0Non photometric with average seeing Z A T Z
30 Aug8.50.00.0Non photometric with average seeing Z A T Z
29 Aug8.330.00.0Photometric with average seeing. Z A T Z
28 Aug8.40.00.0Photometric, good seeing Z A T Z
27 Aug8.20.00.2Non photometric. High humidity, average seeing Z A T Z
26 Aug5.50.02.9Photometric. Good seeing. Hydraulic level sensor fault. Z A T Z
25 Aug7.90.00.4Photometric. Good seeing. AMN reboot auto-recovered. Z A T Z
24 Aug8.30.00.0Photometric. Good seeing. Z A T Z
23 Aug8.30.00.0Photometric Z A T Z
22 Aug8.20.00.0Photometric. Variable but mostly good seeing. Z A T Z
21 Aug8.20.00.0Non-photometric. Good seeing Z A T Z
20 Aug8.20.00.0Photometric with good seeing. Z A T Z
19 Aug8.20.00.0Photometric with good seeing. Z A T Z
18 Aug8.10.00.0Photometric with average/good seeing. Z A T Z
17 Aug8.10.00.0Photometric with average/good seeing. Z A T Z
16 Aug8.10.00.0Photometric with good seeing. Z A T Z
15 Aug8.10.00.0Photometric with good seeing. Z A T Z
14 Aug4.23.80.0High humidity. Non-photometric with average/good seeing. Z A T Z
13 Aug5.72.30.0High humidity and cloud. Non-photometric with average seeing. Z A T Z
12 Aug4.93.00.0Non-photometric, poor seeing. High humidity. Z A T Z
11 Aug5.92.00.0Photometric, average seeing start of night, very poor seeing second half of night. High humidity. Z A T Z
10 Aug7.90.00.0Photometric, good/average seeing. Z A T Z
9 Aug7.80.00.0Photometric, good/average seeing. Z A T Z
8 Aug7.80.00.0Non-photometric, good/average seeing. Z A T Z
7 Aug7.80.00.0Non-photometric, good/average seeing. Z A T Z
6 Aug7.70.00.0Non-photometric, average/poor seeing. Z A T Z
5 Aug7.70.00.0Non-photometric, poor seeing. IO:I offline. Z A T Z
4 Aug4.13.50.0Non-photometric, good/average seeing, shut after midnight due to calima. IO:I offline. Z A T Z
3 Aug7.60.00.0Non-photometric, good seeing. Z A T Z
2 Aug7.60.00.0Photometric, good/average seeing. Z A T Z
1 Aug7.60.00.0Non-photometric; good seeing. Z A T Z

July 2018

DateHours UsedCommentSkyCam
ObservingWeatherTechnicalZP PlotMovie
31 Jul7.60.00.0Non-photometric. Good/average seeing. Z A T Z
30 Jul7.50.00.0Non-photometric. Good seeing. Z A T Z
29 Jul3.50.04.0Photometric, good/average seeing. Low oil system fault (faulty switch). Z A T Z
28 Jul7.40.00.0Photometric, average seeing. Calima. Z A T Z
27 Jul7.40.00.0Photometric, average seeing. Z A T Z
26 Jul7.40.00.0Photometric, average seeing. Z A T Z
25 Jul7.40.00.0Photometric, good/average seeing. Z A T Z
24 Jul7.40.00.0Non-phometric, good seeing. Z A T Z
23 Jul7.30.00.0Photometric, good/average seeing. Z A T Z
22 Jul7.30.00.0Photometric, good seeing. Z A T Z
21 Jul7.30.00.0Photometric, good seeing. Z A T Z
20 Jul7.30.00.0Non-photometric, good seeing. Weak calima. Z A T Z
19 Jul7.20.00.0Non-photometric, good seeing. Weak calima. Z A T Z
18 Jul7.20.00.0Photometric, good seeing. Z A T Z
17 Jul7.20.00.0Photometric, average seeing. FRODO was offline. Z A T Z
16 Jul7.20.00.0Photometric. Good/average seeing. Z A T Z
15 Jul7.10.00.0Photometric. Good seeing. Z A T Z
14 Jul7.10.00.0Photometric. Average seeing. Z A T Z
13 Jul7.10.00.0Photometric. Good seeing. Z A T Z
12 Jul7.10.00.0Photometric (cloud in twilight). Good seeing. Z A T Z
11 Jul7.10.00.0Non-photometric (thin cirrus). Seeing average. Z A T Z
10 Jul7.10.00.0Non-photometric (dust). Seeing good. Z A T Z
9 Jul70.00.0Non-photometric (dust). Seeing good. Z A T Z
8 Jul70.00.0Non-photometric. Seeing good. Dust levels rising. Z A T Z
7 Jul70.00.0Non-photometric. Seeing good Z A T Z
6 Jul70.00.0Non-photometric. Seeing good Z A T Z
5 Jul70.00.0Non-photometric. Seeing good/average. IO:I offline. Z A T Z
4 Jul70.00.0Non-photometric. Seeing good. Considerable dust extinction Z A T Z
3 Jul70.00.0Scheduler mode set photometric, but probably some dust extinction. Seeing good Z A T Z
2 Jul70.00.0Non-photometric. Seeing good Z A T Z
1 Jul6.40.00.5Photometric, seeing good/average Z A T Z

June 2018

DateHours UsedCommentSkyCam
ObservingWeatherTechnicalZP PlotMovie
30 Jun6.90.00.0Photometric, good/average seeing. Z A T Z
29 Jun6.90.00.0Photometric, good/average seeing. Z A T Z
28 Jun6.90.00.0Photometric, good seeing. Z A T Z
27 Jun6.90.00.0Photometric, good seeing. Z A T Z
26 Jun6.90.00.0Photometric, good/average seeing. Z A T Z
25 Jun6.00.00.9Photometric, average seeing. Poor pointings. Z A T Z
24 Jun6.90.05.0Photometric. Good seeing. Hydraulic Main Pump Fault. Z A T Z
23 Jun6.90.00.0Photometric. Good - average seeing. Z A T Z
22 Jun6.90.00.0Photometric. Good - average seeing. Z A T Z
21 Jun6.90.00.0Photometric. Good seeing throughout apart from spike of bad seeing in middle of night and for final hour of observation. Z A T Z
20 Jun6.80.00.0Photometric. Good seeing turned bad at end of night Z A T Z
19 Jun6.80.00.0Photometric, good/average seeing. Z A T Z
18 Jun6.80.00.0Photometric, good/average seeing. Z A T Z
17 Jun6.90.00.0Photometric, good/average seeing. Z A T Z
16 Jun6.90.00.0Set non-photometric but was in reality pretty clear, good/average seeing. Z A T Z
15 Jun6.40.50.0Average seeing. Set photometric, however cloud came in after dusk eventually being thick enough to close the enclosure around 4am. Z A T Z
14 Jun6.90.00.0Photometric, good/average seeing. Z A T Z
13 Jun6.90.00.0Photometric, average seeing. Z A T Z
12 Jun5.41.50.0Photometric, average seeing. High humidity. Z A T Z
11 Jun6.90.00.0Photometric, average seeing. Z A T Z
10 Jun6.90.00.0Photometric, good seeing. Z A T Z
9 Jun6.90.00.0Photmetric with good seeing. Z A T Z
8 Jun2.64.30.0Good seeing. Most of night lost to high humidity. Z A T Z
7 Jun7.00.00.0Photometric with good seeing. Z A T Z
6 Jun7.00.00.0Photometric with good seeing Z A T Z
5 Jun7.00.00.0Photometric with good seeing. Z A T Z
4 Jun7.00.00.0Non-photometric with average seeing. Z A T Z
3 Jun7.00.00.0Non-photometric, good-to-average seeing. IO:I offline. Z A T Z
2 Jun7.00.00.0Non-photometric, good-to-average seeing. IO:I offline. Z A T Z
1 Jun7.00.00.0Non-photometric; average seeing. IO:I offline. Z A T Z

May 2018

DateHours UsedCommentSkyCam
ObservingWeatherTechnicalZP PlotMovie
31 May5.51.10.5Non-photometric, average/good seeing. Some cloud, and enclosure PLC fault near dawn. Z A T Z
30 May7.10.00.0Non-photometric; average/good seeing Z A T Z
29 May7.10.00.0Non-photometric; average seeing. Z A T Z
28 May7.10.00.0Non-photometric; good seeing. Z A T Z
27 May7.10.00.0Photometric, average seeing. Z A T Z
26 May7.20.00.0Photometric, average seeing. Z A T Z
25 May0.36.90.0Non-photometric, average seeing. High humidity for most of night. Z A T Z
24 May5.71.60.0Photometric with average seeing. Multiple short closures due to spikes in humidity. Z A T Z
23 May6.70.60.0Photometric, average/good seeing. High humidity briefly at end of night. Z A T Z
22 May7.30.00.0Non-photometric, average/good seeing. Z A T Z
21 May6.90.40.0Photometric, average/good seeing. Spike in humidity towards end of night. Z A T Z
20 May7.30.00.0Photometric, average seeing. Z A T Z
19 May7.30.00.0Photometric. Average seeing. Z A T Z
18 May7.40.00.0Photometric. Good seeing. Z A T Z
17 May7.40.00.0Photometric. Good seeing. Z A T Z
16 May7.40.00.0Photometric. Good/average seeing. Z A T Z
15 May7.40.00.0Non-photometric. Average seeing. Z A T Z
14 May7.50.00.0Photometric with average/good seeing. Z A T Z
13 May7.50.00.0Photometric. Seeing good becoming average. Z A T Z
12 May7.50.00.0Spectroscopic. Average seeing. Z A T Z
11 May7.50.00.0Photometric. Good/average seeing. Z A T Z
10 May7.60.00.0Photometric. Good seeing. Z A T Z
9 May7.60.00.0Photometric. Good seeing. Z A T Z
8 May7.60.00.0Photometric. Good seeing. Z A T Z
7 May7.70.00.0Photometric. Good seeing. Z A T Z
6 May7.70.00.0Photometric, average seeing. Z A T Z
5 May0.07.80.0High humidity and freezing temperatures. - - - -
4 May7.80.00.0Set photometric, but some light cloud around at various points throughout the night. Average seeing. Z A T Z
3 May7.20.70.0Photometric, average seeing. High humidity. Z A T Z
2 May7.90.00.0Photometric, good/average seeing. Z A T Z
1 May0.07.90.0High humidity. - - - -

April 2018

DateHours UsedCommentSkyCam
ObservingWeatherTechnicalZP PlotMovie
30 Apr7.90.00.0Photometric, average seeing. Z A T Z
29 Apr8.00.00.0Photometric, average seeing. Full Moon. Z A T Z
28 Apr8.00.00.0Photometric, good-average seeing. Z A T Z
27 Apr8.00.00.0Photometric, good-average seeing. Z A T Z
26 Apr8.00.00.0Photometric, good seeing. Z A T Z
25 Apr8.10.00.0Photometric, good seeing. Z A T Z
24 Apr0.07.01.1High humidity, hydraulic system fault. Z A T Z
23 Apr0.08.10.0High humidity, no observing. - - - -
22 Apr0.08.10.0Closed for low temperature and high humidity. - - - -
21 Apr0.08.10.0Closed for low temperature and high humidity. - - - -
20 Apr0.08.20.0Closed for low temperature and high humidity. - - - -
19 Apr0.08.20.0Closed for low temperature and high humidity. - - - -
18 Apr8.20.00.0Non-photometric, good/average seeing. Z A T Z
17 Apr8.20.00.0Photometric for most part of the night, good/average/poor seeing. Z A T Z
16 Apr8.30.00.0Non-photometric, good/average seeing. Z A T Z
15 Apr8.40.00.0Non-photometric, good/average seeing. Z A T Z
14 Apr6.52.00.0High humidity, non-photometric, good/average seeing. Z A T Z
13 Apr8.00.50.0Photometric, good/average seeing. Short spell of high humidity Z A T Z
12 Apr4.64.00.0High humidity, average seeing, photometric. Z A T Z
11 Apr7.61.00.0Photometric, average seeing. Closed briefly for high humidity. Z A T Z
10 Apr8.00.60.0Photometric, average seeing. High humidity before sunrise. Z A T Z
9 Apr0.03.05.6High humidity, low temp. - - - -
8 Apr0.08.60.0High humidity - -
7 Apr8.70.00.0Photometric. Poor seeing. Z A T Z
6 Apr0.58.20.0High humidity Z A T Z
5 Apr8.80.00.0Photometric. Excellent seeing Z A T Z
4 Apr8.80.00.0Photometric. Good seeing. Z A T Z
3 Apr8.80.00.0Became non-p'metric towards end of night. Good seeing. Z A T Z
2 Apr8.80.00.0Photometric. Good seeing Z A T Z
1 Apr0.08.80.0Thick cloud and high humidity. IO:O offline. - - - -

March 2018

DateHours UsedCommentSkyCam
ObservingWeatherTechnicalZP PlotMovie
31 Mar8.90.00.0Non-photometric, good seeing. IO:O offline later in evening. Z A T Z
30 Mar8.90.00.0Non-photometric; average seeing. Z A T Z
29 Mar90.00.0Non-photometric. Average-poor seeing. Z A T Z
28 Mar8.30.70.0Non-photometric, cloudy in evening, calima throughout night. Poor-to-average seeing. Z A T Z
27 Mar0.09.10.0No observing; cloud all night - - - -
26 Mar9.10.00.0Non-photometric; poor seeing. Z A T Z
25 Mar9.10.00.0Photometric with average seeing. Z A T Z
24 Mar9.20.00.0Non-photometric with average seeing. Z A T Z
23 Mar9.20.00.0Photometric with average/good seeing. Z A T Z
22 Mar9.20.00.0Photometric with average seeing. Z A T Z
21 Mar9.20.00.0Photometric with average seeing. Z A T Z
20 Mar9.30.00.0Photometric with average seeing Z A T Z
19 Mar6.03.30.0High humidity at start of night. Non-photometric with average seeing. Z A T Z
18 Mar2.08.30.0Non-photometric, good seeing. Close between 2100 and 0600 hours due to high humidity. Z A T Z
17 Mar9.01.40.0Opened late due to high humidity in the early evening. Non-photometric and good seeing for the rest of the night. Z A T Z
16 Mar9.40.00.0Non-photometric, average/good seeing. Z A T Z
15 Mar1.48.00.0Photometric and average seeing. Close for high humidity in late evening. Z A T Z
14 Mar1.48.00.0Non-photometric and average seeing. Closed for high humidity in late evening. Z A T Z
13 Mar9.40.00.0Photometric, good seeing until early morning. Thin cloud and average seeing after around 3am. Z A T Z
12 Mar9.50.00.0Photometric, good seeing. Z A T Z
11 Mar9.50.00.0Non-photometric, good/average seeing. Z A T Z
10 Mar9.50.00.0Photometric, average seeing. Z A T Z
9 Mar0.04.74.9Water contamination in hydraulic oil. High humidity. - - - -
8 Mar0.09.60.0Water contamination in hydraulic oil. High humidity and high winds. - - - -
7 Mar0.04.84.8Water contamination in hydraulic oil. High humidity. - - - -
6 Mar0.00.09.7Water contamination in hydraulic oil. High humidity. - - - -
5 Mar0.07.62.1Water contamination in hydraulic oil. High humidity. - - - -
4 Mar0.09.70.0High humidity. Ice on enclosure. - - - -
3 Mar0.09.80.0High humidity. Ice on enclosure. - - - -
2 Mar0.08.81.0High humidity. Ice on enclosure. - - - -
1 Mar0.09.80.0High humidity and wind. Ice on enclosure. - - - -

February 2018

DateHours UsedCommentSkyCam
ObservingWeatherTechnicalZP PlotMovie
28 Feb0.09.80.0High humidity and wind. Ice on telescope. - - - -
27 Feb0.09.80.0High humidity and high wind speed. Ice on telescope. - - - -
26 Feb0.09.90.0High humidity + low temp. Ice build-up on telescope. - - - -
25 Feb0.09.90.0High humidity. Ice on telescope. - - - -
24 Feb0.09.90.0High humidity. Ice on enclosure - - - -
23 Feb0.010.00.0High humidity. Ice on enclosure - - - -
22 Feb0.010.00.0Ice on enclosure - - - -
21 Feb0.010.00.0Ice on enclosure - - - -
20 Feb0.010.00.0Ice on enclosure - - - -
19 Feb0.010.00.0Ice on enclosure - - - -
18 Feb0.010.10.0Ice on enclosure - - - -
17 Feb0.010.10.0Ice on enclosure - - - -
16 Feb0.010.10.0Ice on enclosure - - - -
15 Feb0.010.10.0Ice on enclosure - - - -
14 Feb0.010.10.0Ice on enclosure - - - -
13 Feb0.010.20.0Ice on enclosure - - - -
12 Feb0.010.20.0Ice on enclosure - - - -
11 Feb0.010.20.0Ice on enclosure - - - -
10 Feb0.010.20.0High humidity, ice on enclosure - - - -
9 Feb0.010.30.0High humidity, ice on enclosure - - - -
8 Feb0.010.30.0High humidity, ice on enclosure - - - -
7 Feb0.010.30.0High humidity, ice on enclosure - - - -
6 Feb0.010.30.0High humidity, ice on enclosure - - - -
5 Feb0.010.40.0High humidity, ice on enclosure - - - -
4 Feb0.010.40.0High humidity, ice on enclosure - - - -
3 Feb0.010.40.0High humidity, ice on enclosure - - - -
2 Feb0.010.40.0High humidity, ice on enclosure - - - -
1 Feb0.010.40.0High humidity, ice on enclosure - - - -

January 2018

DateHours UsedCommentSkyCam
ObservingWeatherTechnicalZP PlotMovie
31 Jan0.010.50.0High humidity, ice on enclosure - - - -
30 Jan0.010.50.0High humidity, ice on enclosure. - - - -
29 Jan0.010.50.0High humidity, ice on enclosure. - - - -
28 Jan0.010.60.0High humidity and sub-zero temperature. - - - -
27 Jan9.61.00.0Photometric until early morning, average seeing. Z A T Z
26 Jan10.60.00.0Photometric, average/poor seeing. Z A T Z
25 Jan10.60.00.0Photometric, average seeing. Z A T Z
24 Jan8.62.00.0Non-photometric, seeing improved over night from poor to good. Lost 2 hours to clouds early in the night. Z A T Z
23 Jan7.63.00.0Non-photometric, average seeing. Lost 3 hours to clouds early in the night. Z A T Z
22 Jan10.60.00.0Photometric and good seeing for most of the night, thin clouds and average seeing near morning twilight. Z A T Z
21 Jan10.60.00.0Photometric and average/poor seeing. Z A T Z
20 Jan10.70.00.0Photometric, average/poor seeing. Z A T Z
19 Jan10.70.00.0Photometric, average seeing. Z A T Z
18 Jan8.90.01.8Photometric, average seeing. Cassegrain axis torque errors in middle of night. Z A T Z
17 Jan0.010.70.0Closed due to ice on enclosure and high humidity. Z A T Z
16 Jan0.010.70.0Closed all night due to high humidity and ice. Z A T Z
15 Jan0.710.00.0Closed most of the night for high humidity, high wind speed and ice risk. Poor seeing. Z A T Z
14 Jan6.04.80.0Photometric, average/poor seeing. High humidity. Z A T Z
13 Jan3.07.80.0Non-photometric, average seeing. High humidity. Z A T Z
12 Jan10.70.00.0Non-photometric, good/average seeing. Z A T Z
11 Jan7.30.03.5Photoemtric, average seeing. Cass bearing fault. Z A T Z
10 Jan10.80.00.0Photometric, average seeing. Z A T Z
9 Jan10.80.00.0Non-photometric, average seeing. Z A T Z
8 Jan0.010.80.0Ice on the enclosure. - - - -
7 Jan0.010.80.0Ice and humidity - - - -
6 Jan0.010.80.0High humidity & rain - - - -
5 Jan6.54.30.0Poor seeing. Intermittent humidity. Z A T Z
4 Jan9.40.01.4Photometric. Average/poor seeing. Cass bearing fault. Z A T Z
3 Jan10.80.00.0Photometric. Poor seeing. Z A T Z
2 Jan10.80.00.0Photometric. Poor seeing. Z A T Z
1 Jan0.00.010.9Photometric. Poor seeing. Some obs in twilight, then E-stop fault. Z A T Z