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Night Reports 2013

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 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.

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 (showing a 21 degree field centred on each target) 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 SkyCam Zero Point data are also provided. 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.

December 2013

DateHours UsedComment Skycam
Observing Weather Technical ZP Plot Movie
31 Dec10.90.00.0Non-photometric Z A T Z
30 Dec10.90.00.0Non-photometric Z A T Z
29 Dec10.90.00.0Non-photometric Z A T Z
28 Dec0.010.90.0High-humidity for the start of the night. Below freezing temperatures with high humidity for a period later, and so therefore a risk of ice. - -
27 Dec0.010.90.0High-humidity. - -
26 Dec10.90.00.0Photometric. Z T Z
25 Dec10.90.00.0Non-photometric. Z T Z
24 Dec10.90.00.0Non-photometric. Z A T Z
23 Dec10.90.00.0Non-photometric. Cloud at times. Z A T Z
22 Dec6.21.03.2Non-photometric. Cloud and humidity at various times. AMN failure. Z A T Z
21 Dec10.90.00.0Non-photometric. Z A T Z
20 Dec10.90.00.0Photometric. Again cloud appeared later on in the night. Z A T Z
19 Dec10.90.00.0Photometric. Some cloud appeared throughout the night however. Z A T Z
18 Dec10.90.00.0Photometric. Z A T Z
17 Dec10.90.00.0Set Photometric. Z A T Z
16 Dec6.04.80.1Non-photometric. High humidity. Recollimation. Z A T Z
15 Dec0.010.90.0Opened for flats. Closed by rain and calima event. - -
14 Dec0.010.90.0Risk of ice at start of night. Later, high wind speeds. Later still, high humidity. - -
13 Dec0.010.90.0High wind speed and high humidity. Temperatures near freezing. - -
12 Dec0.010.90.0Thick cloud, high humidity. - -
11 Dec0.010.90.0Thick cloud, high humidity. - -
10 Dec0.010.90.0Thick cloud, high humidity, wind spikes. - -
9 Dec0.010.90.0Thick cloud and high humidity during the short period it cleared. - -
8 Dec0.010.90.0High humidity and/or thick cloud. Opened briefly, though all data likely to be very poor. - A T Z
7 Dec1.89.10.0High humidity. Opened briefly twice early in night (non-photometric). Z A T Z
6 Dec0.010.90.0High humidity. - -
5 Dec0.010.80.0High humidity. - -
4 Dec6.53.00.0Periods of high humidity, plus some early engineering. Non-photometric when observing (though extinction quite low). Z T Z
3 Dec1.49.40.0High humidity. Opened briefly at end of night - some thin cirrus. Z T Z
2 Dec0.010.80.0Wet weather continues - closed all night (Humidity 100%). - -
1 Dec0.010.80.0Continuous high humidity and risk of ice. - -

November 2013

DateHours UsedComment Skycam
Observing Weather Technical ZP Plot Movie
30 Nov0.010.80.0High humidity. - -
29 Nov0.010.70.0High humidity. - -
28 Nov8.42.30.0Non-photometric. High humidity. Z A T Z
27 Nov0.010.70.0High humidity. - -
26 Nov10.70.00.0Non-photometric. Z A T Z
25 Nov10.70.00.0Set Photometric, but some cloud passes through later in the night. Z A T Z
24 Nov9.51.20.0Non-photometric. High humidity. Z A T Z
23 Nov5.35.40.0Non-photometric. High humidity. Z A T Z
22 Nov7.63.10.0Non-photometric. High humidity. Z A T Z
21 Nov2.58.20.0Non-photometric. High humidity, light rain. Z A T Z
20 Nov10.60.00.0Non-photometric. Cloud at times Z A T Z
19 Nov0.010.60.0High humidity, rain. Z A T Z
18 Nov1.78.90.0Non-photometric. High humidity, rain. Z A T Z
17 Nov0.010.60.0High humidity and near-freezing all night; no observing. Z A T Z
16 Nov6.83.80.0Non-photometric; high dewpoint near dawn Z A T Z
15 Nov8.32.30.0Photometric; high dewpoint near dawn Z A T Z
14 Nov10.60.00.0Non-photometric. Thin, patchy cirrus and poor seeing. ALL INSTRUMENTS BACK ON-LINE. Z A T Z
13 Nov0.010.60.0Thick cloud and periods of fog. Brief period of IO:O commissioning. - -
12 Nov8.70.00.0Photometric (until last hour). IO:O recomissioning at start of night (approx. 2 hours). Z A T Z
11 Nov10.50.00.0Photometric. IO:O offline. RINGO3 available again though with possible light leaks in camera 'f'. Z A T Z
10 Nov10.50.00.0Photometric. IO:O and RINGO3 still offline for maintenance. Z A T Z
9 Nov7.53.00.0Non-photometric. Patchy cirrus plus closed for a time due to high humidity. IO:O and RINGO3 offline for maintenance. Z A T Z
8 Nov10.50.00.0Non-photometric though cloud very thin. IO:O offline for maintenance; FRODOspec red-arm warmed up. Z A T Z
7 Nov10.40.00.0Non-photometric. Z A T Z
6 Nov10.40.00.0Non-photometric. Z A T Z
5 Nov10.40.00.0Non-photometric. Z A T Z
4 Nov10.40.00.0Photometric. Medium/poor seeing. Z A T Z
3 Nov3.17.30.0Non-photometric. High humidity. Z A T Z
2 Nov7.72.60.0Non-photometric. Thick cloud. Z A T Z
1 Nov10.30.00.0Scheduler set photometric, but some haze visible on skycams. Z A T Z

October 2013

DateHours UsedCommentSkyCam
Observing Weather Technical ZP Plot Movie
31 Oct0.010.20.0High humidity. Risk of ice. - -
30 Oct9.01.20.0Non-photometric. High humidity. Z A T Z
29 Oct8.71.250.25Non-photometric. High humidity, ACADS problem. Z A T Z
28 Oct0.010.20.0High humidity. - -
27 Oct6.14.10.0Thickish cloud between 22.00-00.00 UT; closed periodically because of high humidity; reasonably photometric rest of time. Z A T Z
26 Oct7.23.00.0Photometric, though closed for the first few hours because of high humidity. Z A T Z
25 Oct0.010.10.0High humidity all night; no data acquired. - -
24 Oct0.06.14.0Problem with Cassegrain rotator, though periods of thick cloud/fog also. - -
23 Oct10.10.00.0Photometric most of the night; maybe some thin cloud first half. Z A T Z
22 Oct10.10.00.0Non-photometric. Note: thick cloud first 2-3 hours especially. Z A T Z
21 Oct10.10.00.0Non-photometric. 0.5-1 mag of extinction throughout first half of night. Z A T Z
20 Oct10.00.00.0Photometric. Z A T Z
19 Oct10.00.00.0Non-photometric. Z A T Z
18 Oct6.83.20.0Non-photometric. Closed for a few hours because of high humidity. Z A T Z
17 Oct9.90.00.0Non-photometric. Z A T Z
16 Oct9.90.00.0Non-photometric. Z A T Z
15 Oct0.00.09.9Air compressor fault, no observing. - -
14 Oct0.00.09.9Air compressor fault, no observing. - -
13 Oct9.80.00.0Photometric. Z A T Z
12 Oct9.80.00.0Photometric. Z A T Z
11 Oct9.80.00.0Photometric. Z A T Z
10 Oct9.70.00.0Photometric. Z A T Z
9 Oct9.70.00.0Photometric. Z A T Z
8 Oct9.70.00.0Non-photometric. Z A T Z
7 Oct9.70.00.0Photometric. Z A T Z
6 Oct9.70.00.0Photometric. Z A T Z
5 Oct9.70.00.0Photometric. Z A T Z
4 Oct9.60.00.0Non-photometric. Z A T Z
3 Oct5.93.80.0Non-photometric. High humidity. Z A T Z
2 Oct0.09.60.0High humidity. - -
1 Oct2.47.10.0Non-photometric. High humidity. Z A T Z

September 2013

DateHours UsedCommentSkyCam
ObservingWeatherTechnicalZP PlotMovie
30 Sep9.50.00.0Non-photometric. Z A T Z
29 Sep9.50.00.0Photometric. Z A T Z
28 Sep9.40.00.0Non-photometric. Z A T Z
27 Sep5.53.90.0Non-photometric; periods of high humidity in early morning. Z A T Z
26 Sep2.86.60.0Non-photometric; high humidity set in near midnight. Z A T Z
25 Sep2.07.30.0Non-photometric; high humidity until early morning. Z A T Z
24 Sep0.88.50.0Non-photometric; high humidity most of night. Z A T Z
23 Sep9.30.00.0Photometric. Z A T Z
22 Sep9.20.00.0Photometric; good seeing. Z A T Z
21 Sep9.20.00.0Photometric initially; mayby some cloud towards end of night Z A T Z
20 Sep9.20.00.0Photometric; good seeing. Z A T Z
19 Sep9.20.00.0Photometric; decent seeing. Z A T Z
18 Sep8.01.10.0Photometric though rising humidity; lost last hour to fog. Z A T Z
17 Sep9.10.00.0Photometric; decent seeing. Z A T Z
16 Sep0.09.10.0High humidity. - -
15 Sep0.00.09.0Air Compressor Fault - -
14 Sep0.00.09.0Air Compressor Fault - -
13 Sep0.00.09.0Air Compressor Fault - -
12 Sep5.93.00.0Non-photometric. High humidity. Z A T Z
11 Sep1.97.00.0Non-photometric. High humidity. Z A T Z
10 Sep7.21.70.0Non-photometric. High humidity later. Z A T Z
9 Sep8.80.00.0Photometric. Z A T Z
8 Sep8.80.00.0Non-photometric. Z A T Z
7 Sep3.65.20.0Non-photometric. High humidity. Z A T Z
6 Sep8.70.00.0Photometric. Z A T Z
5 Sep8.50.00.2Photometric. Cass node reboot. Z A T Z
4 Sep8.50.00.2Photometric. Cass node reboot. Z A T Z
3 Sep0.00.08.6Island-wide power cut. - -
2 Sep8.60.00.0Non-photometric. Z A T Z
1 Sep8.60.00.0Photometric Z A T Z

August 2013

DateHours UsedCommentSkyCam
ObservingWeatherTechnicalZP PlotMovie
31 Aug8.50.00.0Photometric Z A T Z
30 Aug8.50.00.0Photometric Z A T Z
29 Aug8.50.00.0Photometric Z A T Z
28 Aug7.80.00.6Photometric; red sector ACAD error at startup. Z A T Z
27 Aug8.40.00.0Non-photometric. Z A T Z
26 Aug8.40.00.0Photometric. Good seeing. Z A T Z
25 Aug8.30.00.0Photometric. Z A T Z
24 Aug8.30.00.0Non-photometric. Calima ~= 30 micrograms/m3. Z A T Z
23 Aug8.30.00.0Non-photometric. Good seeing and relatively clear later, but with calima ~= 28 micrograms/m3 Z A T Z
22 Aug8.20.00.0Non-photometric. Significant cloud with a full moon. Clearer after 01:00UT Z A T Z
21 Aug3.954.250.0Non-photometric. Generally cloudy. One period of thick cloud. Z A T Z
20 Aug1.07.20.0Non-photometric. Mostly no observing due to thick cloud. Z A T Z
19 Aug6.00.00.0Photometric. A few hours spent on engineering tests tonight. Z A T Z
18 Aug8.10.00.0Photometric but again quite windy. FRODOspec red-arm temperature fluctuations. Z A T Z
17 Aug0.67.50.0Photometric, though closed much of night due to high winds. Z -
16 Aug8.10.00.0Photometric. RINGO3 offline; minor FRODOspec red-arm temperature fluctuations. Z A T Z
15 Aug8.10.00.0Photometric. (IO:O back on-line.) Z A T Z
14 Aug6.51.50.0Non-photometric, though clearer second half of night. IO:O offline. Z A T Z
13 Aug8.00.00.0Non-photometric. Some thick cloud; better second half of night. IO:O offline. Z A T Z
12 Aug0.07.90.0Thick, patchy cloud for most of the night. Observations likely to be poor. IO:O offline. Z A T Z
11 Aug7.40.00.5Photometric. Rack-reboot. IO:O offline. Z A T Z
10 Aug7.90.00.0Photometric. Z A T Z
9 Aug7.80.00.0Photometric. Z A T Z
8 Aug7.80.00.0Non-photometric. Z A T Z
7 Aug6.50.01.3Non-photometric. Chiller fault. Z A T Z
6 Aug7.70.00.0Non-photometric (dust). Skycam-A offline; FRODOspec-blue arm warm. Z T Z
5 Aug0.07.70.0High levels of dust (Calima). No observing. - -
4 Aug0.07.60.0High levels of dust (Calima). No observing. - -
3 Aug0.07.60.0High levels of dust (Calima). No observing. - -
2 Aug0.07.60.0High levels of dust (Calima). No observing. - -
1 Aug7.60.00.0Photometric; all instruments available. Z A T Z

July 2013

DateHours UsedCommentSkyCam
ObservingWeatherTechnicalZP PlotMovie
31 Jul7.60.00.0Photometric; RATCam offline. Z A T Z
30 Jul7.50.00.0Photometric; RATCam offline. Z A T Z
29 Jul7.50.00.0Photometric; RATCam offline. Z A T Z
28 Jul7.40.00.0Photometric. RATCam offline, Frodospec offline. Z A T Z
27 Jul7.40.00.0Photometric. RATCam offline, Frodospec offline. Z A T Z
26 Jul7.40.00.0Photometric. RATCam offline. Z A T Z
25 Jul7.40.00.0Photometric. RATCam offline. Z A T Z
24 Jul7.40.00.0Photometric. RATCam offline. Z A T Z
23 Jul7.30.00.0Photometric. RATCam offline. Z A T Z
22 Jul7.30.00.0Photometric. RATCam offline. Z A T Z
21 Jul7.30.00.0Photometric; RATCam offline. Z A T Z
20 Jul7.30.00.0Photometric; RATCam offline. Z A T Z
19 Jul7.20.00.0Photometric; RATCam offline. Z A T Z
18 Jul7.20.00.0Photometric; RATCam offline. Z A T Z
17 Jul7.20.00.0Photometric; RATCam offline. Z A T Z
16 Jul7.20.00.0Photometric; RATCam offline Z A T Z
15 Jul7.10.00.0Photometric; RATCam offline Z A T Z
14 Jul7.10.00.0Photometric. RATCam offline. Z A T Z
13 Jul7.10.00.0Photometric. RATCam offline. Z A T Z
12 Jul6.70.00.4Photometric. RATCam offline. Autoguider focus timeout. Z A T Z
11 Jul7.10.00.0Photometric? Some calima. RATCam offline. Z A T Z
10 Jul7.10.00.0Photometric? Some calima. RATCam offline. Z A T Z
9 Jul7.00.00.0Photometric? Some calima. RATCam offline. Z A T Z
8 Jul7.00.00.0RATCam offline. Photometric. Z A T Z
7 Jul7.00.00.0Photometric. RATCam unavailable. Z A T Z
6 Jul7.00.00.0Photometric. RATCam filter wheel failure. Z A T Z
5 Jul7.00.00.0Photometric. Z A T Z
4 Jul7.00.00.0Photometric. Z A T Z
3 Jul0.00.07.0Chiller fault. - -
2 Jul1.70.05.3Photometric. Chiller fault. Z A T Z
1 Jul6.90.00.0Photometric. Z A T Z

June 2013

DateHours UsedCommentSkyCam
ObservingWeatherTechnicalZP PlotMovie
30 Jun0.00.06.9Mirror alignment problem. Z A T Z
29 Jun6.40.50.0Non-photometric. High/gusting winds. Z A T Z
28 Jun6.90.00.0Non-photometric. Z A T Z
27 Jun3.90.03.0Photometric but cloudy later. Chiller problem. Z A T Z
26 Jun6.90.00.0Photometric. Z A T Z
25 Jun6.90.00.0Non-photometric. Z A T Z
24 Jun6.90.00.0Photometric. Z A T Z
23 Jun6.90.00.0Photometric. Z A T Z
22 Jun6.90.00.0Photometric. Z A T Z
21 Jun6.90.00.0Photometric. Z A T Z
20 Jun6.80.00.0Photometric. Poor seeing. Z A T Z
19 Jun6.80.00.0Non-photometric. Z A T Z
18 Jun6.80.00.0Non-photometric. Z A T Z
17 Jun6.90.00.0Photometric. Z A T Z
16 Jun6.90.00.0Photometric. Z A T Z
15 Jun6.90.00.0Photometric. Z A T Z
14 Jun6.90.00.0Photometric. Z A T Z
13 Jun6.90.00.0Photometric, but again highish humidity. Some noisy IO:O data. Z A T Z
12 Jun6.90.00.0Photometric, but rising humidity second half of night. Z A T Z
11 Jun6.90.00.0Photometric. Some very thin cloud second half of night (see skycam-T movie) Z A T Z
10 Jun6.90.00.0Photometric. Z A T Z
9 Jun6.90.00.0Near-Photometric; maybe some very thin cirrus. Z A T Z
8 Jun6.90.00.0Photometric. Periods of good seeing. Z A T Z
7 Jun6.50.00.5Photometric. JVM crash shortly after startup. Z A T Z
6 Jun5.00.00.0Photometric. Some science data obtain as instruments re-commissioned. Z A T Z
5 Jun0.00.00.0Telescope recommissioning continues. Z T Z
4 Jun0.00.00.0Telescope recommissioning continues (through cirrus first half of night). Z A T Z
3 Jun1.00.00.0Telescope recommissioning. Some IO:O science data at end of night. Z A T Z
2 Jun0.00.00.0Telescope closed for maintenance (mirror re-coating) - -
1 Jun0.00.00.0Telescope closed for maintenance (mirror re-coating) - -

May 2013

DateHours UsedCommentSkyCam
ObservingWeatherTechnicalZP PlotMovie
31 May0.00.00.0Telescope closed for maintenance (mirror re-coating) - -
30 May0.00.00.0Telescope closed for maintenance (mirror re-coating) - -
29 May0.00.00.0Telescope closed for maintenance (mirror re-coating) - -
28 May0.00.00.0Telescope closed for maintenance (mirror re-coating) - -
27 May0.00.00.0Telescope closed for maintenance (mirror re-coating) - -
26 May0.00.00.0Telescope closed for maintenance (mirror re-coating) - -
25 May0.00.00.0Telescope closed for maintenance (mirror re-coating) - -
24 May0.00.00.0Telescope closed for maintenance (mirror re-coating) - -
23 May3.50.03.8Photometric. IO:O shutter fault. Z T Z
22 May2.30.05.0Mostly photometric. IO:O shutter fault, RINGO-3 disk fault. Z T Z
21 May5.80.01.5Photometric. IO:O shutter fault. Z T Z
20 May4.30.03.0Mostly photometric. IO:O shutter fault. Z T Z
19 May3.20.04.1Non-photometric first half of night. IO:O shutter fault Z T Z
18 May5.40.02.0Photometric; light cirrus at end of night. IO:O shutter fault. Z T Z
17 May5.80.01.6Photometric. IO:O shutter fault. Z T Z
16 May4.92.50.0Non-photometric; high humidity at start of night. Z T Z
15 May7.40.00.0Photometric though some cloud towards end of night. Z T Z
14 May2.55.00.0Non-photometric; high humidity at times. Z T Z
13 May7.50.00.0Non-photometric, particularly first half of night. Z T Z
12 May6.51.00.0Non-photometric; high humidity around midnight Z T Z
11 May7.50.00.0Photometric Z T Z
10 May6.70.90.0Non-photometric. High cloud and wetness. Z T Z
9 May7.60.00.0Non-photometric. Z T Z
8 May7.60.00.0Non-photometric. Z T Z
7 May7.70.00.0Non-photometric. Z T Z
6 May7.70.00.0Non-photometric, high cloud. Z T Z
5 May7.80.00.0Non-photometric, Some high cloud at times. Z T Z
4 May0.07.80.0High humidity, cloud. No observing. - -
3 May7.90.00.0Photometric. Z T Z
2 May7.90.00.0Photometric. Z T Z
1 May7.90.00.0Photometric. Z T Z

April 2013

DateHours UsedCommentSkyCam
ObservingWeatherTechnicalZP PlotMovie
30 Apr0.87.10.0Non-photometric. High humidity, ice risk. Z T Z
29 Apr2.55.50.0Photometric. High humidity, ice risk later. Z T Z
28 Apr7.01.00.0Photometric, but localised high humidity at start of night. Z T Z
27 Apr8.00.00.0Non-photometric. Z T Z
26 Apr3.54.50.0Non-Photometric; closed at times due to thick, patchy cloud. Z T Z
25 Apr7.90.00.2Photometric; average seeing. A few mins lost to SFD problems. Z T Z
24 Apr8.10.00.0Non-photometric though probably clearing after 11pm. Z T Z
23 Apr8.10.00.0Non-Photometric but good seeing. Cloud quite thick at times. Z T Z
22 Apr7.00.01.1Non-Photometric but good seeing. DeviceNet error on run-up. Z T Z
21 Apr7.11.00.0Non-Photometric. Cirrus clearing towards end of night; good seeing. Z T Z
20 Apr0.08.20.0Thick cloud; high winds; calima. Opened briefly but poor data. - -
19 Apr8.20.00.0Non-photometric. Z T Z
18 Apr8.20.00.0Non-photometric. Windy - possibly resulting in poor image quality. Z Z
17 Apr8.30.00.0Photometric. Z Z
16 Apr8.40.00.0Photometric. Z Z
15 Apr8.40.00.0Photometric. Z Z
14 Apr8.50.00.0Photometric Z Z
13 Apr8.50.00.0Photometric Z Z
12 Apr8.60.00.0Photometric Z Z
11 Apr8.60.00.0Non-photometric Z A Z
10 Apr8.20.00.4Non-Photometric. IO:O offline. - A
9 Apr8.60.00.0Non-Photometric. IO:O / THOR offline. - A
8 Apr8.60.00.0Photometric. IO:O / THOR offline. Z A Z
7 Apr0.08.70.0High humidity; low temperature: risk of ice. IO:O / THOR offline. - -
6 Apr8.70.00.0Photometric at start of night. Clouds later. IO:O offline. Z A Z
5 Apr0.08.80.0High humidity. - -
4 Apr0.08.80.0High humidity. Closed due to ice on enclosure. - -
3 Apr0.08.80.0High humidity and freezing conditions continue. - -
2 Apr0.08.80.0High humidity and freezing temperatures all night. - -
1 Apr8.80.00.0Photometric. Z A Z

March 2013

DateHours UsedCommentSkyCam
ObservingWeatherTechnicalZP PlotMovie
31 Mar8.90.00.0Photometric. Z A Z
30 Mar8.90.00.0Non-photometric. Z A Z
29 Mar9.00.00.0Photometric. Z A Z
28 Mar7.00.02.0Non-photometric. Focus problem. Z A Z
27 Mar9.10.00.0Non-photometric. Z A Z
26 Mar0.09.10.0High humidity. - -
25 Mar9.10.00.0Photometric. Z A Z
24 Mar9.20.00.0Photometric. Z A Z
23 Mar9.20.00.0Non-photometric second half of night. Z A Z
22 Mar9.20.00.0Photometric. Z A Z
21 Mar0.09.20.0High humidity. - -
20 Mar9.30.00.0Mostly photometric with some thin cirrus last few hours. Z A Z
19 Mar9.30.00.0Photometric. Z A Z
18 Mar1.08.30.0High humidity; opened briefly just before dawn (poor seeing but clear). Z A Z
17 Mar9.40.00.0Non-photometric. Poor seeing. Z A Z
16 Mar0.09.40.0High wind and high humidity. - -
15 Mar4.05.40.0Non-photometric. Periods of high wind speed. Z A Z
14 Mar8.30.01.1Non-photometric. RCS restart. Z A Z
13 Mar9.40.00.0Non-photometric. Z A Z
12 Mar9.50.00.0Photometric. Z A Z
11 Mar9.50.00.0Photometric. Z A Z
10 Mar9.50.00.0Photometric. Z A Z
9 Mar9.60.00.0Non-photometric. Z A Z
8 Mar4.55.10.0Non-photometric. High humidity. Z A Z
7 Mar0.09.60.0High humidity, high winds. - -
6 Mar0.09.70.0High winds; no observing. - -
5 Mar0.09.70.0High humidity, high winds and ice risk; no observing. - -
4 Mar0.09.70.0High humidity, high winds and ice risk; no observing. - -
3 Mar0.09.80.0High humidity, high winds and ice risk; no observing. - -
2 Mar0.09.80.0High humidity and ice risk; no observing. - -
1 Mar0.09.80.0High humidity and ice risk; no observing. - -

February 2013

DateHours UsedCommentSkyCam
ObservingWeatherTechnicalZP PlotMovie
28 Feb4.55.30.0Non-photometric; patches of high humidity and thick cloud. Z A Z
27 Feb2.57.30.0Non-photometric; high humidity for most of night. Z A Z
26 Feb0.09.90.0High humidity all night. - -
25 Feb4.65.30.0Photometric at first, poor seeing. Cloud and high humidity in second half of night. Z A Z
24 Feb9.90.00.0Photometric; good seeing. Z A Z
23 Feb10.00.00.0Non-photometric. Z A Z
22 Feb8.71.30.0Photometric; short period of high humidity. Z A Z
21 Feb9.30.70.0Photometric; short spell of high humidity. Z A Z
20 Feb10.00.00.0Photometric; good seeing. Z A Z
19 Feb0.010.00.0Ice on enclosure; couldn't open. - -
18 Feb0.010.10.0High humidity and freezing temperatures. - -
17 Feb6.63.50.0Non-photometric. High humidity, cloud. Z T Z
16 Feb10.10.00.0Non-photometric. Z T Z
15 Feb10.10.00.0Photometric. Z T Z
14 Feb10.10.00.0Photometric. Z T Z
13 Feb5.25.00.0Non-photometric, high humidity, cloud. Z T Z
12 Feb10.20.00.0Non-photometric. Z T Z
11 Feb10.20.00.0Photometric. Z T Z
10 Feb10.20.00.0Photometric. Z T Z
9 Feb9.60.70.0Photometric. Short period of high humidity. Z T Z
8 Feb8.91.40.0Photometric. High humidity before twilight. Z T Z
7 Feb10.30.00.0Non-photometric. High humidity just after twilight began. Z T Z
6 Feb10.30.00.0Non-photometric. Z T Z
5 Feb0.010.40.0High levels of dust (Calima). No observing. - -
4 Feb10.40.00.0Non-photometric. Poor seeing. Z T Z
3 Feb10.40.00.0Photometric. Z T Z
2 Feb10.40.00.0Photometric. Z T Z
1 Feb10.40.00.0Photometric but poor seeing. Z T Z

January 2013

DateHours UsedCommentSkyCam
ObservingWeatherTechnicalZP PlotMovie
31 Jan10.10.00.4Photometric but poor seeing; AMN node reboot. - T Z
30 Jan10.50.00.0Photometric. - T Z
29 Jan10.50.00.0Photometric. - T Z
28 Jan10.60.00.0Photometric. - T Z
27 Jan10.60.00.0Photometric. - T Z
26 Jan0.010.60.0High humidity. - -
25 Jan10.10.50.0Non-photometric. High humidity. - T Z
24 Jan10.60.00.0Photometric. - T Z
23 Jan5.60.05.0Photometric? Enclosure PLC UPS fault. - T Z
22 Jan0.010.60.0High humidity. - -
21 Jan0.010.60.0High humidity. - -
20 Jan7.23.50.0Photometric? High humidity. - A
19 Jan7.03.70.0High winds. Photometric. - A
18 Jan10.70.00.0Photometric. - T Z
17 Jan10.70.00.0Photometric. - T Z
16 Jan10.70.00.0Non-photometric. - T Z
15 Jan10.70.00.0Photometric. - T Z
14 Jan10.70.00.0Non-photometric. RATCam offline for maintenance. - T Z
13 Jan10.70.00.0Photometric. - T Z
12 Jan10.70.00.0Photometric. - T Z
11 Jan10.70.00.0Non-photometric. - T Z
10 Jan10.80.00.0Non-photometric. - T Z
9 Jan10.80.00.0Photometric - T Z
8 Jan10.80.00.0Non-photometric. RATCam warm. - T Z
7 Jan10.80.00.0Non-photometric. - T Z
6 Jan10.80.00.0Non-photometric. - T Z
5 Jan10.80.00.0Non-photometric. - T Z
4 Jan10.80.00.0Photometric. - T Z
3 Jan10.80.00.0Non-photometric. - T Z
2 Jan10.80.00.0Photometric. - T Z
1 Jan10.90.00.0Photometric. - T Z