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Night Reports 2011

December 2011

Observing: 273.7 hours
Weather: 23.7 hours
Technical: 39.9 hours
Scheduled Maintenance: none

DateHours UsedComment
ObservingWeatherTechnical
31 Dec10.90.00.0Photometric
30 Dec7.93.00.0Non-photometric; high humidity
29 Dec8.42.50.0Non-photometric; high humidity
28 Dec7.43.50.0Non-photometric; high humidity
27 Dec10.90.00.0Photometric
26 Dec10.90.00.0Photometric
25 Dec10.90.00.0Photometric
24 Dec10.90.00.0Photometric
23 Dec10.90.00.0Photometric
22 Dec3.10.07.8Non-photometric; RCS fault
21 Dec10.90.00.0Photometric.
20 Dec0.00.010.9Wetness sensor failure.
19 Dec0.05.95.0High humidity. Weather station failure.
18 Dec10.90.00.0Photometric.
17 Dec10.90.00.0Photometric.
16 Dec10.90.00.0Photometric.
15 Dec10.90.00.0Non-photometric.
14 Dec10.90.00.0Photometric.
13 Dec10.90.00.0Photometric.
12 Dec10.90.00.0Photometric.
11 Dec10.30.60.0Photometric. Short period of rain.
10 Dec10.90.00.0Non-photometric.
9 Dec10.90.00.0Non-photometric. High wind at times.
8 Dec8.92.00.0Non-photometric. Thick cloud at times.
7 Dec10.90.00.0Non-photometric.
6 Dec4.66.20.0Non-photometric. Thick cloud at times.
5 Dec10.40.00.4Photometric. Cass node reboot.
4 Dec0.00.010.8FRODOSpec Fibre problem.
3 Dec5.80.05.0Photometric. Poor seeing. Power cut at 02:15.
2 Dec10.80.00.0Photometric. Poor seeing.
1 Dec10.80.00.0Photometric.

November 2011

Observing: 97.4 hours
Weather: 72.1 hours
Technical: 42.2 hours
Scheduled Maintenance: 105 hours

DateHours UsedComment
ObservingWeatherTechnical
30 Nov10.80.00.0Photometric.
29 Nov10.70.00.0Photometric.
28 Nov10.70.00.0Photometric.
27 Nov10.70.00.0Photometric.
26 Nov1.69.10.0Non-photometric. Wet conditions, cloud on-site.
25 Nov0.710.00.0Non-photometric. Wet conditions, cloud on-site.
24 Nov2.97.80.0High humidity and thick cloud. Non-photometric, poor seeing.
23 Nov0.00.010.7Weather station fault.
22 Nov4.66.10.0Photometric at start of night, but cloud & high humidity in morning.
21 Nov3.47.30.0Non-photometric. Thick cloud at start of night, high humidity at end.
20 Nov10.60.00.0Photometric.
19 Nov0.010.60.0High humidity.
18 Nov8.81.80.0Non-photometric. Thick cloud and high humidity in morning.
17 Nov10.60.00.0Photometric.
16 Nov0.00.00.0Scheduled maintenance (fitting IO:O).
15 Nov0.00.00.0Scheduled maintenance (fitting IO:O).
14 Nov0.00.00.0Scheduled maintenance (fitting IO:O).
13 Nov0.00.00.0Scheduled maintenance (fitting IO:O).
12 Nov0.00.00.0Scheduled maintenance (fitting IO:O).
11 Nov0.00.00.0Scheduled maintenance (fitting IO:O).
10 Nov0.00.00.0Scheduled maintenance (fitting IO:O).
9 Nov0.00.00.0Scheduled maintenance (fitting IO:O).
8 Nov0.00.00.0Scheduled maintenance (fitting IO:O).
7 Nov0.00.00.0Scheduled maintenance (fitting IO:O).
6 Nov0.00.010.4Weather station fault.
5 Nov0.00.010.4Weather station fault.
4 Nov0.00.010.4Weather station fault.
3 Nov0.010.40.0High-humidity, rain.
2 Nov1.39.00.0High-humidity, rain.
1 Nov10.00.00.3Non-photometric. Node reboot.

October 2011

Observing: 193.2 hours
Weather: 105.8 hours
Technical: 8.2 hours
Scheduled Maintenance: 0

DateHours UsedComment
ObservingWeatherTechnical
31 Oct10.20.00.0Photometric.
30 Oct5.54.70.0Non-photometric. Cloud.
29 Oct10.20.00.0Non-photometric.
28 Oct10.20.00.0Non-photometric.
27 Oct10.20.00.0Photometric.
26 Oct10.20.00.0Non-photometric.
25 Oct10.10.00.0Non-photometric.
24 Oct7.82.30.0Non-photometric, High humidity.
23 Oct10.10.00.0Non-photometric.
22 Oct6.82.01.3Non-photometric. High humidity; site mains power.
21 Oct0.010.10.0Cloud and high humidity.
20 Oct0.010.00.0Cloud and high humidity.
19 Oct0.010.00.0Cloud.
18 Oct0.010.00.0Cloud.
17 Oct8.01.90.0Non-photometric. Cloud.
16 Oct1.78.20.0Non-photometric; cloud
15 Oct1.48.50.0Non-photometric; cloud
14 Oct9.90.00.0Non-photometric
13 Oct9.80.00.0Non-photometric
12 Oct9.80.00.0Photometric
11 Oct9.80.00.0Photometric
10 Oct9.70.00.0Non-photometric
9 Oct9.70.00.0Photometric.
8 Oct2.80.06.9Photometric. Pyrometer problems.
7 Oct9.70.00.0Photometric.
6 Oct8.51.20.0Spectroscopic. Thin cloud and high winds.
5 Oct3.36.40.0Spectroscopic. Thick cloud.
4 Oct0.39.30.0Spectroscopic. Thick cloud.
3 Oct2.27.40.0Spectroscopic. High humidity.
2 Oct5.34.30.0High humidity, then spectroscopic.
1 Oct0.09.50.0High humidity, rain.

September 2011

Observing: 234.4 hours
Weather: 21.0 hours
Technical: 15.8 hours
Scheduled Maintenance: 0

DateHours UsedComment
ObservingWeatherTechnical
30 Sep9.50.00.0Photometric.
29 Sep9.50.00.0Photometric.
28 Sep9.40.00.0Photometric. RATCam data only.
27 Sep9.40.00.0Photometric. Science Fold problem.
26 Sep9.40.00.0Photometric. Science Fold problem.
25 Sep7.22.10.0Non-photometric, cloud
24 Sep9.30.00.0Photometric
23 Sep9.30.00.0Photometric
22 Sep0.09.20.0Thick cloud, high humidity.
21 Sep3.35.90.0Non-photometric, cloud and rain.
20 Sep8.90.00.3Non-photometric, AMN node reboot.
19 Sep9.20.00.0Non-photometric
18 Sep9.10.00.0Non photometric.
17 Sep9.10.00.0Photometric.
16 Sep9.10.00.0Photometric.
15 Sep9.00.00.0Photometric.
14 Sep9.00.00.0Non-photometric.
13 Sep9.00.00.0Photometric. Pointing tests.
12 Sep8.90.00.0Photometric.
11 Sep8.90.00.0Photometric.
10 Sep8.90.00.0Photometric.
9 Sep0.00.08.8Altitude fault (IRIG-B).
8 Sep5.03.80.0Non-photometric. Thick cloud at times.
7 Sep2.80.06.0Photometric. RATcam warming up.
6 Sep8.00.00.7Photometric. Autoguider offline. ALT tape problem.
5 Sep8.70.00.0Photometric. Autoguider offline.
4 Sep8.70.00.0Non-photometric. RATCam and autoguider offline.
3 Sep8.60.00.0Photometric. RATCam and autoguider offline.
2 Sep8.60.00.0Photometric. RATCam and autoguider offline.
1 Sep8.60.00.0Photometric.

August 2011

Observing: 206.7 hours
Weather: 31.8 hours
Technical: 11.1 hours
Scheduled Maintenance: 0

DateHours UsedComment
ObservingWeatherTechnical
31 Aug2.56.00.0Photometric. High humidity for most of night.
30 Aug8.00.00.5Photometric. ALT encoder fault.
29 Aug8.50.00.0Non-photometric.
28 Aug8.40.00.0Non-photometric.
27 Aug8.40.00.0Photometric.
26 Aug7.41.00.0Non-photometric. Thick cloud at times.
25 Aug0.08.30.0Thick cloud.
24 Aug1.07.30.0Non-Photometric. Thick cloud.
23 Aug8.30.00.0Photometric.
22 Aug8.20.00.0Photometric.
21 Aug8.00.00.2Photometric. Cass node reboot.
20 Aug8.20.00.0Non-Photometric.
19 Aug8.20.00.0Photometric.
18 Aug8.10.00.0Photometric.
17 Aug6.70.01.4Non-photometric. Secondary Microlynx error.
16 Aug8.10.00.0Photometric.
15 Aug2.24.81.0Photometric, then cloud. Secondary Microlynx error.
14 Aug8.00.00.0Photometric.
13 Aug8.00.00.0Photometric.
12 Aug7.90.00.0Photometric.
11 Aug7.90.00.0Photometric.
10 Aug6.90.01.0Photometric. TCS problem.
9 Aug0.80.07.0Photometric. Chiller fault.
8 Aug3.44.40.0Non-photometric. Cloud.
7 Aug7.80.00.0Photometric.
6 Aug7.70.00.0Non-photometric.
5 Aug7.70.00.0Non-photometric. Wind gusting.
4 Aug7.60.00.0Photometric.
3 Aug7.60.00.0Photometric. OMC reboot in morning
2 Aug7.60.00.0Non-photometric.
1 Aug7.60.00.0Non-photometric. Cloud

July 2011

Observing: 188.3 hours
Weather: 17.6 hours
Technical: 17.2 hours
Scheduled Maintenance: 0

DateHours UsedComment
ObservingWeatherTechnical
31 Jul7.60.00.0Photometric.
30 Jul0.07.50.0Calima.
29 Jul0.07.50.0Thick cloud.
28 Jul4.80.02.6Chiller fault, Non-photometric.
27 Jul7.40.00.0Photometric.
26 Jul7.40.00.0Photometric.
25 Jul7.40.00.0Photometric.
24 Jul7.40.00.0Photometric.
23 Jul7.30.00.0Photometric.
22 Jul7.30.00.0Photometric.
21 Jul7.30.00.0Photometric.
20 Jul7.30.00.0Photometric.
19 Jul4.62.60.0Photometric. High humidity in morning.
18 Jul7.20.00.0Photometric.
17 Jul7.20.00.0Photometric.
16 Jul4.70.02.5Non-photometric; focus mechanism stuck.
15 Jul7.10.00.0Non-photometric.
14 Jul0.00.07.1Chiller Fault.
13 Jul7.10.00.0Non-photometric (calima).
12 Jul7.10.00.0Photometric. RATCam u band filter unavailable.
11 Jul7.10.00.0Photometric. RATCam offline for maintenance.
10 Jul7.10.00.0Photometric,Cass reboot at startup.
9 Jul7.00.00.0Photometric.
8 Jul7.00.00.0Photometrc.
7 Jul7.00.00.0Photometric.
6 Jul2.00.05.0Photometric, RATCam cooling problem.
5 Jul7.00.00.0Photometric.
4 Jul7.00.00.0Photometric, Cass node reboot.
3 Jul7.00.00.0Photometric.
2 Jul7.00.00.0Photometric.
1 Jul6.90.00.0Photometric.

June 2011

Observing: 178.4 hours
Weather: 20.7 hours
Technical:8.5 hours
Scheduled Maintenance: 0

DateHours UsedComment
ObservingWeatherTechnical
30 Jun1.80.05.1Photometric. Oil chiller fault.
29 Jun4.60.02.3Photometric. Oil chiller fault.
28 Jun6.90.00.0Photometric.
27 Jun6.90.00.0Photometric.
26 Jun6.90.00.0Photometric.
25 Jun6.90.00.0Photometric.
24 Jun6.90.00.0Photometric.
23 Jun6.90.00.0Photometric.
22 Jun6.90.00.0Non-photometric. Autoguider cooling problem.
21 Jun5.21.70.0Photometric. Cloud. Frodospec cooling problem.
20 Jun6.80.00.0Non-photometric
19 Jun6.80.00.0Non-photometric
18 Jun6.80.00.0Photometric
17 Jun6.90.00.0Photometric
16 Jun6.90.00.0Photometric
15 Jun0.06.90.0Calima
14 Jun0.06.90.0Calima
13 Jun6.90.00.0Photometric
12 Jun6.90.00.0Photometric
11 Jun6.90.00.0Photometric
10 Jun6.90.00.0Photometric
9 Jun6.90.00.0Photometric.
8 Jun6.90.00.0Photometric.
7 Jun7.00.00.0Photometric.
6 Jun1.85.20.0Photometric. High humidity.
5 Jun6.10.00.9Photometric. Node 36 and Auxiliary Mech Node problems at startup.
4 Jun7.00.00.0Photometric.
3 Jun7.00.00.0Non-photometric. Windy.
2 Jun7.00.00.0Non-photometric.
1 Jun7.00.00.0Non-photometric.

May 2011

Observing: 182.4 hours
Weather: 38.4 hours
Technical: 10.0 hours
Scheduled Maintenance: 0

DateHours UsedComment
ObservingWeatherTechnical
31 May7.10.00.0Non-photometric
30 May6.11.00.0Photometric, but some cloud arrived in small hours
29 May7.10.00.0Non-photometric.
28 May7.10.00.0Photometric.
27 May7.10.00.0Photometric.
26 May1.75.50.0Rain, later Non-photometric.
25 May0.00.07.2Offline, RATCam maintenance.
24 May5.00.02.3Photometric. RATCam problem.
23 May4.03.30.0Non-photometric. Thick cloud.
22 May7.30.00.0Non-photometric.
21 May7.30.00.0Photometric.
20 May7.30.00.0Non-photometric.
19 May7.30.00.0Photometric.
18 May1.95.50.0High humidity most of night.
17 May6.01.40.0Photometric. High humidity.
16 May7.40.00.0Non-photometric?
15 May7.40.00.0Non-photometric.
14 May7.50.00.0Non-photometric.
13 May7.50.00.0Non-photometric.
12 May7.00.00.5Non-photometric, Cass node reboot.
11 May5.52.00.0Non-photometric, high humidity.
10 May7.60.00.0Non-photometric
9 May7.60.00.0Non-photometric, RATCam running warm.
8 May7.60.00.0Non-photometric, FRODOspec unavailable (blue arm CCD warm)
7 May7.70.00.0Photometric
6 May7.70.00.0Non-photometric
5 May3.93.90.0Non-photometric, thick cloud in second half of night.
4 May7.80.00.0Non-photometric
3 May7.90.00.0Photometric
2 May0.07.90.0High humidity, risk of ice on enclosure.
1 May0.07.90.0High humidity.

April 2011

Observing: 159.3 hours
Weather: 90.2 hours
Technical: 2.0 hours
Scheduled Maintenance: 0

DateHours UsedComment
ObservingWeatherTechnical
30 Apr0.07.90.0High humidity. Snow.
29 Apr0.08.00.0High humidity.
28 Apr0.08.00.0High humidity.
27 Apr0.08.00.0High humidity.
26 Apr4.04.00.0Non-photometric. High humidity.
25 Apr5.72.40.0Non-photometric. Thick cloud.
24 Apr8.10.00.0Photometric.
23 Apr8.10.00.0Photometric.
22 Apr1.76.40.0Photometric. High Humidity.
21 Apr8.10.00.0Non-photometric. No RATCam, some on-sky engineering.
20 Apr3.74.50.0Non-photometric. High humidity, low cloud.
19 Apr0.08.20.0High humidity.
18 Apr0.08.20.0High humidity, winds & rain.
17 Apr0.08.30.0High humidity, winds & rain.
16 Apr0.08.40.0High humidity, winds & rain.
15 Apr6.90.01.5Non-photometric. RISE problem.
14 Apr8.50.00.0Non-photometric.
13 Apr8.50.00.0Photometric.
12 Apr8.60.00.0Photometric.
11 Apr8.40.00.2Photometric. Azimuth axis problem.
10 Apr8.60.00.0Non-photometric.
9 Apr8.60.00.0Non-photometric.
8 Apr8.60.00.0Photometric.
7 Apr4.74.00.0Non-photometric. Low cloud blowing through.
6 Apr8.00.70.0Non-photometric. High winds before sunrise.
5 Apr8.50.00.3Non-photometric. Cass node reboot.
4 Apr7.71.10.0Non-photometric. High winds.
3 Apr8.80.00.0Photometric.
2 Apr6.72.10.0Non-photoetric. High humidity from wee hours onwards.
1 Apr8.80.00.0Non-photometric.

March 2011

Observing: 121.3 hours
Weather: 168.6 hours
Technical: 0.7 hours
Scheduled Maintenance: 0

DateHours UsedComment
ObservingWeatherTechnical
31 Mar8.90.00.0Photometric.
30 Mar8.90.00.0Photometric.
29 Mar9.00.00.0Photometric.
28 Mar9.00.00.0Photometric.
27 Mar9.10.00.0Photometric.
26 Mar8.70.00.4Photometric. Cass node reboot.
25 Mar9.10.00.0Photometric.
24 Mar3.26.00.0Non photometric. Thick cloud and high humidity at times.
23 Mar9.20.00.0Photometric.
22 Mar7.61.30.3Photometric. High humidity at times. Devicenet error on startup.
21 Mar9.20.00.0Photometric.
20 Mar0.09.30.0Ice on hydraulic pipes/landing portals.
19 Mar0.09.30.0 Ice on encoders/hydraulic pipes/landing portals.
18 Mar0.09.30.0Snow and ice.
17 Mar0.09.40.0Snow and ice.
16 Mar0.09.40.0Snow and ice.
15 Mar0.09.40.0Snow and ice.
14 Mar0.09.40.0Snow and ice.
13 Mar0.09.40.0Snow and ice.
12 Mar0.09.50.0Snow and ice.
11 Mar0.09.50.0Snow and ice.
10 Mar0.09.50.0Snow and ice.
9 Mar0.09.60.0Snow and ice.
8 Mar0.09.60.0Snow and ice.
7 Mar0.09.60.0Snow and ice.
6 Mar0.09.70.0Snow and ice.
5 Mar0.09.70.0Snow and ice.
4 Mar0.09.70.0Snow and ice.
3 Mar9.80.00.0Photometric.
2 Mar9.80.00.0Photometric.
1 Mar9.80.00.0Photometric.

February 2011

Observing: 188.7 hours
Weather: 79.6 hours
Technical: 15.7 hours
Scheduled Maintenance: 0

DateHours UsedComment
ObservingWeatherTechnical
28 Feb9.80.00.0Photometric.
27 Feb9.80.00.0Photometric.
26 Feb9.90.00.0Photometric.
25 Feb9.70.00.2Photometric. Alt encoder fault.
24 Feb9.90.00.0Photometric.
23 Feb10.00.00.0Photometric.
22 Feb10.00.00.0Photometric.
21 Feb10.00.00.0Non-photometric; poor seeing.
20 Feb10.00.00.0Non-photometric.
19 Feb10.00.00.0Non-photometric.
18 Feb10.10.00.0Non-photometric.
17 Feb10.10.00.0Photometric.
16 Feb10.10.00.0Photometric.
15 Feb0.010.10.0High humidity.
14 Feb5.15.00.0Photometric. High humidity at times.
13 Feb1.58.70.0Non-photometric. Humidity at start.
12 Feb9.21.00.0Non-photometric. Cloud.
11 Feb0.010.20.0Snow and ice risk.
10 Feb0.010.30.0Snow and ice.
9 Feb0.010.30.0Snow and ice.
8 Feb0.00.010.3ALT node problem.
7 Feb9.00.01.3Non-photometric. Science Fold problems at start.
6 Feb10.20.00.2Photometric. Cass node reboot.
5 Feb6.70.03.7Non-photometric. RCS error.
4 Feb8.42.00.0Non-photometric, weathered later.
3 Feb9.21.20.0Non-photometric, weathered for a short period.
2 Feb010.40.0Ice.
1 Feb0.010.40.0Snow and ice.

January 2011

Observing: 159.1 hours
Weather: 140.2 hours
Technical: 32.2 hours
Scheduled Maintenance: 0

DateHours UsedComment
ObservingWeatherTechnical
31 Jan0.010.50.0Snow and ice.
30 Jan0.010.50.0Snow and ice.
29 Jan0.010.50.0Snow and ice.
28 Jan0.010.60.0Snow and ice.
27 Jan0.010.60.0Snow and ice.
26 Jan0.010.60.0Snow and ice.
25 Jan0.010.60.0Snow and ice.
24 Jan0.010.60.0High humidity, ice risk.
23 Jan0.010.60.0High humidity. Ice.
22 Jan0.010.60.0High humidity. Ice.
21 Jan0.010.60.0High humidity. Ice.
20 Jan0.010.70.0High humidity.
19 Jan6.50.04.2Photometric. Cass node reboot. TCS reboot/RCS init error.
18 Jan10.70.00.0Non-photometric.
17 Jan10.70.00.0Non-photometric.
16 Jan0.70.010.0Non-photometric. RATCam offline.
15 Jan3.70.07.0Non-photometric. RATCam offline.
14 Jan10.70.00.0Non-photometric.
13 Jan10.70.00.0Non-photometric.
12 Jan10.70.00.0Non-photometric.
11 Jan10.70.00.0Photometric. Poor seeing.
10 Jan10.80.00.0Photometric.
9 Jan7.80.03.0Non-photometric. FRODOSpec fault hangs system.
8 Jan2.03.95.0Non-photometric. FRODOSpec fault hangs system. High humidity.
7 Jan5.25.60.0Non-photometric. High humidity at times.
6 Jan7.80.03.0Non-photometric. FRODOSpec fault hangs system.
5 Jan7.13.70.0Photometric. High humidity at times.
4 Jan10.80.00.0Non-photometric.
3 Jan10.80.00.0Non-photometric.
2 Jan10.80.00.0Non-photometric.
1 Jan10.90.00.0Non-photometric.