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Night Reports 2009
December 2009
Observing: 127.3 hours
Weather Loss: 198.5 hours
Technical Loss: 14.2 hours
Scheduled Maintenance: 0.0 hours
| Date | Hours Used | Comment | ||
|---|---|---|---|---|
| Observing | Weather | Technical | ||
| 31 Dec | 10.9 | 0.0 | 0.0 | Photometric? |
| 30 Dec | 5.0 | 3.0 | 2.9 | Photometric? RATCam fault. High humidity. |
| 29 Dec | 0.0 | 10.9 | 0.0 | High winds. |
| 28 Dec | 0.0 | 10.9 | 0.0 | High winds. |
| 27 Dec | 3.0 | 7.9 | 0.0 | Non-photometric. High winds. |
| 26 Dec | 10.9 | 0.0 | 0.0 | Non-photometric. |
| 25 Dec | 0.0 | 10.9 | 0.0 | Merry Xmas! High humidity. |
| 24 Dec | 0.0 | 10.9 | 0.0 | High humidity. |
| 23 Dec | 0.0 | 10.9 | 0.0 | High humidity. |
| 22 Dec | 0.0 | 10.9 | 0.0 | High humidity. |
| 21 Dec | 0.0 | 10.9 | 0.0 | High humidity. |
| 20 Dec | 0.0 | 10.9 | 0.0 | High humidity. |
| 19 Dec | 5.6 | 5.3 | 0.0 | Non-photometric. High humidity. |
| 18 Dec | 0.0 | 10.9 | 0.0 | High humidity. |
| 17 Dec | 0.0 | 10.9 | 0.0 | High humidity. |
| 16 Dec | 0.0 | 10.9 | 0.0 | High humidity. |
| 15 Dec | 0.0 | 10.9 | 0.0 | High humidity. |
| 14 Dec | 0.0 | 10.9 | 0.0 | High humidity. |
| 13 Dec | 0.0 | 10.9 | 0.0 | High humidity. |
| 12 Dec | 0.0 | 10.9 | 0.0 | High humidity. |
| 11 Dec | 0.0 | 10.9 | 0.0 | High humidity. |
| 10 Dec | 7.6 | 2.9 | 0.4 | Non-photometric. High winds & High humidity. Cass Torque Errors |
| 9 Dec | 0.0 | 0.0 | 10.9 | PLC fault. |
| 8 Dec | 10.9 | 0.0 | 0.0 | Photometric. |
| 7 Dec | 10.9 | 0.0 | 0.0 | Photometric. |
| 6 Dec | 10.8 | 0.0 | 0.0 | Photometric. |
| 5 Dec | 10.8 | 0.0 | 0.0 | Photometric. |
| 4 Dec | 10.8 | 0.0 | 0.0 | Photometric. |
| 3 Dec | 10.8 | 0.0 | 0.0 | Photometric. |
| 2 Dec | 8.5 | 2.3 | 0.0 | Photometric; high humidity. |
| 1 Dec | 10.8 | 0.0 | 0.0 | Photometric. |
November 2009
Observing: 211.0 hours
Weather Loss: 88.3 hours
Technical Loss: 9.3 hours
Scheduled Maintenance: 8.4 hours
| Date | Hours Used | Comment | ||
|---|---|---|---|---|
| Observing | Weather | Technical | ||
| 30 Nov | 0.3 | 10.5 | 0.0 | Non-photometric. High humidity most of night. |
| 29 Nov | 7.9 | 2.8 | 0.0 | Photometric. High humidity. |
| 28 Nov | 4.8 | 5.9 | 0.0 | Photometric. High humidity. |
| 27 Nov | 7.2 | 0.0 | 0.0 | Non-photometric. 3.5 hours scheduled maintenance at start of night. |
| 26 Nov | 6.7 | 1.5 | 0.5 | Non-photometric. Thick cloud; two hours scheduled maintenance plus TCS focus problem (0.5h). |
| 25 Nov | 8.3 | 0.0 | 0.9 | Photometric; RCS/instrument software problem. Plus 1.5h scheduled maintenance. |
| 24 Nov | 9.3 | 0.0 | 0.0 | Photometric; 1.4h of scheduled maintenance at start of night. |
| 23 Nov | 7.6 | 3.1 | 0.0 | Non-photometric; high humidity. |
| 22 Nov | 0.0 | 10.7 | 0.0 | Thick cloud. |
| 21 Nov | 10.7 | 0.0 | 0.0 | Non-photometric. |
| 20 Nov | 8.0 | 2.6 | 0.0 | Photometric? High winds before dawn. |
| 19 Nov | 5.4 | 0.0 | 5.2 | Photometric. ALT node reboot in middle of night; RATCam vacuum loss second half of night. |
| 18 Nov | 6.0 | 4.6 | 0.0 | Photometric. High humidity & cloud. |
| 17 Nov | 0.0 | 10.6 | 0.0 | High humidity. |
| 16 Nov | 0.9 | 9.7 | 0.0 | Non-photometric. High humidity until end of night. |
| 15 Nov | 6.2 | 4.4 | 0.0 | Photometric. High humidity at evening & morning. |
| 14 Nov | 10.5 | 0.1 | 0.0 | Photometric. High winds near morning twilight. |
| 13 Nov | 10.6 | 0.0 | 0.0 | Photometric. |
| 12 Nov | 10.5 | 0.0 | 0.0 | Photometric. |
| 11 Nov | 10.5 | 0.0 | 0.0 | Photometric. |
| 10 Nov | 5.5 | 5.0 | 0.0 | Photometric. High humidty at times. |
| 9 Nov | 9.9 | 0.6 | 0.0 | Photometric. Poor seeing. High humidity spike. |
| 8 Nov | 10.5 | 0.0 | 0.0 | Poor seeing. Photometric? |
| 7 Nov | 5.8 | 4.6 | 0.0 | High humidity first half. Poor Seeing. Non-photometric. |
| 6 Nov | 10.4 | 0.0 | 0.0 | Photometric. |
| 5 Nov | 0.0 | 10.4 | 0.0 | High humidity. |
| 4 Nov | 7.8 | 0.3 | 2.3 | Photometric. High humidity; RCS not in OPER. |
| 3 Nov | 9.5 | 0.9 | 0.0 | Photometric. High humidity at dawn. |
| 2 Nov | 9.9 | 0.0 | 0.4 | Non-photometric. RCS upgrade in evening. |
| 1 Nov | 10.3 | 0.0 | 0.0 | Non-photometric. |
October 2009
Observing: 241.8 hours
Weather Loss: 36.7 hours
Technical Loss: 8.9 hours
Scheduled Maintenance: 19.8 hours
| Date | Hours Used | Comment | ||
|---|---|---|---|---|
| Observing | Weather | Technical | ||
| 31 Oct | 10.2 | 0.0 | 0.0 | Photometric. |
| 30 Oct | 10.2 | 0.0 | 0.0 | Photometric. |
| 29 Oct | 10.2 | 0.0 | 0.0 | Photometric. |
| 28 Oct | 0.5 | 9.7 | 0.0 | Non-photometric; high humidity. |
| 27 Oct | 6.8 | 3.4 | 0.0 | Non-photometric. High humidity & rain in early morning. |
| 26 Oct | 10.2 | 0.0 | 0.0 | Non-photometric. |
| 25 Oct | 10.1 | 0.0 | 0.0 | Photometric. |
| 24 Oct | 10.1 | 0.0 | 0.0 | Non-photometric. |
| 23 Oct | 9.9 | 0.0 | 0.2 | Photometric; Cassegrain node reboot. |
| 22 Oct | 10.1 | 0.0 | 0.0 | Non-photometric. |
| 21 Oct | 0.0 | 3.0 | 7.1 | High humidity. Cloud camera failure. |
| 20 Oct | 8.5 | 1.5 | 0.0 | Non-photometric; high humidity at end of night. |
| 19 Oct | 8.9 | 0.8 | 0.3 | Non-photometric. Cassegrain torque errors causing node reboot, high humidity. Poor seeing. |
| 18 Oct | 1.5 | 8.5 | 0.0 | Non-photometric; high humidity. |
| 17 Oct | 0.0 | 0.0 | 0.0 | Scheduled maintenance. |
| 16 Oct | 0.0 | 0.0 | 0.0 | Scheduled maintenance. |
| 15 Oct | 9.9 | 0.0 | 0.0 | Non-photometric. |
| 14 Oct | 9.9 | 0.0 | 0.0 | Non-photometric. |
| 13 Oct | 9.8 | 0.0 | 0.0 | Non-photometric. |
| 12 Oct | 9.5 | 0.0 | 0.3 | Photometric. Azimuth node reboot. |
| 11 Oct | 9.5 | 0.0 | 0.3 | Non-photometric; Azimuth node reboot. |
| 10 Oct | 9.7 | 0.0 | 0.0 | Non-photometric. |
| 9 Oct | 9.7 | 0.0 | 0.0 | Non-photometric. |
| 8 Oct | 9.7 | 0.0 | 0.0 | Non-photometric. |
| 7 Oct | 9.4 | 0.0 | 0.3 | Photometric. Cassegrain node reboot. |
| 6 Oct | 9.7 | 0.0 | 0.0 | Non-photometric? |
| 5 Oct | 5.2 | 4.5 | 0.0 | Non-photometric. High humidity at start of night, wind spike in early hours. |
| 4 Oct | 7.2 | 2.4 | 0.0 | Non-photometric; high wind speeds at times. |
| 3 Oct | 9.2 | 0.0 | 0.4 | Photometric; AMN node reboot. |
| 2 Oct | 9.6 | 0.0 | 0.0 | Photometric |
| 1 Oct | 6.6 | 2.9 | 0.0 | Non-photometric; high humidity at start of night. |
September 2009
Observing: 177.7 hours
Weather Loss: 98.0 hours
Technical Loss: 4.7 hours
Scheduled Maintenance: 0.0 hours
| Date | Hours Used | Comment | ||
|---|---|---|---|---|
| Observing | Weather | Technical | ||
| 30 Sep | 0.0 | 9.5 | 0.0 | High humidity. |
| 29 Sep | 0.0 | 9.5 | 0.0 | High humidity. |
| 28 Sep | 0.0 | 9.4 | 0.0 | High humidity. |
| 27 Sep | 0.0 | 9.4 | 0.0 | High humidity. |
| 26 Sep | 9.4 | 0.0 | 0.0 | Photometric. |
| 25 Sep | 9.3 | 0.0 | 0.0 | Photometric. |
| 24 Sep | 8.8 | 0.0 | 0.5 | Photometric. Cass torque errors leading to node reboot. |
| 23 Sep | 9.3 | 0.0 | 0.0 | Photometric. |
| 22 Sep | 9.2 | 9.2 | 0.0 | Thick cloud & High winds. |
| 21 Sep | 0.0 | 9.2 | 0.0 | Thick cloud. |
| 20 Sep | 0.0 | 9.2 | 0.0 | High humidity. |
| 19 Sep | 6.2 | 3.0 | 0.0 | High humidity at start of night, completely overcast at end of night. |
| 18 Sep | 0.0 | 9.1 | 0.0 | High humidity. |
| 17 Sep | 7.2 | 1.6 | 0.3 | Non-photometric. Scattered cloud with bout of high humidity. Azimuth node reboot. |
| 16 Sep | 0.1 | 5.3 | 3.7 | Non-photometric. High humidity first half of night; RCS problems for rest of night. |
| 15 Sep | 5.0 | 3.8 | 0.2 | Non-photometric. Some cloud & bouts of high humidity. Azimuth node reboot. |
| 14 Sep | 8.0 | 1.0 | 0.0 | Non-photometric. Some cloud & humidity spike. |
| 13 Sep | 9.0 | 0.0 | 0.0 | Photometric |
| 12 Sep | 8.9 | 0.0 | 0.0 | Photometric |
| 11 Sep | 8.9 | 0.0 | 0.0 | Photometric |
| 10 Sep | 8.9 | 0.0 | 0.0 | Photometric? |
| 9 Sep | 8.8 | 0.0 | 0.0 | Photometric. |
| 8 Sep | 8.8 | 0.0 | 0.0 | Non-photometric. |
| 7 Sep | 0.0 | 8.8 | 0.0 | Thick Cloud. |
| 6 Sep | 8.7 | 0.0 | 0.0 | Non-photometric. |
| 5 Sep | 8.7 | 0.0 | 0.0 | Photometric. |
| 4 Sep | 8.7 | 0.0 | 0.0 | Photometric. |
| 3 Sep | 8.6 | 0.0 | 0.0 | Photometric. |
| 2 Sep | 8.6 | 0.0 | 0.0 | Photometric. |
| 1 Sep | 8.6 | 0.0 | 0.0 | Photometric. |
August 2009
Observing: 206.9 hours
Weather Loss: 7.0 hours
Technical Loss: 0.9 hours
Scheduled Maintenance: 31.9 hours
| Date | Hours Used | Comment | ||
|---|---|---|---|---|
| Observing | Weather | Technical | ||
| 31 Aug | 8.0 | 0.0 | 0.5 | Non-photometric. ALT node reboot. |
| 30 Aug | 1.5 | 7.0 | 0.0 | Non-photometric. Thick cloud for much of night. |
| 29 Aug | 8.5 | 0.0 | 0.0 | Non-photometric. |
| 28 Aug | 8.4 | 0.0 | 0.0 | Non-photometric. |
| 27 Aug | 8.4 | 0.0 | 0.0 | Photometric? |
| 26 Aug | 8.4 | 0.0 | 0.0 | Photometric. |
| 25 Aug | 8.3 | 0.0 | 0.0 | Photometric. |
| 24 Aug | 8.3 | 0.0 | 0.0 | Photometric. Observations with RISE instrument only. |
| 23 Aug | 8.3 | 0.0 | 0.0 | Photometric. |
| 22 Aug | 8.2 | 0.0 | 0.0 | Photometric. |
| 21 Aug | 8.2 | 0.0 | 0.0 | Non-photometric. |
| 20 Aug | 8.2 | 0.0 | 0.0 | Non-photometric. Lots of calima. |
| 19 Aug | 8.2 | 0.0 | 0.0 | Non-photometric. |
| 18 Aug | 8.1 | 0.0 | 0.0 | Photometric. |
| 17 Aug | 8.1 | 0.0 | 0.0 | |
| 16 Aug | 8.1 | 0.0 | 0.0 | |
| 15 Aug | 8.1 | 0.0 | 0.0 | |
| 14 Aug | 8.0 | 0.0 | 0.0 | |
| 13 Aug | 8.0 | 0.0 | 0.0 | |
| 12 Aug | 7.5 | 0.0 | 0.4 | Non-photometric. Cass node reboot. |
| 11 Aug | 0.0 | 0.0 | 0.0 | Pointing Test. |
| 10 Aug | 7.9 | 0.0 | 0.0 | Photometric. |
| 9 Aug | 7.8 | 0.0 | 0.0 | Photometric. |
| 8 Aug | 7.0 | 0.0 | 0.0 | Non-photometric; 0.8h scheduled RCS commissioning. |
| 7 Aug | 2.9 | 0.0 | 0.0 | Non-photometric; 4.9h scheduled RCS commissioning. |
| 6 Aug | 7.5 | 0.0 | 0.0 | Non-photometric. More RCS commissioning (0.2h). |
| 5 Aug | 7.6 | 0.0 | 0.0 | Photometric & 0.1h scheduled commissioning of new RCS. |
| 4 Aug | 6.6 | 0.0 | 0.0 | Photometric & 1h scheduled commissioning of new RCS. |
| 3 Aug | 3.6 | 0.0 | 0.0 | Photometric & 4h scheduled commissioning of new RCS. |
| 2 Aug | 0.6 | 0.0 | 0.0 | Non-photometric & 7h scheduled FRODOSpec commissioning. |
| 1 Aug | 1.6 | 0.0 | 0.0 | Non-photometric & 6h scheduled FRODOSpec commissioning. |
July 2009
Observing: 146.1 hours
Weather Loss: 7.8 hours
Technical Loss: 66.7 hours
Scheduled Maintenance: 2.5 hours
| Date | Hours Used | Comment | ||
|---|---|---|---|---|
| Observing | Weather | Technical | ||
| 31 Jul | 5.1 | 0.0 | 0.0 | Non-photometric & 2.5h scheduled FRODOSpec commissioning. |
| 30 Jul | 0.0 | 7.5 | 0.0 | Calima. |
| 29 Jul | 7.5 | 0.0 | 0.0 | Some autoguider testing/debugging |
| 28 Jul | 4.9 | 0.0 | 2.5 | Autoguider and TCS problems |
| 27 Jul | 7.4 | 0.0 | 0.0 | Photometric. |
| 26 Jul | 7.4 | 0.0 | 0.0 | Photometric. |
| 25 Jul | 0.8 | 0.0 | 6.6 | Photometric. Site wide mains failure. |
| 24 Jul | 7.0 | 0.0 | 0.4 | Photometric? Cas node reboot. |
| 23 Jul | 7.0 | 0.3 | 0.0 | Non-photometric. Thick cloud at times. |
| 22 Jul | 7.3 | 0.0 | 0.0 | Non-photometric? |
| 21 Jul | 7.3 | 0.0 | 0.0 | Non-photometric. |
| 20 Jul | 7.3 | 0.0 | 0.0 | Non-photometric. |
| 19 Jul | 7.2 | 0.0 | 0.0 | Photometric. |
| 18 Jul | 3.8 | 0.0 | 3.4 | Non-photometric; chiller fault. |
| 17 Jul | 7.2 | 0.0 | 0.0 | Photometric. |
| 16 Jul | 4.7 | 0.0 | 2.5 | Chiller fault (2 hrs). Cas node reboot (0.5 hrs). Photometric? |
| 15 Jul | 7.1 | 0.0 | 0.0 | Photometric. |
| 14 Jul | 7.1 | 0.0 | 0.0 | Photometric. |
| 13 Jul | 7.1 | 0.0 | 0.0 | Photometric. |
| 12 Jul | 7.1 | 0.0 | 0.0 | Photometric. |
| 11 Jul | 6.8 | 0.0 | 0.3 | Photometric. Azimuth node reboot. |
| 10 Jul | 6.9 | 0.0 | 0.2 | Non-photometric. TCS node reboot. |
| 9 Jul | 7.0 | 0.0 | 0.0 | Non-photometric |
| 8 Jul | 5.1 | 0.0 | 1.9 | Maintenance & calibration in evening. Photometric. |
| 7 Jul | 0.0 | 0.0 | 7.0 | Azimuth Motor Amplifier Failure. |
| 6 Jul | 0.0 | 0.0 | 7.0 | Azimuth Motor Amplifier Failure. |
| 5 Jul | 0.0 | 0.0 | 7.0 | Azimuth Motor Amplifier Failure. |
| 4 Jul | 0.0 | 0.0 | 7.0 | Azimuth Motor Amplifier Failure. |
| 3 Jul | 0.0 | 0.0 | 7.0 | Azimuth Motor Amplifier Failure. |
| 2 Jul | 0.0 | 0.0 | 7.0 | Azimuth Motor Amplifier Failure. |
| 1 Jul | 0.0 | 0.0 | 6.9 | Azimuth Motor Amplifier Failure. |
June 2009
Observing: 167.4 hours
Weather Loss: 32.9 hours
Technical Loss: 7.1 hours
Scheduled Maintenance: 0.0 hours
| Date | Hours Used | Comment | ||
|---|---|---|---|---|
| Observing | Weather | Technical | ||
| 30 Jun | 1.5 | 0.0 | 5.4 | Photometric. RISE lockup. |
| 29 Jun | 6.9 | 0.0 | 0.0 | Photometric. |
| 28 Jun | 3.0 | 3.9 | 0.0 | High humidity at start and end of night. Non-photometric. |
| 27 Jun | 6.9 | 0.0 | 0.0 | Non-photometric. |
| 26 Jun | 6.9 | 0.0 | 0.0 | Photometric. |
| 25 Jun | 6.9 | 0.0 | 0.0 | Photometric. |
| 24 Jun | 6.9 | 0.0 | 0.0 | Photometric. |
| 23 Jun | 6.9 | 0.0 | 0.0 | Photometric; RATCam observations only. |
| 22 Jun | 6.9 | 0.0 | 0.0 | Non-photometric. |
| 21 Jun | 0.0 | 6.9 | 0.0 | Thick cloud all night. |
| 20 Jun | 6.8 | 0.0 | 0.0 | Photometric. |
| 19 Jun | 6.8 | 0.0 | 0.0 | Photometric. |
| 18 Jun | 5.0 | 1.8 | 0.0 | Non-photometric. High humidity at start and end of night. |
| 17 Jun | 0.0 | 6.9 | 0.0 | High humidity. |
| 16 Jun | 0.0 | 6.9 | 0.0 | High humidity. |
| 15 Jun | 0.4 | 6.5 | 0.0 | Non-photometric. High humidity most of night. |
| 14 Jun | 6.9 | 0.0 | 0.0 | Photometric. |
| 13 Jun | 5.2 | 0.0 | 1.7 | Photometric. Incoming mains supply failure. |
| 12 Jun | 6.9 | 0.0 | 0.0 | Photometric. |
| 11 Jun | 6.9 | 0.0 | 0.0 | Photometric; poor seeing. |
| 10 Jun | 6.9 | 0.0 | 0.0 | Photometric. |
| 9 Jun | 6.9 | 0.0 | 0.0 | Photometric. |
| 8 Jun | 6.9 | 0.0 | 0.0 | Photometric; Encoder nonlinearity model upgrade. |
| 7 Jun | 7.0 | 0.0 | 0.0 | Photometric. |
| 6 Jun | 7.0 | 0.0 | 0.0 | Photometric. |
| 5 Jun | 7.0 | 0.0 | 0.0 | Encoder Non-Linearity data collection. |
| 4 Jun | 7.0 | 0.0 | 0.0 | Photometric. |
| 3 Jun | 7.0 | 0.0 | 0.0 | Photometric. |
| 2 Jun | 7.0 | 0.0 | 0.0 | Photometric. SupIRCam offline. |
| 1 Jun | 7.0 | 0.0 | 0.0 | Photometric. SupIRCam offline. |
May 2009
Observing: 195.5 hours
Weather Loss: 9.2 hours
Technical Loss: 3.3 hours
Scheduled Maintenance: 22.8 hours
| Date | Hours Used | Comment | ||
|---|---|---|---|---|
| Observing | Weather | Technical | ||
| 31 May | 7.1 | 0.0 | 0.0 | Photometric. |
| 30 May | 7.1 | 0.0 | 0.0 | Photometric. |
| 29 May | 7.1 | 0.0 | 0.0 | Photometric. |
| 28 May | 7.1 | 0.0 | 0.0 | Photometric. |
| 27 May | 7.1 | 0.0 | 0.0 | Non-photometric. |
| 26 May | 7.2 | 0.0 | 0.0 | Photometric; poor seeing. |
| 25 May | 7.2 | 0.0 | 0.0 | Photometric. |
| 24 May | 7.2 | 0.0 | 0.1 | Non-photometric. Az node reboot. |
| 23 May | 6.9 | 0.0 | 0.4 | Non-photometric. Alt node reboot. |
| 22 May | 5.3 | 0.0 | 2.0 | Node 36 error at startup. |
| 21 May | 6.7 | 0.6 | 0.0 | Non-photometric. High humidity. |
| 20 May | 1.5 | 5.8 | 0.0 | Non-photometric. High winds. |
| 19 May | 7.3 | 0.0 | 0.0 | Photometric. |
| 18 May | 7.4 | 0.0 | 0.0 | Photometric. |
| 17 May | 6.9 | 0.0 | 0.5 | Photometric. Az & alt node reboots (encoder nonlinearity apply errors). |
| 16 May | 7.4 | 0.0 | 0.0 | Non-photometric |
| 15 May | 7.4 | 0.0 | 0.0 | Non-photometric |
| 14 May | 7.2 | 0.0 | 0.3 | Photometric. Alt node reboot (encoder nonlinearity apply error). |
| 13 May | 7.5 | 0.0 | 0.0 | Photometric |
| 12 May | 7.5 | 0.0 | 0.0 | Photometric |
| 11 May | 7.5 | 0.0 | 0.0 | Photometric |
| 10 May | 0.0 | 0.0 | 0.0 | Scheduled Maintenance. |
| 9 May | 0.0 | 0.0 | 0.0 | Scheduled Maintenance. |
| 8 May | 0.0 | 0.0 | 0.0 | Scheduled Maintenance. |
| 7 May | 4.9 | 2.8 | 0.0 | Non-photometric. High winds. Poor seeing. |
| 6 May | 7.7 | 0.0 | 0.0 | Photometric? |
| 5 May | 7.8 | 0.0 | 0.0 | Photometric? |
| 4 May | 7.8 | 0.0 | 0.0 | Photometric. |
| 3 May | 7.9 | 0.0 | 0.0 | Photometric. |
| 2 May | 7.9 | 0.0 | 0.0 | Photometric, poor seeing. |
| 1 May | 7.9 | 0.0 | 0.0 | Most of night used for pointing tests. Non-photometric. |
April 2009
Observing: 199.7 hours
Weather Loss: 49.2 hours
Technical Loss: 2.6 hours
Scheduled Maintenance: 0.0 hours
| Date | Hours Used | Comment | ||
|---|---|---|---|---|
| Observing | Weather | Technical | ||
| 30 Apr | 0.0 | 7.9 | 0.0 | Thick cloud. |
| 29 Apr | 8.0 | 0.0 | 0.0 | Non-photometric. |
| 28 Apr | 7.7 | 0.0 | 0.3 | Photometric. Alt node reboot. |
| 27 Apr | 8.0 | 0.0 | 0.0 | Photometric. |
| 26 Apr | 0.7 | 7.3 | 0.0 | Mostly high humidity. |
| 25 Apr | 0.0 | 8.1 | 0.0 | Thick cloud. |
| 24 Apr | 8.1 | 0.0 | 0.0 | Non-photometric. |
| 23 Apr | 8.1 | 0.0 | 0.0 | Photometric? |
| 22 Apr | 7.8 | 0.0 | 0.3 | Non-photometric; azimuth node reboot around midnight |
| 21 Apr | 8.1 | 0.0 | 0.0 | Photometric |
| 20 Apr | 8.2 | 0.0 | 0.0 | Photometric; poor seeing |
| 19 Apr | 8.2 | 0.0 | 0.0 | Photometric. |
| 18 Apr | 7.9 | 0.0 | 0.3 | Photometric. Alt Node reboot. |
| 17 Apr | 8.3 | 0.0 | 0.0 | Photometric. |
| 16 Apr | 8.4 | 0.0 | 0.0 | Photometric. |
| 15 Apr | 8.4 | 0.0 | 0.0 | Photometric. |
| 14 Apr | 8.5 | 0.0 | 0.0 | Photometric. |
| 13 Apr | 8.3 | 0.0 | 0.2 | Non-photometric. Altitude node reboot. |
| 12 Apr | 8.6 | 0.0 | 0.0 | Non-photometric. |
| 11 Apr | 4.2 | 3.1 | 1.3 | Photometric. High humidity after midnight. Panel 36 comms problem. |
| 10 Apr | 8.4 | 0.0 | 0.2 | Photometric. Cassegrain node reboot (not torque-related) |
| 9 Apr | 3.1 | 5.5 | 0.0 | Non-photometric. High humidity. |
| 8 Apr | 0.0 | 8.6 | 0.0 | Calima; no observing |
| 7 Apr | 0.0 | 8.7 | 0.0 | Calima; no observing |
| 6 Apr | 8.7 | 0.0 | 0.0 | Photometric |
| 5 Apr | 8.8 | 0.0 | 0.0 | Photometric? |
| 4 Apr | 8.8 | 0.0 | 0.0 | FRODOSpec commissioning until 22:30UT. Non-photometric. |
| 3 Apr | 8.8 | 0.0 | 0.0 | FRODOSpec commissioning until 23UT. Photometric? |
| 2 Apr | 8.8 | 0.0 | 0.0 | Photometric. |
| 1 Apr | 8.8 | 0.0 | 0.0 | Photometric. |
March 2009
Observing: 126.5 hours
Weather Loss: 110.3 hours
Technical Loss: 16.1 hours
Scheduled Maintenance: 37.2 hours
| Date | Hours Used | Comment | ||
|---|---|---|---|---|
| Observing | Weather | Technical | ||
| 31 Mar | 8.6 | 0.0 | 0.3 | Photometric; cassegrain node reboot (not torque error related) |
| 30 Mar | 8.9 | 0.0 | 0.0 | Photometric |
| 29 Mar | 9.0 | 0.0 | 0.0 | Photometric |
| 28 Mar | 6.9 | 2.1 | 0.0 | High humidity at start of night & near dawn; non-photometric |
| 27 Mar | 0.0 | 9.1 | 0.0 | Ice & high humidity |
| 26 Mar | 0.0 | 9.1 | 0.0 | Ice & high humidity |
| 25 Mar | 0.0 | 9.1 | 0.0 | Ice & snow |
| 24 Mar | 0.0 | 9.2 | 0.0 | Ice risk; freezing fog. |
| 23 Mar | 3.2 | 6.0 | 0.0 | Photometric. High humidity, freezing conditions at times. |
| 22 Mar | 9.0 | 0.0 | 0.2 | Photometric. Cassegrain node reboot. |
| 21 Mar | 8.6 | 0.0 | 0.6 | Photometric. Autoguider focus mechanism problem at start of night; autorecovered. |
| 20 Mar | 4.5 | 4.8 | 0.0 | Photometric? High humidity second half |
| 19 Mar | 0.0 | 0.0 | 0.0 | Scheduled Maintenance. |
| 18 Mar | 0.0 | 0.0 | 0.0 | Scheduled Maintenance. |
| 17 Mar | 0.0 | 0.0 | 0.0 | Scheduled Maintenance. |
| 16 Mar | 0.0 | 0.0 | 0.0 | Scheduled Maintenance. |
| 15 Mar | 9.4 | 0.0 | 0.0 | Photometric? |
| 14 Mar | 9.4 | 0.0 | 0.0 | Photometric? |
| 13 Mar | 9.4 | 0.0 | 0.0 | Non-photometric. |
| 12 Mar | 0.0 | 9.5 | 0.0 | Calima (dust). |
| 11 Mar | 9.5 | 0.0 | 0.0 | Non-photometric. |
| 10 Mar | 3.7 | 0.0 | 5.8 | Non-photometric. Cass axis stuck & RATCam instrument lockup. |
| 9 Mar | 2.3 | 0.0 | 7.3 | Photometric. Cass axis stuck. |
| 8 Mar | 0.0 | 9.6 | 0.0 | High humidity. |
| 7 Mar | 3.3 | 6.3 | 0.0 | Non-photometric. High humidity in second half of night. |
| 6 Mar | 6.9 | 2.2 | 0.3 | Non-photometric, some cloud. RCS work at start of night; overcast at times. |
| 5 Mar | 9.1 | 0.0 | 0.6 | Photometric, some high winds. Some RCS work at start of night. |
| 4 Mar | 0.0 | 9.7 | 0.0 | High humidity & ice. |
| 3 Mar | 0.0 | 9.8 | 0.0 | High humidity & ice. |
| 2 Mar | 0.0 | 9.8 | 0.0 | High humidity & ice. |
| 1 Mar | 4.8 | 4.0 | 1.0 | Non-photometric. Devicenet and CCD control computer errors. High humidity. |
February 2009
Observing: 42.7 hours
Weather Loss: 165.9 hours
Technical Loss: 3.9 hours
Scheduled Maintenance: 71.6 hours
| Date | Hours Used | Comment | ||
|---|---|---|---|---|
| Observing | Weather | Technical | ||
| 28 Feb | 9.8 | 0.0 | 0.0 | Photometric? |
| 27 Feb | 0.0 | 9.8 | 0.0 | High humidity all night. |
| 26 Feb | 0.0 | 9.9 | 0.0 | Freezing Fog. |
| 25 Feb | 0.0 | 9.9 | 0.0 | Freezing Fog. |
| 24 Feb | 0.0 | 6.9 | 3.0 | Cass sticking. Thick Cloud. |
| 23 Feb | 0.0 | 10.0 | 0.0 | Freezing Fog. |
| 22 Feb | 9.3 | 0.0 | 0.7 | Photometric, AMN & Cass node reboots. |
| 21 Feb | 8.8 | 1.2 | 0.0 | Non-photometric but poor seeing; humidity spike. |
| 20 Feb | 0.0 | 10.0 | 0.0 | Ice. |
| 19 Feb | 0.0 | 10.0 | 0.0 | Ice. |
| 18 Feb | 0.0 | 10.1 | 0.0 | Ice. |
| 17 Feb | 4.7 | 5.2 | 0.2 | Non-photometric, high humidity, cassegrain torque error. |
| 16 Feb | 10.1 | 0.0 | 0.0 | Photometric? |
| 15 Feb | 0.0 | 0.0 | 0.0 | Scheduled Maintenance. |
| 14 Feb | 0.0 | 0.0 | 0.0 | Scheduled Maintenance. |
| 13 Feb | 0.0 | 0.0 | 0.0 | Scheduled Maintenance. |
| 12 Feb | 0.0 | 0.0 | 0.0 | Scheduled Maintenance. |
| 11 Feb | 0.0 | 0.0 | 0.0 | Scheduled Maintenance. |
| 10 Feb | 0.0 | 0.0 | 0.0 | Scheduled Maintenance. |
| 9 Feb | 0.0 | 0.0 | 0.0 | Scheduled Maintenance. |
| 8 Feb | 0.0 | 10.3 | 0.0 | Possible enclosure icing. Awaiting visual inspection. |
| 7 Feb | 0.0 | 10.3 | 0.0 | Snow & Ice. |
| 6 Feb | 0.0 | 10.3 | 0.0 | Snow & Ice. |
| 5 Feb | 0.0 | 10.4 | 0.0 | Freezing Fog. |
| 4 Feb | 0.0 | 10.4 | 0.0 | Ice |
| 3 Feb | 0.0 | 10.4 | 0.0 | High humidity. |
| 2 Feb | 0.0 | 10.4 | 0.0 | Ice. |
| 1 Feb | 0.0 | 10.4 | 0.0 | Ice. |
January 2009
Observing: 156.7 hours
Weather Loss: 156.0 hours
Technical Loss: 18.7 hours
Scheduled Maintenance: 0 hours
| Date | Hours Used | Comment | ||
|---|---|---|---|---|
| Observing | Weather | Technical | ||
| 31 Jan | 0.0 | 10.5 | 0.0 | Ice. |
| 30 Jan | 0.0 | 10.5 | 0.0 | Ice. |
| 29 Jan | 6.0 | 4.5 | 0.0 | High humidity second half of night. |
| 28 Jan | 10.6 | 0.0 | 0.0 | Non-photometric |
| 27 Jan | 10.6 | 0.0 | 0.0 | Photometric |
| 26 Jan | 10.6 | 0.0 | 0.0 | Non-photometric |
| 25 Jan | 3.6 | 7.0 | 0.0 | Non-photometric. High humidity at start and end of night. |
| 24 Jan | 8.6 | 0.0 | 2.0 | Non-photometric. Cass rotator jammed at start of night. |
| 23 Jan | 9.6 | 0.0 | 1.0 | Non-photometric. Cass torque errors leading to node reboot & unrelated altitude node reboot. |
| 22 Jan | 0.0 | 3.0 | 7.6 | High humidity at times. Cass rotator jammed. |
| 21 Jan | 9.5 | 0.0 | 1.1 | Photometric. Cass torque errors leading to node reboot. Also unrelated AZM node reboot. |
| 20 Jan | 10.2 | 0.0 | 0.5 | Photometric. Cass node reboot. |
| 19 Jan | 5.7 | 5.0 | 0.0 | Non-photometric. High humidty second half of night. |
| 18 Jan | 0.0 | 10.7 | 0.0 | Ice on enclosure mechanisms. |
| 17 Jan | 0.0 | 10.7 | 0.0 | High winds. |
| 16 Jan | 0.0 | 10.7 | 0.0 | Freezing Fog, High winds. |
| 15 Jan | 0.0 | 10.7 | 0.0 | Freezing Fog |
| 14 Jan | 9.0 | 1.7 | 0.0 | Photometric. High humidity at end of night. |
| 13 Jan | 8.7 | 0.0 | 2.0 | Cass torques Erros provoking node 2 reboots. Also unrelated Alt node reboot. |
| 12 Jan | 7.5 | 3.0 | 0.2 | Thick cloud at start of night. Cass torque errors. |
| 11 Jan | 0.0 | 10.7 | 0.0 | High humidity & high winds |
| 10 Jan | 6.5 | 3.3 | 1.0 | Cassegrain torque errors; high humidity in early morning |
| 9 Jan | 0.0 | 10.8 | 0.0 | High humidity & high winds |
| 8 Jan | 0.0 | 10.8 | 0.0 | High humidity |
| 7 Jan | 0.0 | 10.8 | 0.0 | Freezing Fog. |
| 6 Jan | 0.0 | 10.8 | 0.0 | Fog and Ice. |
| 5 Jan | 0.0 | 10.8 | 0.0 | Freezing Fog. |
| 4 Jan | 9.8 | 0.0 | 1.0 | Photometric. Cassegrain torque errors. |
| 3 Jan | 9.9 | 0.0 | 0.9 | Photometric. Cassegrain torque errors. |
| 2 Jan | 10.3 | 0.0 | 0.5 | Photometric. Cassegrain torque errors. |
| 1 Jan | 10.0 | 0.0 | 0.9 | Non-photometric. Cassegrain axis torque errors. |
