David's Astronomy Pages
Notes - Session 1298 (2025-01-21)

 
Bullet Session Aims & Highlights
 - Observing Result
 - Night Summary Plot
 - Session Event Log
Bullet Operational Issues
  - Critical Issues (0),  Major Issues (0),  Minor Issues (1),  Small Defects (0),  Continuous Improvement (0)
Bullet Images from 2025-01-21 >>         
   

Session Aims & Highlights (2025-01-20)

Main aims

  1. Targets.  Acquire images of a selection of variable stars, nearby stars, comets & deep sky targets as allowed by sky conditions.
  2. CCDMonitor. Check functioning of CCDMonitor following major problem during previous nights session attempt (S1298A, 2025-01-20)

 Equipment & Software

Highlights

Notes

Summary Plots & Logs

Observing Plan
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Observing Result
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Dome & Scope Slewing Performance
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Slew/Centering Performance
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Guiding Performance
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Sky Conditions (Locate Frames)
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Night Sky Summary Plot
Top axis: Sky Brightness at Zenith (in ADU/s)
Lefthand axis: Local Time (hh LT). Righthand axis: Sun Altitude (degs)
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Actual Weather vs Pre-Session Weather Forecast
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Session Event Log
Time     Event Detail
14:20:46 Session Monitoring AutoStart monitoring for Live Session opportunity between 17:14 & 06:13
14:20:48   AutoStart Waiting AutoStart waiting till earliest start time at 17:14
17:14:55   AutoStart Delayed Session delayed due to cloud
19:53:19 Session AutoStarting Session autostarting (19:53)
19:53:31   CCDSoft Restarting CCDSoft being restarted (to set AutoSave No.)
19:53:58   Camera1 Connected SBIG Camera connected (Set point -25°C)
19:54:01 Session Created Session Created (Live, 2025-01-21 S01298, ImageSaveNum: 1298001)
19:54:06   Scope Switched On Telescope Power has been switched on via UPB Powerbox.
19:55:53   Services Started Observatory Services started
19:56:02 Observatory (Auto) Observatory placed in Fully-Automated Mode
19:56:04   AutoStart Delayed Session delayed due to cloud
19:56:07 Session Pending Session pending (2025-01-21)
19:56:09 Session Initiating Session initiating (2025-01-21)
19:56:16   Camera1 Connected SBIG Camera connected (Set point -25°C)
19:56:23   Plan Requested Observing Plan requested from AstroPlan (1.42.7)
19:56:56   Plan Loaded Observing Plan loaded to queue (Plan ID: 1082)
19:57:35   Telescope Connected Telescope connected (TheSky6)
19:57:59 Session Equilibration Session ready to Open Dome
19:58:45   Dome Opened Dome opened (Opening time 45s, Zigbee 40s)
19:59:25 Session Running Session running
19:59:28   Queue Started Observing Queue started (37 targets selected)
19:59:30     Target Started (NrZen) Target started (Focus Field 4, HIP 18637)
19:59:44       Dome Unparked Dome unparked
20:04:21       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
20:07:23       Focusing Completed Foc1 AutoFocus Completed (Profile No 1, wide)
20:09:43       Focusing Completed Foc1 AutoFocus Completed (Profile No 1)
20:09:45       Focusing Started-Foc2 Foc2 Focusing Started (Secondary Scope, using ShCap)
20:11:57       Focusing Completed Foc2 AutoFocus Completed (Profile No 2, wide)
20:13:47       Focusing Completed Foc2 AutoFocus Completed (Profile No 2)
20:14:05     Target Completed (NrZen) Target completed (Focus Field 4, HIP 18637)
20:14:09     Target Started (1/37) Target started (1/37, GCVS BL Lac)
20:18:17       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
20:20:51       Focusing Completed Foc1 AutoFocus Completed (Profile No 3)
20:25:03     Target Completed Target completed (1/37, GCVS BL Lac)
20:25:07     Target Started (2/37) Target started (2/37, GCVS Z And)
20:28:45       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
20:31:18       Focusing Completed Foc1 AutoFocus Completed (Profile No 4)
20:36:00     Target Completed Target completed (2/37, GCVS Z And)
20:36:04     Target Started (3/37) Target started (3/37, AT2025la)
20:40:14       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
20:57:15     Target Completed Target completed (3/37, AT2025la)
20:57:20     Target Started (4/37) Target started (4/37, WDS GRB 34)
21:01:21       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
21:03:47       Focusing Completed Foc1 AutoFocus Completed (Profile No 5)
21:06:00     Target Completed Target completed (4/37, WDS GRB 34)
21:06:04     Target Started (5/37) Target started (5/37, UGC 1325 w/SN2024aedt)
21:10:42       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
21:27:11     Target Completed Target completed (5/37, UGC 1325 w/SN2024aedt)
21:27:15     Target Started (6/37) Target started (6/37, GSC 1224:29)
21:30:45       Focusing Skipped Foc1 focusing skipped - star is lost (TCF-S)
21:37:18     Target Completed Target completed (6/37, GSC 1224:29)
21:39:14     Target Started (7/37) Target started (7/37, UGCA 118)
21:42:54       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
21:45:46       Focusing Completed Foc1 AutoFocus Completed (Profile No 6)
22:02:35     Target Completed Target completed (7/37, UGCA 118)
22:02:39     Target Started (8/37) Target started (8/37, NGC 2170)
22:06:31       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
22:09:21       Focusing Completed Foc1 AutoFocus Completed (Profile No 7)
22:20:21     Target Completed Target completed (8/37, NGC 2170)
22:20:25     Target Started (9/37) Target started (9/37, GCVS HH And)
22:24:32       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
22:27:14       Focusing Completed Foc1 AutoFocus Completed (Profile No 8)
22:29:16     Target Completed Target completed (9/37, GCVS HH And)
22:29:20     Target Started (10/37) Target started (10/37, UGC 604 w/SN2024advj)
22:32:38       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
22:34:59       Focusing Completed Foc1 AutoFocus Completed (Profile No 9)
22:51:01     Target Completed Target completed (10/37, UGC 604 w/SN2024advj)
22:51:05     Target Started (11/37) Target started (11/37, UGC 8239 w/SN2025N)
23:12:58     Target Completed Target completed (11/37, UGC 8239 w/SN2025N)
23:13:02     Target Started (12/37) Target started (12/37, GCVS U Gem)
23:13:25       Dome Unparked Dome unparked
23:16:55       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
23:19:42       Focusing Completed Foc1 AutoFocus Completed (Profile No 10)
23:22:57     Target Completed Target completed (12/37, GCVS U Gem)
23:23:01     Target Started (13/37) Target started (13/37, NGC 2665)
23:27:25       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
23:30:20       Focusing Completed Foc1 AutoFocus Completed (Profile No 11)
23:46:43     Target Completed Target completed (13/37, NGC 2665)
23:46:47     Target Started (14/37) Target started (14/37, UGCA 145)
23:50:43       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
00:06:49     Target Completed Target completed (14/37, UGCA 145)
00:06:54     Target Started (15/37) Target started (15/37, UGCA 147)
00:10:24       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
00:26:27     Target Completed Target completed (15/37, UGCA 147)
00:28:03     Target Started (16/37) Target started (16/37, NGC 2811)
00:32:07       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
00:35:01       Focusing Completed Foc1 AutoFocus Completed (Profile No 12)
00:50:58     Target Completed Target completed (16/37, NGC 2811)
00:51:02     Target Started (17/37) Target started (17/37, NGC 2848)
00:54:37       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
01:10:55     Target Completed Target completed (17/37, NGC 2848)
01:12:43     Target Started (18/37) Target started (18/37, NGC 2986 w/SN2025gj)
01:16:20       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
01:32:38     Target Completed Target completed (18/37, NGC 2986 w/SN2025gj)
01:35:03     Target Started (19/37) Target started (19/37, AT2024aart)
01:40:38       Focusing Skipped Foc1 focusing skipped - unable to find a star (TCF-S)
01:57:06     Target Completed Target completed (19/37, AT2024aart)
01:57:23     Target Started (20/37) Target started (20/37, NGC 2855)
02:00:49       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
02:03:29       Focusing Completed Foc1 AutoFocus Completed (Profile No 13)
02:20:10     Target Completed Target completed (20/37, NGC 2855)
02:20:14     Target Started (21/37) Target started (21/37, GCVS ER UMa)
02:24:05       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
02:28:06     Target Completed Target completed (21/37, GCVS ER UMa)
02:30:01     Target Started (22/37) Target started (22/37, UGCA 281)
02:34:03       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
02:50:15     Target Completed Target completed (22/37, UGCA 281)
02:52:21     Target Started (23/37) Target started (23/37, AT2025lr)
02:58:24       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
03:15:25     Target Completed Target completed (23/37, AT2025lr)
03:15:30     Target Started (24/37) Target started (24/37, UGC 6363 w/SN2024adix)
03:18:46       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
03:20:29       Focusing Failed Foc1 focusing failed - star lost
03:36:54     Target Completed Target completed (24/37, UGC 6363 w/SN2024adix)
03:36:59     Target Started (25/37) Target started (25/37, NGC 3389)
03:39:39       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
03:42:36       Focusing Completed Foc1 AutoFocus Completed (Profile No 15)
03:59:00     Target Completed Target completed (25/37, NGC 3389)
03:59:04     Target Started (26/37) Target started (26/37, GCVS CN Leo)
04:03:20       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
04:05:54       Focusing Completed Foc1 AutoFocus Completed (Profile No 16)
04:13:38     Target Completed Target completed (26/37, GCVS CN Leo)
04:13:42     Target Started (27/37) Target started (27/37, NGC 3521 w/SN2024aecx)
04:16:45       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
04:33:02     Target Completed Target completed (27/37, NGC 3521 w/SN2024aecx)
04:35:03     Target Started (28/37) Target started (28/37, T CrB)
04:38:55       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
04:39:47       Focusing Failed Foc1 focusing failed - star lost
04:44:22     Target Completed Target completed (28/37, T CrB)
04:45:59     Target Started (29/37) Target started (29/37, 29P/Schwassmann-Wachmann)
04:51:43       Focusing Skipped Foc1 focusing skipped - unable to find a star (TCF-S)
05:06:54     Target Completed Target completed (29/37, 29P/Schwassmann-Wachmann)
05:07:14     Target Started (30/37) Target started (30/37, AT2025md (CV))
05:12:08       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
05:12:47       SoftSuspend Called Soft Suspend called due to Deteriorating Conditions (too few stars)
05:15:40       Focusing Failed Foc1 focusing check failed
05:15:42       Focusing Completed Foc1 AutoFocus Completed (Profile No 18)
05:21:55     Target Completed Target completed (30/37, AT2025md (CV))
05:21:57   Queue Paused Queue paused for Session Suspension
05:21:58 Session Suspending Session suspending
05:22:43   Dome Closed Dome closed (Closing time 45s, Zigbee 0s)
05:22:46 Session Suspended Session suspended
05:22:48   Shutter Issue Shutter Sensor indicates that shutter hasn't fully closed
05:23:08   Dome Closed Dome closed (Closing time 15s, Zigbee 10s)
05:30:49     Target Cancelled Target cancelled (31/37, AT2025lc (CV)) due to cloud
05:43:09     Target Cancelled Target cancelled (32/37, Nova Vul 2024) due to cloud
05:55:29     Target Cancelled Target cancelled (33/37, AT2025oj (CV)) due to too few stars
06:15:49     Target Cancelled Target cancelled (34/37, NGC 6106 w/SN2024ahv) due to cloud
06:30:10     Target Cancelled Target cancelled (35/37, AT2023df (CV)) due to cloud
06:39:30     Target Cancelled Target cancelled (36/37, HIP 87937) due to cloud
07:00:58     Target Cancelled Target cancelled (37/37, GCVS RR Leo) due to cloud
07:01:02   Queue Completed Job Queue completed
07:01:05 Session Closing Session closing
07:01:10   Dome Closed Dome already closed (closed at 05:23, closing time 15s, zigbee 10s)
07:01:36   Dome Parked Dome parked (parking time 18s), Az: 90.0 deg
07:02:27   Telescope Parked Telescope parked (parking time 44s total)
07:02:50   Telescope State Handbox reads 'Scope parked Turn scope off.'
07:03:12   Telescope Switched Off Telescope Power has been switched off via UPB Switch.
07:04:37   Services Stopped Night Services stopped
07:04:40 Session Finishing Session Finishing started (Create Fits Summary, Transfer Files)
07:05:17     Dome (Find Park) Find Park started (Search Az 88.0 to 92.0°, Step 0.2°, Narrow)
07:06:04     Dome Find Park found (Best Park Az 90.4°)
07:06:10     Dome Dome has been synced at park position (Az 90.0°, Adjustment: -0.4°)
07:06:12   Dome Parked Dome parked
07:09:10   Dome Charging Dome is parked and well charged (95%, 14.9v
07:09:12 Session Finished Session Finished
 
Session Alerts & Alarms
Time     Type       Name Detail
05:22:48 Red Alert Shutter Shutter Sensor indicates that shutter hasn't fully closed
05:23:18 Green Clear Shutter Shutter Sensor confirms shutter is closed after earlier issue
07:09:10 Yellow Alert Dome Charging Dome is parked and well charged (95%, 14.9v
 

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Operational Issues (2025-01-21 S1298)

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Fig 1.   Log File records associated with Shutter Closure 05:21

05:21:58.49 | (Manager)  Change Session.State       | Session : Suspending
05:21:58.51 | (Manager)  (trace) Sesssion Suspending| Calling Dome.CloseShutter
05:21:58.51 | (Dome)     Run    CloseShutter        | Close Shutter
05:21:58.51 | (Dome)     (trace) CloseShutter       | Call CloseShutterByThread (Close Dome No. 0)
05:21:58.51 | (DomeTask) (trace) CloseShutter       | Starting CloseShutterTask (Thread)
05:21:58.52 | (Manager)  (trace) Sesssion Suspensing| Back from Dome.CloseShutter
05:21:58.52 | (DomeTask) (trace) CloseShutter       | ShutterStatus: Open (Initial)
05:21:58.52 | (DomeTask) (trace) CloseShutter       | Call objDome.CloseShutter (Attempt 1)
05:21:58.53 | (DomeTask) (trace) CloseShutter       | Back objDome.CloseShutter (T+0.0s)
05:21:59.04 | (DomeTask) (trace) CloseShutter       | ShutterStatus: Closing (T+0.5s)
05:21:59.49 | (Zigbee)   (trace) HandleSensorChange | Setting DomeShutter.ShutterStatus = .shutterClosing
05:21:59.49 | (Zigbee)   (trace) HandleSensorChange | Setting DomeShutter.StartClosingTime = 05:21:59
05:21:59.49 | (Zigbee)   Event   ShutterTopSensor   | Observatory Shutter is closing (05:21:59, open time 9.4 hour)
05:22:03.21 | (Manager)  Report  CloseDome          | Closing Dome
05:22:06.73 | (DomeTask) (trace) CloseShutter       | ShutterStatus: Closing (T+8.2s)
05:22:07.39 | (DomeTask) (trace) CloseShutter       | Exit CloseShutterTask (Success)
05:22:43.49 | (Manager)  (trace) CloseShutter       | ShutterStatus: Closed (T+45.0s)
05:22:43.49 | (Manager)  Report  CloseDome (Done)   | Dome is Closed (Closing time 45s, Zigbee 0s)

05:22:44.04 | (Manager)  Change  Session.State      | Session : Suspended
05:22:44.17 | (Manager)  --------------------------------------------------------------------------------
05:22:48.64 | (Manager)  Check   Shutter            | Shutter Sensor indicates that shutter hasn't fully closed
05:22:48.67 | (Manager)  Fix     Shutter            | Attempting to resolve 'ShutterNotFullyClosed' Issue
05:22:48.67 | (Manager)  Fix     Shutter            | Trying 'Open Shutter, followed by Close Shutter again'
05:22:48.67 | (Dome)     (trace) OpenShutter        | Call OpenShutterByThread (Open Dome No. 2)
05:22:48.67 | (DomeTask) (trace) OpenShutter        | Starting OpenShutterTask (Thread)
05:22:48.67 | (DomeTask) (trace) OpenShutter        | ShutterStatus: Closed (Initial)
05:22:48.67 | (DomeTask) (trace) OpenShutter        | Call objDome.OpenShutter (Attempt 1)
05:22:48.69 | (DomeTask) (trace) OpenShutter        | Back objDome.OpenShutter (T+0.0s)
05:22:49.21 | (DomeTask) (trace) OpenShutter        | ShutterStatus: Opening (T+0.5s)
05:22:53.71 | (Manager)  Report  OpenDome           | Opening Dome
05:22:53.71 | (Manager)  (trace) SessionSuspended   | SuspendedStageNo set to 4
05:22:53.71 | (Manager) --------------------------------------------------------------------------------
05:22:53.71 | (Manager)  Start   SuspendedStage 4   | Suspended Stage 4 (Check Shutter)
05:22:53.71 | (Manager)  Fix     Shutter            | Trying 'Close Shutter again'
05:22:53.71 | (Dome)     Run     CloseShutter       | Close Shutter
05:22:53.71 | (Dome)     (trace) CloseShutter       | Call CloseShutterByThread (Close Dome No. 1)
05:22:53.71 | (DomeTask) (trace) CloseShutter       | Starting CloseShutterTask (Thread)
05:22:53.71 | (DomeTask) (trace) CloseShutter       | ShutterStatus: Opening (Initial)
05:22:53.71 | (DomeTask) (trace) CloseShutter       | Call objDome.CloseShutter (Attempt 1)
05:22:53.73 | (DomeTask) (trace) CloseShutter       | Back objDome.CloseShutter (T+0.0s)
05:22:54.25 | (DomeTask) (trace) CloseShutter       | ShutterStatus: Closing (T+0.5s)
05:22:54.30 | (DomeTask) (trace) OpenShutter        | ShutterStatus: Closing (T+5.6s)
05:22:56.86 | (DomeTask) (trace) OpenShutter        | ShutterStatus: Closing (T+8.2s)
05:22:57.40 | (DomeTask) (trace) OpenShutter        | Exit OpenShutterTask (Fail)
05:22:58.53 | (Manager)  Report  CloseDome          | Closing Dome
05:23:01.91 | (DomeTask) (trace) CloseShutter       | ShutterStatus: Closing (T+8.2s)
05:23:02.47 | (DomeTask) (trace) CloseShutter       | Exit CloseShutterTask (Success)
05:23:03.66 | (Zigbee)   (trace) HandleSensorChange | Setting DomeShutter.ShutterStatus = .shutterClosed
05:23:03.66 | (Zigbee)   (trace) HandleSensorChange | Setting DomeShutter.LastClosingSecs = 10s
05:23:03.66 | (Zigbee)   Event   ShutterSensor      | Observatory Shutter has closed (05:23:03, closing time 10s)
05:23:08.65 | (Manager)  (trace) CloseShutter       | ShutterStatus: Closed (T+14.9s)
05:23:08.65 | (Manager)  Report  CloseDome (Done)   | Dome is Closed (Closing time 15s, Zigbee 10s))

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