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 Notes - Session 1348 Attempt (2025-08-13)

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Bullet Session Aims & Highlights
 - Observing Result
 - Night Summary Plot
 - Session Event Log
Bullet Operational Issues
- Critical Issues (0),  Major Issues (0),  Minor Issues (0),  Small Defects (1),  Continuous Improvement (0)
- Figures (0)
   
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Session Aims & Highlights (2025-08-13)

Main aims

  1. Targets.  Acquire images of a selection of variable stars, nearby stars, comets & deep sky targets as allowed by sky conditions and the short summer night.

 Equipment & Software

Highlights

Notes

Summary Plots & Logs

Observing Plan
Image
  
Observing Result
Image
   
Image
 
Dome & Scope Slewing Performance
Image
  
Night Sky Summary Plot
Top axis: Sky Brightness at Zenith (in ADU/s)
Lefthand axis: Local Time (hh LT). Righthand axis: Sun Altitude (degs)
Note:  The NorthCam Star Count line is unreliable and should be ignored
(The AstroNorthCam 'Find' Star method is producing many false positives from clouds)
Image   
  
 
Session Event Log
Time     Event Detail
21:53:08 Session Monitoring AutoStart monitoring for Live Session opportunity between 21:53 & 03:35
21:53:09   AutoStart Delayed Session delayed due to cloud
22:32:23 Session AutoStarting Session autostarting (22:32)
22:32:35   CCDSoft Restarting CCDSoft being restarted (to set AutoSave No.)
22:32:50 Session Created Session Created (Live, 2025-08-13 S01348, ImageSaveNum: 1348001)
22:32:57   Scope Switched On Telescope Power has been switched on via UPB Switch
22:34:42   Services Started Observatory Services started
22:34:52 Observatory (Auto) Observatory placed in Fully-Automated Mode
22:34:54   AutoStart Delayed Session delayed due to cloud
22:34:56 Session Pending Session pending (2025-08-13)
22:34:58 Session Initiating Session initiating (2025-08-13)
22:35:14   Camera1 Connected SBIG Camera connected (Set point -10°C)
22:35:17   Plan Requested Observing Plan requested from AstroPlan (1.43.14)
22:36:07   Plan Loaded Observing Plan loaded to queue (Plan ID: 1133)
22:36:49   Telescope Connected Telescope connected (TheSky6)
22:37:13 Session Equilibration Session ready to Open Dome
22:37:59   Dome Opened Dome opened (Opening time 46s, Zigbee 39s)
22:38:18 Session Running Session running
22:38:21   Queue Started Observing Queue started (19 targets selected)
22:38:24     Target Started (NrZen) Target started (Focus Field 19, HIP 93376)
22:38:40       Dome Unparked Dome unparked
22:42:11       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
22:44:33       Focusing Completed Foc1 AutoFocus Completed (Profile No 1, wide)
22:46:38       Focusing Completed Foc1 AutoFocus Completed (Profile No 1)
22:46:40       Focusing Started-Foc2 Foc2 Focusing Started (Secondary Scope, using ShCap)
22:48:24       Focusing Completed Foc2 AutoFocus Completed (Profile No 2, wide)
22:49:58       Focusing Completed Foc2 AutoFocus Completed (Profile No 2)
22:50:17     Target Completed (NrZen) Target completed (Focus Field 19, HIP 93376)
22:51:45     Target Started (1/19) Target started (1/19, NGC 4395 w/AT2025lwi)
22:58:31   Critical Cloud Alert Critical Cloud Alert (Obs.Manager will close the Dome)
22:58:33   HardSuspend Called Hard Suspend called due to Critical Conditions (cloud)
22:58:35     Target Aborted (1/19) Target aborted (1/19, NGC 4395 w/AT2025lwi) due to cloud
22:58:37   Queue Paused Queue paused for Session Suspension
22:58:39 Session Suspending Session suspending
22:59:26   Dome Closed Dome closed (Closing time 49s, Zigbee 42s)
22:59:28 Session Suspended Session suspended
23:11:01     Target Cancelled Target cancelled (1/19, NGC 4395 w/AT2025lwi) due to cloud
23:33:21     Target Cancelled Target cancelled (2/19, IC 4408 w/SN2025kfm) due to cloud
23:46:47     Target Cancelled Target cancelled (3/19, T CrB) due to cloud
23:58:37     Target Cancelled Target cancelled (4/19, Nova Ser 2025) due to cloud
00:18:57     Target Cancelled Target cancelled (5/19, SN 2025taz) due to cloud
00:40:57     Target Cancelled Target cancelled (6/19, AT2023ctv) due to cloud
00:53:15     Target Cancelled Target cancelled (7/19, GCVS CY Lyr) due to cloud
01:03:33     Target Cancelled Target cancelled (8/19, KIC 8462852) due to cloud
01:13:13     Target Cancelled Target cancelled (9/19, (2) Pallas) due to cloud
01:22:51     Target Cancelled Target cancelled (10/19, GCVS BL Lac) due to cloud
01:35:11     Target Cancelled Target cancelled (11/19, AT2023abtv (CV)) due to cloud
01:47:31     Target Cancelled Target cancelled (12/19, AT2022dzx (CV)) due to cloud
02:07:31     Target Cancelled Target cancelled (13/19, AT2025nqf) due to cloud
02:21:52     Target Cancelled Target cancelled (14/19, AT2022aeeo (CV)) due to cloud
02:41:51     Target Cancelled Target cancelled (15/19, AT2023twq) due to cloud
03:04:11     Target Cancelled Target cancelled (16/19, AT2024ges) due to cloud
03:18:31     Target Cancelled Target cancelled (17/19, AT2022vyq (CV)) due to cloud
03:29:39     Target Cancelled Target cancelled (18/19, GCVS SS Cyg) due to cloud
03:58:54     Target Cancelled Target cancelled (19/19, NGC 7331 w/SN2025rbs) due to cloud
03:58:58   Queue Completed Job Queue completed
03:59:02 Session Closing Session closing
03:59:07   Dome Closed Dome already closed (closed at 22:59, closing time 49s, zigbee 42s)
04:00:21   Dome Parked Dome parked (parking time 66s), Az: 90.0 deg
04:01:15   Telescope Parked Telescope parked (parking time 50s total)
04:01:39   Telescope State Handbox reads 'Scope parked Turn scope off.'
04:02:01   Telescope Switched Off Telescope Power has been switched off via UPB Switch.
04:03:24   Services Stopped Night Services stopped
04:03:27 Session Finishing Session Finishing started (Create Fits Summary, Transfer Files)
04:03:34     Dome (Find Park) Find Park started (Search Az 80.0 to 100.0°, Step 1.0°, Wide)
04:04:18     Dome Find Park found (Best Park Az 89.0°)
04:04:24     Dome (Find Park) Find Park started (Search Az 87.0 to 91.0°, Step 0.2°, Narrow)
04:05:07     Dome Find Park found (Best Park Az 89.2°)
04:05:13     Dome Dome has been synced at park position (Az 90.0°, Adjustment: +0.8°)
04:05:15   Dome Parked Dome parked
04:05:22   Dome Charging Dome is parked and re-charging Ok (5mA)
04:05:24 Session Finished Session Finished
 
Session Alerts & Alarms
Time     Type       Name Detail
04:05:22 Green Clear Dome Charging Dome is parked and re-charging Ok (5mA)
 

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Operational Issues (2025-08-13 S1348 Attempt)

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Critical Issues

Major Issues

Minor Issues

Small Defects

Continuous Improvement

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Fig 1.  Unhandled Exception -  Net Framework , Charting.ChartPicture

Image

************** Exception Text **************

System.InvalidOperationException: Collection was modified; enumeration operation may not execute.
 at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
 at System.Collections.Generic.List`1.Enumerator.MoveNextRare()
 at System.Collections.Generic.List`1.Enumerator.MoveNext()
 at System.Windows.Forms.DataVisualization.Charting.Series.PrepareData(Boolean applyPaletteColors)
 at System.Windows.Forms.DataVisualization.Charting.Data.DataManager.PrepareData(Boolean pointsApplyPaletteColors, String[] series)
 at System.Windows.Forms.DataVisualization.Charting.Data.DataManager.ChartPicture_BeforePaint(Object sender, ChartPaintEventArgs e)
 at System.Windows.Forms.DataVisualization.Charting.ChartPicture.OnBeforePaint(ChartPaintEventArgs e)
 at System.Windows.Forms.DataVisualization.Charting.ChartPicture.Paint(Graphics graph, Boolean paintTopLevelElementOnly)
 at System.Windows.Forms.DataVisualization.Charting.Chart.OnPaint(PaintEventArgs e)
 at System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer)
 at System.Windows.Forms.Control.WmPaint(Message& m)
 at System.Windows.Forms.Control.WndProc(Message& m)
 at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
 at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
 at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

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This Web Page: Notes - Session 1348 Attempt (2025-08-13)
Last Updated : 2025-08-16
Site Owner : David Richards
Home Page : David's Astronomy Web Site