David's Astronomy Pages
 Notes - Session 1419 (2026-04-11)

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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 (1),  Small Defects (0),  Continuous Improvement (0)
- Figures (0)
   
Bullet Images from 2026-04-11  >>           
   
   

Session Aims & Highlights (2026-04-11)

Main aims

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

 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)
Note:  The NorthCam Star Count line is unreliable and should be ignored
(The AstroNorthCam 'Find' Star method is producing many false positives from clouds)
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Actual Weather vs Pre-Session Weather Forecast
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Session Event Log
Time     Event Detail
20:12:01 Session Monitoring AutoStart monitoring for Live Session opportunity between 20:53 & 04:21
20:12:04   AutoStart Waiting AutoStart waiting till earliest start time at 20:53
20:53:58   AutoStart Delayed Session delayed due to rain
21:49:58 Session AutoStarting Session autostarting (21:49)
21:50:05 Session Created Session Created (Live, 2026-04-11 S01419)
21:50:07   CCDSoft Restarting CCDSoft being restarted (to set AutoSave No.)
21:50:26   Scope Switched On Telescope Power has been switched on via UPB Switch
21:52:14   Services Started Observatory Services started
21:52:25 Observatory (Auto) Observatory placed in Fully-Automated Mode
21:52:27   AutoStart Delayed Session delayed due to rain
21:52:29 Session Pending Session pending (2026-04-11)
21:52:31 Session Initiating Session initiating (2026-04-11)
21:52:56   Camera1 Connected SBIG Camera connected (Set point -20°C)
21:53:00   Plan Requested Observing Plan requested from AstroPlan (1.46.2)
21:54:03   Plan Loaded Observing Plan loaded to queue (PlanID: 1219)
21:54:43   Telescope Connected Telescope connected (TheSky6)
21:55:06 Session Equilibration Session ready to Open Dome
21:55:52   Dome Opened Dome opened (Opening time 45s, Zigbee 40s)
21:55:54 Session Running Session running
21:55:56   Queue Started Observing Queue started (23 targets selected)
21:56:01     Target Started (NrZen) Target started (Focus Field 12, HIP 58514)
21:56:15       Dome Unparked Dome unparked
22:00:31       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
22:02:51       Focusing Completed Foc1 AutoFocus Completed (Profile No 1, wide)
22:05:08       Focusing Completed Foc1 AutoFocus Completed (Profile No 1)
22:05:17       Focusing Started-Foc2 Foc2 Focusing Started (Secondary Scope, using ShCap)
22:07:27       Focusing Completed Foc2 AutoFocus Completed (Profile No 2, wide)
22:09:15       Focusing Completed Foc2 AutoFocus Completed (Profile No 2)
22:09:36     Target Completed (NrZen) Target completed (Focus Field 12, HIP 58514)
22:09:40     Target Started (1/23) Target started (1/23, T CrB)
22:09:58       Dome Unparked Dome unparked
22:13:59       Focusing Skipped Foc1 focusing skipped - star is lost (TCF-LSI)
22:18:32     Target Completed Target completed (1/23, T CrB)
22:20:25     Target Started (2/23) Target started (2/23, IC 4556 w/SN2026fuz)
22:25:31       Focusing Skipped Foc1 focusing skipped - star is lost (TCF-LSI)
22:31:35   Critical RainThreat Alert Critical Rain Threat Alert (Obs.Manager will close the Dome)
22:31:37   HardSuspend Called Hard Suspend called due to Critical Conditions (threat of rain)
22:31:40     Target Aborted (2/23) Target aborted (2/23, IC 4556 w/SN2026fuz) due to threat of rain
22:31:42   Queue Paused Queue paused for Session Suspension
22:31:44 Session Suspending Session suspending
22:32:25   Dome Closed Dome closed (Closing time 45s, Zigbee 43s)
22:32:28 Session Suspended Session suspended
22:39:41     Target Cancelled Target cancelled (2/23, IC 4556 w/SN2026fuz) due to cloud
22:56:13     Target Cancelled Target cancelled (3/23, C/2024 E1 (Wierzchos)) due to cloud
23:11:29 Session Resuming Session resuming
23:12:14   Dome Opened Dome opened (Opening time 45s, Zigbee 40s)
23:12:16 Session Running Session running
23:12:18   Queue Resumed Observing Queue resumed
23:12:20     Target Started (4/23) Target started (4/23, 240P/NEAT)
23:18:12     Target Completed Target partially completed (4/23, 240P/NEAT)
23:18:16     Target Started (5/23) Target started (5/23, C/2022 N2 (PANSTARRS))
23:30:39     Target Completed Target completed (5/23, C/2022 N2 (PANSTARRS))
23:30:43     Target Started (6/23) Target started (6/23, SHK 95)
23:34:19       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-LSI)
23:50:29     Target Completed Target completed (6/23, SHK 95)
23:50:53     Target Started (7/23) Target started (7/23, GCVS DX Cnc)
23:54:58       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-LSI)
00:00:32     Target Completed Target completed (7/23, GCVS DX Cnc)
00:02:05     Target Started (8/23) Target started (8/23, PCG 0904+4523)
00:05:23       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-LSI)
00:21:31     Target Completed Target completed (8/23, PCG 0904+4523)
00:24:25     Target Started (9/23) Target started (9/23, UGC 11058 w/SN2026ewd)
00:29:00       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
00:31:46       Focusing Completed Foc1 AutoFocus Completed (Profile No 3)
00:48:08     Target Completed Target completed (9/23, UGC 11058 w/SN2026ewd)
00:48:13     Target Started (10/23) Target started (10/23, AT2026iul (CV))
00:51:56       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
00:54:43       Focusing Completed Foc1 AutoFocus Completed (Profile No 4)
01:01:17     Target Completed Target completed (10/23, AT2026iul (CV))
01:01:21     Target Started (11/23) Target started (11/23, KIC 8462852)
01:01:28   Critical Cloud Alert Critical Cloud Alert (Obs.Manager will close the Dome)
01:01:30   HardSuspend Called Hard Suspend called due to Critical Conditions (cloud)
01:02:05     Target Failed (11/23) Target failed due to aborted (11/23, KIC 8462852)
01:02:07   Queue Paused Queue paused for Session Suspension
01:02:09 Session Suspending Session suspending
01:02:59   Dome Closed Dome closed (Closing time 50s, Zigbee 43s)
01:03:02 Session Suspended Session suspended
01:08:19     Target Cancelled Target cancelled (11/23, KIC 8462852) due to cloud
01:28:39     Target Cancelled Target cancelled (12/23, PCG 0943+3923) due to cloud
01:41:47     Target Cancelled Target cancelled (13/23, GCVS RZ LMi) due to cloud
01:52:36     Target Cancelled Target cancelled (14/23, GCVS ER UMa) due to cloud
02:05:01     Target Cancelled Target cancelled (15/23, GCVS RR Leo) due to cloud
02:25:06     Target Cancelled Target cancelled (16/23, PCG 0953+5710) due to rain
02:47:26     Target Cancelled Target cancelled (17/23, PCG 1041+4017) due to rain
03:06:58     Target Cancelled Target cancelled (18/23, 29P/Schwassmann-Wachmann) due to rain
03:27:28     Target Cancelled Target cancelled (19/23, NGC 3861 w/SN2026ihi) due to rain
03:49:28     Target Cancelled Target cancelled (20/23, NGC 7292 w/SN2026fov) due to rain
04:02:36     Target Cancelled Target cancelled (21/23, GCVS SS Cyg) due to rain
04:12:09     Target Cancelled Target cancelled (22/23, GCVS BL Lac) due to rain
04:42:29     Target Cancelled Target cancelled (23/23, MCG +7-28-15 w/SN2025adje) due to rain
04:42:33   Queue Completed Job Queue completed
04:42:35 Session Closing Session closing
04:42:37   Dome Closed Dome already closed (closed at 01:02, closing time 50s, zigbee 43s)
04:43:06   Dome Parked Dome parked (parking time 20s), Az: 90.0 deg
04:43:57   Telescope Parked Telescope parked (parking time 46s total)
04:44:21   Telescope State Handbox reads 'Scope parked Turn scope off.'
04:45:18   Telescope Switched Off Telescope Power has been switched off via UPB Switch.
04:46:42   Services Stopped Night Services stopped
04:46:45 Session Finishing Session Finishing started (Create Fits Summary, Transfer Files)
04:47:17     Dome (Find Park) Find Park started (Search Az 88.0 to 92.0°, Step 0.2°, Narrow)
04:48:01     Dome Find Park found (Best Park Az 90.2°)
04:48:07     Dome Dome has been synced at park position (Az 90.0°, Adjustment: -0.2°)
04:48:09   Dome Parked Dome parked
04:51:10   Dome Charging Dome is parked and well charged (96%, 15.0v)
04:51:12 Session Finished Session Finished
 
Session Alerts & Alarms
Time     Type       Name Detail
04:51:10 Yellow Alert Dome Charging Dome is parked and well charged (96%, 15.0v)
 

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This Web Page Notes - Session 1419 (2026-04-11)
Last Updated : 2026-04-13
Site Owner : David Richards
Home Page : David's Astronomy Web Site