David's Astronomy Pages
 Notes - Session 1418 (2026-04-09)

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Bullet Session Aims & Highlights
 - Observing Result
 - Night Summary Plot
 - Session Event Log
Bullet Operational Issues
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Bullet Images from 2026-04-09  >>           
   
   

Session Aims & Highlights (2026-04-09)

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
Image
  
Observing Result
Image
   
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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
22:52:49 Session Monitoring AutoStart monitoring for Live Session opportunity between 22:52 & 04:19
22:52:54 Session AutoStarting Session autostarting (22:52)
22:53:00 Session Created Session Created (Live, 2026-04-09 S01418)
22:53:02   CCDSoft Restarting CCDSoft being restarted (to set AutoSave No.)
22:53:22   Scope Switched On Telescope Power has been switched on via UPB Switch
22:55:10   Services Started Observatory Services started
22:55:20 Observatory (Auto) Observatory placed in Fully-Automated Mode
22:55:24 Session Pending Session pending (2026-04-09)
22:55:26 Session Initiating Session initiating (2026-04-09)
22:55:51   Camera1 Connected SBIG Camera connected (Set point -20°C)
22:55:56   Plan Requested Observing Plan requested from AstroPlan (1.46.2)
22:56:55   Plan Loaded Observing Plan loaded to queue (PlanID: 1218)
22:57:38   Telescope Connected Telescope connected (TheSky6)
22:58:03 Session Equilibration Session ready to Open Dome
22:58:48   Dome Opened Dome opened (Opening time 45s, Zigbee 41s)
22:58:50 Session Running Session running
22:58:52   Queue Started Observing Queue started (20 targets selected)
22:58:58     Target Started (NrZen) Target started (Focus Field 11, HIP 53798)
22:59:12       Dome Unparked Dome unparked
23:02:33       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
23:04:49       Focusing Completed Foc1 AutoFocus Completed (Profile No 1, wide)
23:06:53       Focusing Completed Foc1 AutoFocus Completed (Profile No 1)
23:07:02       Focusing Started-Foc2 Foc2 Focusing Started (Secondary Scope, using ShCap)
23:08:57       Focusing Completed Foc2 AutoFocus Completed (Profile No 2, wide)
23:10:48       Focusing Completed Foc2 AutoFocus Completed (Profile No 2)
23:11:09     Target Completed (NrZen) Target completed (Focus Field 11, HIP 53798)
23:12:24     Target Started (1/20) Target started (1/20, 29P/Schwassmann-Wachmann)
23:17:21       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
23:19:41       Focusing Completed Foc1 AutoFocus Completed (Profile No 3)
23:32:05     Target Completed Target completed (1/20, 29P/Schwassmann-Wachmann)
23:32:09     Target Started (2/20) Target started (2/20, NGC 3861 w/AT2026ihi)
23:36:35       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
23:38:34       Focusing Completed Foc1 AutoFocus Completed (Profile No 4)
23:54:36     Target Completed Target completed (2/20, NGC 3861 w/AT2026ihi)
23:54:41     Target Started (3/20) Target started (3/20, NGC 3689 w/SN2026gwx)
00:18:09     Target Completed Target completed (3/20, NGC 3689 w/SN2026gwx)
00:18:13     Target Started (4/20) Target started (4/20, NGC 4205 w/SN2026fvx)
00:39:21     Target Completed Target completed (4/20, NGC 4205 w/SN2026fvx)
00:39:25     Target Started (5/20) Target started (5/20, NGC 4914 w/SN2026fjc)
00:44:09       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
00:46:38       Focusing Completed Foc1 AutoFocus Completed (Profile No 5)
01:02:58     Target Completed Target completed (5/20, NGC 4914 w/SN2026fjc)
01:03:03     Target Started (6/20) Target started (6/20, 240P/NEAT)
01:05:04   Critical Cloud Alert Critical Cloud Alert (Obs.Manager will close the Dome)
01:05:06   HardSuspend Called Hard Suspend called due to Critical Conditions (cloud)
01:05:08     Target Aborted (6/20) Target aborted (6/20, 240P/NEAT) due to cloud
01:05:10   Queue Paused Queue paused for Session Suspension
01:05:12 Session Suspending Session suspending
01:06:00   Dome Closed Dome closed (Closing time 50s, Zigbee 44s)
01:06:02 Session Suspended Session suspended
01:15:06     Target Cancelled Target cancelled (6/20, 240P/NEAT) due to cloud
01:25:24     Target Cancelled Target cancelled (7/20, GCVS BL Lac) due to cloud
01:38:48 Session Resuming Session resuming
01:39:33   Dome Opened Dome opened (Opening time 45s, Zigbee 41s)
01:39:36 Session Running Session running
01:39:38   Queue Resumed Observing Queue resumed
01:39:40     Target Started (8/20) Target started (8/20, UGC 11058 w/SN2026ewd)
01:51:37     Target Completed Target partially completed (8/20, UGC 11058 w/SN2026ewd)
01:51:42     Target Started (9/20) Target started (9/20, GCVS AM Her)
02:03:20     Target Completed Target completed (9/20, GCVS AM Her)
02:03:24     Target Started (10/20) Target started (10/20, T CrB)
02:07:22       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
02:09:37       Focusing Completed Foc1 AutoFocus Completed (Profile No 6)
02:13:45     Target Completed Target completed (10/20, T CrB)
02:13:49     Target Started (11/20) Target started (11/20, HIP 87937)
02:16:27       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
02:18:41       Focusing Completed Foc1 AutoFocus Completed (Profile No 7)
02:21:01   Critical Cloud Alert Critical Cloud Alert (Obs.Manager will close the Dome)
02:21:03   HardSuspend Called Hard Suspend called due to Critical Conditions (cloud)
02:21:06     Target Aborted (11/20) Target aborted (11/20, HIP 87937) due to cloud
02:21:08   Queue Paused Queue paused for Session Suspension
02:21:10 Session Suspending Session suspending
02:21:57   Dome Closed Dome closed (Closing time 50s, Zigbee 44s)
02:21:59 Session Suspended Session suspended
02:36:23 Session Resuming Session resuming
02:37:08   Dome Opened Dome opened (Opening time 45s, Zigbee 41s)
02:37:11 Session Running Session running
02:37:13   Queue Resumed Observing Queue resumed
02:37:16     Target Started (12/20) Target started (12/20, PCG 1525+2956)
02:45:21     Target Completed Target partially completed (12/20, PCG 1525+2956)
02:45:25     Target Started (13/20) Target started (13/20, IC 4556 w/SN2026fuz)
02:48:36       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
02:51:04       Focusing Completed Foc1 AutoFocus Completed (Profile No 8)
03:04:31   Critical Cloud Alert Critical Cloud Alert (Obs.Manager will close the Dome)
03:04:33   HardSuspend Called Hard Suspend called due to Critical Conditions (cloud)
03:04:35     Target Aborted (13/20) Target aborted (13/20, IC 4556 w/SN2026fuz) due to cloud
03:04:37   Queue Paused Queue paused for Session Suspension
03:04:39 Session Suspending Session suspending
03:05:26   Dome Closed Dome closed (Closing time 50s, Zigbee 44s)
03:05:29 Session Suspended Session suspended
03:07:31 Session Resuming Session resuming
03:08:17   Dome Opened Dome opened (Opening time 46s, Zigbee 41s)
03:08:19 Session Running Session running
03:08:21   Queue Resumed Observing Queue resumed
03:08:23     Target Started (14/20) Target started (14/20, AT2026hur)
03:28:05     Target Completed Target completed (14/20, AT2026hur)
03:28:09     Target Started (15/20) Target started (15/20, NGC 6070 w/SN2026ejy)
03:32:26       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-LSI)
03:48:32     Target Completed Target completed (15/20, NGC 6070 w/SN2026ejy)
03:49:07     Target Started (16/20) Target started (16/20, Nova Ser 2025 (Nova))
03:54:13       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
03:56:57       Focusing Completed Foc1 AutoFocus Completed (Profile No 9)
04:03:15     Target Completed Target completed (16/20, Nova Ser 2025 (Nova))
04:03:19     Target Started (17/20) Target started (17/20, GCVS CY Lyr)
04:07:10       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
04:09:14       Focusing Completed Foc1 AutoFocus Completed (Profile No 10)
04:13:02     Target Completed Target completed (17/20, GCVS CY Lyr)
04:13:07     Target Started (18/20) Target started (18/20, 61 Cyg)
04:15:22       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
04:17:25       Focusing Completed Foc1 AutoFocus Completed (Profile No 11)
04:19:21     Target Completed Target completed (18/20, 61 Cyg)
04:19:25     Target Started (19/20) Target started (19/20, GCVS HH And)
04:23:08       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-LSI)
04:25:24     Target Completed Target completed (19/20, GCVS HH And)
04:27:19     Target Started (20/20) Target started (20/20, WDS GRB 34)
04:31:21       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
04:33:28       Focusing Completed Foc1 AutoFocus Completed (Profile No 12)
04:35:32     Target Completed Target completed (20/20, WDS GRB 34)
04:35:34   Queue Completed Job Queue completed
04:35:36 Session Closing Session closing
04:36:24   Dome Closed Dome closed (Closing time 49s, Zigbee 44s)
04:36:55   Dome Parked Dome parked (parking time 23s), Az: 90.0 deg
04:37:51   Telescope Parked Telescope parked (parking time 51s total)
04:38:15   Telescope State Handbox reads 'Scope parked Turn scope off.'
04:38:37   Telescope Switched Off Telescope Power has been switched off via UPB Switch.
04:40:01   Services Stopped Night Services stopped
04:40:04 Session Finishing Session Finishing started (Create Fits Summary, Transfer Files)
04:40:56     Dome (Find Park) Find Park started (Search Az 80.0 to 100.0°, Step 1.0°, Wide)
04:41:51     Dome Find Park found (Best Park Az 91.0°)
04:41:57     Dome (Find Park) Find Park started (Search Az 89.0 to 93.0°, Step 0.2°, Narrow)
04:42:41     Dome Find Park found (Best Park Az 91.0°)
04:42:47     Dome Dome has been synced at park position (Az 90.0°, Adjustment: -1.0°)
04:42:49   Dome Parked Dome parked
04:45:50   Dome Charging Dome hasn't started re-charging after 3.0 minutes
04:45:52 Session Finished Session Finished
 
Session Alerts & Alarms
Time     Type       Name Detail
04:45:50 Yellow Alert Dome Charging Dome hasn't started re-charging after 3.0 minutes
 

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This Web Page Notes - Session 1418 (2026-04-09)
Last Updated : 2026-04-12
Site Owner : David Richards
Home Page : David's Astronomy Web Site