David's Astronomy Pages
Notes - Session 1406 (2026-03-13)

 
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 (1),  Continuous Improvement (4)
- Figures (0)
   
Bullet Images from 2026-03-13  >>           
   
2026-03-11
Bullet Siril 1.4.2
Bullet ZWO ASI Camera Driver 3.27
   
   

Session Aims & Highlights (2026-03-13)

Main aims

  1. Targets.  Acquire images of a selection of variable stars, nearby stars, comets & deep sky targets as allowed by sky conditions.
  2. ShCap Imaging/Processing.   Continue testing of AstroMain/AstroShCap routines and workflow including Siril scripts

 Equipment & Software

Highlights

Notes

Summary Plots & Logs

Observing Plan
Image
  
Observing Result
Image
   
Image
 
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)
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   
  
Actual Weather vs Pre-Session Weather Forecast
Image
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Session Event Log
Time     Event Detail
19:21:42 Session Monitoring AutoStart monitoring for Live Session opportunity between 19:21 & 04:40
19:21:44 Session AutoStarting Session autostarting (19:21)
19:21:50 Session Created Session Created (Live, 2026-03-13 S01406)
19:21:52   CCDSoft Restarting CCDSoft being restarted (to set AutoSave No.)
19:22:12   Scope Switched On Telescope Power has been switched on via UPB Switch
19:23:49   Services Started Observatory Services started
19:23:58 Observatory (Auto) Observatory placed in Fully-Automated Mode
19:24:01 Session Pending Session pending (2026-03-13)
19:24:03 Session Initiating Session initiating (2026-03-13)
19:24:23   Camera1 Connected SBIG Camera connected (Set point -20°C)
19:24:26   Plan Requested Observing Plan requested from AstroPlan (1.46.2)
19:25:04   Plan Loaded Observing Plan loaded to queue (PlanID: 1204)
19:25:43   Telescope Connected Telescope connected (TheSky6)
19:26:08 Session Equilibration Session ready to Open Dome
19:26:53   Dome Opened Dome opened (Opening time 45s, Zigbee 41s)
19:27:28 Session Running Session running
19:27:31   Queue Started Observing Queue started (31 targets selected)
19:27:38     Target Started (NrZen) Target started (Focus Field 7, HIP 34070)
19:27:53       Dome Unparked Dome unparked
19:31:35       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
19:33:42       Focusing Completed Foc1 AutoFocus Completed (Profile No 1, wide)
19:35:14   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
19:35:16   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
19:35:18       Focusing Aborted Foc1 Focusing Aborted due to HardSuspend
19:35:20     Target Aborted (NrZen) Target aborted (Focus Field 7, HIP 34070) due to rain
19:35:22   Queue Paused Observing Queue pausing for Session Suspension
19:35:24 Session Suspending Session suspending
19:36:09   Dome Closed Dome closed (Closing time 50s, Zigbee 43s)
19:36:11 Session Suspended Session suspended
19:38:09 Session Resuming Session resuming
19:38:24   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
19:38:26   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
19:38:28     Target Aborted (1/31) Target aborted (1/31, C/2024 E1 (Wierzchos)) due to rain
19:38:30   Queue Paused Queue paused for Session Suspension
19:38:54   Dome Opened Dome opened (Opening time 45s, Zigbee 41s)
19:38:57 Session Running Session running
19:38:59   Queue Resumed Observing Queue resumed
19:39:01   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
19:39:03   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
19:39:05   Queue Paused Observing Queue pausing for Session Suspension
19:39:07 Session Suspending Session suspending
19:39:49   Dome Closed Dome closed (Closing time 50s, Zigbee 43s)
19:39:52 Session Suspended Session suspended
19:42:34 Session Resuming Session resuming
19:43:20   Dome Opened Dome opened (Opening time 45s, Zigbee 41s)
19:43:22 Session Running Session running
19:43:24   Queue Resumed Observing Queue resumed
19:43:26     Target Started (1/31) Target started (1/31, C/2024 E1 (Wierzchos))
19:44:59   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
19:45:01   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
19:45:03     Target Aborted (1/31) Target aborted (1/31, C/2024 E1 (Wierzchos)) due to rain
19:45:05   Queue Paused Queue paused for Session Suspension
19:45:07 Session Suspending Session suspending
19:45:50   Dome Closed Dome closed (Closing time 50s, Zigbee 43s)
19:45:52 Session Suspended Session suspended
19:48:10 Session Resuming Session resuming
19:48:55   Dome Opened Dome opened (Opening time 45s, Zigbee 41s)
19:48:58 Session Running Session running
19:49:00   Queue Resumed Observing Queue resumed
19:49:02     Target Started (1/31) Target started (1/31, C/2024 E1 (Wierzchos))
19:50:15   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
19:50:17   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
19:50:19     Target Aborted (1/31) Target aborted (1/31, C/2024 E1 (Wierzchos)) due to rain
19:50:21   Queue Paused Queue paused for Session Suspension
19:50:23 Session Suspending Session suspending
19:51:05   Dome Closed Dome closed (Closing time 50s, Zigbee 43s)
19:51:08 Session Suspended Session suspended
19:54:22     Target Cancelled Target cancelled (1/31, C/2024 E1 (Wierzchos)) due to rain
20:14:42     Target Cancelled Target cancelled (2/31, UGC 3028 w/SN2026gm) due to rain
20:37:02     Target Cancelled Target cancelled (3/31, AT2026eva) due to cloud
20:59:02     Target Cancelled Target cancelled (4/31, UGC 5381 w/SN2025ahep) due to cloud
21:09:12 Session Resuming Session resuming
21:09:57   Dome Opened Dome opened (Opening time 45s, Zigbee 41s)
21:10:00 Session Running Session running
21:10:02   Queue Resumed Observing Queue resumed
21:10:04     Target Started (5/31) Target started (5/31, WDS GRB 34)
21:14:35       Focusing Started-Foc2 Foc2 Focusing Started (Secondary Scope, using ShCap)
21:16:40       Focusing Completed Foc2 AutoFocus Completed (Profile No 2, wide)
21:18:23       Focusing Completed Foc2 AutoFocus Completed (Profile No 2)
21:20:33       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
21:24:18       Focusing Completed Foc1 AutoFocus Completed (Profile No 3, wide)
21:26:24       Focusing Completed Foc1 AutoFocus Completed (Profile No 3)
21:28:33     Target Completed Target completed (5/31, WDS GRB 34)
21:28:37     Target Started (6/31) Target started (6/31, AT2026evo (CV))
21:34:46     Target Failed (6/31) Target failed due to exceeded time slot (6/31, AT2026evo (CV))
21:34:50     Target Started (7/31) Target started (7/31, SHK 95)
21:39:29       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-LSI)
21:39:45   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
21:39:47   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
21:39:49     Target Aborted (7/31) Target aborted (7/31, SHK 95) due to rain
21:39:51   Queue Paused Queue paused for Session Suspension
21:39:53 Session Suspending Session suspending
21:40:40   Dome Closed Dome closed (Closing time 50s, Zigbee 44s)
21:40:43 Session Suspended Session suspended
21:43:56 Session Resuming Session resuming
21:44:41   Dome Opened Dome opened (Opening time 45s, Zigbee 41s)
21:44:43 Session Running Session running
21:44:45   Queue Resumed Observing Queue resumed
21:44:48     Target Started (7/31) Target started (7/31, SHK 95)
21:45:00   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
21:45:02   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
21:45:11 Session Suspending Session suspending
21:45:15     Target Aborted (7/31) Target aborted (7/31, SHK 95) due to rain
21:45:17   Queue Paused Queue paused for Session Suspension
21:46:01   Dome Closed Dome closed (Closing time 49s, Zigbee 44s)
21:46:03 Session Suspended Session suspended
21:52:10     Target Cancelled Target cancelled (7/31, SHK 95) due to rain
21:59:02 Session Resuming Session resuming
21:59:42   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
21:59:44   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
21:59:46     Target Aborted (8/31) Target aborted (8/31, SHK 345) due to rain
21:59:48   Queue Paused Queue paused for Session Suspension
21:59:50   Dome Opened Dome opened (Opening time 45s, Zigbee 41s)
21:59:52 Session Running Session running
21:59:54   Queue Resumed Observing Queue resumed
21:59:56   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
21:59:58   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
22:00:00     Target Started (8/31) Target started (8/31, SHK 345)
22:00:02     Target Aborted (8/31) Target aborted (8/31, SHK 345) due to rain
22:00:04   Queue Paused Queue paused for Session Suspension
22:00:06 Session Suspending Session suspending
22:00:47   Dome Closed Dome closed (Closing time 50s, Zigbee 44s)
22:00:49 Session Suspended Session suspended
22:03:12 Session Resuming Session resuming
22:03:57   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
22:03:59   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
22:04:01     Target Aborted (8/31) Target aborted (8/31, SHK 345) due to rain
22:04:03   Queue Paused Queue paused for Session Suspension
22:04:05   Dome Opened Dome opened (Opening time 45s, Zigbee 41s)
22:04:07 Session Running Session running
22:04:09   Queue Resumed Observing Queue resumed
22:04:11   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
22:04:13   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
22:04:15     Target Started (8/31) Target started (8/31, SHK 345)
22:04:17     Target Aborted (8/31) Target aborted (8/31, SHK 345) due to rain
22:04:19   Queue Paused Queue paused for Session Suspension
22:04:21 Session Suspending Session suspending
22:04:58   Dome Closed Dome closed (Closing time 50s, Zigbee 44s)
22:05:00 Session Suspended Session suspended
22:14:30     Target Cancelled Target cancelled (8/31, SHK 345) due to cloud
22:34:02     Target Cancelled Target cancelled (9/31, 29P/Schwassmann-Wachmann) due to rain
22:54:52     Target Cancelled Target cancelled (10/31, NGC 3660 w/SN2026cff) due to rain
23:17:12     Target Cancelled Target cancelled (11/31, PCG 1156+0318) due to rain
23:39:32     Target Cancelled Target cancelled (12/31, SHK 348) due to cloud
00:01:52     Target Cancelled Target cancelled (13/31, PCG 1044+0248) due to cloud
00:24:12     Target Cancelled Target cancelled (14/31, PCG 1100+0824) due to cloud
00:46:32     Target Cancelled Target cancelled (15/31, PCG 1045+2027) due to cloud
01:08:52     Target Cancelled Target cancelled (16/31, PCG 1212+2235) due to cloud
01:30:52     Target Cancelled Target cancelled (17/31, Z 160-45 w/SN2025abwt) due to cloud
01:53:12     Target Cancelled Target cancelled (18/31, M63) due to cloud
02:15:32     Target Cancelled Target cancelled (19/31, PCG 1352+1234) due to cloud
02:33:10     Target Cancelled Target cancelled (20/31, 24P/Schaumasse) due to too few stars
02:34:22 Session Resuming Session resuming
02:35:07   Dome Opened Dome opened (Opening time 45s, Zigbee 42s)
02:35:09 Session Running Session running
02:35:11   Queue Resumed Observing Queue resumed
02:35:13     Target Started (21/31) Target started (21/31, UGC 11058 w/SN2026ewd)
02:39:29       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
02:41:41       Focusing Completed Foc1 AutoFocus Completed (Profile No 4)
02:58:27     Target Completed Target completed (21/31, UGC 11058 w/SN2026ewd)
02:58:31     Target Started (22/31) Target started (22/31, T CrB)
03:02:01       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
03:04:11       Focusing Completed Foc1 AutoFocus Completed (Profile No 5)
03:08:15     Target Completed Target completed (22/31, T CrB)
03:08:20     Target Started (23/31) Target started (23/31, NGC 6070 w/SN2026ejy)
03:12:45       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-LSI)
03:28:58     Target Completed Target completed (23/31, NGC 6070 w/SN2026ejy)
03:29:50     Target Started (24/31) Target started (24/31, GCVS CY Lyr)
03:33:14       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
03:35:25       Focusing Completed Foc1 AutoFocus Completed (Profile No 6)
03:39:11     Target Completed Target completed (24/31, GCVS CY Lyr)
03:40:08     Target Started (25/31) Target started (25/31, GCVS AM Her)
03:43:43       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
03:45:51       Focusing Completed Foc1 AutoFocus Completed (Profile No 7)
03:51:26     Target Completed Target completed (25/31, GCVS AM Her)
03:51:49     Target Started (26/31) Target started (26/31, GCVS BL Lac)
03:55:36       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
03:57:53       Focusing Completed Foc1 AutoFocus Completed (Profile No 8)
04:01:42     Target Completed Target completed (26/31, GCVS BL Lac)
04:02:07     Target Started (27/31) Target started (27/31, Nova Cas 2021 (Nova))
04:05:14       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
04:07:30       Focusing Completed Foc1 AutoFocus Completed (Profile No 9)
04:12:46     Target Completed Target completed (27/31, Nova Cas 2021 (Nova))
04:13:12     Target Started (28/31) Target started (28/31, GCVS HH And)
04:17:02       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
04:19:18       Focusing Completed Foc1 AutoFocus Completed (Profile No 10)
04:21:07     Target Completed Target completed (28/31, GCVS HH And)
04:21:29     Target Started (29/31) Target started (29/31, Berkeley 50). Using SharpCap
04:23:49       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
04:26:03       Focusing Completed Foc1 AutoFocus Completed (Profile No 11)
04:36:23       Dome Unparked Dome unparked
04:38:39       Camera1 Connected SBIG Camera connected (Set point -25°C)
04:38:41     Target Completed Target completed (29/31, Berkeley 50)
04:38:43     Target Started (30/31) Target started (30/31, 61 Cyg)
04:43:49       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
04:45:52       Focusing Completed Foc1 AutoFocus Completed (Profile No 12)
04:47:43     Target Completed Target completed (30/31, 61 Cyg)
04:47:47     Target Started (31/31) Target started (31/31, GCVS Z And)
04:51:13       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
04:53:26       Focusing Completed Foc1 AutoFocus Completed (Profile No 13)
04:57:03     Target Completed Target completed (31/31, GCVS Z And)
04:57:05   Queue Completed Job Queue completed
04:57:07 Session Closing Session closing
04:57:55   Dome Closed Dome closed (Closing time 48s, Zigbee 45s)
04:58:26   Dome Parked Dome parked (parking time 23s), Az: 90.0 deg
04:59:18   Telescope Parked Telescope parked (parking time 47s total)
04:59:42   Telescope State Handbox reads 'Scope parked Turn scope off.'
05:00:51   Telescope Switched Off Telescope Power has been switched off via UPB Switch.
05:02:17   Services Stopped Night Services stopped
05:02:20 Session Finishing Session Finishing started (Create Fits Summary, Transfer Files)
05:02:52     Dome (Find Park) Find Park started (Search Az 88.0 to 92.0°, Step 0.2°, Narrow)
05:03:39     Dome Find Park found (Best Park Az 90.4°)
05:03:45     Dome Dome has been synced at park position (Az 90.0°, Adjustment: -0.4°)
05:03:48   Dome Parked Dome parked
05:03:55   Dome Charging Dome is parked and re-charging Ok (25mA)
05:03:57 Session Finished Session Finished
 
Session Alerts & Alarms
Time     Type       Name Detail
05:03:55 Green Clear Dome Charging Dome is parked and re-charging Ok (25mA)
 

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Operational Issues (2026-03-13 S1406)

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2026-03-14


Siril 1.4.2

Siril application was updated to 1.4.2 on Development Computer (2026-03-14) and Observatory Computer (2026-03-23)
 [ See https://siril.org/download/2026-02-18-siril-1-4-2/ for details about the version,  released 2026-02-18 ]

Important :

Commands available in the current version (1.4.2) are at  https://siril.readthedocs.io/en/stable/Commands.html

Notes:

And initial attempt to install 1.4.2 on Observatory Computer was made on 2026-03-15,  but it led to Siril crashing immediately upon starting.   Siril was rolled back to Siril 1.2 and then back to 1.4.1,  but there were warnings that Python Modules /venv couldn't be loaded.  It was determined that this was a block by Kaspersky Security System running on the computer.   Eventually resolved by removing the old Kapsersky program and installing the latest product program.  This fixed the Python Module loading. Finally installed 1.4.2 on the Observatory Computer on 2026-03-23.

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ZWO ASI Camera Driver 3.27

ZWO ASI Camera Driver on Observatory Computer was updated to v3.27 on 2026-03-15
(this replaced the previous installed version (v3.25 ) )

ASI Studio (v1.18) was also installed, including the ASI Fits Viewer.

 [ See https://www.zwoastro.com/software/  ]

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