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 Notes - Session 1454 (2026-09-17)

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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)
   
Bullet Images from 2026-09-17  >>           
   
   

Session Aims & Highlights (2026-09-17)

Main aims

  1. Targets.  Acquire images of a selection of variable stars, nearby stars, comets & deep sky targets as allowed by sky conditions.
  2. AstroMain. Check new AstroMain xx.xx  version for any issues or problems following introduction of a number of changes.

 Equipment & Software

Highlights

Notes

Summary Plots & Logs

Observing Plan
Image
  
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
21:04:11 Session Monitoring AutoStart monitoring for Live Session opportunity between 21:04 & 05:06
21:04:15 Session AutoStarting Session autostarting (21:04)
21:04:21 Session Created Session Created (Live, 2026-09-17 S01454)
21:04:24   CCDSoft Restarting CCDSoft being restarted (to set AutoSave No.)
21:04:48   Scope Switched On Telescope Power has been switched on via UPB Switch
21:06:40   Services Started Observatory Services started
21:06:49 Observatory (Auto) Observatory placed in Fully-Automated Mode
21:06:51 Session Pending Session pending (2026-09-17)
21:06:53 Session Initiating Session initiating (2026-09-17)
21:07:14   Camera1 Connected SBIG Camera connected (Set point -15°C)
21:07:17   Plan Requested Observing Plan requested from AstroPlan (1.47.2)
21:07:55   Plan Loaded Observing Plan loaded to queue (PlanID: 1255)
21:08:34   Telescope Connected Telescope connected (TheSky6)
21:08:58 Session Equilibration Session ready to Open Dome
21:09:44   Dome Opened Dome opened (Opening time 45s, Zigbee 40s)
21:09:47 Session Running Session running
21:09:49   Queue Started Observing Queue started (28 targets selected)
21:09:54     Target Started (NrZen) Target started (Focus Field 20, HIP 99625)
21:10:08       Dome Unparked Dome unparked
21:13:04   Critical Cloud Alert Critical Cloud Alert (Obs.Manager will close the Dome)
21:13:06   HardSuspend Called Hard Suspend called due to Critical Conditions (cloud)
21:13:40   Queue Paused Observing Queue pausing for Session Suspension
21:13:45 Session Suspending Session suspending
21:14:35   Dome Closed Dome closed (Closing time 50s, Zigbee 43s)
21:14:36 Session Suspended Session suspended
21:34:07     Target Cancelled Target cancelled (1/28, T CrB) due to cloud
21:40:11 Session Resuming Session resuming
21:40:57   Dome Opened Dome opened (Opening time 45s, Zigbee 40s)
21:40:58 Session Running Session running
21:41:01   Queue Resumed Observing Queue resumed
21:41:03     Target Started (2/28) Target started (2/28, GCVS AM Her)
21:43:02   Critical Cloud Alert Critical Cloud Alert (Obs.Manager will close the Dome)
21:43:04   HardSuspend Called Hard Suspend called due to Critical Conditions (cloud)
21:43:06     Target Aborted (2/28) Target aborted (2/28, GCVS AM Her) due to cloud
21:43:08   Queue Paused Queue paused for Session Suspension
21:43:10 Session Suspending Session suspending
21:43:52   Dome Closed Dome closed (Closing time 45s, Zigbee 42s)
21:43:53 Session Suspended Session suspended
21:45:33     Target Cancelled Target cancelled (2/28, GCVS AM Her) due to cloud
22:05:26     Target Cancelled Target cancelled (3/28, Nova Aql 2026 (Nova)) due to cloud
22:16:14     Target Cancelled Target cancelled (4/28, GCVS CY Lyr) due to cloud
22:27:22     Target Cancelled Target cancelled (5/28, GCVS CI Cyg) due to cloud
22:38:57     Target Cancelled Target cancelled (6/28, AT2026iul (CV)) due to cloud
22:46:23 Session Resuming Session resuming
22:47:08   Dome Opened Dome opened (Opening time 45s, Zigbee 40s)
22:47:10 Session Running Session running
22:47:12   Queue Resumed Observing Queue resumed
22:47:14     Target Started (7/28) Target started (7/28, AT2026kwi)
22:49:17       Focusing Started-Foc2 Foc2 Focusing Started (Secondary Scope, using ShCap)
22:51:07       Focusing Completed Foc2 AutoFocus Completed (Profile No 1, wide)
22:52:48       Focusing Completed Foc2 AutoFocus Completed (Profile No 1)
22:54:43       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
22:55:08   Critical Cloud Alert Critical Cloud Alert (Obs.Manager will close the Dome)
22:55:10   HardSuspend Called Hard Suspend called due to Critical Conditions (cloud)
22:55:13       Focusing Aborted Foc1 Focusing Aborted
22:55:16     Target Aborted (7/28) Target aborted (7/28, AT2026kwi) due to cloud
22:55:18   Queue Paused Queue paused for Session Suspension
22:55:20 Session Suspending Session suspending
22:56:03   Dome Closed Dome closed (Closing time 45s, Zigbee 42s)
22:56:05 Session Suspended Session suspended
22:58:57     Target Cancelled Target cancelled (7/28, AT2026kwi) due to cloud
23:11:15     Target Cancelled Target cancelled (8/28, GCVS BL Lac) due to cloud
23:11:55 Session Resuming Session resuming
23:12:40   Dome Opened Dome opened (Opening time 45s, Zigbee 40s)
23:12:42 Session Running Session running
23:12:44   Queue Resumed Observing Queue resumed
23:12:46     Target Started (9/28) Target started (9/28, PCG 2350+1437)
23:16:33       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
23:20:13       Focusing Completed Foc1 AutoFocus Completed (Profile No 3, wide)
23:20:51   Critical Cloud Alert Critical Cloud Alert (Obs.Manager will close the Dome)
23:20:53   HardSuspend Called Hard Suspend called due to Critical Conditions (cloud)
23:20:55       Focusing Aborted Foc1 Focusing Aborted
23:20:57     Target Aborted (9/28) Target aborted (9/28, PCG 2350+1437) due to cloud
23:20:59   Queue Paused Queue paused for Session Suspension
23:21:01 Session Suspending Session suspending
23:21:46   Dome Closed Dome closed (Closing time 49s, Zigbee 43s)
23:21:47 Session Suspended Session suspended
23:31:35     Target Cancelled Target cancelled (9/28, PCG 2350+1437) due to cloud
23:53:55     Target Cancelled Target cancelled (10/28, UGC 279 w/SN2026zyf) due to cloud
00:16:15     Target Cancelled Target cancelled (11/28, NGC 7331 w/SN2026aaiv) due to cloud
00:27:27     Target Cancelled Target cancelled (12/28, GCVS HH And) due to cloud
00:46:52     Target Cancelled Target cancelled (13/28, SHK 31) due to cloud
01:00:27     Target Cancelled Target cancelled (14/28, GCVS DY Per) due to cloud
01:20:17     Target Cancelled Target cancelled (15/28, UGC 242 w/SN2026yum) due to cloud
01:42:17     Target Cancelled Target cancelled (16/28, M31 w/AT2026aabo) due to cloud
01:54:27     Target Cancelled Target cancelled (17/28, GCVS RX And) due to cloud
02:13:57     Target Cancelled Target cancelled (18/28, SHK 43) due to cloud
02:35:57     Target Cancelled Target cancelled (19/28, AT2026yvx) due to cloud
02:37:29 Session Resuming Session resuming
02:38:14   Dome Opened Dome opened (Opening time 45s, Zigbee 40s)
02:38:16 Session Running Session running
02:38:18   Queue Resumed Observing Queue resumed
02:38:20     Target Started (20/28) Target started (20/28, AT2026yvy)
02:42:59       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-LSI)
02:59:11     Target Completed Target completed (20/28, AT2026yvy)
03:01:02     Target Started (21/28) Target started (21/28, (2) Pallas)
03:04:58       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
03:07:35       Focusing Completed Foc1 AutoFocus Completed (Profile No 4, wide)
03:09:49       Focusing Completed Foc1 AutoFocus Completed (Profile No 4)
03:12:26     Target Completed Target completed (21/28, (2) Pallas)
03:12:30     Target Started (22/28) Target started (22/28, Gliese 65)
03:16:40       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-LSI)
03:23:57     Target Completed Target completed (22/28, Gliese 65)
03:24:01     Target Started (23/28) Target started (23/28, 220P/McNaught)
03:27:57       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-LSI)
03:38:35     Target Completed Target completed (23/28, 220P/McNaught)
03:39:42     Target Started (24/28) Target started (24/28, Nova Per 2020)
03:42:49       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
03:45:07       Focusing Completed Foc1 AutoFocus Completed (Profile No 5)
04:01:12     Target Completed Target completed (24/28, Nova Per 2020)
04:02:02     Target Started (25/28) Target started (25/28, C/2022 N2 (PANSTARRS))
04:05:26       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-LSI)
04:14:21     Target Completed Target completed (25/28, C/2022 N2 (PANSTARRS))
04:16:34     Target Started (26/28) Target started (26/28, UGC 4424 w/AT2026aaee)
04:21:59       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
04:24:24       Focusing Completed Foc1 AutoFocus Completed (Profile No 6)
04:40:40     Target Completed Target completed (26/28, UGC 4424 w/AT2026aaee)
04:40:44     Target Started (27/28) Target started (27/28, GCVS RZ LMi)
04:44:52       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
04:47:09       Focusing Completed Foc1 AutoFocus Completed (Profile No 7)
04:51:31   Critical Cloud Alert Critical Cloud Alert (Obs.Manager will close the Dome)
04:51:33   HardSuspend Called Hard Suspend called due to Critical Conditions (cloud)
04:51:35     Target Aborted (27/28) Target aborted (27/28, GCVS RZ LMi) due to cloud
04:51:37   Queue Paused Queue paused for Session Suspension
04:51:39 Session Suspending Session suspending
04:52:22   Dome Closed Dome closed (Closing time 45s, Zigbee 43s)
04:52:23 Session Suspended Session suspended
05:03:07 Session Resuming Session resuming
05:03:53   Dome Opened Dome opened (Opening time 45s, Zigbee 40s)
05:03:55 Session Running Session running
05:03:57   Queue Resumed Observing Queue resumed
05:03:59     Target Started (28/28) Target started (28/28, NGC 3310 w/SN2026sqf)
05:09:13   Critical Cloud Alert Critical Cloud Alert (Obs.Manager will close the Dome)
05:09:15   HardSuspend Called Hard Suspend called due to Critical Conditions (cloud)
05:09:17     Target Aborted (28/28) Target aborted (28/28, NGC 3310 w/SN2026sqf) due to cloud
05:09:19   Queue Paused Queue paused for Session Suspension
05:09:21 Session Suspending Session suspending
05:10:03   Dome Closed Dome closed (Closing time 45s, Zigbee 43s)
05:10:05 Session Suspended Session suspended
05:19:48     Target Cancelled Target cancelled (28/28, NGC 3310 w/SN2026sqf) due to cloud
05:19:52   Queue Completed Job Queue completed
05:19:54 Session Closing Session closing
05:19:55   Dome Closed Dome already closed (closed at 05:10, closing time 45s, zigbee 43s)
05:20:27   Dome Parked Dome parked (parking time 21s), Az: 90.0 deg
05:21:19   Telescope Parked Telescope parked (parking time 48s total)
05:21:43   Telescope State Handbox reads 'Scope parked Turn scope off.'
05:22:40   Telescope Switched Off Telescope Power has been switched off via UPB Switch.
05:24:06   Services Stopped Night Services stopped
05:24:09 Session Finishing Session Finishing started (Create Fits Summary, Transfer Files)
05:24:36     Dome (Find Park) Find Park started (Search Az 88.0 to 92.0°, Step 0.2°, Narrow)
05:25:20     Dome Find Park found (Best Park Az 90.1°)
05:25:26     Dome Dome has been synced at park position (Az 90.0°, Adjustment: -0.1°)
05:25:28   Dome Parked Dome parked
05:28:30   Dome Charging Dome is parked and well charged (95%, 14.9v)
05:28:32 Session Finished Session Finished
 
Session Alerts & Alarms
Time     Type       Name Detail
05:28:30 Yellow Alert Dome Charging Dome is parked and well charged (95%, 14.9v)
06:25:39 Green Clear Dome Charging Dome is parked and re-charging Ok (46mA)
 

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This Web Page Notes - Session 1454 (2026-09-17)
Last Updated : 2026-10-06
Site Owner : David Richards
Home Page : David's Astronomy Web Site