David's Astronomy Pages
Notes - Session 1367 (2025-09-26)

 
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 (0),  Continuous Improvement (0)
- Figures (0)
   
Bullet Images from 2025-09-26  >>           
   
   

Session Aims & Highlights (2025-09-26)

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
21:10:47 Session Monitoring AutoStart monitoring for Live Session opportunity between 21:10 & 05:17
21:10:51 Session AutoStarting Session autostarting (21:10)
21:11:04   CCDSoft Restarting CCDSoft being restarted (to set AutoSave No.)
21:11:18 Session Created Session Created (Live, 2025-09-26 S01367, ImageSaveNum: 1367001)
21:11:25   Scope Switched On Telescope Power has been switched on via UPB Switch
21:13:13   Services Started Observatory Services started
21:13:22 Observatory (Auto) Observatory placed in Fully-Automated Mode
21:13:27 Session Pending Session pending (2025-09-26)
21:13:29 Session Initiating Session initiating (2025-09-26)
21:13:47   Camera1 Connected SBIG Camera connected (Set point -10°C)
21:13:50   Plan Requested Observing Plan requested from AstroPlan (1.43.14)
21:14:27   Plan Loaded Observing Plan loaded to queue (Plan ID: 1154)
21:15:07   Telescope Connected Telescope connected (TheSky6)
21:15:31 Session Equilibration Session ready to Open Dome
21:16:17   Dome Opened Dome opened (Opening time 46s, Zigbee 40s)
21:16:51 Session Running Session running
21:16:54   Queue Started Observing Queue started (31 targets selected)
21:16:57     Target Started (NrZen) Target started (Focus Field 19, HIP 93376)
21:17:10       Dome Unparked Dome unparked
21:20:08       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
21:22:43       Focusing Completed Foc1 AutoFocus Completed (Profile No 1, wide)
21:24:59       Focusing Completed Foc1 AutoFocus Completed (Profile No 1)
21:25:01       Focusing Started-Foc2 Foc2 Focusing Started (Secondary Scope, using ShCap)
21:26:44       Focusing Completed Foc2 AutoFocus Completed (Profile No 2, wide)
21:28:21       Focusing Completed Foc2 AutoFocus Completed (Profile No 2)
21:28:41     Target Completed (NrZen) Target completed (Focus Field 19, HIP 93376)
21:30:18     Target Started (1/31) Target started (1/31, T CrB)
21:34:12       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
21:36:27       Focusing Completed Foc1 AutoFocus Completed (Profile No 3)
21:40:34     Target Completed Target completed (1/31, T CrB)
21:41:14     Target Started (2/31) Target started (2/31, GCVS U Her)
21:44:45       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
21:46:49       Focusing Completed Foc1 AutoFocus Completed (Profile No 4)
21:53:26     Target Completed Target completed (2/31, GCVS U Her)
21:55:17     Target Started (3/31) Target started (3/31, C/2023 A3 (Tsuchinshan-ATLAS))
21:58:37       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
22:00:51       Focusing Completed Foc1 AutoFocus Completed (Profile No 5)
22:07:27     Target Completed Target completed (3/31, C/2023 A3 (Tsuchinshan-ATLAS))
22:08:07     Target Started (4/31) Target started (4/31, AT2025hwl (CV))
22:11:47       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
22:14:21       Focusing Completed Foc1 AutoFocus Completed (Profile No 6)
22:30:34     Target Completed Target completed (4/31, AT2025hwl (CV))
22:30:39     Target Started (5/31) Target started (5/31, AT2023ctv)
22:33:43       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
22:36:10       Focusing Completed Foc1 AutoFocus Completed (Profile No 7)
22:48:56       SoftSuspend Called Soft Suspend called due to Deteriorating Conditions (too few stars)
22:49:11   Critical Cloud Alert Critical Cloud Alert (Obs.Manager will close the Dome)
22:49:13   HardSuspend Called Hard Suspend called due to Critical Conditions (cloud)
22:49:14     Target Aborted (5/31) Target aborted (5/31, AT2023ctv) due to cloud
22:49:16   Queue Paused Queue paused for Session Suspension
22:49:18 Session Suspending Session suspending
22:50:06   Dome Closed Dome closed (Closing time 50s, Zigbee 43s)
22:50:08 Session Suspended Session suspended
23:03:03     Target Cancelled Target cancelled (6/31, AT2024ein (CV)) due to cloud
23:15:23     Target Cancelled Target cancelled (7/31, Nova Ser 2025) due to cloud
23:27:43     Target Cancelled Target cancelled (8/31, AT2023hxd (CV)) due to cloud
23:39:01     Target Cancelled Target cancelled (9/31, GCVS WZ Sge) due to cloud
23:51:31     Target Cancelled Target cancelled (10/31, AT2024emc (CV)) due to cloud
00:11:31     Target Cancelled Target cancelled (11/31, AT2025rkp) due to cloud
00:25:51     Target Cancelled Target cancelled (12/31, AT2023ugt (CV)) due to cloud
00:36:59     Target Cancelled Target cancelled (13/31, GCVS SS Cyg) due to cloud
00:45:54     Target Cancelled Target cancelled (14/31, (2) Pallas) due to cloud
00:57:34     Target Cancelled Target cancelled (15/31, AT2022rxf (CV)) due to cloud
01:17:34     Target Cancelled Target cancelled (16/31, AT2023qox (CV)) due to cloud
01:31:54     Target Cancelled Target cancelled (17/31, AT2022acym (CV)) due to cloud
01:42:12     Target Cancelled Target cancelled (18/31, KIC 8462852) due to cloud
01:52:30     Target Cancelled Target cancelled (19/31, GCVS BL Lac) due to cloud
02:12:30     Target Cancelled Target cancelled (20/31, AT2025vel) due to cloud
02:34:30     Target Cancelled Target cancelled (21/31, UGC 3458 w/SN2025yao) due to cloud
02:56:30     Target Cancelled Target cancelled (22/31, AT2025kjq) due to cloud
03:18:50     Target Cancelled Target cancelled (23/31, AT2022rhv (CV)) due to cloud
03:32:04     Target Cancelled Target cancelled (24/31, GCVS Z And) due to cloud
03:51:19     Target Cancelled Target cancelled (25/31, M31 w/AT2023ufk) due to cloud
04:13:39     Target Cancelled Target cancelled (26/31, NGC 7626) due to cloud
04:25:49     Target Cancelled Target cancelled (27/31, GCVS RX And) due to cloud
04:35:17     Target Cancelled Target cancelled (28/31, GCVS ER UMa) due to cloud
04:55:37     Target Cancelled Target cancelled (29/31, IC 2567 w/SN2025kid) due to cloud
05:20:57     Target Cancelled Target cancelled (30/31, C/2025 A6 (Lemmon)) due to cloud
05:42:05     Target Cancelled Target cancelled (31/31, GCVS RZ LMi) due to cloud
05:42:09   Queue Completed Job Queue completed
05:42:11 Session Closing Session closing
05:42:16   Dome Closed Dome already closed (closed at 22:50, closing time 50s, zigbee 43s)
05:43:32   Dome Parked Dome parked (parking time 68s), Az: 90.0 deg
05:44:15   Telescope Parked Telescope parked (parking time 38s total)
05:44:39   Telescope State Handbox reads 'Scope parked Turn scope off.'
05:45:01   Telescope Switched Off Telescope Power has been switched off via UPB Switch.
05:46:28   Services Stopped Night Services stopped
05:46:31 Session Finishing Session Finishing started (Create Fits Summary, Transfer Files)
05:46:43     Dome (Find Park) Find Park started (Search Az 80.0 to 100.0°, Step 1.0°, Wide)
05:47:23     Dome Find Park found (Best Park Az 86.5°)
05:47:29     Dome (Find Park) Find Park started (Search Az 84.4 to 88.4°, Step 0.2°, Narrow)
05:48:13     Dome Find Park found (Best Park Az 86.4°)
05:48:19     Dome Dome has been synced at park position (Az 90.0°, Adjustment: +3.6°)
05:48:21   Dome Parked Dome parked
05:48:36   Dome Charging Dome is parked and re-charging Ok (17mA)
05:48:38 Session Finished Session Finished
 
Session Alerts & Alarms
Time     Type       Name Detail
05:48:36 Green Clear Dome Charging Dome is parked and re-charging Ok (17mA)
 

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Operational Issues (2025-09-26 S1367)

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