David's Astronomy Pages
Notes - Session 1362 (2025-09-12)

 
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 2025-09-12  >>           
   
   

Session Aims & Highlights (2025-09-12)

Main aims

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

 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
20:49:19 Session Monitoring AutoStart monitoring for Live Session opportunity between 20:49 & 04:45
20:49:22 Session AutoStarting Session autostarting (20:49)
20:49:35   CCDSoft Restarting CCDSoft being restarted (to set AutoSave No.)
20:49:49 Session Created Session Created (Live, 2025-09-12 S01362, ImageSaveNum: 1362001)
20:49:56   Scope Switched On Telescope Power has been switched on via UPB Switch
20:51:43   Services Started Observatory Services started
20:51:52 Observatory (Auto) Observatory placed in Fully-Automated Mode
20:51:55 Session Pending Session pending (2025-09-12)
20:51:57 Session Initiating Session initiating (2025-09-12)
20:52:13   Camera1 Connected SBIG Camera connected (Set point -10°C)
20:52:16   Plan Requested Observing Plan requested from AstroPlan (1.43.14)
20:52:49   Plan Loaded Observing Plan loaded to queue (Plan ID: 1148)
20:53:28   Telescope Connected Telescope connected (TheSky6)
20:53:52 Session Equilibration Session ready to Open Dome
20:54:37   Dome Opened Dome opened (Opening time 45s, Zigbee 40s)
20:55:17 Session Running Session running
20:55:20   Queue Started Observing Queue started (28 targets selected)
20:55:23     Target Started (NrZen) Target started (Focus Field 19, HIP 93376)
20:55:38       Dome Unparked Dome unparked
20:58:07       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
21:00:33       Focusing Completed Foc1 AutoFocus Completed (Profile No 1, wide)
21:02:32       Focusing Completed Foc1 AutoFocus Completed (Profile No 1)
21:02:35       Focusing Started-Foc2 Foc2 Focusing Started (Secondary Scope, using ShCap)
21:04:18       Focusing Completed Foc2 AutoFocus Completed (Profile No 2, wide)
21:05:54       Focusing Completed Foc2 AutoFocus Completed (Profile No 2)
21:06:14     Target Completed (NrZen) Target completed (Focus Field 19, HIP 93376)
21:08:44     Target Started (1/28) Target started (1/28, Nova Ser 2025)
21:12:17       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
21:15:01       Focusing Completed Foc1 AutoFocus Completed (Profile No 3)
21:20:59     Target Completed Target completed (1/28, Nova Ser 2025)
21:21:03     Target Started (2/28) Target started (2/28, NGC 4475 w/SN2025nat)
21:25:36       Focusing Skipped Foc1 focusing skipped - star is lost (TCF-LSI)
21:41:57     Target Completed Target completed (2/28, NGC 4475 w/SN2025nat)
21:43:04     Target Started (3/28) Target started (3/28, NGC 5957 w/SN2025fvw)
21:47:13       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
21:49:48       Focusing Completed Foc1 AutoFocus Completed (Profile No 4)
22:06:02     Target Completed Target completed (3/28, NGC 5957 w/SN2025fvw)
22:06:06     Target Started (4/28) Target started (4/28, T CrB)
22:09:17       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
22:11:34       Focusing Completed Foc1 AutoFocus Completed (Profile No 5)
22:15:37     Target Completed Target completed (4/28, T CrB)
22:16:21     Target Started (5/28) Target started (5/28, GCVS CY Lyr)
22:19:33       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
22:21:49       Focusing Completed Foc1 AutoFocus Completed (Profile No 6)
22:25:36     Target Completed Target completed (5/28, GCVS CY Lyr)
22:26:38     Target Started (6/28) Target started (6/28, AT2025xdz)
22:31:24       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
22:33:39       Focusing Completed Foc1 AutoFocus Completed (Profile No 7)
22:49:41     Target Completed Target completed (6/28, AT2025xdz)
22:49:45     Target Started (7/28) Target started (7/28, GCVS BL Lac)
22:52:53       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
22:55:09       Focusing Completed Foc1 AutoFocus Completed (Profile No 8)
22:59:12     Target Completed Target completed (7/28, GCVS BL Lac)
22:59:16     Target Started (8/28) Target started (8/28, M31 w/Nova M31 AT2025wwe)
23:05:30       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
23:07:38       Focusing Completed Foc1 AutoFocus Completed (Profile No 9)
23:24:08     Target Completed Target completed (8/28, M31 w/Nova M31 AT2025wwe)
23:24:12     Target Started (9/28) Target started (9/28, GCVS RX And)
23:26:56       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
23:29:08       Focusing Completed Foc1 AutoFocus Completed (Profile No 10)
23:31:40     Target Completed Target completed (9/28, GCVS RX And)
23:31:45     Target Started (10/28) Target started (10/28, AT2023mil)
23:35:20       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
23:37:22       Focusing Completed Foc1 AutoFocus Completed (Profile No 11)
23:53:21     Target Completed Target completed (10/28, AT2023mil)
23:53:26     Target Started (11/28) Target started (11/28, AT2025usz)
23:56:32       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
23:58:46       Focusing Completed Foc1 AutoFocus Completed (Profile No 12)
00:14:43     Target Completed Target completed (11/28, AT2025usz)
00:15:16     Target Started (12/28) Target started (12/28, UGC 11649 w/SN2023eds)
00:19:17       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
00:21:42       Focusing Completed Foc1 AutoFocus Completed (Profile No 13)
00:37:43     Target Completed Target completed (12/28, UGC 11649 w/SN2023eds)
00:37:47     Target Started (13/28) Target started (13/28, AT2025xea)
00:41:09       Focusing Skipped Foc1 focusing skipped - unable to find a star (TCF-LSI)
00:47:00     Target Aborted (13/28) Target aborted (13/28, AT2025xea) due to Priority 1 ToO Target
00:47:05     Target Started (14/29) Target started (14/29, GCVS HH And, ToO)
00:50:16       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
00:52:23       Focusing Completed Foc1 AutoFocus Completed (Profile No 14)
00:54:13     Target Completed Target completed (14/29, GCVS HH And, ToO)
00:59:36     Target Started (15/29) Target started (15/29, UGC 11555 w/SN2023ehl)
01:03:07       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
01:05:51       Focusing Completed Foc1 AutoFocus Completed (Profile No 15)
01:22:07     Target Completed Target completed (15/29, UGC 11555 w/SN2023ehl)
01:22:11     Target Started (16/29) Target started (16/29, C/2024 E1 (Wierzchos))
01:25:05       SoftSuspend Called Soft Suspend called due to Deteriorating Conditions (too few stars)
01:26:27     Target Failed (16/29) Target failed due to cloud (16/29, C/2024 E1 (Wierzchos))
01:26:30   Queue Paused Queue paused for Session Suspension
01:26:32 Session Suspending Session suspending
01:27:20   Dome Closed Dome closed (Closing time 50s, Zigbee 43s)
01:27:23 Session Suspended Session suspended
01:35:04     Target Cancelled Target cancelled (16/29, C/2024 E1 (Wierzchos)) due to cloud
01:43:30     Target Cancelled Target cancelled (17/29, Vega) due to cloud
01:50:56     Target Cancelled Target cancelled (18/29, Vega) due to cloud
01:57:43 Session Resuming Session resuming
01:58:28   Dome Opened Dome opened (Opening time 45s, Zigbee 40s)
01:58:30 Session Running Session running
01:58:32   Queue Resumed Observing Queue resumed
01:58:35     Target Started (19/29) Target started (19/29, GCVS RR Lyr)
02:10:19     Target Completed Target completed (19/29, GCVS RR Lyr)
02:10:23     Target Started (20/29) Target started (20/29, Vega)
02:15:22     Target Completed Target completed (20/29, Vega)
02:15:27     Target Started (21/29) Target started (21/29, GCVS SS Cyg)
02:18:37       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
02:20:44       Focusing Completed Foc1 AutoFocus Completed (Profile No 16)
02:23:54     Target Completed Target completed (21/29, GCVS SS Cyg)
02:23:58     Target Started (22/29) Target started (22/29, MCG -1-60-15 w/SN2022wsr)
02:27:28       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
02:29:55       Focusing Completed Foc1 AutoFocus Completed (Profile No 17)
02:45:52     Target Completed Target completed (22/29, MCG -1-60-15 w/SN2022wsr)
02:45:57     Target Started (23/29) Target started (23/29, UGC 12720 w/SN2025nno)
02:49:06       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
02:51:24       Focusing Completed Foc1 AutoFocus Completed (Profile No 18)
03:07:22     Target Completed Target completed (23/29, UGC 12720 w/SN2025nno)
03:07:53     Target Started (24/29) Target started (24/29, NGC 899)
03:13:14       Focusing Skipped Foc1 focusing skipped - star is lost (TCF-LSI)
03:29:41     Target Completed Target completed (24/29, NGC 899)
03:30:13     Target Started (25/29) Target started (25/29, AT2025kjp)
03:33:32       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
03:36:07       Focusing Completed Foc1 AutoFocus Completed (Profile No 19)
03:52:04     Target Completed Target completed (25/29, AT2025kjp)
03:52:08     Target Started (26/29) Target started (26/29, GCVS TT Ari)
03:56:06       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
03:58:51       Focusing Completed Foc1 AutoFocus Completed (Profile No 20)
04:00:35       SoftSuspend Called Soft Suspend called due to Deteriorating Conditions (too few stars)
04:01:15       SoftSuspend Cancelled Soft Suspend is cancelled due to improved conditions
04:04:57     Target Completed Target completed (26/29, GCVS TT Ari)
04:05:09     Target Started (27/29) Target started (27/29, C/2025 A6 (Lemmon))
04:08:19       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
04:11:15       Focusing Completed Foc1 AutoFocus Completed (Profile No 21)
04:29:27     Target Completed Target completed (27/29, C/2025 A6 (Lemmon))
04:29:31     Target Started (28/29) Target started (28/29, NGC 2744 w/SN2025oq)
04:35:20       Focusing Skipped Foc1 focusing skipped - unable to find a star (TCF-LSI)
04:39:04       SoftSuspend Called Soft Suspend called due to Deteriorating Conditions (too few stars)
04:41:29   Critical Cloud Alert Critical Cloud Alert (Obs.Manager will close the Dome)
04:41:31   HardSuspend Called Hard Suspend called due to Critical Conditions (cloud)
04:41:34     Target Aborted (28/29) Target aborted (28/29, NGC 2744 w/SN2025oq) due to cloud
04:41:36   Queue Paused Queue paused for Session Suspension
04:41:38 Session Suspending Session suspending
04:42:24   Dome Closed Dome closed (Closing time 50s, Zigbee 43s)
04:42:27 Session Suspended Session suspended
04:47:45     Target Cancelled Target cancelled (28/29, NGC 2744 w/SN2025oq) due to cloud
05:10:03     Target Cancelled Target cancelled (29/29, GCVS ER UMa) due to cloud
05:10:07   Queue Completed Job Queue completed
05:10:12 Session Closing Session closing
05:10:17   Dome Closed Dome already closed (closed at 04:42, closing time 50s, zigbee 43s)
05:10:35   Dome Parked Dome parked (parking time 10s), Az: 90.0 deg
05:11:25   Telescope Parked Telescope parked (parking time 46s total)
05:11:49   Telescope State Handbox reads 'Scope parked Turn scope off.'
05:12:11   Telescope Switched Off Telescope Power has been switched off via UPB Switch.
05:13:34   Services Stopped Night Services stopped
05:13:37 Session Finishing Session Finishing started (Create Fits Summary, Transfer Files)
05:14:04     Dome (Find Park) Find Park started (Search Az 80.0 to 100.0°, Step 1.0°, Wide)
05:14:43     Dome Find Park found (Best Park Az 86.0°)
05:14:49     Dome (Find Park) Find Park started (Search Az 84.0 to 88.0°, Step 0.2°, Narrow)
05:15:35     Dome Find Park found (Best Park Az 85.7°)
05:15:41     Dome Dome has been synced at park position (Az 90.0°, Adjustment: +4.3°)
05:15:43   Dome Parked Dome parked
05:16:17   Dome Charging Dome is parked and re-charging Ok (19mA)
05:16:19 Session Finished Session Finished
 
Session Alerts & Alarms
Time     Type       Name Detail
05:16:17 Green Clear Dome Charging Dome is parked and re-charging Ok (19mA)
 

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Operational Issues (2025-09-12 S1362)

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No issues or defects for the S1362 session.

Critical Issues

Major Issues

Minor Issues

Small Defects

Continuous Improvement

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