David's Astronomy Pages
Notes - Session 1429 (2026-05-07)

 
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 2026-05-07  >>           
   
   

Session Aims & Highlights (2026-05-07)

Main aims

  1. Targets.  Acquire images of a selection of variable stars, nearby stars, comets & deep sky targets as allowed by sky conditions.
  2. Observatory Computer. Check and confirm that the Observatory Computer is sufficiently fixed and working following replacement/upgrade of its SSD and potentially show-stopping issue with Windows/PHD2
  3. AstroMain. Check new AstroMain 3.81.12 version for any issues or problems following introduction of a number of changes.

 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
00:00:37 Session Created Session Created (Live, 2026-05-07 S01429)
00:00:39   CCDSoft Restarting CCDSoft being restarted (to set AutoSave No.)
00:02:41 Session Monitoring AutoStart monitoring for Live Session opportunity between 00:02 & 02:56
00:02:43 Observatory (AutoStart) Observatory placed in Auto-Start Mode
00:02:45 Session AutoStarting Session autostarting (00:02)
00:02:48 Session Resumed Session Resumed (Live, 2026-05-07 S01429)
00:02:56   Scope Switched On Telescope Power has been switched on via UPB Switch
00:04:39   Services Started Observatory Services started
00:04:50 Observatory (Auto) Observatory placed in Fully-Automated Mode
00:04:52 Session Pending Session pending (2026-05-07)
00:04:54 Session Initiating Session initiating (2026-05-07)
00:05:18   Camera1 Connected SBIG Camera connected (Set point -15°C)
00:05:24   Plan Requested Observing Plan requested from AstroPlan (1.46.2)
00:06:58   Plan Loaded Observing Plan loaded to queue (PlanID: 1229)
00:07:41   Telescope Connected Telescope connected (TheSky6)
00:08:05 Session Equilibration Session ready to Open Dome
00:08:51   Dome Opened Dome opened (Opening time 46s, Zigbee 40s)
00:08:53 Session Running Session running
00:08:55   Queue Started Observing Queue started (11 targets selected)
00:09:00     Target Started (NrZen) Target started (Focus Field 14, HIP 69068)
00:09:10       Dome Unparked Dome unparked
00:13:14       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
00:15:31       Focusing Completed Foc1 AutoFocus Completed (Profile No 1, wide)
00:17:32       Focusing Completed Foc1 AutoFocus Completed (Profile No 1)
00:17:41       Focusing Started-Foc2 Foc2 Focusing Started (Secondary Scope, using ShCap)
00:19:21       Focusing Completed Foc2 AutoFocus Completed (Profile No 2, wide)
00:20:53       Focusing Completed Foc2 AutoFocus Completed (Profile No 2)
00:21:09     Target Completed (NrZen) Target completed (Focus Field 14, HIP 69068)
00:21:52     Target Started (1/11) Target started (1/11, 29P/Schwassmann-Wachmann)
00:26:44       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-LSI)
00:38:30     Target Completed Target completed (1/11, 29P/Schwassmann-Wachmann)
00:39:55     Target Started (2/11) Target started (2/11, UGC 5607 w/SN2026kc)
00:44:42       Focusing Skipped Foc1 focusing skipped - star is lost (TCF-LSI)
01:01:38     Target Completed Target completed (2/11, UGC 5607 w/SN2026kc)
01:02:14     Target Started (3/11) Target started (3/11, NGC 4914 w/SN2026fjc)
01:05:39       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
01:08:14       Focusing Completed Foc1 AutoFocus Completed (Profile No 3)
01:24:14     Target Completed Target completed (3/11, NGC 4914 w/SN2026fjc)
01:24:34     Target Started (4/11) Target started (4/11, IC 4556 w/SN2026fuz)
01:28:16       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
01:31:00       Focusing Completed Foc1 AutoFocus Completed (Profile No 4)
01:47:01     Target Completed Target completed (4/11, IC 4556 w/SN2026fuz)
01:47:05     Target Started (5/11) Target started (5/11, T CrB)
01:50:29       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-LSI)
01:54:56     Target Completed Target completed (5/11, T CrB)
01:57:50     Target Started (6/11) Target started (6/11, UGC 11058 w/SN2026ewd)
02:02:02       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
02:04:22       Focusing Completed Foc1 AutoFocus Completed (Profile No 5)
02:20:52     Target Completed Target completed (6/11, UGC 11058 w/SN2026ewd)
02:20:56     Target Started (7/11) Target started (7/11, GCVS CY Lyr)
02:24:36       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
02:26:48       Focusing Completed Foc1 AutoFocus Completed (Profile No 6)
02:31:06     Target Completed Target completed (7/11, GCVS CY Lyr)
02:31:11     Target Started (8/11) Target started (8/11, AT2026hur)
02:35:24       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
02:37:41       Focusing Completed Foc1 AutoFocus Completed (Profile No 7)
02:53:58     Target Completed Target completed (8/11, AT2026hur)
02:54:02     Target Started (9/11) Target started (9/11, AT2026iul (CV))
02:58:19       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
03:00:34       Focusing Completed Foc1 AutoFocus Completed (Profile No 8)
03:07:38     Target Completed Target completed (9/11, AT2026iul (CV))
03:07:42     Target Started (10/11) Target started (10/11, GCVS BL Lac)
03:11:11       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
03:12:17   Critical Cloud Alert Critical Cloud Alert (Obs.Manager will close the Dome)
03:12:19   HardSuspend Called Hard Suspend called due to Critical Conditions (cloud)
03:12:21       Focusing Aborted Foc1 Focusing Aborted
03:12:23     Target Aborted (10/11) Target aborted (10/11, GCVS BL Lac) due to cloud
03:12:25   Queue Paused Queue paused for Session Suspension
03:12:27 Session Suspending Session suspending
03:13:12   Dome Closed Dome closed (Closing time 50s, Zigbee 43s)
03:13:15 Session Suspended Session suspended
03:14:22     Target Cancelled Target cancelled (10/11, GCVS BL Lac) due to too few stars
03:36:22     Target Cancelled Target cancelled (11/11, AT2026juw (CV)) due to cloud
03:36:26   Queue Completed Job Queue completed
03:36:30 Session Closing Session closing
03:36:32   Dome Closed Dome already closed (closed at 03:13, closing time 50s, zigbee 43s)
03:36:51   Dome Parked Dome parked (parking time 10s), Az: 90.0 deg
03:37:37   Telescope Parked Telescope parked (parking time 40s total)
03:38:01   Telescope State Handbox reads 'Scope parked Turn scope off.'
03:39:10   Telescope Switched Off Telescope Power has been switched off via UPB Switch.
03:40:37   Services Stopped Night Services stopped
03:40:40 Session Finishing Session Finishing started (Create Fits Summary, Transfer Files)
03:41:02     Dome (Find Park) Find Park started (Search Az 88.0 to 92.0°, Step 0.2°, Narrow)
03:41:45     Dome Find Park found (Best Park Az 90.2°)
03:41:51     Dome Dome has been synced at park position (Az 90.0°, Adjustment: -0.2°)
03:41:53   Dome Parked Dome parked
03:44:55   Dome Charging Dome is parked and well charged (97%, 15.0v)
03:44:57 Session Finished Session Finished
 
Session Alerts & Alarms
Time     Type       Name Detail
03:44:55 Yellow Alert Dome Charging Dome is parked and well charged (97%, 15.0v)
 

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