David's Astronomy Pages
Notes - Session 1306 (2025-03-28)

 
Bullet Session Aims & Highlights
 - Observing Result
 - Night Summary Plot
 - Session Event Log
Bullet Operational Issues
  - Critical Issues (0),  Major Issues (1),  Minor Issues (5),  Small Defects (2),  Continuous Improvement (3)
Bullet Images from 2025-03-28 >>         
   
Bullet Current/Latest Session >>
   

Session Aims & Highlights (2025-03-23)

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)
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Actual Weather vs Pre-Session Weather Forecast
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Session Event Log
Time     Event Detail
20:34:33 Session Monitoring AutoStart monitoring for Live Session opportunity between 20:34 & 03:37
20:34:35 Session AutoStarting Session autostarting (20:34)
20:34:58   CCDSoft Restarting CCDSoft being restarted (to set AutoSave No.)
20:35:26   Camera1 Connected SBIG Camera connected (Set point -20°C)
20:35:29 Session Created Session Created (Live, 2025-03-28 S01306, ImageSaveNum: 1306001)
20:35:34   Scope Switched On Telescope Power has been switched on via UPB Powerbox.
20:37:17   Services Started Observatory Services started
20:37:25 Observatory (Auto) Observatory placed in Fully-Automated Mode
20:37:28 Session Pending Session pending (2025-03-28)
20:37:30 Session Initiating Session initiating (2025-03-28)
20:37:37   Camera1 Connected SBIG Camera connected (Set point -20°C)
20:37:44   Plan Requested Observing Plan requested from AstroPlan (1.43)
20:38:21   Plan Loaded Observing Plan loaded to queue (Plan ID: 1090)
20:39:00   Telescope Connected Telescope connected (TheSky6)
20:39:25 Session Equilibration Session ready to Open Dome
20:40:10   Dome Opened Dome opened (Opening time 45s, Zigbee 41s)
20:40:45 Session Running Session running
20:40:48   Queue Started Observing Queue started (24 targets selected)
20:40:52     Target Started (NrZen) Target started (Focus Field 10, HIP 49253)
20:41:07       Dome Unparked Dome unparked
20:43:26       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
20:46:06       Focusing Completed Foc1 AutoFocus Completed (Profile No 1, wide)
20:48:30       Focusing Completed Foc1 AutoFocus Completed (Profile No 1)
20:48:34       Focusing Started-Foc2 Foc2 Focusing Started (Secondary Scope, using ShCap)
20:50:46       Focusing Completed Foc2 AutoFocus Completed (Profile No 2, wide)
20:52:39       Focusing Completed Foc2 AutoFocus Completed (Profile No 2)
20:52:58     Target Completed (NrZen) Target completed (Focus Field 10, HIP 49253)
20:54:12     Target Started (1/24) Target started (1/24, GCVS DX Cnc)
20:58:02       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
21:03:58     Target Completed Target completed (1/24, GCVS DX Cnc)
21:05:24     Target Started (2/24) Target started (2/24, ESO 565-G19 w/SN2025efc)
21:11:36       Focusing Skipped Foc1 focusing skipped - unable to find a star (TCF-S)
21:18:14   Critical RainThreat Alert Critical Rain Threat Alert (Obs.Manager will close the Dome)
21:18:16   HardSuspend Called Hard Suspend called due to Critical Conditions (threat of rain)
21:18:21     Target Aborted (2/24) Target aborted (2/24, ESO 565-G19 w/SN2025efc) due to threat of rain
21:18:23   Queue Paused Queue paused for Session Suspension
21:18:25 Session Suspending Session suspending
21:19:15   Dome Closed Dome closed (Closing time 50s, Zigbee 43s)
21:19:16 Session Suspended Session suspended
21:21:19 Session Resuming Session resuming
21:22:04   Dome Opened Dome opened (Opening time 45s, Zigbee 41s)
21:22:07 Session Running Session running
21:22:10   Queue Resumed Observing Queue resumed
21:22:12     Target Started (2/24) Target started (2/24, ESO 565-G19 w/SN2025efc)
21:29:46       SoftSuspend Called Soft Suspend called due to Deteriorating Conditions (too few stars)
21:29:55       SoftSuspend Cancelled Soft Suspend is cancelled due to improved conditions
21:32:25     Target Completed Target partially completed (2/24, ESO 565-G19 w/SN2025efc)
21:32:29     Target Started (3/24) Target started (3/24, NGC 2986 w/SN2025gj)
21:33:16       SoftSuspend Called Soft Suspend called due to Deteriorating Conditions (too few stars)
21:34:31       SoftSuspend Cancelled Soft Suspend is cancelled due to improved conditions
21:37:11       SoftSuspend Called Soft Suspend called due to Deteriorating Conditions (too few stars)
21:39:02   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
21:39:04   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
21:39:06     Target Aborted (3/24) Target aborted (3/24, NGC 2986 w/SN2025gj) due to rain
21:39:08   Queue Paused Queue paused for Session Suspension
21:39:12 Session Suspending Session suspending
21:40:01   Dome Closed Dome closed (Closing time 50s, Zigbee 43s)
21:40:04 Session Suspended Session suspended
21:47:00     Target Cancelled Target cancelled (3/24, NGC 2986 w/SN2025gj) due to threat of rain
21:49:42 Session Resuming Session resuming
21:50:27   Dome Opened Dome opened (Opening time 45s, Zigbee 41s)
21:50:30 Session Running Session running
21:50:33   Queue Resumed Observing Queue resumed
21:50:35     Target Started (4/24) Target started (4/24, AT2025lr)
21:54:59       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
21:57:39       Focusing Completed Foc1 AutoFocus Completed (Profile No 3)
22:14:16     Target Completed Target completed (4/24, AT2025lr)
22:14:20     Target Started (5/24) Target started (5/24, M86)
22:17:40   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
22:17:42   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
22:17:44     Target Aborted (5/24) Target aborted (5/24, M86) due to rain
22:17:46   Queue Paused Queue paused for Session Suspension
22:17:48 Session Suspending Session suspending
22:18:35   Dome Closed Dome closed (Closing time 49s, Zigbee 43s)
22:18:38 Session Suspended Session suspended
22:31:40     Target Cancelled Target cancelled (5/24, M86) due to too few stars
22:31:42 Session Resuming Session resuming
22:32:27   Dome Opened Dome opened (Opening time 45s, Zigbee 41s)
22:32:30 Session Running Session running
22:32:32   Queue Resumed Observing Queue resumed
22:32:35     Target Started (6/24) Target started (6/24, AT2025euu)
22:38:25       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
22:39:19       Focusing Failed Foc1 focusing failed - star lost
22:55:52     Target Completed Target completed (6/24, AT2025euu)
22:56:44     Target Started (7/24) Target started (7/24, LEDA 2155454 w/SN2025erh)
23:00:50       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
23:03:47       Focusing Completed Foc1 AutoFocus Completed (Profile No 5)
23:14:56       SoftSuspend Called Soft Suspend called due to Deteriorating Conditions (reducing clarity)
23:20:03     Target Completed Target completed (7/24, LEDA 2155454 w/SN2025erh)
23:20:05   Queue Paused Queue paused for Session Suspension
23:20:07 Session Suspending Session suspending
23:20:57   Dome Closed Dome closed (Closing time 50s, Zigbee 44s)
23:20:58 Session Suspended Session suspended
23:38:20     Target Cancelled Target cancelled (8/24, UGC 5695 w/SN2025cfc) due to cloud
00:00:40     Target Cancelled Target cancelled (9/24, NGC 3277 w/SN2025coe) due to cloud
00:05:27 Session Resuming Session resuming
00:06:11   Dome Opened Dome opened (Opening time 45s, Zigbee 41s)
00:06:15 Session Running Session running
00:06:17   Queue Resumed Observing Queue resumed
00:06:19     Target Started (10/24) Target started (10/24, M99)
00:10:04       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
00:27:08     Target Completed Target completed (10/24, M99)
00:27:12     Target Started (11/24) Target started (11/24, UGC 8239 w/SN2025N)
00:30:32       Focusing Skipped Foc1 focusing skipped - unable to find a star (TCF-S)
00:46:41     Target Completed Target completed (11/24, UGC 8239 w/SN2025N)
00:48:25     Target Started (12/24) Target started (12/24, NGC 5957 w/SN2025fvw)
00:51:58       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
00:54:52       Focusing Completed Foc1 AutoFocus Completed (Profile No 6)
01:11:30     Target Completed Target completed (12/24, NGC 5957 w/SN2025fvw)
01:11:34     Target Started (13/24) Target started (13/24, T CrB)
01:14:52       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
01:17:28       Focusing Completed Foc1 AutoFocus Completed (Profile No 7)
01:22:53     Target Completed Target completed (13/24, T CrB)
01:22:57     Target Started (14/24) Target started (14/24, 29P/Schwassmann-Wachmann)
01:27:06       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
01:43:40     Target Completed Target completed (14/24, 29P/Schwassmann-Wachmann)
01:43:44     Target Started (15/24) Target started (15/24, AT2025lc (CV))
01:47:37       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
01:50:13       Focusing Completed Foc1 AutoFocus Completed (Profile No 8)
01:56:30     Target Completed Target completed (15/24, AT2025lc (CV))
01:56:34     Target Started (16/24) Target started (16/24, AT2025md (CV))
01:59:35       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
02:02:21       Focusing Completed Foc1 AutoFocus Completed (Profile No 9)
02:09:51     Target Completed Target completed (16/24, AT2025md (CV))
02:09:56     Target Started (17/24) Target started (17/24, 61 Cyg)
02:13:17       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
02:15:05     Target Completed Target completed (17/24, 61 Cyg)
02:15:09     Target Started (18/24) Target started (18/24, AT2025la)
02:19:09       Focusing Skipped Foc1 focusing skipped - star is lost (TCF-S)
02:35:12     Target Completed Target completed (18/24, AT2025la)
02:37:11     Target Started (19/24) Target started (19/24, GCVS BL Lac)
02:41:03       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
02:43:45       Focusing Completed Foc1 AutoFocus Completed (Profile No 10)
02:48:07     Target Completed Target completed (19/24, GCVS BL Lac)
02:48:11     Target Started (20/24) Target started (20/24, M31 w/AT2025etj)
02:52:25       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
03:09:30     Target Completed Target completed (20/24, M31 w/AT2025etj)
03:09:49     Target Started (21/24) Target started (21/24, AT2025esy)
03:13:47       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
03:27:04   SBIG Camera Take Image failed (Command timed-out)
03:27:06   CCDSoft Restarting CCDSoft being restarted (attempt to fix locked thread)
03:27:13   SBIG Camera Reset SBIG Camera being power-cycled
03:28:08   Camera1 Connected SBIG Camera connected (Set point -25°C)
03:28:11   SBIG Camera Take Image command accepted (bSbigDriverException flag is reset)
03:31:25     Target Completed Target completed (21/24, AT2025esy)
03:32:09     Target Started (22/24) Target started (22/24, HIP 87937)
03:47:58     Target Completed Target completed (22/24, HIP 87937)
03:48:02     Target Started (23/24) Target started (23/24, C/2023 A3 (Tsuchinshan-ATLAS))
03:58:03     Target Completed Target partially completed (23/24, C/2023 A3 (Tsuchinshan-ATLAS))
03:58:07     Target Started (24/24) Target started (24/24, AT2025esx)
04:19:27     Target Completed Target completed (24/24, AT2025esx)
04:19:29   Queue Completed Job Queue completed
04:19:32 Session Closing Session closing
04:20:28   Dome Closed Dome closed (Closing time 50s, Zigbee 44s)
04:21:11   Dome Parked Dome parked (parking time 35s), Az: 90.0 deg
04:21:49   Telescope Parked Telescope parked (parking time 30s total)
04:22:13   Telescope State Handbox reads 'Scope parked Turn scope off.'
04:22:35   Telescope Switched Off Telescope Power has been switched off via UPB Switch.
04:24:00   Services Stopped Night Services stopped
04:24:02 Session Finishing Session Finishing started (Create Fits Summary, Transfer Files)
04:24:35     Dome (Find Park) Find Park started (Search Az 88.0 to 92.0°, Step 0.2°, Narrow)
04:25:20     Dome Find Park found (Best Park Az 90.4°)
04:25:26     Dome Dome has been synced at park position (Az 90.0°, Adjustment: -0.4°)
04:25:28   Dome Parked Dome parked
04:27:18   Dome Charging Dome is parked and re-charging Ok (26mA)
04:27:20 Session Finished Session Finished
 
Session Alerts & Alarms
Time     Type       Name Detail
21:39:26 Red Alarm Dome Unsafe CloudSensor detects Rain, but Shutter Sensor is open
21:39:57 Green Clear Dome Safe Shutter Sensor indicates that Dome is now closed
03:27:04 Red Alert SBIG Camera Alert Take Image failed (Command timed-out)
03:28:11 Green Clear SBIG Camera Take Image command accepted (bSbigDriverException flag is reset)
04:27:18 Green Clear Dome Charging Dome is parked and re-charging Ok (26mA)
 

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Operational Issues (2025-03-28, S1306)

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Critical Issues

Major Issues

Minor Issues

Small Defects

Continuous Improvement

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Fig 1.  Rain Event at 21:39

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Fig 2. AllSky Image at 21:38:54 showing passing cloud associated with rain event at 21:39.

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Fig 3. AllSky Image at 21:19:39 showing passing cloud / rain drops associated with rain event at 21:19

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Fig 4. AllSky Image at 22:17:20 showing passing cloud /rain drops associated with rain event at 22:17.

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