David's Astronomy Pages
Notes - Session 1300 (2025-03-06)

 
Bullet Session Aims & Highlights
 - Observing Result
 - Night Summary Plot
 - Session Event Log
Bullet Operational Issues
  - Critical Issues (0),  Major Issues (2),  Minor Issues (2),  Small Defects (4),  Continuous Improvement (1)
Bullet Images from 2025-03-06 >>         
   

Session Aims & Highlights (2025-03-06)

Main aims

  1. Targets.  Acquire images of a selection of variable stars, nearby stars, comets & deep sky targets as allowed by sky conditions.
  2. CCDMonitor. Check functioning of CCDMonitor following major problem during previous nights session attempt (S1298A, 2025-01-20)

 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
18:58:10 Session Monitoring AutoStart monitoring for Live Session opportunity between 18:58 & 04:42
18:58:12   AutoStart Delayed Session delayed due to rain
18:59:52 Session AutoStarting Session autostarting (18:59)
19:00:13   CCDSoft Restarting CCDSoft being restarted (to set AutoSave No.)
19:00:41   Camera1 Connected SBIG Camera connected (Set point -25°C)
19:00:43 Session Created Session Created (Live, 2025-03-06 S01300, ImageSaveNum: 1300001)
19:00:48   Scope Switched On Telescope Power has been switched on via UPB Powerbox.
19:02:38   Services Started Observatory Services started
19:02:47 Observatory (Auto) Observatory placed in Fully-Automated Mode
19:02:49   AutoStart Delayed Session delayed due to rain
19:02:51 Session Pending Session pending (2025-03-06)
19:02:53 Session Initiating Session initiating (2025-03-06)
19:02:59   Camera1 Connected SBIG Camera connected (Set point -15°C)
19:03:06   Plan Requested Observing Plan requested from AstroPlan (1.43)
19:04:08   Plan Loaded Observing Plan loaded to queue (Plan ID: 1084)
19:04:48   Telescope Connected Telescope connected (TheSky6)
19:05:12 Session Equilibration Session ready to Open Dome
19:06:33   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
19:06:38   Wait On Weather Waiting for acceptable conditions
19:06:40 Session Suspending Session suspending
19:07:08   Dome Closed Dome closed (Closing time 35s, Zigbee 32s)
19:07:09 Session Suspended Session suspended
19:09:10   Queue Started Observing Queue started (35 targets selected)
19:09:38 Session Resuming Session resuming
19:10:23     Target Started (NrZen) Target started (Focus Field 4, HIP 18637)
19:10:25   Dome Opened Dome opened (Opening time 45s, Zigbee 40s)
19:10:27 Session Running Session running
19:10:29   Queue Resumed Observing Queue resumed
19:10:38       Dome Unparked Dome unparked
19:12:49   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
19:12:51   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
19:12:59 Session Suspending Session suspending
19:13:17   Queue Paused Observing Queue pausing for Session Suspension
19:13:49   Dome Closed Dome closed (Closing time 50s, Zigbee 43s)
19:13:51 Session Suspended Session suspended
19:16:59 Session Resuming Session resuming
19:17:44     Target Started (NrZen) Target started (Focus Field 8, HIP 39357)
19:17:46   Dome Opened Dome opened (Opening time 46s, Zigbee 40s)
19:17:48 Session Running Session running
19:17:50   Queue Resumed Observing Queue resumed
19:18:00   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
19:18:02   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
19:18:11 Session Suspending Session suspending
19:19:00   Dome Closed Dome closed (Closing time 49s, Zigbee 43s)
19:19:02 Session Suspended Session suspended
19:19:09   Queue Paused Observing Queue pausing for Session Suspension
19:21:05 Session Resuming Session resuming
19:21:49     Target Started (NrZen) Target started (Focus Field 8, HIP 39357)
19:21:51   Dome Opened Dome opened (Opening time 45s, Zigbee 40s)
19:21:53 Session Running Session running
19:21:55   Queue Resumed Observing Queue resumed
19:23:09   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
19:23:12   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
19:23:20 Session Suspending Session suspending
19:23:23   Queue Paused Observing Queue pausing for Session Suspension
19:24:09   Dome Closed Dome closed (Closing time 50s, Zigbee 43s)
19:24:11 Session Suspended Session suspended
19:26:15 Session Resuming Session resuming
19:26:59     Target Started (NrZen) Target started (Focus Field 8, HIP 39357)
19:27:02   Dome Opened Dome opened (Opening time 45s, Zigbee 40s)
19:27:04 Session Running Session running
19:27:06   Queue Resumed Observing Queue resumed
19:27:20   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
19:27:22   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
19:27:30 Session Suspending Session suspending
19:27:33   Queue Paused Observing Queue pausing for Session Suspension
19:28:16   Dome Closed Dome closed (Closing time 45s, Zigbee 43s)
19:28:17 Session Suspended Session suspended
19:30:20 Session Resuming Session resuming
19:31:05     Target Started (NrZen) Target started (Focus Field 8, HIP 39357)
19:31:08   Dome Opened Dome opened (Opening time 45s, Zigbee 40s)
19:31:10 Session Running Session running
19:31:12   Queue Resumed Observing Queue resumed
19:32:01   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
19:32:03   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
19:32:11 Session Suspending Session suspending
19:32:23   Queue Paused Observing Queue pausing for Session Suspension
19:32:56   Dome Closed Dome closed (Closing time 45s, Zigbee 43s)
19:32:57 Session Suspended Session suspended
19:35:11 Session Resuming Session resuming
19:35:56     Target Started (NrZen) Target started (Focus Field 8, HIP 39357)
19:35:58   Dome Opened Dome opened (Opening time 45s, Zigbee 40s)
19:36:00 Session Running Session running
19:36:02   Queue Resumed Observing Queue resumed
19:36:41   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
19:36:43   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
19:36:45     Target Aborted (1/35) Target aborted (1/35, AT2024wqf) due to rain
19:36:47   Queue Paused Queue paused for Session Suspension
19:36:49 Session Suspending Session suspending
19:37:36   Dome Closed Dome closed (Closing time 50s, Zigbee 43s)
19:37:38 Session Suspended Session suspended
19:38:50     Target Cancelled Target cancelled (1/35, AT2024wqf) due to wait on timer
19:39:42 Session Resuming Session resuming
19:40:27   Dome Opened Dome opened (Opening time 45s, Zigbee 40s)
19:40:30 Session Running Session running
19:40:32   Queue Resumed Observing Queue resumed
19:40:54     Target Started (NrZen) Target started (Focus Field 8, HIP 39357)
19:43:21       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
19:44:02   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
19:44:04   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
19:44:06       Focusing Aborted Foc1 Focusing Aborted due to HardSuspend
19:44:08     Target Aborted (NrZen) Target aborted (Focus Field 8, HIP 39357) due to rain
19:44:10     Target Aborted (2/35) Target aborted (2/35, AT2024accj) due to rain
19:44:12   Queue Paused Queue paused for Session Suspension
19:44:14 Session Suspending Session suspending
19:44:57   Dome Closed Dome closed (Closing time 50s, Zigbee 43s)
19:44:59 Session Suspended Session suspended
19:47:03 Session Resuming Session resuming
19:47:47   Dome Opened Dome opened (Opening time 45s, Zigbee 40s)
19:47:49 Session Running Session running
19:47:51   Queue Resumed Observing Queue resumed
19:47:54     Target Started (2/35) Target started (2/35, AT2024accj)
19:49:13   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
19:49:15   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
19:49:17     Target Aborted (2/35) Target aborted (2/35, AT2024accj) due to rain
19:49:19   Queue Paused Queue paused for Session Suspension
19:49:21 Session Suspending Session suspending
19:50:03   Dome Closed Dome closed (Closing time 45s, Zigbee 43s)
19:50:04 Session Suspended Session suspended
19:52:08 Session Resuming Session resuming
19:52:53   Dome Opened Dome opened (Opening time 45s, Zigbee 40s)
19:52:55 Session Running Session running
19:52:57   Queue Resumed Observing Queue resumed
19:52:59     Target Started (2/35) Target started (2/35, AT2024accj)
19:54:41       Focusing Started-Foc2 Foc2 Focusing Started (Secondary Scope, using ShCap)
19:54:53   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
19:54:55   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
19:55:04 Session Suspending Session suspending
19:55:24       Focusing Aborted Foc2 Focusing Aborted
19:55:54   Dome Closed Dome closed (Closing time 50s, Zigbee 43s)
19:55:55 Session Suspended Session suspended
19:55:58     Target Aborted (2/35) Target aborted (2/35, AT2024accj) due to rain
19:56:00   Queue Paused Queue paused for Session Suspension
19:57:59 Session Resuming Session resuming
19:58:44   Dome Opened Dome opened (Opening time 45s, Zigbee 40s)
19:58:46     Target Started (NrZen) Target started (Focus Field 9, HIP 44139)
19:58:48 Session Running Session running
19:58:50   Queue Resumed Observing Queue resumed
20:01:42       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
20:02:14   Critical Rain Alert Critical Rain Alert (Obs.Manager will close the Dome)
20:02:16   HardSuspend Called Hard Suspend called due to Critical Conditions (rain)
20:02:18       Focusing Aborted Foc1 Focusing Aborted due to HardSuspend
20:02:20     Target Aborted (NrZen) Target aborted (Focus Field 9, HIP 44139) due to rain
20:02:22     Target Missed (2/35) Target's time slot was missed (2/35, AT2024accj)
20:02:24   Queue Paused Observing Queue pausing for Session Suspension
20:02:26 Session Suspending Session suspending
20:03:09   Dome Closed Dome closed (Closing time 50s, Zigbee 43s)
20:03:11 Session Suspended Session suspended
20:05:15 Session Resuming Session resuming
20:06:00   Dome Opened Dome opened (Opening time 45s, Zigbee 40s)
20:06:01 Session Running Session running
20:06:03   Queue Resumed Observing Queue resumed
20:06:05     Target Started (3/35) Target started (3/35, GCVS ER UMa)
20:09:08       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
20:13:18     Target Completed Target completed (3/35, GCVS ER UMa)
20:14:33     Target Started (4/35) Target started (4/35, AT2024fxd)
20:20:27       Focusing Skipped Foc1 focusing skipped - star is lost (TCF-S)
20:37:16     Target Completed Target completed (4/35, AT2024fxd)
20:37:20     Target Started (5/35) Target started (5/35, GCVS HH And)
20:40:09       SoftSuspend Called Soft Suspend called due to Deteriorating Conditions (too few stars)
20:40:49       SoftSuspend Cancelled Soft Suspend is cancelled due to improved conditions
20:42:00       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
20:44:43     Target Completed Target completed (5/35, GCVS HH And)
20:44:47     Target Started (6/35) Target started (6/35, AT2024aelh (CV))
20:48:08       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
20:50:52       Focusing Completed Foc1 AutoFocus Completed (Profile No 3, wide)
20:52:53       Focusing Completed Foc1 AutoFocus Completed (Profile No 3)
20:58:52     Target Completed Target completed (6/35, AT2024aelh (CV))
20:58:56     Target Started (7/35) Target started (7/35, GCVS GK Per)
21:01:28       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
21:03:28       Focusing Completed Foc1 AutoFocus Completed (Profile No 4)
21:07:58     Target Completed Target completed (7/35, GCVS GK Per)
21:08:02     Target Started (8/35) Target started (8/35, UGC 604 w/SN2024advj)
21:12:18       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
21:14:05       Focusing Completed Foc1 AutoFocus Completed (Profile No 5)
21:30:32     Target Completed Target completed (8/35, UGC 604 w/SN2024advj)
21:30:36     Target Started (9/35) Target started (9/35, AT2024aasb)
21:34:32       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
21:46:16       SoftSuspend Called Soft Suspend called due to Deteriorating Conditions (too few stars)
21:50:32     Target Completed Target completed (9/35, AT2024aasb)
21:50:34   Queue Paused Queue paused for Session Suspension
21:50:37 Session Suspending Session suspending
21:51:27   Dome Closed Dome closed (Closing time 50s, Zigbee 44s)
21:51:28 Session Suspended Session suspended
21:59:09     Target Cancelled Target cancelled (10/35, WDS GRB 34) due to cloud
22:12:34     Target Cancelled Target cancelled (11/35, C/2022 E2 (ATLAS)) due to cloud
22:33:24     Target Cancelled Target cancelled (12/35, IC 1231 w/SN2024aeds) due to cloud
22:55:44     Target Cancelled Target cancelled (13/35, UGCA 286) due to cloud
23:18:04     Target Cancelled Target cancelled (14/35, SN 2022mox) due to cloud
23:40:24     Target Cancelled Target cancelled (15/35, AT2024aeey) due to cloud
23:56:39     Target Cancelled Target cancelled (16/35, AT2023acib) due to cloud
00:09:58     Target Cancelled Target cancelled (17/35, AT2025md (CV)) due to cloud
00:30:18     Target Cancelled Target cancelled (18/35, UGC 8239 w/SN2025N) due to cloud
00:52:38     Target Cancelled Target cancelled (19/35, NGC 3521 w/SN2024aecx) due to cloud
01:14:38     Target Cancelled Target cancelled (20/35, NGC 4722 w/SN2024ablh) due to cloud
01:36:38     Target Cancelled Target cancelled (21/35, IC 1125 w/SN2024jz) due to cloud
01:59:22     Target Cancelled Target cancelled (22/35, 29P/Schwassmann-Wachmann) due to cloud
02:20:12     Target Cancelled Target cancelled (23/35, AT2025lr) due to cloud
02:42:32     Target Cancelled Target cancelled (24/35, AT2024aart) due to cloud
02:55:58     Target Cancelled Target cancelled (25/35, T CrB) due to cloud
03:15:48     Target Cancelled Target cancelled (26/35, AT2024xpy) due to cloud
03:30:08     Target Cancelled Target cancelled (27/35, AT2025oj (CV)) due to cloud
03:39:28     Target Cancelled Target cancelled (28/35, HIP 87937) due to cloud
03:51:50     Target Cancelled Target cancelled (29/35, C/2023 A3 (Tsuchinshan-ATLAS)) due to cloud
04:01:38     Target Cancelled Target cancelled (30/35, GCVS BL Lac) due to cloud
04:13:58     Target Cancelled Target cancelled (31/35, AT2025lc (CV)) due to cloud
04:34:18     Target Cancelled Target cancelled (32/35, AT2025la) due to cloud
04:48:38     Target Cancelled Target cancelled (33/35, Nova Vul 2024) due to cloud
05:00:58     Target Cancelled Target cancelled (34/35, AT2024wzq (CV)) due to cloud
05:21:16     Target Cancelled Target cancelled (35/35, GCVS CY Lyr) due to cloud
05:21:20   Queue Completed Job Queue completed
05:21:26 Session Closing Session closing
05:21:31   Dome Closed Dome already closed (closed at 21:51, closing time 50s, zigbee 44s)
05:22:45   Dome Parked Dome parked (parking time 65s), Az: 90.0 deg
05:23:38   Telescope Parked Telescope parked (parking time 45s total)
05:24:07   Telescope State Handbox reads 'Scope parked Turn scope off.'
05:24:29   Telescope Switched Off Telescope Power has been switched off via UPB Switch.
05:25:53   Services Stopped Night Services stopped
05:25:56 Session Finishing Session Finishing started (Create Fits Summary, Transfer Files)
05:26:08     Dome (Find Park) Find Park started (Search Az 88.0 to 92.0°, Step 0.2°, Narrow)
05:26:54     Dome Find Park found (Best Park Az 90.4°)
05:27:00     Dome Dome has been synced at park position (Az 90.0°, Adjustment: -0.4°)
05:27:02   Dome Parked Dome parked
05:28:51   Dome Charging Dome is parked and re-charging Ok (84mA)
05:28:53 Session Finished Session Finished
 
Session Alerts & Alarms
Time     Type       Name Detail
05:28:51 Green Clear Dome Charging Dome is parked and re-charging Ok (84mA)
 

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Operational Issues (2025-03-06, S1300)

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Critical Issues

Major Issues

Minor Issues

Small Defects

Continuous Improvement

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Fig 1.  RainSensor Values for 5d period, showing effect of earlier rain event on base line values during S1300 session
(It is noted that base line levels were slowing increasing during the 48 hours prior to rain event)

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Fig 2.  RainSensor Values for 5d period, showing effect of later rain event on subsequent base line values.

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Fig 3.  RainSensor Values for subsequent 5d period, showing base line values eventually dropping back to normal  (slightly negative) level

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Fig 4a.  Greenhouse Temperature plot for 2025-03-13 showing inappropriate near vertical line segment at c. 13:59 following outage in ObsEnv Monitoring

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Fig 4b. Graph following fix in AstroWeather 1.27.5.

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