David's Astronomy Pages
Notes - Session 881 (2021-04-03)

 
Bullet Session Aims & Highlights
 - Observing Result
 - Night Summary Plot
 - Session Event Log
 
Bullet Operational Issues
  - Critical Issues (0),  Major Issues (0),  Minor Issues (2),  Continuous Improvement (1)
Bullet Images from 2021-04-03 >>     [ Local Files >> ]

Session Aims & Highlights (2021-04-03)

Main aims

  1. AstroMain  Test out v 3.38.13. Check that version is stable and doesn't crash like 3.38.12 did in last session (S880)
  2. Targets. Acquire images of a selection of variable stars, nearby stars, comets & deep sky targets as allowed by conditions

Equipment & Software

Highlights

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
Dec Notes :
Run 11 (black) failed due to cloud/lost star
Run 14 (black) failed due to cloud/lost star in first frame (other frames ok)
Run 1 (red) impacted by settling period being too short (focusing cancelled, frame 1 started before selection of Dec Guide Mode)
Run 13 (red) impacted by wrong Dec Guide Mode (should have used South Mode, instead of North Mode)
Run 2 (orange) impacted by periods of ineffective Dec guiding
Run 17 (orange) impacted by cloud/lost star during final frame
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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
20:25:52 Session Monitoring AutoStart monitoring for Live Session opportunity starting between 20:51 & 04:28
20:51:57   AutoStart Waiting AutoStart waiting till earliest start time at 20:51
20:51:58   AutoStart Delayed Session delayed due to cloud
21:03:14 Session AutoStarting Session autostarting (21:03)
21:03:44 Session Created Live Session Created (2021-04-03 S00881, ImageSaveNum: 881001)
21:03:46   Scope Switched On Telescope Power has been switched on via UPB Powerbox.
21:05:44   Services Started Observatory Services started
21:05:52 Observatory (Auto) Observatory placed in Fully-Automated Mode
21:05:54 Session Pending Session pending (2021-04-03)
21:05:56 Session Initiating Session initiating (2021-04-03)
21:05:58   Plan Requested Observing Plan requested from AstroPlan (1.21.6)
21:06:37   Plan Loaded Observing Plan loaded to queue (, Plan ID: 619)
21:06:51   Camera1 Connected SBIG Camera Connected (set point -20°C)
21:06:57   Telescope Connected Telescope Connected (TheSky6)
21:07:07 Session Equilibration Session ready for dome & camera equilibration
21:08:39   Dome Opened Dome opened (opening time 45s)
21:08:55   Equilibration Started Dome Equilibration started
21:13:55   Equilibration Skipped Dome Equilibration skipped by user
21:13:57 Session Running Session running
21:13:59   Queue Started Observing Queue started (26 targets selected)
21:15:30       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
21:19:03       Focusing Completed Foc1 AutoFocus Completed (Profile No 1, wide)
21:21:02       Focusing Completed Foc1 AutoFocus Completed (Profile No 1)
21:21:08       Focusing Started-Foc2 Foc2 Focusing Started (Secondary Scope, using ShCap)
21:23:28       Focusing Completed Foc2 AutoFocus Completed (Profile No 2, wide)
21:25:21       Focusing Completed Foc2 AutoFocus Completed (Profile No 2)
21:25:38       Focusing Checked Foc2 Focusing Check Succeeded
21:25:54     Target Started (1/26) Target started (1/26, WDS GRB 34)
21:31:37       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
21:33:27       Focusing Failed Foc1 focusing failed - failed QC check (Ambiguous)
21:35:41     Target Completed Target completed (1/26, WDS GRB 34)
21:35:43     Target Started (2/26) Target started (2/26, UGC 3502 w/SN2021cwc)
21:40:44       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
21:42:56       Focusing Completed Foc1 AutoFocus Completed (Profile No 4)
21:58:38     Target Completed Target completed (2/26, UGC 3502 w/SN2021cwc)
21:58:40     Target Started (3/26) Target started (3/26, NGC 3310 w/SN2021gmj)
22:03:31       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
22:20:43     Target Completed Target completed (3/26, NGC 3310 w/SN2021gmj)
22:20:46     Target Started (4/26) Target started (4/26, NGC 4165 w/SN2021gno)
22:24:29       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
22:26:37       Focusing Completed Foc1 AutoFocus Completed (Profile No 5)
22:42:33     Target Completed Target completed (4/26, NGC 4165 w/SN2021gno)
22:42:35     Target Started (5/26) Target started (5/26, NGC 4227 w/SN2021biz)
22:46:02       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
22:48:04       Focusing Completed Foc1 AutoFocus Completed (Profile No 6)
23:03:36     Target Completed Target completed (5/26, NGC 4227 w/SN2021biz)
23:03:38     Target Started (6/26) Target started (6/26, UGCA 284)
23:06:24       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
23:08:14       Focusing Completed Foc1 AutoFocus Completed (Profile No 7)
23:23:48     Target Completed Target completed (6/26, UGCA 284)
23:24:29     Target Started (7/26) Target started (7/26, Nova Per 2020 (CV))
23:27:27 Critical Humidity Alert Critical Humidity Alert (Obs.Manager will close the Shutter)
23:27:29   HardSuspend Called Hard Suspend is called due to Critical Conditions (high humidity)
23:27:41     Target Aborted (7/26) Target aborted (7/26, Nova Per 2020 (CV)) due to high humidity
23:27:43   Queue Paused Queue paused For Session Suspension
23:27:45 Session Suspended Session suspended
23:28:32   Dome Closed Dome closed (closing time 49s)
23:37:51     Target Cancelled Target cancelled (7/26, Nova Per 2020 (CV)) due to high humidity
23:38:43 Session Resuming Session resuming
23:39:28   Dome Opened Dome opened (opening time 45s)
23:39:30 Session Running Session running
23:39:32   Queue Resumed Observing Queue resumed
23:39:34     Target Started (8/26) Target started (8/26, UGC 7774)
23:47:06       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
00:04:45     Target Completed Target completed (8/26, UGC 7774)
00:04:47     Target Started (9/26) Target started (9/26, C/2020 T2 (Palomar))
00:07:46       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
00:09:49       Focusing Completed Foc1 AutoFocus Completed (Profile No 8)
00:24:01     Target Completed Target completed (9/26, C/2020 T2 (Palomar))
00:24:03     Target Started (10/26) Target started (10/26, NGC 3389 w/AT2021hkw)
00:28:00       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
00:45:15     Target Completed Target completed (10/26, NGC 3389 w/AT2021hkw)
00:45:17     Target Started (11/26) Target started (11/26, UGCA 252)
00:50:14       Focusing Skipped Foc1 focusing skipped - star is too dim (TCF-S)
01:04:41   SoftSuspend Called Soft Suspend is called due to Deteriorating Conditions (too few stars)
01:07:57     Target Completed Target completed (11/26, UGCA 252)
01:07:59   Queue Paused Queue paused For Session Suspension
01:08:01 Session Suspended Session suspended
01:08:51   Dome Closed Dome closed (closing time 50s)
01:15:42 Session Resuming Session resuming
01:16:27   Dome Opened Dome opened (opening time 45s)
01:16:29 Session Running Session running
01:16:31   Queue Resumed Observing Queue resumed
01:16:33     Target Started (12/26) Target started (12/26, IC 3322A w/SN2021hiz)
01:29:45     Target Completed Target partially completed (12/26, IC 3322A w/SN2021hiz)
01:29:47     Target Started (13/26) Target started (13/26, NGC 5018 w/SN2021fxy)
01:33:06       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
01:35:19       Focusing Completed Foc1 AutoFocus Completed (Profile No 9)
01:49:30   SoftSuspend Called Soft Suspend is called due to Deteriorating Conditions (too few stars)
01:51:10     Target Completed Target completed (13/26, NGC 5018 w/SN2021fxy)
01:51:12   Queue Paused Queue paused For Session Suspension
01:51:14 Session Suspended Session suspended
01:52:00   Dome Closed Dome closed (closing time 50s)
02:07:30     Target Cancelled Target cancelled (14/26, IC 992 w/SN2021dwg) due to other condition
02:07:33 Session Resuming Session resuming
02:08:16   Dome Opened Dome opened (opening time 45s)
02:08:18 Session Running Session running
02:08:20   Queue Resumed Observing Queue resumed
02:10:30     Target Started (15/26) Target started (15/26, IC 863 w/SN2021foa)
02:16:57       Focusing Skipped Foc1 focusing skipped - unable to find a star (TCF-S)
02:34:18     Target Completed Target completed (15/26, IC 863 w/SN2021foa)
02:34:20     Target Started (16/26) Target started (16/26, 61 Cyg)
02:38:04       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
02:39:50       Focusing Completed Foc1 AutoFocus Completed (Profile No 10)
02:41:06     Target Completed Target completed (16/26, 61 Cyg)
02:41:08     Target Started (17/26) Target started (17/26, GCVS BL Lac)
02:45:46       Focusing Skipped Foc1 focusing skipped - unable to find a star (TCF-S)
02:50:32     Target Completed Target completed (17/26, GCVS BL Lac)
02:50:34     Target Started (18/26) Target started (18/26, GCVS SS Cyg)
02:50:35   SoftSuspend Called Soft Suspend is called due to Deteriorating Conditions (too few stars)
02:55:19       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
02:57:21       Focusing Completed Foc1 AutoFocus Completed (Profile No 11)
03:00:54     Target Completed Target completed (18/26, GCVS SS Cyg)
03:00:56   Queue Paused Queue paused For Session Suspension
03:00:59 Session Suspended Session suspended
03:01:46   Dome Closed Dome closed (closing time 50s)
03:04:40     Target Cancelled Target cancelled (18/26, GCVS SS Cyg) due to cloud
03:23:47     Target Cancelled Target cancelled (19/26, AT2021hkn) due to cloud
03:34:57     Target Cancelled Target cancelled (20/26, GCVS HH And) due to cloud
04:00:28     Target Cancelled Target cancelled (21/26, UGC 10310) due to cloud
04:11:18     Target Cancelled Target cancelled (22/26, HIP 87937) due to cloud
04:19:46     Target Cancelled Target cancelled (23/26, GCVS R CrB) due to cloud
04:28:37     Target Cancelled Target cancelled (24/26, GCVS SS Her) due to cloud
04:47:09     Target Cancelled Target cancelled (25/26, 7P/Pons-Winnecke) due to cloud
05:07:12     Target Cancelled Target cancelled (26/26, GCVS CY Lyr) due to cloud
05:07:17   Queue Completed Job Queue completed
05:07:23 Session Closing Session closing
05:07:28   Dome Closed Dome already closed (closed at 03:01, closing time 50s)
05:07:56   Dome Parked Dome parked (parking time 20s), Az: 90.0 deg
05:08:45   Telescope Parked Telescope parked (parking time 44s)
05:09:15   Telescope Switched Off Telescope Power has been switched off via UPB Switch.
05:10:05   Services Stopped Night Services stopped
05:10:07 Session Housekeeping Housekeeping Started (Cleanup FITS, Create Fits Summary, Transfer Files)
05:10:23 Session Finished Session Finished
 
Session Alerts
Time     Alert Detail
21:45:57 Dome Dome has been stationary for more than 10 mins
21:58:43 Dome Dome Movements have begun again (outage 22.8 mins)
22:00:55 Dome Discrepency Difference between Telescope Az and Dome Az is > 8 deg (NGC 3310)

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Operational Issues (2021-04-03 S881)

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Critical Issues

Major Issues

Minor Issues

Continuous Improvement

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