David's Astronomy Pages Notes - Session 652 (2019-01-29)

Notes (S651)

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Notes (S653)

	Session Aims & Highlights
	- Observing Result  - Night Summary Plot  - Session Event Log
	Operational Issues
	- Critical Issues (0),  Major Issues (4),  Minor Issues (11),  Continuous Improvement (5)
	Autofocussing - FWHM & HFD Profiles
	Pegasus UPB - Replacement Humidity Sensor
	Images from 2019-01-29  >>

Session Aims & Highlights (2019-01-29)

Main aims

• Targets. Acquire images of a range of targets (comets, variable stars, nearby stars and deep sky objects) during a night of expected very good weather conditions
• Stability.  Test stability of observatory programs and systems.

Equipment & Software

•  12" LX200 and ST-10XME
•  80mm APO and ZWO ASI 178MC
•  CCDApp2, TheSky6, CCDSoft5, PHD2,  POTH Hub
•  Pegasus UPB & Motor Focus, TCF-S
• AstroMain 3.8.3, AstroPlan 1.6.2

Highlights

• Images.  Images from a number of targets were successfully acquired.
   (Quality of images were unfortunately mostly rather poor due to poor sky transparency caused by high level cloud)
• LX200 powered up remotely at start of session using Pegasus UPB (and later powered down by remote operation)
   (Power Supply issues unfortunately surfaced during the session which appear to be due to voltage losses in the relatively thin-wired power extension cable used to reach the UPB)
•   Improvements in creation of HFD lines from inner and outer focus.

Summary Plots & Logs

Observing Plan (2019-01-29, S652)

Observing Result (2019-01-29, S652)

Night Sky Summary Plot - 2019-01-29, S652 Top axis: Sky Brightness at Zenith (in ADU/s) Lefthand axis: Local Time (hh LT). Righthand axis: Sun Altitude (degs)

Session Event Log (2019-01-29, S652)

Time   Event Detail 17:31 Obs.Manager Started Obs.Manager started 17:31 Services Started Observatory Services started 17:31 Services Stopped Observatory Services stopped 17:32 Program Closed Program closed by User 17:34 Session Created Live Session Created (2019-01-29 S00652, ImageSaveNum: 652001) 17:35 Obs.Manager Started Obs.Manager started 17:35 Services Started Observatory Services started 17:36   Camera1 Connected SBIG Camera Connected (set point -30°C) 17:37   Telescope Connected Telescope Connected (TheSky6) 17:37 Observatory (Auto) Observatory placed in Fully-Automated Mode 17:37 Session Pending Session pending (2019-01-29) 17:37   Plan Requested Observing Plan requested from AstroPlan () 17:40   Plan Loaded Observing Plan loaded to queue (2019-01-29 V1 BEST PLAN, Plan ID: 257) 17:40   Camera1 Connected SBIG Camera Connected (set point -30°C) 17:40   Telescope Connected Telescope Connected (TheSky6) 17:49 Shutter Opened Shutter opened (opening time 45s) 17:49 Equilibration Started Dome Equilibration started 17:56 Equilibration Ended Dome Equilibration ended (7.3 mins total) 17:56   Queue Started Observing Queue started (32 targets selected) 17:56     Target Started (1/32) Target started (1/32, C/2015 O1 (PANSTARRS)) 18:16 Services Stopped Observatory Services stopped 18:19 Session Resumed Live Session Resumed (2019-01-29 S00652, ImageSaveNum: 652004) 18:20 Obs.Manager Started Obs.Manager started 18:20 Services Started Observatory Services started 18:20 Services Stopped Observatory Services stopped 18:20 Program Closed Program closed by User 18:22 Session Resumed Live Session Resumed (2019-01-29 S00652, ImageSaveNum: 652004) 18:23 Obs.Manager Started Obs.Manager started 18:23 Services Started Observatory Services started 18:24   Telescope Connected Telescope Connected (TheSky6) 18:25   Telescope Parked Telescope parked 18:28   Telescope Connected Telescope Connected (TheSky6) 18:29   Camera1 Connected SBIG Camera Connected (set point -30°C) 18:29 Observatory (Auto) Observatory placed in Fully-Automated Mode 18:29 Session Pending Session pending (2019-01-29) 18:29   Plan Loaded Observing Plan loaded to queue (2019-01-29 V1 BEST PLAN, Plan ID: 257) 18:30   Camera1 Connected SBIG Camera Connected (set point -30°C) 18:30   Telescope Connected Telescope Connected (TheSky6) 18:30 Equilibration Started Dome Equilibration started 18:30   Queue Started Observing Queue started (32 targets selected) 18:30     Target Missed (1/32) Target Missed (1/32, C/2015 O1 (PANSTARRS)) 18:37     Target Completed Target partially completed (4/32, GSC 1224:29) 18:41     Target Completed Target completed (5/32, GCVS FU Ori) 18:49     Target Completed Target completed (6/32, GCVS CN Ori) 18:56     Target Completed Target completed (7/32, GCVS Z And) 18:56     Target Started (8/32) Target started (8/32, GCVS RX And) 19:01     Target Completed Target completed (8/32, GCVS RX And) 19:03     Target Started (9/32) Target started (9/32, GCVS GK Per) 19:09     Target Completed Target completed (9/32, GCVS GK Per) 19:11     Target Started (10/32) Target started (10/32, 61 Cyg) 19:15     Target Completed Target completed (10/32, 61 Cyg) 19:18     Target Started (11/32) Target started (11/32, GCVS SS Cyg) 19:26     Target Completed Target completed (11/32, GCVS SS Cyg) 19:33     Target Started (12/32) Target started (12/32, GCVS EV Lac) 19:37     Target Completed Target completed (12/32, GCVS EV Lac) 19:41     Target Started (13/32) Target started (13/32, GCVS U And) 19:54     Target Completed Target completed (13/32, GCVS U And) 19:54     Target Started (14/32) Target started (14/32, GCVS DY Per) 20:00     Target Completed Target completed (14/32, GCVS DY Per) 20:04     Target Started (15/32) Target started (15/32, GCVS HH And) 20:08     Target Completed Target completed (15/32, GCVS HH And) 20:11     Target Started (16/32) Target started (16/32, UGC 118) 20:30     Target Completed Target completed (16/32, UGC 118) 20:36     Target Completed Target completed (17/33, GCVS BL Lac) 20:49     Target Completed Target completed (18/33, M77) 20:50     Target Started (19/33) Target started (19/33, GCVS RR Tau) 21:00     Target Completed Target completed (19/33, GCVS RR Tau) 21:00     Target Started (20/33) Target started (20/33, GCVS SU Tau) 21:07     Target Completed Target completed (20/33, GCVS SU Tau) 21:09     Target Started (21/33) Target started (21/33, GCVS NV Ori) 21:16     Target Completed Target completed (21/33, GCVS NV Ori) 21:17     Target Started (22/33) Target started (22/33, 38P/Stephan-Oterma) 21:24     Target Completed Target completed (22/33, 38P/Stephan-Oterma) 21:27     Target Started (23/33) Target started (23/33, GCVS ER UMa) 21:34     Target Completed Target completed (23/33, GCVS ER UMa) 21:37     Target Started (24/33) Target started (24/33, GCVS RZ LMi) 21:46     Target Completed Target completed (24/33, GCVS RZ LMi) 21:48     Target Started (25/33) Target started (25/33, GCVS U Gem) 21:53     Target Completed Target completed (25/33, GCVS U Gem) 21:57     Target Started (26/33) Target started (26/33, GCVS DX Cnc) 22:04     Target Completed Target completed (26/33, GCVS DX Cnc) 22:07     Target Started (27/33) Target started (27/33, GCVS SY Cnc) 22:12     Target Completed Target completed (27/33, GCVS SY Cnc) 22:16     Target Started (28/33) Target started (28/33, GCVS FO Ori) 22:23     Target Completed Target completed (28/33, GCVS FO Ori) 22:24     Target Started (29/33) Target started (29/33, GCVS U MON) 22:31     Target Completed Target completed (29/33, GCVS U MON) 22:32     Target Started (30/33) Target started (30/33, LAMOST-HVS1) 22:38     Target Completed Target completed (30/33, LAMOST-HVS1) 22:41     Target Started (31/33) Target started (31/33, GCVS CN Leo) 22:54     Target Completed Target completed (31/33, GCVS CN Leo) 23:01     Target Completed Target completed (32/33, GCVS AM CVn) 23:03     Target Started (33/33) Target started (33/33, Hickson 47) 23:22     Target Completed Target completed (33/33, Hickson 47) 23:22 Queue Completed Job Queue completed 23:22 Session Closing Session closing 23:23 Shutter Closed Shutter closed (closing time 50s) 23:24 Observatory (Manual) Observatory placed in Manual Mode 23:27   Telescope Connected Telescope Connected (TheSky6) 23:27   Camera1 Connected SBIG Camera Connected (set point -30°C) 23:28 Shutter Opened Shutter opened (opening time 44s) 23:28 Observatory (Auto) Observatory placed in Fully-Automated Mode 23:29 Session Pending Session pending (2019-01-29) 23:29   Plan Requested Observing Plan requested from AstroPlan () 23:31   Plan Loaded Observing Plan loaded to queue (2019-01-29 V2 BEST PLAN, Plan ID: 258) 23:31   Camera1 Connected SBIG Camera Connected (set point -30°C) 23:31   Telescope Connected Telescope Connected (TheSky6) 23:32 Equilibration Started Dome Equilibration started 23:32   Queue Started Observing Queue started (33 targets selected) 23:32     Target Started (1/33) Target started (1/33, GCVS SY Cnc) 23:37     Target Completed Target completed (1/33, GCVS SY Cnc) 23:46 Session Resumed Live Session Resumed (2019-01-29 S00652, ImageSaveNum: 652291) 23:46 Obs.Manager Started Obs.Manager started 23:46 Observatory (Auto) Observatory placed in Fully-Automated Mode 23:46 Session Pending Session pending (2019-01-29) 23:46   Plan Loaded Observing Plan loaded to queue (2019-01-29 V2 BEST PLAN, Plan ID: 258) 23:47   Camera1 Connected SBIG Camera Connected (set point -30°C) 23:47   Telescope Connected Telescope Connected (TheSky6) 23:47 Equilibration Started Dome Equilibration started 23:47   Queue Started Observing Queue started (32 targets selected) 23:47     Target Started (2/33) Target started (2/33, LAMOST-HVS1) 23:49     Target Aborted (2/33) Target aborted (2/33, LAMOST-HVS1) due to other condition 23:50     Target Started (4/35) Target started (4/35, GCVS CM Tau) 23:57     Target Completed Target partially completed (4/35, GCVS CM Tau) 23:58   Telescope Parked Telescope parked 00:04   Telescope Connected Telescope Connected (TheSky6) 00:08 Observatory (Auto) Observatory placed in Fully-Automated Mode 00:08 Session Pending Session pending (2019-01-29) 00:08   Plan Loaded Observing Plan loaded to queue (2019-01-29 V2 BEST PLAN, Plan ID: 258) 00:08   Camera1 Connected SBIG Camera Connected (set point -30°C) 00:08   Telescope Connected Telescope Connected (TheSky6) 00:09 Equilibration Started Dome Equilibration started 00:09   Queue Started Observing Queue started (31 targets selected) 00:09     Target Missed (3/33) Target Missed (3/33, GCVS U MON) 00:15     Target Completed Target completed (5/33, GCVS RX And) 00:29     Target Completed Target completed (6/34, M31_AT2018lcl) 00:29     Target Missed (7/34) Target Missed (7/34, GCVS ER UMa) 00:35 Observatory (Auto) Observatory placed in Fully-Automated Mode 00:35 Session Pending Session pending (2019-01-29) 00:35   Plan Loaded Observing Plan loaded to queue (2019-01-29 V2 BEST PLAN, Plan ID: 258) 00:35   Camera1 Connected SBIG Camera Connected (set point -30°C) 00:35   Telescope Connected Telescope Connected (TheSky6) 00:35 Equilibration Started Dome Equilibration started 00:35   Queue Started Observing Queue started (26 targets selected) 00:36     Target Aborted (8/33) Target aborted (8/33, C/2015 O1 (PANSTARRS)) due to other condition 00:40 Focusing Started (Foc1) Foc1 Focusing Started (TCF-S) 00:41 Critical Conditions Alert Critical Conditions Alert (Obs.Manager will close the Shutter 00:41   Focusing Aborted Foc1 Focusing Aborted 00:41     Target Aborted (9/34) Target aborted (9/34, M31_AT2018lcl) due to cloud 00:41 Session Suspended Session suspended 00:42 Shutter Closed Shutter closed (closing time 48s) 00:43 Session Resuming Session resuming 00:44 Shutter Opened Shutter opened (opening time 45s) 00:46     Target Aborted (10/34) Target aborted (10/34, GCVS CN Leo) due to cloud 00:46 Focusing Started (Foc1) Foc1 Focusing Started (TCF-S) 00:49   Focusing Completed Foc1 AutoFocus Completed (Profile No 2) 00:57     Target Aborted (11/35) Target aborted (11/35, M31_AT2018lcl) due to other condition 00:59 Focusing Started (Foc1) Foc1 Focusing Started (TCF-S) 01:02   Focusing Completed Foc1 AutoFocus Completed (Profile No 3) 01:24     Target Completed Target completed (12/36, NGC 3254 SN2019np) 01:32     Target Completed Target partially completed (15/36, GCVS RR Tau) 01:32     Target Started (16/36) Target started (16/36, GCVS FU Ori) 01:38     Target Completed Target completed (16/36, GCVS FU Ori) 01:45     Target Completed Target completed (17/36, 38P/Stephan-Oterma) 01:59     Target Started (19/36) Target started (19/36, GCVS U Her) 02:10     Target Started (20/36) Target started (20/36, GCVS SS Cyg) 02:24     Target Started (21/36) Target started (21/36, GCVS EV Lac) 02:32     Target Started (22/36) Target started (22/36, GCVS S Cyg) 02:46     Target Completed Target completed (22/36, GCVS S Cyg) 02:46     Target Started (23/36) Target started (23/36, Hickson 72) 03:06     Target Completed Target completed (23/36, Hickson 72) 03:08     Target Started (24/36) Target started (24/36, Hickson 73) 03:27     Target Completed Target completed (24/36, Hickson 73) 03:30     Target Started (25/36) Target started (25/36, Hickson 75) 03:48     Target Completed Target completed (25/36, Hickson 75) 03:52     Target Started (26/36) Target started (26/36, Hickson 67) 04:11     Target Completed Target completed (26/36, Hickson 67) 04:14     Target Started (27/36) Target started (27/36, Hickson 76) 04:33     Target Completed Target completed (27/36, Hickson 76) 04:36     Target Started (28/36) Target started (28/36, GCVS AM CVn) 04:41     Target Completed Target completed (28/36, GCVS AM CVn) 04:45     Target Started (29/36) Target started (29/36, GCVS R CrB) 04:49     Target Completed Target completed (29/36, GCVS R CrB) 04:53     Target Started (30/36) Target started (30/36, GCVS BL Lac) 05:00     Target Completed Target completed (30/36, GCVS BL Lac) 05:02     Target Started (31/36) Target started (31/36, WDS GRB 34) 05:07     Target Completed Target completed (31/36, WDS GRB 34) 05:10     Target Started (32/36) Target started (32/36, GCVS HH And) 05:17     Target Started (33/36) Target started (33/36, GCVS DY Per) 05:26     Target Completed Target completed (33/36, GCVS DY Per) 05:27     Target Started (34/36) Target started (34/36, GCVS AM Her) 05:35     Target Completed Target completed (34/36, GCVS AM Her) 05:37     Target Started (35/36) Target started (35/36, 61 Cyg) 05:40     Target Completed Target completed (35/36, 61 Cyg) 05:44     Target Started (36/36) Target started (36/36, GCVS Z And) 05:50     Target Completed Target completed (36/36, GCVS Z And) 05:50 Queue Completed Job Queue completed 05:50 Session Closing Session closing 05:51 Shutter Closed Shutter closed (closing time 50s) 05:55 Session Finished Session Finished

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Operational Issues (2019-01-29, S652)

• Critical Issues (0)
• Major Issues (4)
  
• Minor issues (11)
• Continuous Improvement (5)

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Critical Issues

• None

Major Issues

• Problem with first target in session. After slewing to and centering target, execution moved onto 'Activating Guidescope guiding'. A request for Guide Exposure produced a Fail response
  Uncertain ({"jsonrpc":"2.0","result":0,"id":12} )
  and a Guide Request also failed with the Info message  
  Event : Error: all equipment must be connected first
  Progress then stalled , the equipment (ZWO camera & POTH->LX200GPS/R ) were then connected using either 'PHD2 Connect button or the Connect Equipment in PHD2.  The job queue appeared to be frozen.  Nether Abort Job, or Kill Script worked,  and it was eventually necessary to kill and restart TheSky6, CCDSoft, POTH, AstroMain.   The only message in the log file was "Checking PHD2 App State (Result=Stopped)"
   Resolved itself ?  (monitor for any future occurances of issue)
    
• Shutter unexpectedly closed itself  Whilst performing a Pre-Target Focusing, the Shutter unexpectedly closed.  Whilst the Focus Profile Run recognised that the focus star had been irretrievably lost and aborted itself, the reason for the shutter closure (like the unexpected shutter closure/ job suspension during S649 session and S650 Session) is unknown.  Did the Relay triggered the closure (Yes)
   Resolved (2019) by changing the relay configuration & settings.
   
• AstroMain program not responding. Program froze at one point in the session. Details lacking.   Issue considered to be fixed in AstroMain 3.38 following major re-factoring to provide greater isolation of the UI Thread from the business code.  Deemed fixed by tests during the final part of session S867 (2021-03-05).
  Resolved 2021-03-06 (AstroMain 3.38)
   
• Slew Issue with NGC SN 2019np.   Deemed to be closed as this is clearly not a general issue and there is insufficient data to understand/fix this particular incident.
  Closed 2021-03-10.

Minor issues

• ToO Target added at during the last job queue target, which reported as having been added to Job Queue, didn't actually get added
  A ToO was requested for SN 2019np whilst the Job Queue was executing frames for the final target (Hickson 47, Target 33/33).   The report clearly shows its receipt and apparent appending to the Job Queue
  Appending ToO Target...     Ok        Target (NGC 3254 SN2019np, priority 2) appended to job queue
  The ToO target didn't appear on the Queue Table and didn't appear on the Annotated AllSky Images from this time.  After completing the Hickson 47 target the Job Queue ended (Annoyingly the Obs.Manager then took this as a trigger to Close the Session and Begin a Shutdown of the observatory)
  Fixed ?
   
  
• Provide means to express alternate actions after finishing a Fully Automated Job Queue .   When Job queue is completed with Observatory in Fully-Automated Mode execution immediately moves to Closing Session / Shutdown.  This can be annoying if still monitoring the session with the aim of adding a new observing plan or planning to perform manual operated tasks or observing. This is especially true when there is plenty of time left until dawn and conditions are good
    Fixed 2019-01-30 (AstroMain 3.8.4,   Options to Drop back to Manual or Create/Execute New Observing Plan)
   
• Target Abort is not properly handled coming out of Pre-Target Focus Run.  The Obs.Manger issued an Observatory Alert  for critical conditions (type not stated) at 00:41 and set the 'Abort Target Flag'.   Execution of a pre-target Focus Profile Run immediately aborted, but coming back to target execution the Guidscope guiding was initiated and only after this was the Target Execution Aborted.
    Fixed 2019-01-30 (AstroAllSky 3.3.8)   << May need to look at user abort out of Pre-Target Focusing without cancelling target itself
    
• Report Line after Resuming a Session.    If a target is waiting before or during a Session Suspension  (e.g wait for 6.9 minutes..)  then when a Session Resumes a new report line is needed to confirm the remaining wait time (eg . wait for 2.2 minutes).  Without this information it looks like the Resuming Session Code has frozen or not doing anything. If the post-resume execution immediately goes into action, then there isn't line is obviously not required.
  Closed (AstroMain)
   
  
• Observing Plan only covered the first half of the night, even though sky conditions are Dark (moon not risen to 3am).  User to keep Targets Database topped up with sufficient numbers of new targets, covering various sky constraints and seasons.  Issue is currently resolved (2020-2021) but could resurface if the number of active targets in database is allowed to fall too low.
  Closed 2020 (AstroPlan/AstroDatabase)
     
• GuideStat reporting issues.  Grouped DriftX, DriftY values (guidestats report) whilst now generally different are still  identical at a frequency greater than expected.  RmsErrX and RmsErrY are still identical
   (this was a surprise as a fix had been recently made to the code)
    Fixed 2019-01-31 (AstroMain 3.8.5)
   
• Sky Condition lines for each target to be shorterned so that they don't wrap around to next line.  Lines like 'Clarity, Rain, Wind, Temp'
    Fixed 2019-01-30 (AstroAllSky 3.3.8)
    
• After Unparking a Scope or Power Cycling a Parked Scope the Scope field in Obs.Manager Tab still shows scope as 'Parked'
    Fixed 2019-01-31 (AstroMain 3.8.5)
   
• Always show Wind Direction on AllSky Image Annotation. Wind Direction might be being deliberately written as "---" when wind speed is 0.0.   However wind indicator is generally still reliable even when the wind speed is not registering wind or has had a communication issue.
    Fixed 2019-01-30 (AstroAllSky 3.3.8)
   
• Implement trial of HFD Fast Focus routine prior to each target,  but with Update Offset disabled
    Done  2019-01-30 (Session S653)
   
• Issue with autoguiding of M31 Nova target (low in the NW Sky).   This may have been a seeing issue or a telescope balance issue, but it gave rise to jerky Dec guiding corrections. No indication that there is any fundamental issue with autoguiding set up. Closed in 2023, this is no longer a particular issue.
  Closed (Session) 

Continuous Improvement

• Optimise Ordering of Session Starting tasks. After Session Starting, the ObsManager execution proceeds to connecting the camera, and then the telescope, and then checks if session is already active. This should check should be done before Camera /Scope Connection to present a better flow of reporting
    Done 2019-01-30 (AstroMain 3.8.4,   Resolved by using a ReportLine/ReportTitle block, reordering considered too disruptive)
   
• Deprecate & eventually remove Dashboard Form. The dahboard is not used, but nevertheless shoud be reviewed and carefully done. Functionality is largely taken up by the ObsViewer Form and Obs.Manger Tab
    Done 2019-02-08 (AstroMain 3.9)
   
• Add Sky Transparency/ FWHM flag to the Obs.Manager tab in someway. Data is posted to current session webpage
  Closed Jan 2020
   
• Autoguiding Performance.  Start Monitoring the guide star movements in PHD2, and learn how to better interpret them and how guiding can be improved.   Look into RA oscillation values.   New tools have been developed to show guiding performance in terms of individual guiding charts and summary guiding data for each session.
  Closed, May 2020 (AstroMain)
   
• Checkout functionality of under-used routines in AstroMain specfically 'Show Image in ImageViewer', 'Show Time Series', 'Show Star Graphs'
    >> Review AstroMain Code

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Autofocussing / HFD Profiles

Focus Profiles from Session,  including new HFD measurements

Profile 1: Re-focusing prior to Target 10 (GCVS Z And)

Profile 2: Re-focusing prior to Target 22 (NGC 2585, Set 2)

Profile 3: Re-focusing prior to Target 33 (GCVS SY Cnc) My Standard autofocus method has been thrown off by two anomalous  FWHM points at either end of range. HFD method performs ok.

Profile 4: Focusing Test Focusing Test on planned Focus Star (GSC 1310:2696) for Crab Pulsar Project.   The focus star is a double star and cause problems for autofocusing

Issues

• Where there is insufficient data to produce a good quality inner or outer line,  then line should either not be drawn or the default gradient line (if
  gradient is available) should be drawn as a dashed line through the largest HFD point (usually the first or last point as appropriate)
  >> Extend code for drawing of inner and outer limit lines
   
• Gradient of Inner and Outer Focus Lines (HFD) to be annotated on diagram
  >> Extend code for drawing of inner and outer focus line gradients

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Pegasus UPB - Replacement Humidity Sensor

A new Sensor arrived today (2019-01-29)  to replace the original sensor which had failed and was returned to supplier earlier this month.
( See earlier notes Pegasus UPB - Failed Humidity Sensor (2019-01-08) )

The sensor was fitted in the Observatory ahead of the S652 session and data feed examined which confirmed that is readings were consistent with those from Oregon Scientific Temp/Humidity sensor that is also located in the observatory.   

The AutoDew facility on the UPB PowerBox was confirmed to again be available, though at present the AutoDew facility can't be used as there current draw of heaters + LX200  leads to too much voltage reduction in the DC extension cable currently used  power the UPB (see earlier notes  Pegasus PowerBox Voltage Supply Issue (2019-01-20) ).

Replacement Temperature-Humidity Sensor for Pegasus Astro Ultimate PowerBox

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