David's Astronomy Pages Notes - Session 804 (2020-09-03)

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Notes (S805)

	2020-09-03 (Session 804)
	Session Aims & Highlights
	- Observing Result  - Night Summary Plot  - Session Event Log
	Operational Issues
	- Critical Issues (0),  Major Issues (2),  Minor Issues (3),  Continuous Improvement (6)
	Images from 2020-09-03 >>
	Investigation - "Powerbox Port Lost" message after turning on Scope Power

Session Aims & Highlights (2020-09-03)

Main aims

1. Targets. Acquire images of a number of targets if conditions allow.
2. Obs.Manager. Examine response of Obs.Manager to the loss of AllSky/Weather information in the case that the AllSky/Weather computer crashes, hibernates or otherwise goes offline, which was considered a likely event given the number of daytime outages in past 48 hours.
   (in the event the AllSky/Weather computer remained responsive for the entire session.)

Equipment & Software

• 12" LX200 and ST-10XME
• 80mm APO and ZWO ASI 178MC
• CCDApp2, TheSky6, CCDSoft5, PHD2,  DeviceHub 4.6.1.10, UPB 1.5 
• Pegasus UPB & Motor Focus, TCF-S
• SharpCap 3.2, PHD2  2.6.9
   
• AstroMain 3.28.3,  AstroGuard 1.4.3,   AstroPlan 1.16,  AstroShCap 1.2.23, AstroVOE 1.3.6
  (AstroWeather 1.10.11, AstroAllSky 3.6)
  

Highlights

• AutoStart. AutoStart was successfully used to kick off the session.
• Foc1 Focusing. A number of targets were successfully imaged once the focus issue was resolved.

Lowlights

• Cloud. Conditions deteriorated after less than 1 hour and only 6 targets were observed.

Summary Plots & Logs

Observing Plan

Observing Result

Dome & Scope Slewing Performance

Slew/Centering Performance

Guiding Performance

Sky Conditions (Locate Frames)

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

Pre-Session Weather Forecast (API data from darksky.net) Pre-Session Weather forecast showed dry conditons for the night with minimum temperature of 13°C,  but fairly cloudy in first part of night (52 to 72% cloud cover) but gradually clearing towards dawn (37 - 4% cloud cover). Wind was forecast to be moderate (20 mph), and it was not expected that conditions would be suitable for an observing session. In the event conditions were less windy that expected and after seeing sky clearing at 01:00 - 01:30 a session was initiated via AutoStart around 01:30. Cloud unfortunately developed around 02:30 which persisted till Dawn. Minimum outside temperature was 13.5°C.

Session Event Log

Time     Event Detail 21:14:33 Session Created Live Session Created (2020-09-03 S00804, ImageSaveNum: 804001) 21:14:35   Scope Switched On Telescope Power has been switched on via UPB Powerbox. 21:14:37   UPB Port Lost UPB Powerbox Port Lost 21:16:26   Services Started Observatory Services started 21:16:35 Observatory (Auto) Observatory placed in Fully-Automated Mode 21:16:37 Session Monitoring AutoStart monitoring for Live Session opportunity starting between 21:00 & 04:15 21:16:39   AutoStart Waiting AutoStart waiting till earliest start time at 21:00 21:16:41   AutoStart Delayed Session delayed due to cloud 21:16:43 Session AutoStarting Session autostarting (21:14) 21:16:45 Session Pending Session pending (2020-09-03) 21:16:47 Session Initiating Session initiating (2020-09-03) 21:16:49   Plan Requested Observing Plan requested from AstroPlan (1.16) 21:18:10   Plan Loaded Observing Plan loaded to queue (2020-09-03 V1 BEST PLAN, Plan ID: 538) 21:18:22   Camera1 Connected SBIG Camera Connected (set point -10°C) 21:18:28   Telescope Connected Telescope Connected (TheSky6) 21:18:39 Session Equilibration Session ready for dome & camera equilibration 21:19:24   Dome Opened Dome opened (opening time 45s) 21:19:28   Equilibration Started Dome Equilibration started 21:23:05   Equilibration Ended Dome Equilibration ended (3.7 mins total) 21:23:07 Session Running Session running 21:23:09   Queue Started Observing Queue started (40 targets selected) 21:24:19       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 21:29:11       Focusing Completed Foc1 AutoFocus Completed (Profile No 1) 21:31:50       Focusing Completed Foc1 AutoFocus Completed (Profile No 1) 21:31:52       Focusing Started-Foc2 Foc2 Focusing Started (Secondary Scope, using ShCap) 21:34:23       Focusing Completed Foc2 AutoFocus Completed (Profile No 2, wide) 21:36:25       Focusing Completed Foc2 AutoFocus Completed (Profile No 2) 21:36:45       Focusing Checked Foc2 Focusing Check Succeeded 21:36:48     Target Missed (1/40) Target's time slot was missed (1/40, GCVS BL Lac) 21:36:50     Target Started (2/40) Target started (2/40, NGC 6704) 21:37:53   UPB.Switch Restart UPB.Switch has been restarted. 21:39:43       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 21:42:34       Focusing Completed Foc1 AutoFocus Completed (Profile No 3) 21:47:28     Target Completed Target completed (2/40, NGC 6704) 21:47:30     Target Started (3/40) Target started (3/40, GCVS SS Her) 21:49:57       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 21:52:40       Focusing Completed Foc1 AutoFocus Completed (Profile No 4) 21:55:48     Target Completed Target completed (3/40, GCVS SS Her) 21:55:50     Target Started (4/40) Target started (4/40, GCVS CY Lyr) 21:57:47       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 22:00:42       Focusing Completed Foc1 AutoFocus Completed (Profile No 5) 22:04:11     Target Completed Target completed (4/40, GCVS CY Lyr) 22:05:33     Target Started (5/40) Target started (5/40, GCVS FG Sge) 22:07:25       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 22:10:13       Focusing Completed Foc1 AutoFocus Completed (Profile No 6) 22:12:37     Target Completed Target completed (5/40, GCVS FG Sge) 22:13:44     Target Started (6/40) Target started (6/40, Berkeley 43) 22:15:51       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 22:18:54       Focusing Completed Foc1 AutoFocus Completed (Profile No 7) 22:24:57     Target Completed Target completed (6/40, Berkeley 43) 22:25:44     Target Started (7/40) Target started (7/40, HIP 87937) 22:28:37       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 22:31:22       Focusing Completed Foc1 AutoFocus Completed (Profile No 8) 22:34:58     Target Completed Target completed (7/40, HIP 87937) 22:35:00     Target Started (8/40) Target started (8/40, GCVS AM Her) 22:37:07       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 22:39:58       Focusing Completed Foc1 AutoFocus Completed (Profile No 9) 22:44:52     Target Completed Target completed (8/40, GCVS AM Her) 22:44:54     Target Started (9/41) Target started (9/41, NGC 2782, ToO) 22:44:56     Target Failed Target failed due to az limit (9/41, NGC 2782, ToO) 22:44:58     Target Started (10/41) Target started (10/41, GCVS S Cyg) 22:45:01     Target Failed Target failed due to slew error (10/41, GCVS S Cyg) 22:46:17     Target Aborted (11/41) Target aborted (11/41, WDS GRB 34) due to GRB Alert 22:46:19     Target Started (12/42) Target started (12/42, UGC 6930, ToO) 22:49:22       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 22:52:23       Focusing Completed Foc1 AutoFocus Completed (Profile No 10) 23:03:24     Target Completed Target completed (12/42, UGC 6930, ToO) 23:07:21     Target Started (13/42) Target started (13/42, GCVS SS Cyg) 23:10:19       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 23:13:07       Focusing Completed Foc1 AutoFocus Completed (Profile No 11) 23:16:40     Target Completed Target completed (13/42, GCVS SS Cyg) 23:22:32     Target Started (14/42) Target started (14/42, GCVS CI Cyg) 23:24:15       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 23:28:11       Focusing Completed Foc1 AutoFocus Completed (Profile No 12) 23:31:42     Target Completed Target completed (14/42, GCVS CI Cyg) 23:31:44     Target Started (15/42) Target started (15/42, 61 Cyg) 23:33:06       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 23:36:01       Focusing Completed Foc1 AutoFocus Completed (Profile No 13) 23:37:12     Target Completed Target completed (15/42, 61 Cyg) 23:38:19     Target Started (16/42) Target started (16/42, GCVS Z And) 23:40:36       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 23:43:24       Focusing Completed Foc1 AutoFocus Completed (Profile No 14) 23:47:03     Target Completed Target completed (16/42, GCVS Z And) 23:47:05     Target Started (17/42) Target started (17/42, GCVS RX And) 23:49:53       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 23:52:32       Focusing Completed Foc1 AutoFocus Completed (Profile No 15) 23:55:03     Target Completed Target completed (17/42, GCVS RX And) 23:55:28     Target Started (18/42) Target started (18/42, GCVS TT Ari) 23:57:53       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 00:00:57       Focusing Completed Foc1 AutoFocus Completed (Profile No 16) 00:07:05     Target Completed Target completed (18/42, GCVS TT Ari) 00:07:24     Target Started (19/42) Target started (19/42, Basel 10) 00:09:43       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 00:12:54       Focusing Completed Foc1 AutoFocus Completed (Profile No 17) 00:18:16     Target Completed Target completed (19/42, Basel 10) 00:19:24     Target Started (20/42) Target started (20/42, GCVS DY Per) 00:21:44       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 00:24:29       Focusing Completed Foc1 AutoFocus Completed (Profile No 18) 00:28:46     Target Completed Target completed (20/42, GCVS DY Per) 00:29:32     Target Started (21/42) Target started (21/42, GSC 1224:29) 00:32:30       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 00:35:33       Focusing Completed Foc1 AutoFocus Completed (Profile No 19) 00:39:41     Target Completed Target completed (21/42, GSC 1224:29) 00:40:14     Target Started (22/42) Target started (22/42, GCVS GK Per) 00:42:17       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 00:45:09       Focusing Completed Foc1 AutoFocus Completed (Profile No 20) 00:48:01     Target Completed Target completed (22/42, GCVS GK Per) 00:48:55     Target Started (23/42) Target started (23/42, Berkeley 69) 00:51:46       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 00:52:29       Focusing Failed Foc1 Focusing Failed - star lost 00:59:11     Target Completed Target completed (23/42, Berkeley 69) 01:00:55     Target Started (24/42) Target started (24/42, GCVS ER UMa) 01:03:55       Focusing Failed Foc1 Focusing Failed - star is lost (TCF-S) 01:09:02     Target Completed Target completed (24/42, GCVS ER UMa) 01:11:13     Target Started (25/42) Target started (25/42, GCVS HH And) 01:13:28       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 01:16:36       Focusing Completed Foc1 AutoFocus Completed (Profile No 22) 01:18:10     Target Completed Target completed (25/42, GCVS HH And) 01:19:28     Target Started (26/42) Target started (26/42, GCVS U And) 01:21:17       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 01:23:56       Focusing Completed Foc1 AutoFocus Completed (Profile No 23) 01:33:27     Target Completed Target completed (26/42, GCVS U And) 01:33:34     Target Started (27/42) Target started (27/42, GCVS Z And) 01:35:13       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 01:38:25       Focusing Completed Foc1 AutoFocus Completed (Profile No 24) 01:42:04     Target Completed Target completed (27/42, GCVS Z And) 01:42:23     Target Started (28/42) Target started (28/42, GCVS RX And) 01:44:15       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 01:46:53       Focusing Completed Foc1 AutoFocus Completed (Profile No 25) 01:49:26     Target Completed Target completed (28/42, GCVS RX And) 01:50:44     Target Started (29/42) Target started (29/42, GCVS TT Ari) 01:53:23       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 01:56:27       Focusing Completed Foc1 AutoFocus Completed (Profile No 26) 02:02:36     Target Completed Target completed (29/42, GCVS TT Ari) 02:02:38     Target Started (30/42) Target started (30/42, Basel 10) 02:05:06       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 02:08:04       Focusing Completed Foc1 AutoFocus Completed (Profile No 27) 02:13:28     Target Completed Target completed (30/42, Basel 10) 02:14:39     Target Started (31/42) Target started (31/42, GCVS DY Per) 02:16:21       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 02:16:32   SoftSuspend Called Soft Suspend is called due to Deteriorating Conditions (too few stars) 02:17:22 Critical Cloud Alert Critical Cloud Alert (Obs.Manager will close the Shutter) 02:17:24   HardSuspend Called Hard Suspend is called due to Critical Conditions (cloud) 02:17:32       Focusing Aborted Foc1 Focusing Aborted 02:17:34     Target Aborted (31/42) Target aborted (31/42, GCVS DY Per) due to cloud 02:17:36   Queue Paused Queue paused for SoftSuspend 02:17:41 Session Suspended Session suspended 02:17:43   Queue Paused Queue pausing for HardSuspend 02:18:27   Dome Closed Dome closed (closing time 46s) 02:24:17     Target Cancelled Target cancelled (31/42, GCVS DY Per) due to other condition 02:24:28 Session Resuming Session resuming 02:25:13   Dome Opened Dome opened (opening time 45s) 02:25:15 Session Running Session running 02:25:17   Queue Resumed Observing Queue resumed 02:25:19     Target Started (32/42) Target started (32/42, 68P/Klemola) 02:29:06       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 02:31:51       Focusing Completed Foc1 AutoFocus Completed (Profile No 29) 02:40:02     Target Completed Target completed (32/42, 68P/Klemola) 02:40:04     Target Started (33/42) Target started (33/42, Berkeley 72) 02:43:02       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 02:48:15       Focusing Completed Foc1 AutoFocus Completed (Profile No 30) 02:54:21     Target Completed Target completed (33/42, Berkeley 72) 02:54:23     Target Started (34/42) Target started (34/42, GCVS RR Tau) 02:57:02       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 02:59:52       Focusing Completed Foc1 AutoFocus Completed (Profile No 31) 03:05:41     Target Completed Target completed (34/42, GCVS RR Tau) 03:05:44     Target Started (35/42) Target started (35/42, Berkeley 17) 03:07:58       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 03:10:37       Focusing Completed Foc1 AutoFocus Completed (Profile No 32) 03:15:55     Target Completed Target completed (35/42, Berkeley 17) 03:15:57     Target Started (36/42) Target started (36/42, GCVS CM Tau) 03:17:37       Focusing Failed Foc1 Focusing Failed - star is too dim (TCF-S) 03:32:10     Target Completed Target completed (36/42, GCVS CM Tau) 03:34:06     Target Started (37/42) Target started (37/42, GCVS SU Tau) 03:35:43       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 03:38:23       Focusing Completed Foc1 AutoFocus Completed (Profile No 33) 03:42:31     Target Completed Target completed (37/42, GCVS SU Tau) 03:44:02     Target Started (38/42) Target started (38/42, C/2020 F8 (SWAN)) 03:46:50       Focusing Failed Foc1 Focusing Failed - star is too dim (TCF-S) 03:51:46   SoftSuspend Called Soft Suspend is called due to Deteriorating Conditions (too few stars) 03:51:56   SoftSuspend Cancelled Soft Suspend is cancelled due to Improved Conditions 04:01:21     Target Completed Target completed (38/42, C/2020 F8 (SWAN)) 04:01:23     Target Started (39/42) Target started (39/42, GCVS FO Ori) 04:03:22       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S) 04:06:01       Focusing Completed Foc1 AutoFocus Completed (Profile No 34) 04:09:48     Target Completed Target completed (39/42, GCVS FO Ori) 04:10:12     Target Started (40/42) Target started (40/42, GCVS FU Ori) 04:10:17   Dome Closed Dome closed (closing time 45s) 04:10:21     Target Aborted (40/42) Target aborted (40/42, GCVS FU Ori) due to cloud 04:10:23   Queue Paused Queue pausing for HardSuspend 04:10:25 Session Suspended Session suspended 04:10:27   Dome Closed Dome already closed (closed at 04:10, closing time 45s) 04:12:28 Session Resuming Session resuming 04:14:08 Session Suspended Session suspended 04:14:10   Dome Closed Dome already closed (closed at 04:10, closing time 45s) 04:16:13 Session Resuming Session resuming 04:16:38   Dome Closed Dome closed (closing time 10s) 04:17:54 Session Suspended Session suspended 04:17:56   Dome Closed Dome already closed (closed at 04:16, closing time 10s) 04:18:22     Target Cancelled Target cancelled (40/42, GCVS FU Ori) due to light conditions 04:19:58 Session Resuming Session resuming 04:20:18   Dome Closed Dome closed (closing time 10s) 04:21:39 Session Suspended Session suspended 04:21:41   Dome Closed Dome already closed (closed at 04:20, closing time 10s) 04:23:44 Session Resuming Session resuming 04:23:54   Dome Closed Dome closed (closing time 5s) 04:25:24 Session Suspended Session suspended 04:25:26   Dome Closed Dome already closed (closed at 04:23, closing time 5s) 04:27:29 Session Resuming Session resuming 04:29:10 Session Suspended Session suspended 04:29:12   Dome Closed Dome already closed (closed at 04:23, closing time 5s) 04:30:02     Target Cancelled Target cancelled (41/42, Berkeley 26) due to light conditions 04:31:14 Session Resuming Session resuming 04:31:39   Dome Closed Dome closed (closing time 10s) 04:32:55 Session Suspended Session suspended 04:32:57   Dome Closed Dome already closed (closed at 04:31, closing time 10s) 04:35:00 Session Resuming Session resuming 04:35:25   Dome Closed Dome closed (closing time 15s) 04:36:40 Session Suspended Session suspended 04:36:42   Dome Closed Dome already closed (closed at 04:35, closing time 15s) 04:38:45 Session Resuming Session resuming 04:38:55   Dome Closed Dome closed (closing time 5s) 04:40:26 Session Suspended Session suspended 04:40:28   Dome Closed Dome already closed (closed at 04:38, closing time 5s) 04:42:30 Session Resuming Session resuming 04:44:11 Session Suspended Session suspended 04:44:13   Dome Closed Dome already closed (closed at 04:38, closing time 5s) 04:49:20     Target Cancelled Target cancelled (42/42, GCVS U Gem) due to light conditions 04:49:26   Queue Completed Job Queue completed 04:49:31 Session Closing Session closing 04:49:36   Dome Closed Dome already closed (closed at 04:38, closing time 5s) 04:49:50   Dome Parked Dome parked (parking time 14s), Az: 90.1 deg 04:50:30   Telescope Parked Telescope parked (parking time 38s) 04:51:00   Telescope Switched Off Telescope Power has been switched off via UPB Powerbox. 04:51:47   Services Stopped Night Services stopped 04:51:49 Session Housekeeping Housekeeping Started (Cleanup FITS, Create Fits Summary, Transfer Files) 04:52:13 Session Finished Session Finished

Session Alerts

Time     Alert Detail 21:37:53 UPB.Switch UPB.Switch has been successfully restarted. 04:09:32 Unexpected Dome Closure Dome is unexpectedly closing (Good Conditions) 04:49:50 Dome Position Issue Reported park angle (90.1 degs) shows a discrepency of 0.1 degs

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Operational Issues (2020-09-03, S804)

• Critical Issues (0)
• Major Issues (2)
• Minor Issues (3)
• Continuous Improvement (6)

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Critical Issues

•  None

Major Issues

• Cloud Sensor Data went down / became stuck at around 04:03 onwards.   This had the impact of losing 30 minutes of good observing time at end of session, and confusion as to the cause of the outage.  Reason for outage seems to be CloudSensor program crashing, hanging or being forced to close by Window/Task Schedular on the AllSky/Weather Computer.   The problem is one of a series of esculating problems on the AllSky/Weather computer which should now be resolved with the replacemeny of the AllSky/Weather computer by a new one.  First 48 hours have been problem free.
  Resolved with new replacement AllSKy/Weather Computer, 2020-04-04 (Observatory)
   
• There were 9 attempts to resume suspended session and open the shutter  between  04:12 and 04:42 but in each case the shutter closed after 5 to 15s.   Things started around 04:10 when the shutter unexpectedly closed causing the session to suspend in reaction. Shutter closure was commanded by AstroGuard in response to Light Conditions Warning at 04:09 (closing time 47s).  This was instigated in response to CloudSensor going offline at ~ 04:03 (light 0.2, clarity 33, rain 0), loosing valid data on Clarity, Light and Rain, and causing Synopsis to be send altered warning/critical values). Apart from noting Abort FU Ori due to cloud at 04:10 and Waiting for HardSuspend to clear, the Obs.Manager didn't respond to the outage in CloudSensor data, but carried on (most likely guided by the ongoing high AllSkyStars Count (39 - 42) and clarity values 'stuck' on 33.3,  possibly combined with Night Risk value of 2 (medium). ).  Treating  conditions as ok to observe,  AstroMain attempted 9 times to resume the session and open the dome. In each case AstroGuard intervened and closed the shutter within 15s, leading to open/close cycle over 30 minutes.   AstroMain sees Clarity 33.3 and does seem to appreciate that it is 'stuck' on this value for some 30+ mins, AstroWeather presumably doesn't recognise that it is stuck on this value, though at 04:09 traffic lights for Light and Rain change from Green to Yellow  (for no change in value), though Clarity remains on Green. Whilst AstroMain and AstroGuard need to keep some level of autonomy (either can call Shutter to Close), they need to communicate and 'agree' an action (either close the shutter and keep it closed or open the shutter), but not take two separate courses of action for 30 mins.
   Review code/log  and define required changes in logic for the situation encountered (AstroMain, AstroGuard, AstroWeather, AstroAllSky/Synposis)
   

Minor Issues

• After UPB.Switch was used to turn on Scope Power a "Powerbox Port lost" message is reported (23:14). At 23:14 Observatory Night Services were started via AutoStarted, which included Turning on Telescope Power using UPB.Switch.   An information message "Powerbox Port lost at 2020-09-03 21:14:34" was immediately reported by AstroMain and a "UPB Port Lost" session event sent to the database. Event didn't stop the telescope from powering up it would seem the problem is not necessary critical.  Issue was investigated (see Investigation - "Powerbox Port Lost" message after turning on Scope Power). Code modified in AstroMain 3.28.4 so that PowerBox.PortWhenConnected is only set to ""  when connection to all 3 UPB Ascom Drivers fail.  Future sessions to be monitored for re-occurance of issue.  Review on 2021-06-04 shows that there have been no reoccurances of problem and it is concluded that the fix of 2019-08-05 was successful.
  Fixed 2019-08-05 (AstroMain 3.28.4) 
   
• The "Targets Database Transfer" check at beginning of the live session reported a last transfer to observatory date of 0001-01-01 00:00 .  This is happening when session is started in AutoStart mode, which is why the issue is relatively recent and wasn't seen prior to developing the AutoStart mode.
  Fixed 2020-09-29 (AstroMain 3.29.4)
   
• Target 10/41 failed due to unexpected slew error .  Target 10/41 (GCVS S Cyg) failed due to reported slew error at 22:45.  Report file shows that Scope Position Check failure and a Dome Position warning :
    Scope Position Check..      Fail      Scope isn't pointing to the target (Ang Sep. = 2.2 arc degs)
    Checking Dome Position ...  Warning   Dome Azimuth:     246.3 degs WARNING. 33.4 degs difference from the scope
  Log File records a Slew Discrepancy of  131.71 arc min
  Problem seems to be a 'random glitch'  since targets before and after were slewed to ok.
  Slew Path contained only two points and the scope's av. slew speed (4.3 deg/sec),  31.3 degs in 7s  seems untypically high.
  Report file shows "Possible 'Timed out waiting for received data' problem" message
  It looks like SlewToTarget routine exited whilst dome slewing and scope slewing were still in progress.
  Possibly resolved by changes to Scope.SlewToRaDec routine, or it is simply a glitch that prevents TheSky6 from working. Decided to close issue.
  Closed 2020-10-20, but continue to monitor for further occurances of this or similar problem (AstroMain)
   
• Prioroty 1 ToO (for Immediate Action) was unexpectedly deferred.   Whilst job quene was running UGC 6930 was set as a Priority 1 ToO target for immediate action in AstroPlan. The target (UGC 6930) was imported by AstroMain at 22:45:50 whilst the job executor was waiting to start Target 11/41 (WDS GRB 34).  The target (UGC 6930) was inserted into the job queue but 'deferred to due to a current ToO'.  This is a subtle bug,   WDS GRB 34 is not a ToO,  and should have been aborted to make way for UGC 6930.  Maybe the code treats WDS GRB 34 (Groombridge 34) as a ToO because it contains 'GRB' in its name even though it not a GRB (gamma ray burster) ?   The issue was resolved at the time by user intervention to abort the WDS GRB 34 target which allowed UGC 6930 to begin.  When it was aborted a report message is output saying 'Target aborting due to GRB Alert' .   Issue was eventually investigated 2020-10-04 (see Investigation - ToO Insertion Issues (S793, S794, S804) and found to be due to a bug (if TargetOpportunity = True) in 'HandleToO routine that is causing unexpected messages 'Target ... is deferred due to a current ToO' when trying to insert a Prioroity 1 (Do Now) Target of Opportunity.
  Done 2020-10-05 (AstroMain 3.30)
    
• Report message 'Target aborting due to GRB Alert'  is incorrect. Target 11/41 (WDS GRB 34) was manually aborted by user to make way for a Priority 1 ToO (UGC 6930), which wasn't automatically scheduled for immediate effect but was deferred (see issue above). When GRB 34  was aborted a report message is output saying 'Target aborting due to GRB Alert' , it should say 'Target aborting due to (Urgent) ToO'.  Issue was eventually investigated 2020-10-04 (see Investigation - ToO Insertion Issues (S793, S794, S804) and found to be due to a bug (two members with same integer number) in the 'Enum AbortReason' declaration.
  Done 2020-10-05 (AstroMain 3.30)

Continuous Improvement

• If Quadratic Curve Fit to Wide Focus Search Profile is valid then why not display it and why not use it for Best Focus ? Wide Focus method currently turns off quadratic curve and bases Best Focus on single lowest FWHM value, but there is a theoretical risk than a random cosmic ray or bright portion of an unfocused star could generate a FWHM value lower than the focused star.  Should Max Pixel value be used as supporting check ?.  Prehaps points with FWHM greater than some threshold, say 15 arc sec should be ignored from the Quadratic Curve Fit ?.   CHanges made to code so quadratic curves based on points with FWHM < 15 arc sec is displayed on Wide Search Profiles.
  Done 2020-10-17 (AstroMain 3.30.8)
   
• Wide Focus Profile (which don't calculate HFD to save time) shows HFD Squares on Chart drawn at 0.0 arc sec position. Whilst it is useful to see the positions of focus points when FWHM is less than the Y Axis Max value (typically 12 arc sec), perhaps they should be shown as short coloured tick lines rather than HFD Squares.
  Fixed 2020-10-17 (AstroMain 3.30.8)
   
• Foc2 Wide Focus Profile should use a X Axis scale that is more appropriate to its small focus range (290). Range used is more appropriate for Foc1 which uses a much larger focus range (1320).
  Fixed 2020-10-17 (AstroMain 3.30.8)
   
• Need to automatically increase / decrease CCD Set Temperature between Targets.   Depending on Power / Cooling level need to be able to change CCD Set Point Temperature by +/- 5 degC,  aim is to use sparingly (just once or twice in a night) and ideally just when waiting for a target to start.
  Done 2020-10-26 (AstroMain 3.31.2)
   
• Obs.Viewer (ObsPic) should show when UPB.Switch connection / UPB Port has been lost
  To review and implement (AstroMain)
   
• Focus Profile Chart Viewer should have X Axis Scale Button that reflects new wider X Axs Scale of 750 used for Foc1 Wide Focus Profile and the new narrower X Axis Scale (TBA) used for Foc2 Standard Focus Profile.  Steps should be smart and taken into account the Profile's range.
  To review and implement (AstroMain)

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Investigation - "Powerbox Port Lost" message after turning on Scope Power

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