David's Astronomy Pages
Notes - Session 941 (2021-12-13)

 
Bullet Session Aims & Highlights
 - Observing Result
 - Night Summary Plot
 - Session Event Log
 
Bullet Operational Issues
  - Critical Issues (0),  Major Issues (1),  Minor Issues (3),  Small Defects (5),  Continuous Improvement (6)
 
Bullet Images from 2021-12-13 >>         [ Local Files >> ]
Bullet DeviceHub 6.5.1.8 (2021-12-13)
Bullet DeviceHub 6.5.1.9 (2021-12-14)

Session Aims & Highlights (2021-12-13)

Main aims

  1. PHD2 Calibration. Perform Guiding Calibration in PHD2 for TS80/178MC profile.
  2. SideOfPier Issue: Test MeadeGeneric and confirm that it has fixed 'SideOfPier' issue that was a showstopper for Guiding in last session (S940, 2021-12-10).
  3. Observatory Computer.  Continue ironing out issues with new Observatory Computer (installed 2021-12-10)
  4. Shutter Operations. Continue testing corrected code for managing shutter operations (AstroMain 3.48.2+)
  5. Targets.  Acquire images of a selection of variable stars, nearby stars, comets & deep sky targets as allowed by time & conditions.

Equipment & Software

Highlights

Notes:

  Summary Plots & Logs

Observing Plan
Image
  
Observing Result
Image
   
  
Dome & Scope Slewing Performance
Image
  
Slew/Centering Performance
Poor centering performance in Dec including two rogue jogs (eventually fixed 2021-12-16)
Image
  
Guiding Performance
Reasons for poor Dec guiding :
Blacks point (13, 15,
 18, 19, 20)
 
Red points (7)   -
Orange points (2, 8)   -
Yellow point (22)   -
Yellow points (17, 22 ? )   -
Green points  ()    -

Image
Image
  
Sky Conditions (Locate Frames)
Sky Brightness measurements are invalid due to a SBIG camera bias level issue (eventually fixed 2022-01-02)
Image
 
Night Sky Summary Plot
Top axis: Sky Brightness at Zenith (in ADU/s)
Lefthand axis: Local Time (hh LT). Righthand axis: Sun Altitude (degs)

Image   
  
Actual Weather vs Pre-Session Weather Forecast
Image
Image   
  
Session Event Log
Time     Event Detail
16:50:15   Camera1 Connected SBIG Camera Connected (set point -25°C)
16:50:18 Session Created Live Session Created (2021-12-13 S00941, ImageSaveNum: 941001)
16:50:27   Obs.Manager Started Obs.Manager started
16:50:29   Obs.Overseer Started Obs.Overseer started
16:50:33   Services Started Observatory Services started
16:55:41   Scope Switched On Telescope Power has been switched on via UPB Powerbox.
16:57:24   Services Started Observatory Services started
16:58:34   Telescope Connected Telescope Connected (TheSky6)
17:08:24   Dome Opened Dome opened (opening time 47s)
17:41:02 Observatory (Auto) Observatory placed in Fully-Automated Mode
17:41:05 Session Pending Session pending (2021-12-13)
17:41:07 Session Initiating Session initiating (2021-12-13)
17:41:09   Plan Requested Observing Plan requested from AstroPlan (1.29.1)
17:41:46   Plan Loaded Observing Plan loaded to queue (, Plan ID: 694)
17:41:59   Camera1 Connected SBIG Camera Connected (set point -20°C)
17:42:05   Telescope Connected Telescope Connected (TheSky6)
17:42:29 Session Equilibration Session ready for dome & camera equilibration
17:43:09 Session Running Session running
17:43:11   Queue Started Observing Queue started (46 targets selected)
17:43:14     Target Started (NrZen) Target started (Focus Field 23, HIP 113729)
17:44:20       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
17:47:11       Focusing Completed Foc1 AutoFocus Completed (Profile No 1, wide)
17:49:32       Focusing Completed Foc1 AutoFocus Completed (Profile No 1)
17:49:33       Focusing Started-Foc2 Foc2 Focusing Started (Secondary Scope, using ShCap)
17:51:44       Focusing Completed Foc2 AutoFocus Completed (Profile No 2, wide)
17:53:31       Focusing Completed Foc2 AutoFocus Completed (Profile No 2)
17:53:49     Target Completed Target completed (Focus Field 23, HIP 113729)
17:55:11     Target Started (1/46) Target started (1/46, WDS GRB 34)
17:57:42       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
17:59:53       Focusing Completed Foc1 AutoFocus Completed (Profile No 3)
18:02:02     Target Completed Target completed (1/46, WDS GRB 34)
18:03:26     Target Started (2/46) Target started (2/46, C/2017 K2 (PANSTARRS))
18:09:07       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
18:11:18       Focusing Completed Foc1 AutoFocus Completed (Profile No 4)
18:20:31     Target Completed Target completed (2/46, C/2017 K2 (PANSTARRS))
18:20:35     Target Started (3/46) Target started (3/46, KIC 8462852)
18:22:45       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
18:25:16       Focusing Completed Foc1 AutoFocus Completed (Profile No 5)
18:29:16     Target Completed Target completed (3/46, KIC 8462852)
18:29:20     Target Started (4/46) Target started (4/46, AT2021aegs (CV))
18:32:47       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
18:34:46       Focusing Completed Foc1 AutoFocus Completed (Profile No 6)
18:41:19     Target Completed Target completed (4/46, AT2021aegs (CV))
18:41:23     Target Started (5/46) Target started (5/46, GCVS EV Lac)
18:44:30       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
18:46:56       Focusing Completed Foc1 AutoFocus Completed (Profile No 7)
18:49:39     Target Completed Target completed (5/46, GCVS EV Lac)
18:49:43     Target Started (6/46) Target started (6/46, (2) Pallas)
18:55:55       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
18:57:54       Focusing Completed Foc1 AutoFocus Completed (Profile No 8)
19:01:25     Target Completed Target completed (6/46, (2) Pallas)
19:01:29     Target Started (7/46) Target started (7/46, M31 w/AT2021aaxp)
19:04:16       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
19:06:15       Focusing Completed Foc1 AutoFocus Completed (Profile No 9)
19:12:48     Target Completed Target completed (7/46, M31 w/AT2021aaxp)
19:12:52     Target Started (8/46) Target started (8/46, UGC 2605 w/SN2021wvw)
19:15:55       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
19:17:57       Focusing Completed Foc1 AutoFocus Completed (Profile No 10)
19:34:27     Target Completed Target completed (8/46, UGC 2605 w/SN2021wvw)
19:34:31     Target Started (9/46) Target started (9/46, GCVS SS Cyg)
19:37:35       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
19:39:48       Focusing Completed Foc1 AutoFocus Completed (Profile No 11)
19:44:45     Target Completed Target completed (9/46, GCVS SS Cyg)
19:46:38     Target Started (10/46) Target started (10/46, AT2021aemj (CV))
19:50:37       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
19:52:36       Focusing Completed Foc1 AutoFocus Completed (Profile No 12)
19:59:08     Target Completed Target completed (10/46, AT2021aemj (CV))
19:59:12     Target Started (11/46) Target started (11/46, Nova Cas 2021)
20:03:20       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
20:05:07       Focusing Completed Foc1 AutoFocus Completed (Profile No 13)
20:12:29     Target Completed Target completed (11/46, Nova Cas 2021)
20:12:33     Target Started (12/46) Target started (12/46, GCVS HH And)
20:15:17       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
20:17:30       Focusing Completed Foc1 AutoFocus Completed (Profile No 14)
20:19:38     Target Completed Target completed (12/46, GCVS HH And)
20:19:42     Target Started (13/46) Target started (13/46, NGC 7501 w/SN2021wyw)
20:24:16       Focusing Skipped Foc1 focusing skipped - star is lost (TCF-S)
20:41:35     Target Completed Target completed (13/46, NGC 7501 w/SN2021wyw)
20:41:39     Target Started (14/46) Target started (14/46, GCVS RX And)
20:43:48       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
20:45:58       Focusing Completed Foc1 AutoFocus Completed (Profile No 15)
20:49:22     Target Completed Target completed (14/46, GCVS RX And)
20:49:41     Target Started (15/46) Target started (15/46, NGC 1400 w/AT2021hcz)
20:54:52       Focusing Skipped Foc1 focusing skipped - unable to find a star (TCF-S)
21:11:18     Target Completed Target completed (15/46, NGC 1400 w/AT2021hcz)
21:11:33     Target Started (16/46) Target started (16/46, GCVS SU Tau)
21:14:04       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
21:16:31       Focusing Completed Foc1 AutoFocus Completed (Profile No 16)
21:21:32     Target Completed Target completed (16/46, GCVS SU Tau)
21:21:36     Target Started (17/46) Target started (17/46, UGC 1977 w/AT2021irz)
21:23:57       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
21:25:54       Focusing Completed Foc1 AutoFocus Completed (Profile No 17)
21:38:28   SoftSuspend Called Soft Suspend is called due to Deteriorating Conditions (too few stars)
21:43:27     Target Completed Target completed (17/46, UGC 1977 w/AT2021irz)
21:43:29   Queue Paused Queue paused for Session Suspension
21:43:31 Session Suspended Session suspended
21:44:18   Dome Closed Dome closed (closing time 50s)
21:57:41   Queue Aborted Job Queue aborted
21:58:00   Services Stopped Observatory Services stopped
21:58:06 Program Closed Program closed by User
21:59:06 Session Resumed Live Session Resumed (2021-12-13 S00941, ImageSaveNum: 941149)
21:59:13   Obs.Manager Started Obs.Manager started
21:59:15   Obs.Overseer Started Obs.Overseer started
21:59:19   Services Started Observatory Services started
22:00:42   Services Started Observatory Services started
22:00:57   Telescope Connected Telescope Connected (TheSky6)
22:04:13   Services Stopped Observatory Services stopped
22:04:16 Program Closed Program closed by User
22:04:55 Session Resumed Live Session Resumed (2021-12-13 S00941, ImageSaveNum: 941149)
22:05:02   Obs.Manager Started Obs.Manager started
22:05:04   Obs.Overseer Started Obs.Overseer started
22:05:07   Services Started Observatory Services started
22:06:30   Services Started Observatory Services started
22:07:00   Telescope Connected Telescope Connected (TheSky6)
22:23:07 Observatory (Auto) Observatory placed in Fully-Automated Mode
22:23:09 Session Pending Session pending (2021-12-13)
22:23:11 Session Initiating Session initiating (2021-12-13)
22:23:19   Plan Loaded Observing Plan loaded to queue (, Plan ID: 694)
22:23:35   Camera1 Connected SBIG Camera Connected (set point -20°C)
22:23:41   Telescope Connected Telescope Connected (TheSky6)
22:24:00 Session Equilibration Session ready for dome & camera equilibration
22:24:45   Dome Opened Dome opened (opening time 45s)
22:24:47 Session Running Session running
22:24:49   Queue Started Observing Queue started (28 targets selected)
22:24:51     Target Missed (19/46) Target's time slot was missed (19/46, UGC 1971 w/SN2021afkk)
22:27:35     Target Started (20/46) Target started (20/46, GCVS BL Lac)
22:30:18       Focusing Skipped Foc1 focusing skipped - star is lost (TCF-S)
22:34:34     Target Completed Target completed (20/46, GCVS BL Lac)
22:37:53     Target Started (21/46) Target started (21/46, AT2021axb)
22:41:25       Focusing Skipped Foc1 focusing skipped - star is lost (TCF-S)
22:57:57     Target Completed Target completed (21/46, AT2021axb)
22:59:45     Target Started (22/46) Target started (22/46, NGC 7446 w/SN2021agdd)
23:03:04       Focusing Skipped Foc1 focusing skipped - unable to find a star (TCF-S)
23:19:06     Target Completed Target completed (22/46, NGC 7446 w/SN2021agdd)
23:21:37     Target Started (23/46) Target started (23/46, 132P/Helin-Roman-Alu)
23:26:45       Focusing Skipped Foc1 focusing skipped - unable to find a star (TCF-S)
23:35:14     Target Completed Target completed (23/46, 132P/Helin-Roman-Alu)
23:36:03     Target Started (24/46) Target started (24/46, GCVS X TRI)
23:40:33       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
23:42:50       Focusing Completed Foc1 AutoFocus Completed (Profile No 21)
23:43:59   SoftSuspend Called Soft Suspend is called due to Deteriorating Conditions (too few stars)
23:48:32     Target Completed Target partially completed (24/46, GCVS X TRI)
23:48:35   Queue Aborted Job Queue aborted
23:48:59 User Intervention User request to close and finish session
23:49:01 Session Closing Session closing
23:49:49   Dome Closed Dome closed (closing time 50s)
23:51:12   Dome Parked Dome parked (parking time 76s), Az: 90.0 deg
23:52:24   Telescope Parked Telescope parked (parking time 69s)
23:52:39   Telescope State Scope parked Turn scope off. (Handbox)
23:52:59   Telescope Switched Off Telescope Power has been switched off via UPB Switch.
23:53:51   Services Stopped Night Services stopped
23:53:53 Session Housekeeping Housekeeping Started (Cleanup FITS, Create Fits Summary, Transfer Files)
23:54:15 Session Finished Session Finished
 
Session Alerts
Time     Alert Detail
18:29:58 Dome Discrepency Difference between Telescope Az and Dome Az is > 8 deg (AT2021aegs)

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Operational Issues (2021-12-13, S941)

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Critical Issues

Major Issues

Minor Issues

Small Defects

Continuous Improvement

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DeviceHub 6.5.1.8

A new version of DeviceHub was installed on observatory computer today (2021-12-14).  This contains a fix for an annoying issue which causing telescope slews to fail after connecting to a newly powered up LX200 Scope when DeviceHub GUI had remained open since previous session at the end of which the telescope had been parked and powered off.

The changes in 6.5.1.8 are

https://github.com/ASCOMInitiative/ASCOMDeviceHub/releases

Results
DeviceHub 6.5.1.8 was successfully used in session S941 (2021-12-13).

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DeviceHub 6.5.1.9 (2021-12-14)

A new version of DeviceHub was released today (2021-12-14) and installed on observatory computer.  This contains a supplementary fix for the SideOfPier issue that was investigated recently follow guiding problems in session S940 (2021-12-10). See Investigation - Guiding Runaway (SideOfPier Issue), 2021-12-10  . The principal fix was made in a development release of the MeadeGeneric driver (v1.3.3.370) which was successfully tested in  Session S941 (2021-12-13).

The changes in 6.5.1.9 are

https://github.com/ASCOMInitiative/ASCOMDeviceHub/releases

Results
DeviceHub 6.5.1.9 was successfully used in the S942 (2021-12-16).

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