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 Notes - Session 904 (2021-08-09)

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Bullet Session Aims & Highlights
 - Observing Result
 - Night Summary Plot
 - Session Event Log
 
Bullet Operational Issues
  - Critical Issues (0),  Major Issues (0),  Minor Issues (3),  Small Defects (0),  Continuous Improvement (0)
 
Bullet Images from 2021-08-09 >>      [ Local Files >> ]
Bullet PHD2 Update 2.6.10
Bullet Slew Data (Target 12/17, AT2021hkn)

Session Aims & Highlights (2021-08-09)

Main aims

  1. Targets. Acquire images of a selection of variable stars, nearby stars, comets & deep sky targets as allowed by time & conditions

Equipment & Software

Highlights

Lowlights

Notes:

AutoStart Monitoring                    2021-08-08 22:14  (Local)
  AutoStart Reference:        Info      2021-08-08 22:40  (Local, Sun Altitude -10.2 degs)
  AutoStart Window:           Info      2021-08-08 22:14  (Local, Earliest Start)
                              Info      2021-08-09 03:17  (Local, Latest Start)
  Delaying AutoStart...       Info      Unable to begin AutoStart at 22:14 due to high humidity
  Waiting...                  Info      Waiting till conditions are fully suitable for observing

  AutoStart Check             Ok        Conditions at 01:08 are suitable for starting an observing session
  Starting AutoStart...       Info      Starting AutoStart at 01:08

Session Equilibration                   2021-08-09 01:12  (Local)       Atcual 01:08 
  Now                         Info      2021-08-09 01:12  ( -19 mins )
  Expected Shutter Opening    Info      2021-08-09 01:12  ( -19 mins )  Actual 01:13  (0 min)
  Expected Equilbrat'n Start  Info      2021-08-09 01:13  ( -18 mins )  Actual 01:13  (0 min)
  Expected Run Start          Info      2021-08-09 01:14  ( -17 mins )  Actual 01:14  (0 min)
  Expected Near-Zenith Foc1   Info      2021-08-09 01:15  ( -16 mins )  Actual 01:14  (-1 min)
  Expected Near-Zenith Foc2   Info      2021-08-09 01:23  (  -8 mins )  Actual 01:18  (-5 min)
  Expected Queue Start        Info      2021-08-09 01:29  (  -2 mins )  Suspended 01:19 (-10 min)
  Plan Queue Start            Info      2021-08-09 01:31  ( On Track )  Suspended 01:19 (-12 min)


Summary Plots & Logs

Observing Plan
Image
  
Observing Result
Image
   
Dome & Scope Slewing Performance
 Anomalous straight-line scope paths are due to an apparent bug in LX200 / Telescope Driver
Image
  
Slew/Centering Performance
Image
  
Guiding Performance
Image
Image
  
Sky Conditions (Locate Frames)
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
23:28:33 Session Monitoring AutoStart monitoring for Live Session opportunity between 23:28 & 03:21
23:28:35 Session AutoStarting Session autostarting (23:28)
23:29:15 Session Created Live Session Created (2021-08-09 S00904, ImageSaveNum: 904001)
23:29:18   Scope Switched On Telescope Power has been switched on via UPB Powerbox.
23:30:57   Services Started Observatory Services started
23:31:05 Observatory (Auto) Observatory placed in Fully-Automated Mode
23:31:07 Session Pending Session pending (2021-08-09)
23:31:09 Session Initiating Session initiating (2021-08-09)
23:31:11   Plan Requested Observing Plan requested from AstroPlan (1.22.4)
23:32:00   Plan Loaded Observing Plan loaded to queue (, Plan ID: 644)
23:32:12   Camera1 Connected SBIG Camera Connected (set point -10°C)
23:32:18   Telescope Connected Telescope Connected (TheSky6)
23:32:30 Session Equilibration Session ready for dome & camera equilibration
23:33:15   Dome Opened Dome opened (opening time 45s)
23:34:05 Session Running Session running
23:34:08   Queue Started Observing Queue started (17 targets selected)
23:34:10     Target Started (NrZen) Target started (Focus Field 20, HIP 98535)
23:35:23       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
23:38:31       Focusing Completed Foc1 AutoFocus Completed (Profile No 1, wide)
23:40:22       Focusing Completed Foc1 AutoFocus Completed (Profile No 1)
23:40:25       Focusing Started-Foc2 Foc2 Focusing Started (Secondary Scope, using ShCap)
23:42:43       Focusing Completed Foc2 AutoFocus Completed (Profile No 2, wide)
23:44:26       Focusing Completed Foc2 AutoFocus Completed (Profile No 2)
23:44:45     Target Completed Target completed (Focus Field 20, HIP 98535)
23:46:05     Target Started (1/17) Target started (1/17, GCVS S Cyg)
23:51:21       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
23:53:02       Focusing Completed Foc1 AutoFocus Completed (Profile No 3)
00:02:51     Target Completed Target completed (1/17, GCVS S Cyg)
00:02:53     Target Started (2/17) Target started (2/17, KIC 8462852)
00:06:33 Critical Cloud Alert Critical Cloud Alert (Obs.Manager will close the Shutter)
00:06:35   HardSuspend Called Hard Suspend is called due to Critical Conditions (cloud)
00:06:40     Target Aborted (2/17) Target aborted (2/17, KIC 8462852) due to cloud
00:06:42   Queue Paused Queue paused for Session Suspension
00:06:44 Session Suspended Session suspended
00:07:33   Dome Closed Dome closed (closing time 49s)
00:10:12     Target Cancelled Target cancelled (2/17, KIC 8462852) due to cloud
00:13:13 Session Resuming Session resuming
00:13:58   Dome Opened Dome opened (opening time 45s)
00:14:01 Session Running Session running
00:14:03     Target Started (3/17) Target started (3/17, UGC 12188 w/SN2021ucg)
00:14:05   Queue Resumed Observing Queue resumed
00:16:44   SoftSuspend Called Soft Suspend is called due to Deteriorating Conditions (reducing clarity)
00:17:43       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
00:18:14   SoftSuspend Cancelled Soft Suspend is cancelled due to Improved Conditions
00:18:16 Critical Cloud Alert Critical Cloud Alert (Obs.Manager will close the Shutter)
00:18:18   HardSuspend Called Hard Suspend is called due to Critical Conditions (cloud)
00:18:20       Focusing Aborted Foc1 Focusing Aborted
00:18:22     Target Aborted (3/17) Target aborted (3/17, UGC 12188 w/SN2021ucg) due to cloud
00:18:24   Queue Paused Queue paused for Session Suspension
00:18:26 Session Suspended Session suspended
00:19:09   Dome Closed Dome closed (closing time 49s)
00:30:04     Target Cancelled Target cancelled (3/17, UGC 12188 w/SN2021ucg) due to cloud
00:41:38     Target Cancelled Target cancelled (4/17, GCVS Z And) due to cloud
01:01:15     Target Cancelled Target cancelled (5/17, M31 w/AT2021urk) due to cloud
01:13:33     Target Cancelled Target cancelled (6/17, GCVS BL Lac) due to cloud
01:33:25     Target Cancelled Target cancelled (7/17, SN 2021gmh) due to cloud
01:51:21     Target Cancelled Target cancelled (8/17, GCVS SS Cyg) due to cloud
01:58:38     Target Cancelled Target cancelled (9/17, 61 Cyg) due to cloud
02:07:20     Target Cancelled Target cancelled (10/17, GCVS EV Lac) due to cloud
02:26:22     Target Cancelled Target cancelled (11/17, UGC 505 w/SN2021ukt) due to cloud
02:28:46 Session Resuming Session resuming
02:29:31   Dome Opened Dome opened (opening time 45s)
02:29:33 Session Running Session running
02:29:35     Target Started (12/17) Target started (12/17, AT2021hkn)
02:29:37   Queue Resumed Observing Queue resumed
02:31:41   SoftSuspend Called Soft Suspend is called due to Deteriorating Conditions (reducing clarity)
02:32:26   SoftSuspend Cancelled Soft Suspend is cancelled due to Improved Conditions
02:33:07       Focusing Started-Foc1 Foc1 Focusing Started (TCF-S)
02:34:49       Focusing Completed Foc1 AutoFocus Completed (Profile No 5)
02:40:31     Target Completed Target completed (12/17, AT2021hkn)
02:40:34 Critical Cloud Alert Critical Cloud Alert (Obs.Manager will close the Shutter)
02:40:36   HardSuspend Called Hard Suspend is called due to Critical Conditions (cloud)
02:40:38   Queue Paused Queue pausing for Session Suspension
02:40:40 Session Suspended Session suspended
02:41:27   Dome Closed Dome closed (closing time 50s)
02:43:12 Session Resuming Session resuming
02:43:57   Dome Opened Dome opened (opening time 45s)
02:43:59 Session Running Session running
02:44:01     Target Started (13/17) Target started (13/17, GCVS HH And)
02:44:03   Queue Resumed Observing Queue resumed
02:46:22 Critical Cloud Alert Critical Cloud Alert (Obs.Manager will close the Shutter)
02:46:24   HardSuspend Called Hard Suspend is called due to Critical Conditions (cloud)
02:46:32     Target Aborted (13/17) Target aborted (13/17, GCVS HH And) due to cloud
02:46:34   Queue Paused Queue paused for Session Suspension
02:46:36 Session Suspended Session suspended
02:47:23   Dome Closed Dome closed (closing time 50s)
02:49:54     Target Cancelled Target cancelled (13/17, GCVS HH And) due to cloud
03:03:21     Target Cancelled Target cancelled (14/17, Nova Per 2020 (CV)) due to cloud
03:13:01     Target Cancelled Target cancelled (15/17, WDS GRB 34) due to cloud
03:21:16     Target Cancelled Target cancelled (16/17, GCVS RX And) due to cloud
03:41:59     Target Cancelled Target cancelled (17/17, GSC 1224:29) due to cloud
03:42:04   Queue Completed Job Queue completed
03:42:08 Session Closing Session closing
03:42:13   Dome Closed Dome already closed (closed at 02:47, closing time 50s)
03:42:54   Dome Parked Dome parked (parking time 33s), Az: 90.0 deg
03:43:59   Telescope Parked Telescope parked (parking time 59s)
03:44:15   Telescope State Scope parked Turn scope off. (Handbox)
03:44:35   Telescope Switched Off Telescope Power has been switched off via UPB Switch.
03:45:24   Services Stopped Night Services stopped
03:45:26 Session Housekeeping Housekeeping Started (Cleanup FITS, Create Fits Summary, Transfer Files)
03:45:33 Session Finished Session Finished
 
 
Session Alerts
Time     Alert Detail
23:47:26 Dome Discrepency Difference between Telescope Az and Dome Az is > 8 deg (GCVS S Cyg)
02:31:00 Dome Discrepency Difference between Telescope Az and Dome Az is > 8 deg (AT2021hkn)
 

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Operational Issues (2021-08-09, S904)

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Critical Issues

Major Issues

Minor Issues

Small Defects

Continuous Improvement

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PHD2 Update 2.6.10

PHD2 application was updated on Observatory and Development Computers today (2021-08-09) with the new 2.6.10 version (dated 26 Jun 2021).   This version consolidates various additions, improvements and fixes in earlier 2.6.9 development snapshots (2.6.9Dev1 to 2.6.9Dev5).

PHD2 Development Snapshots - https://openphdguiding.org/development-snapshots/

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Slew Data (Target 12/17, AT2021hkn)

Slew Data for Target 12/17 (AT2021hkn / Nova Cas 2021, 02:29:32 to 02:29:59) is listed below.  This was used to demonstrate an issue with RA values reported by scope during slewing.

02:29:32.04 | Time: 0.0,  Az: 116.18, Alt: 62.78, Angular Change: 0.000  116/62
02:29:33.57 | Time: 1.5,  Az: 116.17, Alt: 62.77, Angular Change: 0.010  116/62
02:29:35.27 | Time: 3.2,  Az: 110.08, Alt: 60.32, Angular Change: 3.799  112 / 65
02:29:36.07 | Time: 4.0,  Az:  50.92, Alt: 26.29, Angular Change: 52.243  107/70, 
02:29:36.88 | Time: 4.8,  Az: 350.92, Alt: 15.65, Angular Change: 56.554  99 / 76
02:29:37.89 | Time: 5.9,  Az: 302.41, Alt: 44.29, Angular Change: 49.839  99 / 76
02:29:39.72 | Time: 7.7,  Az: 280.61, Alt: 77.49, Angular Change: 34.347  106 / 78
02:29:41.34 | Time: 9.3,  Az:  56.07, Alt: 82.46, Angular Change: 18.644   58 / 82
02:29:42.29 | Time: 10.3, Az:  54.67, Alt: 82.96, Angular Change: 0.524    52 /82
02:29:43.31 | Time: 11.3, Az:  52.62, Alt: 83.22, Angular Change: 0.358    53/82
02:29:44.32 | Time: 12.3, Az:  52.51, Alt: 83.05, Angular Change: 0.167
02:29:45.24 | Time: 13.2, Az:  52.98, Alt: 82.85, Angular Change: 0.211
02:29:46.21 | Time: 14.2, Az:  53.18, Alt: 82.76, Angular Change: 0.099
02:29:48.03 | Time: 16.0, Az:  53.56, Alt: 82.64, Angular Change: 0.135
02:29:48.78 | Time: 16.7, Az:  53.50, Alt: 82.65, Angular Change: 0.014
02:29:50.81 | Time: 18.8, Az:  53.46, Alt: 82.66, Angular Change: 0.008
02:29:51.48 | Time: 19.4, Az:  53.45, Alt: 82.66, Angular Change: 0.002
02:29:52.50 | Time: 20.5, Az:  53.44, Alt: 82.67, Angular Change: 0.002
02:29:56.10 | Time: 24.1, Az:  53.44, Alt: 82.67, Angular Change: 0.002

During Target 12/17 slew  (02:29:32 to 02:29:59) RA,Dec values sent to AstroMain client from DeviceHub Telescope were as follows:

Time            RA
02:29:32.046  00:45:41
02:29:33.573  00:45:44
02:29:35.200  01:05:30
02:29:36.011  05:51:44
02:29:36.822  11:28:52
02:29:37.836  16:57:06
02:29:39.661  21:03:21
02:29:41.284  23:28:31
02:29:42.298  23:24:13
02:29:43.312  23:21:24
02:29:44.326  23:22:34
02:29:45.137  23:24:17
02:29:46.151  23:25:05
02:29:47.976  23:26:12
02:29:48.787  23:26:05
02:29:50.613  23:26:01
02:29:51.424  23:26:00
02:29:52.438  23:25:59
02:29:55.277  23:26:02
02:29:56.088  23:26:03
02:29:59.134  23:26:04

Time             Dec
02:29:32.046  39 45' 22"
02:29:36.011  42 40' 45"
02:29:36.822  47 46' 01"
02:29:37.836  52 39' 03"
02:29:39.661  57 29' 05"
02:29:41.284  60 55' 15"
02:29:42.298  60 52' 55"
02:29:43.312  60 59' 09"
02:29:44.326  61 04' 29"
02:29:45.137  61 06' 55"
02:29:46.151  61 08' 06"
02:29:47.976  61 08' 44"
02:29:59.134  61 08' 49"

Meade Generic

02:29:33.029 00:45:44 convert to 0.762222222222222 00:45:44
02:29:33.657 00:45:44 convert to 0.762222222222222 00:45:44
02:29:34.794 01:05:30 convert to 1.09166666666667 01:05:30
02:29:35.683 05:51:44 convert to 5.86222222222222 05:51:44
02:29:36.573 11:28:52 convert to 11.4811111111111 11:28:52
02:29:37.509 16:57:06 convert to 16.9516666666667 16:57:06
02:29:39.131 21:03:21 convert to 21.0558333333333 21:03:21
02:29:40.691 23:28:31 convert to 23.4752777777778 23:28:31
02:29:41.970 23:24:13 convert to 23.4036111111111 23:24:13
02:29:42.953 23:21:24 convert to 23.3566666666667 23:21:24
02:29:43.905 23:22:34 convert to 23.3761111111111 23:22:34
02:29:44.856 23:24:17 convert to 23.4047222222222 23:24:17
02:29:45.683 23:25:05 convert to 23.4180555555556 23:25:05
02:29:46.307 23:25:05 convert to 23.4180555555556 23:25:05
02:29:47.617 23:26:12 convert to 23.4366666666667 23:26:12
02:29:48.491 23:26:05 convert to 23.4347222222222 23:26:05
02:29:49.380 23:26:05 convert to 23.4347222222222 23:26:05
02:29:50.285 23:26:01 convert to 23.4336111111111 23:26:01
02:29:51.159 23:26:00 convert to 23.4333333333333 23:26:00
02:29:52.048 23:25:59 convert to 23.4330555555556 23:25:59
02:29:52.828 23:25:59 convert to 23.4330555555556 23:25:59
02:29:53.109 23:25:59 convert to 23.4330555555556 23:25:59
02:29:54.981 23:26:02 convert to 23.4338888888889 23:26:02
02:29:55.714 23:26:03 convert to 23.4341666666667 23:26:03
02:29:58.729 23:26:04 convert to 23.4344444444444 23:26:04

02:29:32.951 +39 45:22 convert to 39.7561111111111 39:45:22"
02:29:33.577 +39 45:22 convert to 39.7561111111111 39:45:22"
02:29:34.747 +39 45:22 convert to 39.7561111111111 39:45:22"
02:29:35.605 +42 40:45 convert to 42.6791666666667 42:40:45"
02:29:36.510 +47 46:01 convert to 47.7669444444444 47:46:01"
02:29:37.399 +52 39:03 convert to 52.6508333333333 52:39:03"
02:29:38.944 +57 29:05 convert to 57.4847222222222 57:29:05"
02:29:40.285 +60 55:15 convert to 60.9208333333333 60:55:15"
02:29:41.845 +60 52:55 convert to 60.8819444444444 60:52:55"
02:29:42.906 +60 59:09 convert to 60.9858333333333 60:59:09"
02:29:43.842 +61 04:29 convert to 61.0747222222222 61:04:29"
02:29:44.825 +61 06:55 convert to 61.1152777777778 61:06:55"
02:29:45.605 +61 08:06 convert to 61.135 61:08:06"
02:29:46.229 +61 08:06 convert to 61.135 61:08:06"
02:29:47.586 +61 08:44 convert to 61.1455555555556 61:08:44"
02:29:48.460 +61 08:44 convert to 61.1455555555556 61:08:44"
02:29:49.333 +61 08:44 convert to 61.1455555555556 61:08:44"
02:29:50.238 +61 08:44 convert to 61.1455555555556 61:08:44"
02:29:51.127 +61 08:44 convert to 61.1455555555556 61:08:44"
02:29:52.017 +61 08:44 convert to 61.1455555555556 61:08:44"
02:29:52.797 +61 08:44 convert to 61.1455555555556 61:08:44"
02:29:53.077 +61 08:44 convert to 61.1455555555556 61:08:44"
02:29:54.934 +61 08:44 convert to 61.1455555555556 61:08:44"
02:29:55.667 +61 08:44 convert to 61.1455555555556 61:08:44"
02:29:58.666 +61 08:49 convert to 61.1469444444444 61:08:49"

Azimuth shows expected progression :

02:29:32.889 Azimuth 116.135833333333
02:29:34.701 Azimuth 116.139444444444
02:29:36.401 Azimuth 107.763888888889
02:29:37.290 Azimuth 99.9022222222222
02:29:38.382 Azimuth 106.613611111111
02:29:40.005 Azimuth 58.2883333333333
02:29:41.767 Azimuth 52.1472222222222
02:29:42.719 Azimuth 52.5538888888889
02:29:43.702 Azimuth 53.1025
02:29:44.638 Azimuth 53.4155555555556
02:29:45.558 Azimuth 53.5963888888889
02:29:46.167 Azimuth 53.6391666666667
02:29:48.366 Azimuth 53.5977777777778
02:29:49.255 Azimuth 53.5472222222222
02:29:50.145 Azimuth 53.5097222222222
02:29:51.018 Azimuth 53.4913888888889
02:29:51.861 Azimuth 53.4905555555556
02:29:52.765 Azimuth 53.4927777777778
02:29:54.887 Azimuth 53.4872222222222
02:29:58.635 Azimuth 53.4675

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This Web Page: Notes - Session 904 (2021-08-09)
Last Updated : 2024-03-23
Site Owner : David Richards
Home Page : David's Astronomy Web Site