David's Astronomy - Notes 2024-12-05 (S1279)

David's Astronomy Pages
Notes - Session 1279 (2024-12-05)

Notes
(S1278)

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Notes
(S1280)

	2024-12-07

	Session Aims & Highlights
	- Observing Result - Night Summary Plot - Session Event Log

	Operational Issues
	- Critical Issues (0), Major Issues (0), Minor Issues (1), Small Defects (6), Continuous Improvement (23)

	Images from 2024-12-05 >>

	Uninterruptible Power Supply (UPS) for the AllSky/Weather Computing Bay
	Updated UPS / Power Configuration in Observatory Computing Bay

Session Aims & Highlights (2024-12-05)

Main aims

Targets. Acquire images of a selection of variable stars, nearby stars, comets & deep sky targets as allowed by sky conditions.
Dome Slewing. Check dome slewing performance following adjustment to rotation driver tension on 2024-11-28.
Slaved Dome Behaviour. Confirm previous successful daylight tests that earlier issue involving occasional dome slewing anomalies (when Report Composite Slewing is disabled) have been solved by combination of driver & software updates (MeadeGeneric 1.3.11 and DeviceHub 7.0.3-RC2)

Equipment & Software

12" LX200 and ST-10XME
80mm APO and ZWO ASI 178MC
TheSky6, CCDSoft5, DeviceHub 7.0.3 RC2.4692, MeadeGeneric 1.3.11.512 , UPB 1.5, ASCOM 7.0.3 RC2, Pulsar Dome Firmware 1.51 & Driver 6.3.10
Pegasus UPB & Motor Focus, TCF-S 6.0.6
SharpCap 3.2, PHD2 2.6.13, Siril 1.0.6, deCONZ 1.18.2, ASCOM 7.0.3 RC2
[ DomeLink 1.0 / 1.1 - not used ]
AstroMain 3.73.5, AstroPlan 1.42.5 AstroShCap 1.3.15, AstroGuard 1.10.6 (any new items or versions in bold)
AstroVOE 1.15.1, AstroSN 1.14, AstroProtect 1.7, AstroMove 1.13.4
AstroWeather 1.26.6, AstroAllSky 3.21.7, AstroObsCam 1.11.4 (not 1.11.5), AstroColorCam 1.0.14, AstroLaunch 1.11.10

Highlights

Targets. 19/20 planned targets observations were completed with one further target partially completed. One ToO target (Jupiter) was also completed.
Dome Slewing. There were no hold-ups during dome slewing, the session was very short (1 hour) and with only 5 slews made it is not yet confirmed that the issue with dome slew hold-ups has been resolved.
Slaved Dome Behaviour. Confirm earlier issue with occasional dome slewing anomalies have been solved through a combination of driver/software updates (MeadeGeneric 1.3.11 and DeviceHub 7.0.3-RC2)
Dome. There was no issues opening/closing the shutter during session. Dome closed and parked at end of session Ok

Notes

Telescope's Primary Mirror was refocussed at a final position corresponding to TCF-S best focus at around position 2780.

This resolves issue in session S1278 where shifts in primary mirror led to best focus position falling to 400-500, which is dangerously close to the lower limit of the focuser's 0-7000 range and makes autofocusing difficult or unreliable / impossible.

The task of adjusting the primary mirror was complicated because of CCDSoft Camera Issue and the absence of a working Focus Lock on the LX2000. Attempts where made to focus the primary mirror at a position corresponding to a TCF-S focuser position at 4000 and then around 3500. On the first attempt the mirror quickly relaxed from 4000 to a position at around 6500. On the second attempt the mirror relaxed from 3500 to a position at 3127 on the first Focus Profile before it relaxed again to a position at 2736 - 2799 during the live session.

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)

Actual Weather vs Pre-Session Weather Forecast

Session Event Log

Time	Event	Detail
22:43:55	CCDSoft Restarting	CCDSoft being restarted (to set AutoSave No.)
22:44:08	Session Created	Session Created (Live, 2024-12-05 S01279, ImageSaveNum: 1279001)
22:44:42	Scope Switched On	Telescope Power has been switched on via UPB Powerbox.
22:46:40	Services Started	Observatory Services started
22:47:02	Dome Unparked	Dome unparked
22:47:59	Telescope Connected	Telescope connected (TheSky6)
22:50:07	Camera1 Connected	SBIG Camera connected (Set point -20°C)
22:50:40	CcdCamera Frozen	CcdCamera appears to be frozen at around 22:50 in section 'GetCameraProperties / State'
22:50:55	Dome Opened	Dome opened (Opening time 43s, Zigbee 40s)
22:51:16	CCDSoft Restarting	CCDSoft being restarted (attempt to fix frozen CcdCamera)
22:51:23	SBIG Camera Reset	SBIG Camera being power-cycled
22:52:17	Camera1 Connected	SBIG Camera connected (Set point -20°C)
22:53:30	CcdCamera Frozen	CcdCamera appears to be frozen at around 22:53 in section 'GetCameraProperties / Status'
22:54:07	CCDSoft Restarting	CCDSoft being restarted (attempt to fix frozen CcdCamera)
22:54:14	SBIG Camera Reset	SBIG Camera being power-cycled
22:55:07	Camera1 Connected	SBIG Camera connected (Set point -20°C)
22:59:44	Observatory Door	Observatory Door has opened
22:59:51	Observatory Door	Observatory Door has closed (open time 7s)
23:07:53	CCDSoft Restarting	CCDSoft being restarted (user action)
23:08:00	SBIG Camera Reset	SBIG Camera being power-cycled
23:08:54	Camera1 Connected	SBIG Camera connected (Set point -20°C)
23:10:08	Services Stopped	Observatory Services stopped
23:10:11	Session Closed	Session closed by User
23:10:14	Program Closed	Program closed by User
23:11:40	Program Opened	Program Opened (AstroMain 3.73.5)
23:11:42	Session Resumed	Session Resumed (Live, 2024-12-05 S01279, ImageSaveNum: 1279001)
23:11:45	Obs.Overseer Started	Obs.Overseer started
23:12:06	Obs.Manager Started	Obs.Manager started
23:12:15	Services Started	Observatory Services started
23:13:42	Services Started	Observatory Services started
23:19:01	Services Stopped	Observatory Services stopped
23:19:06	Session Closed	Session closed by User
23:19:09	Program Closed	Program closed by User
23:19:23	Program Opened	Program Opened (AstroMain 3.73.5)
23:19:25	Session Resumed	Session Resumed (Live, 2024-12-05 S01279, ImageSaveNum: 1279001)
23:19:29	Obs.Overseer Started	Obs.Overseer started
23:21:10	Obs.Manager Started	Obs.Manager started
23:21:20	Services Started	Observatory Services started
23:21:45	Camera1 Connected	SBIG Camera connected (Set point -20°C)
23:22:04	Telescope Connected	Telescope connected (TheSky6)
23:23:08	CcdCamera Frozen	CcdCamera appears to be frozen at around 23:23 in section 'GetCameraProperties / Temperature'
23:23:41	CCDSoft Restarting	CCDSoft being restarted (attempt to fix frozen CcdCamera)
23:23:49	SBIG Camera Reset	SBIG Camera being power-cycled
23:24:42	Camera1 Connected	SBIG Camera connected (Set point -20°C)
23:24:43	CcdCamera Frozen	CcdCamera appears to be frozen at around 23:24 in section 'SetCameraProperties / AutoSavePath'
23:25:36	CCDSoft Restarting	CCDSoft being restarted (user action)
23:26:37	CCDSoft Restarting	CCDSoft being restarted (user action)
23:26:41	SBIG Camera Reset	SBIG Camera being power-cycled
23:27:35	Camera1 Connected	SBIG Camera connected (Set point -20°C)
23:29:09	Focusing Started-Foc1	Foc1 Focusing Started (TCF-S)
23:30:05	Focusing Aborted	Foc1 Focusing Aborted
23:32:20	Observatory Door	Observatory Door has opened
23:32:24	Observatory Door	Observatory Door has closed (open time 4s)
23:32:31	Observatory Door	Observatory Door has opened
23:32:49	Observatory Door	Observatory Door has closed (open time 19s)
23:36:37	Camera1 Connected	SBIG Camera connected (Set point -20°C)
23:37:09	Camera1 Connected	SBIG Camera connected (Set point -20°C)
23:37:36	CCDSoft Restarting	CCDSoft being restarted (user action)
23:37:43	SBIG Camera Reset	SBIG Camera being power-cycled
23:38:37	Camera1 Connected	SBIG Camera connected (Set point -20°C)
23:41:53	Dome Closed	Dome closed (Closing time 49s, Zigbee 43s)
23:44:05	CCDSoft Restarting	CCDSoft being restarted (user action)
23:44:09	SBIG Camera Reset	SBIG Camera being power-cycled
23:45:02	Camera1 Connected	SBIG Camera connected (Set point -20°C)
23:46:43	CCDSoft Restarting	CCDSoft being restarted (user action)
23:46:50	SBIG Camera Reset	SBIG Camera being power-cycled
23:47:43	Camera1 Connected	SBIG Camera connected (Set point -20°C)
23:49:13	CCDSoft Restarting	CCDSoft being restarted (user action)
23:49:20	SBIG Camera Reset	SBIG Camera being power-cycled
23:50:13	Camera1 Connected	SBIG Camera connected (Set point -20°C)
23:50:59	Camera1 Connected	SBIG Camera connected (Set point -20°C)
23:53:05	Dome Opened	Dome opened (Opening time 47s, Zigbee 40s)
23:53:32	Focusing Started-Foc1	Foc1 Focusing Started (TCF-S)
23:54:51	Focusing Aborted	Foc1 Focusing Aborted
23:55:40	Focusing Started-Foc1	Foc1 Focusing Started (TCF-S)
23:56:27	Focusing Aborted	Foc1 Focusing Aborted
00:00:22	Observatory Door	Observatory Door has opened
00:00:29	Observatory Door	Observatory Door has closed (open time 7s)
00:03:38	Focusing Started-Foc1	Foc1 Focusing Started (TCF-S)
00:05:44	Focusing Failed	Foc1 focusing failed (failed QC check - Quadratic)
00:06:34	Focusing Started-Foc1	Foc1 Focusing Started (TCF-S)
00:08:57	Focusing Completed	Foc1 AutoFocus Completed (Profile No 5)
00:09:14	Session Monitoring	AutoStart monitoring for Live Session opportunity between 00:09 & 06:12
00:09:16	Observatory (AutoStart)	Observatory placed in Auto-Start Mode
00:09:19	Session AutoStarting	Session autostarting (00:09)
00:09:28	Services Started	Observatory Services started
00:09:33	Observatory (Auto)	Observatory placed in Fully-Automated Mode
00:09:36	Observatory Door	Observatory Door has opened
00:09:38	Session Pending	Session pending (2024-12-05)
00:09:40	Observatory Door	Observatory Door has closed (open time 4s)
00:09:42	Session Initiating	Session initiating (2024-12-05)
00:09:48	Camera1 Connected	SBIG Camera connected (Set point -20°C)
00:09:55	Plan Requested	Observing Plan requested from AstroPlan (1.42.5)
00:11:05	Plan Loaded	Observing Plan loaded to queue (Plan ID: 1062)
00:11:15	Telescope Connected	Telescope connected (TheSky6)
00:11:57	Session Running	Session running
00:12:00	Queue Started	Observing Queue started (20 targets selected)
00:12:02	Target Started (NrZen)	Target started (Focus Field 6, HIP 28634)
00:14:31	Focusing Started-Foc2	Foc2 Focusing Started (Secondary Scope, using ShCap)
00:16:40	Focusing Completed	Foc2 AutoFocus Completed (Profile No 6, wide)
00:18:31	Focusing Completed	Foc2 AutoFocus Completed (Profile No 6)
00:18:52	Target Completed (NrZen)	Target completed (Focus Field 6, HIP 28634)
00:18:56	Target Started (1/20)	Target started (1/20, UGCA 109)
00:22:51	Focusing Skipped	Foc1 focusing skipped - star is too dim (TCF-S)
00:39:46	Target Completed	Target completed (1/20, UGCA 109)
00:39:50	Target Started (2/20)	Target started (2/20, AT2024sje)
00:43:47	Focusing Started-Foc1	Foc1 Focusing Started (TCF-S)
00:46:18	Focusing Completed	Foc1 AutoFocus Completed (Profile No 7)
01:02:19	Target Completed	Target completed (2/20, AT2024sje)
01:02:23	Target Started (3/20)	Target started (3/20, GCVS SU Tau)
01:05:52	Focusing Started-Foc1	Foc1 Focusing Started (TCF-S)
01:08:32	Focusing Completed	Foc1 AutoFocus Completed (Profile No 8)
01:13:21	Target Completed	Target completed (3/20, GCVS SU Tau)
01:13:25	Target Started (4/21)	Target started (4/21, Jupiter, ToO)
01:23:56	Target Completed	Target completed (4/21, Jupiter, ToO)
01:24:00	Target Started (5/21)	Target started (5/21, UGCA 128)
01:37:06	Target Completed	Target partially completed (5/21, UGCA 128)
01:37:10	Target Started (6/21)	Target started (6/21, SN 2023tsz)
01:40:43	Focusing Skipped	Foc1 focusing skipped - star is too dim (TCF-S)
01:56:45	Target Completed	Target completed (6/21, SN 2023tsz)
01:56:59	Target Started (7/21)	Target started (7/21, SN 2022yeg)
02:00:19	Focusing Skipped	Foc1 focusing skipped - star is too dim (TCF-S)
02:16:34	Target Completed	Target completed (7/21, SN 2022yeg)
02:19:19	Target Started (8/21)	Target started (8/21, AT2024vjw)
02:22:46	Focusing Started-Foc1	Foc1 Focusing Started (TCF-S)
02:25:46	Focusing Completed	Foc1 AutoFocus Completed (Profile No 9)
02:42:44	Target Completed	Target completed (8/21, AT2024vjw)
02:42:48	Target Started (9/21)	Target started (9/21, GCVS RZ LMi)
02:46:38	Focusing Started-Foc1	Foc1 Focusing Started (TCF-S)
02:49:08	Focusing Completed	Foc1 AutoFocus Completed (Profile No 10)
02:54:38	Target Completed	Target completed (9/21, GCVS RZ LMi)
02:54:42	Target Started (10/21)	Target started (10/21, GCVS FU Ori)
02:58:27	Focusing Started-Foc1	Foc1 Focusing Started (TCF-S)
03:01:19	Focusing Completed	Foc1 AutoFocus Completed (Profile No 11)
03:04:49	Target Completed	Target completed (10/21, GCVS FU Ori)
03:04:53	Target Started (11/21)	Target started (11/21, AT2024hgj)
03:08:34	Focusing Started-Foc1	Foc1 Focusing Started (TCF-S)
03:11:26	Focusing Completed	Foc1 AutoFocus Completed (Profile No 12)
03:27:25	Target Completed	Target completed (11/21, AT2024hgj)
03:27:29	Target Started (12/21)	Target started (12/21, AT2024accj)
03:31:49	Focusing Started-Foc1	Foc1 Focusing Started (TCF-S)
03:34:18	Focusing Completed	Foc1 AutoFocus Completed (Profile No 13)
03:50:28	Target Completed	Target completed (12/21, AT2024accj)
03:50:32	Target Started (13/21)	Target started (13/21, MRK 0628 w/SN2024aakr)
03:54:24	Focusing Started-Foc1	Foc1 Focusing Started (TCF-S)
03:57:03	Focusing Completed	Foc1 AutoFocus Completed (Profile No 14)
04:13:03	Target Completed	Target completed (13/21, MRK 0628 w/SN2024aakr)
04:13:07	Target Started (14/21)	Target started (14/21, UGC 5426 w/SN2024aanq)
04:32:56	Target Completed	Target completed (14/21, UGC 5426 w/SN2024aanq)
04:33:00	Target Started (15/21)	Target started (15/21, NGC 5162 w/SN2024aawh)
04:38:31	Focusing Skipped	Foc1 focusing skipped - star is lost (TCF-S)
04:54:35	Target Completed	Target completed (15/21, NGC 5162 w/SN2024aawh)
04:54:40	Target Started (16/21)	Target started (16/21, AT2024wpc)
04:58:19	Focusing Skipped	Foc1 focusing skipped - star is too dim (TCF-S)
05:15:18	Target Completed	Target completed (16/21, AT2024wpc)
05:16:17	Target Started (17/21)	Target started (17/21, T CrB)
05:20:00	Focusing Started-Foc1	Foc1 Focusing Started (TCF-S)
05:22:40	Focusing Completed	Foc1 AutoFocus Completed (Profile No 15)
05:27:35	Target Completed	Target completed (17/21, T CrB)
05:27:39	Target Started (18/21)	Target started (18/21, 29P/Schwassmann-Wachmann)
05:32:32	Focusing Skipped	Foc1 focusing skipped - star is too dim (TCF-S)
05:48:37	Target Completed	Target completed (18/21, 29P/Schwassmann-Wachmann)
05:48:41	Target Started (19/21)	Target started (19/21, AT2024aart)
05:52:27	Focusing Skipped	Foc1 focusing skipped - star is too dim (TCF-S)
06:08:43	Target Completed	Target completed (19/21, AT2024aart)
06:10:47	Target Started (20/21)	Target started (20/21, PGC 43493)
06:15:52	Focusing Skipped	Foc1 focusing skipped - star is too dim (TCF-S)
06:32:26	Target Completed	Target completed (20/21, PGC 43493)
06:33:07	Target Started (21/21)	Target started (21/21, NGC 4722 w/SN2024ablh)
06:40:09	Focusing Skipped	Foc1 focusing skipped - star is lost (TCF-S)
06:56:58	Target Completed	Target completed (21/21, NGC 4722 w/SN2024ablh)
06:57:00	Queue Completed	Job Queue completed
06:57:02	Session Closing	Session closing
06:57:57	Dome Closed	Dome closed (Closing time 50s, Zigbee 43s)
06:58:40	Dome Parked	Dome parked (parking time 36s), Az: 90.0 deg
06:59:16	Telescope Parked	Telescope parked (parking time 32s total)
06:59:41	Telescope State	Handbox reads 'Scope parked Turn scope off.'
07:00:03	Telescope Switched Off	Telescope Power has been switched off via UPB Switch.
07:01:30	Services Stopped	Night Services stopped
07:01:32	Session Finishing	Session Finishing started (Create Fits Summary, Transfer Files)
07:01:59	Dome (Find Park)	Find Park started (Search Az 88.0 to 92.0°, Step 0.2°, Narrow)
07:02:43	Dome	Find Park found (Best Park Az 90.4°)
07:02:49	Dome	Dome has been synced at park position (Az 90.0°, Adjustment: -0.4°)
07:02:51	Dome Parked	Dome parked
07:03:02	Dome Charging	Dome is parked and re-charging Ok (22mA)
07:03:05	Session Finished	Session Finished

Session Alerts & Alarms

Time	Type		Name	Detail
22:51:14	Red	Alert	CcdCamera	CcdCamera appears to be frozen (last cycle at 22:50:40) in section 'GetCameraProperties / State'
22:51:19	Green	Clear	CcdCamera	CcdCamera has resumed again (22:51) after 39s
22:53:45	Red	Alert	Program Hung	AstroMain UI appears to have stopped responding at 22:53:36
22:54:05	Red	Alert	CcdCamera	CcdCamera appears to be frozen (last cycle at 22:53:30) in section 'GetCameraProperties / Status'
22:54:10	Green	Clear	CcdCamera	CcdCamera has resumed again (22:54) after 39s
22:54:15	Green	Clear	Program Resumed	AstroMain UI has resumed again after 39s
23:04:06	Red	Alert	Program Hung	AstroMain UI appears to have stopped responding at 23:03:57
23:04:21	Green	Clear	Program Resumed	AstroMain UI has resumed again after 24s
23:23:39	Red	Alert	CcdCamera	CcdCamera appears to be frozen (last cycle at 23:23:08) in section 'GetCameraProperties / Temperature'
23:23:44	Green	Clear	CcdCamera	CcdCamera has resumed again (23:23) after 36s
23:25:15	Red	Alert	CcdCamera	CcdCamera appears to be frozen (last cycle at 23:24:42) in section 'SetCameraProperties / AutoSavePath'
23:25:40	Green	Clear	CcdCamera	CcdCamera has resumed again (23:25) after 57s
00:09:36	Yellow	Alert	Disk Space	Free Space on C:\ Drive (36.81 GB) is less than 50 GB
05:05:15	Red	Alert	Dome Alert	Shutter Data isn't being refreshed
05:05:17	Yellow	Alert	Dome Shutter	Pulsar Shutter appears to be asleep (last fresh data was at 04:45:15)
05:05:35	Green	Clear	Dome Shutter	Pulsar Shutter has woken up (fresh data at 05:05:30, outage 20.3 min)
05:05:40	Green	Clear	Dome Alert	Shutter Data has resumed updating
07:01:56	Yellow	Alert	Disk Space	Free Space on C:\ Drive (35.27 GB) is less than 50 GB
07:03:03	Green	Clear	Dome Charging	Dome is parked and re-charging Ok (22mA)

Operational Issues (2024-12-05 S1279)

Critical Issues (0)
Major Issues (0)
Minor Issues (1)
Small Defects (6)
Continuous Improvement (23)

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Critical Issues

None

Major Issues

None

Minor Issues

CCDSoft / SBIG Camera were playing up during primary mirror refocusing attempt. Whilst trying to refocus the telescope's primary mirror so that the TCF-S focuser could operate comfortably within its 0-7000 range, significant problems were encountered with CCDSoft program freezing whilst trying to take an image using the SBIG Camera. There were also incidents where the CCDSoft Interface would crash and leave stranded CCDSoft.Camera and CCDSoft.Image objects in AstroMain. CCDSoft/SBIG camera were restarted multiple times and AstroMain itself was restarted at least a couple of times. SBIGDriverChecker64 was run and and after 'Update Me' and restarting the SBIG Camera, the issues seemed to resolve itself and the rest of the live session proceeded without further problems from CCDSoft/Camera. A separate ticket is raised for a special backdoor button option to Restart CCDSoft without invoking a Restart of the SBIG Camera itself.
Resolved In-Session 2024-12-05 (Session, CCDSoft, SBIG Camera)

Small Defects

AstroAllSky isn't uploading the night's final LatestNightKeogram picture to Observatory Website. This is because the night's final keogram is produced in the morning just after SunAlt =0, but the AstroAllSky routine for uploading nightime images & pictures finishes in the morning at SunAlt=-2. The LatestNightKeogram should be added to the list of daytime files for upload. Implemented in AstroAllSky 3.21.8.
Fixed 2024-12-06 (AstroAllSky 3.21.8)
AstroColorCam crashing when beginning run following program. This is was due to an handled exception in initial 1.1 version associated with trying to close out a previous Keogram, with calls to draw a final righthand axies when the Keogram hadn't been loaded and was likely already closed out. The bug was introduced during 1.0.15. Fixed by using a bNewRestart flag that avoids drawing to Keogram gGraphics when just starting the run. There may be a better way of doing but this was a quick fix to resolve issue. Implemented in final AstroColorCam 1.1 version.
Fixed 2024-12-06 (AstroColorCam 1.1)
Two slews during the session were logged with mutiple slewing=0 lines after the slew had finished (02:54 & 05:27). The telescope slew to GCVS FU Ori at 02:54:48 finished after 33.5s (Slewing=0) but the log file continues to list 6 further ScopePath message lines with Slewing=0 between 34.6 and 40.5s. Similarly the telescope slew to 29P/Schwassmann-Wachmann at 05:27:45 finished after 40.6s (Slewing=0), but the log file continues to list 5 further with Slewing=0 between Times 42.2 and 47.0s. There should be a single Slewing=0 line logged at end of a slew, and most slews follow/apply this intent. Fixed implemented in AstroMain 3.73.6 through a re-factoring of slew monitor in Scope.SlewTheSkyScope().
Fixed 2024-12-07 (AstroMain 3.73.6)
DeviceHub Activity Log didn't log large parts of the Session (2024-12-05). No activity log was available to analyse a somewhat abnormal dome slew for SN 2022yeg. This was most-likely due to 'Pause' button being used in the Activity Window at some point at start of or before the session and the Resume hadn't been used to begin logging again. User needs to remember to ensure that log isn't paused if he wants to have Activity Logging during a live session.
Closed 2024-12-08 (DeviceHub, User Awareness)
Daylight tests of AstroMain 3.73.6 indicate that Scope Slews aren't being correctly reported (2024-12-08). Changes made to AstroMain's Slew Monitor on 2024-12-07 (AstroMain 3.73.6 Release 1) but daylight tests on 2024-12-08 are indicating some calculation / reporting issues. Scope slew is logged at being 0s in the 'Report SlewTime(Scope)' line, whilst the Scope Path clearly shows that slew took around 39s, this must be due to Me(Scope).LastSlewAngle not been correctly assigned . Also The Scope Speed report line is missing (probably because with Slew time of 0s it thought that a Slew had not taken place or to avoid a divide by zero exception. Two bugs fixed 2024-12-08 in AstroMain 3.73.6 (release 2).
Closed 2024-12-08 (AstroMain 3.73.6)
The 'Total Rain in last 5 days' graph box is showing a different number to the sum of daily Rain Totals (2024-12-08). The new 'Total Rain in last 5 days' graph box added in AstroWeather 1.26.7 (release 1) as Graph81 shows 11.7 mm, but the 5d Rain Graph (Graph66) shows daily totals of 2.6, 1.1, 4.1, 15.0 & 2.4 which sums to 25.2mm. Examination of code shows that the difference is caused by how many mins of rain are counted when the gaps from last datapoint is more than 5 mins, The 5d Rain Chart was using 5 mins whillst the Total Rain in last 5 days' was using only 2 mins. However both might be underestimating the total since with data captured at rate of 1 record every minute, and a ten-fold decimation prior to 24 hours ago, the gap between data points is around 10 mins. Changed so that gaps of up to 11 are expected and used, otherwise 10 mins is used. Ideally totalled values should be based on undecimated data, but unclear how to do this without upsetting the current coding setup. Fixed in AstroWeather 1.26.7 (Release 2). A separate continuous improvement ticket is raised to review how data should be totalised for graphs.
Fixed 2024-12-07 (AstroWeather 1.26.7)

Continuous Improvement

Modify AstroColorCam's Keogram Closeout routine to draw the Right Axis abutting the keogram's final column. During construction the right hand axis is draw at a position which is 15 pixels to the right of the current keogram iColumn position, this allows room for top and right annotation to be drawn and without shifting elements of the right hand axis as the rolling keogram is produced, and without overwriting top/bottom label when on day/night keograms when new keogram lines are added to the chart, every 60s. Once the drawing of new keogram finishes at the end of the day / end of the night, it is proposed that the Right Axis is finalised to abutt the last drawn keogram line, giving a clean/polished final product. Implemented in AstroColorCam 1.0.15 and confirmed to be working on completion/closeout of 2024-12-05 Night Keogram.
Done 2024-12-06 (AstroColorCam 1.0.15)
Add SBIGDriverChecker64 to the programs that can be launched from AstroLaunch's Support Apps ab. Occasionally the SBIGDriverChecker64.exe needs to be run to check and/or try to resolve an SBIG Camera Issue. Currently the program has to be brought using Windows Start/Apps List and to select the SBIG folder and SBIGDriverChecker64.exe item. It would easier to select it from the already running AstroLaunch application. Opportunity was taken to place the application on Support Apps tab into alphabetical order.
Done 2024-12-06 (AstroLaunch 1.11.11)
Add an extra 'Visual Studio 2022' launch button to AstroLaunch's Analysis tab. The addition of this extra launch button will make it easier and quicker to open Visual Studio on the Development Computer without the need to first open the Support App tab. Implemented in AstroLaunch 1.11.11.
Done 2024-12-06 (AstroLaunch 1.11.11)
Add extra handling to AstroColorCam to create a 3h video of latest NorthCam images every 30 mins. This aims to produce a reasonably up-to-date video showing recent images from the new Tapo C325WB camera, that is pointed to the northen sky and show any active aurora in colour. Implemented in AstroColorCam 1.1.1 with added support to AstroAllSky 3.21.9 to upload files to Observatory website as NorthCam.Latest3hVideo.mp4 and NorthCam.FirstFrame3hVideo.jpg. Video Images is 850 pixels wide (scaled down from original 1080 pixiel wide images) and video created with a quality setting of 28. This creates a 3h video that is only around 760 KB in size. A flag file system needs to be put in place with a watcher in AstroAllSky to upload new 3h video files as soon as a new video file is generated otherwise it could take up to 50 mins for a new video to appear on the website using the current processes.
Done 2024-12-06 (AstroColorCam 1.1.1, AstroAllSky 3.21.9)
Reduce Telescope Settle Time in MeadeGeneric Settings to 0s. Currently the Telescope Settle Time is set to 2s in MeadeGeneric's Settings. As it impacts the measurement of the actual slew time it is proposed to changethe setting to a new figure of 0s.. Since a 'Smart ' Settle Tme (setttle time up to 5s) is already incorporated into AstroMain's Slew Monitor and all critical and automated slews are made using AstroMain there is no need to use the MeadeGeneric's settle period.
Done 2024-12-07 (MeadeGeneric Settings)
Query. During Slew to GCVS SU Tau, the telescope Slewing flag didn't become true until 3.5s after the request to Slew (01:20). Following the request to TheSky6.Telescope.SlewToRaDec , the Telescope's slewing flag remained false until it began showing True value at 3.5s. Where was the delay, most-likely getting the SlewToCoordinatesAsync request from TheSky6 to DeviceHub ? Investigating shows TheSky6.Telescope.SlewToRaDec was called at 01:02:30.43 with Slewing turning True at 3.5s at 01:02:33.98 (having still been False at 3.3s). DeviceHub logging shows that SlewToCoordinatesAsync Method was only entered at 01:02:33.80 (ie at 3.37s) indicating that the request was held up in TheSky6. This is an occasional issue that can't realistically be fixed. It points out that AstroMain's slew monitor should count the delays as part of the telescope slew time for calculating slew speed.
Closed 2024-12-07 (TheSky6, DeviceHub)
AstroMain should be modified to not log changes in Zigbee Dome Sensor, ie Parked/Unparked when a slew is in progress. When a Telescope Slew is being made and the slaved dome is moving in response, the Dome may on occassions slew past the Zigbee Dome Park Sensor, causing a Dome Parked/Dome Unparked message to appear in the middle of the ScopePath listing in the log file. These parked/unparked message should be disabled in this situation where Telescope Slew is being made by AstroMain. The Sensor State change should still be logged when the Dome is being slewed under a direct dome command. Although the AstroMain had previously be modified to not report Dome Park/Unpark events unless required via use of Dome.bHideParkSensorChanges flag (2024-11-08, CI S1264A), the logging of park/unpark events was changed at that time. New improvment implemented in AstroMain 3.73.6 now disables logging of park/unpark events in the Zigbee.HandleSensorChange() routine when bHideParkSensorChanges=True.
Done 2024-12-07 (AstroMain 3.73.6)
Add a backdoor button facility to Restart CCDSoft without invoking SBIG Camera Restart. This proposal is to provide additional flexibility to resolving or diagnosing CCDSoft Camera issues and prevent stranded CCDSoft Camera/Image Object Instances in AstroMain that may otherwise require a restart of the AstroMain program. New button option 'Restart CCDSoft Only' has been implemented in AstroMain 3.73.6 which uses the new enum value RestartCCDSoftMode.UserActionCCDSoftOnly (7). Since Camera isn't reconnected the CCD Camera's AutoSaveFolder can't be set. Whilst it will be set when Camera is next connected to from AstroMain, if user connects to camera from CCDSoft and takes an image, the image may not be saved in the folder expected.
Done 2024-12-07 (AstroMain 3.73.6, User Awareness)
Install new Eaton 3C 850B UPS System in the Observatory's AllSky/Weather Computing Bay. New UPS system arrived today from Amazon (2024-12-06). UPS to be installed in the AllSky/Weather Computing according to the configuration defined in Uninterruptible Power Supply (UPS) for the AllSky/Weather Computing Bay section below (during the first live session. Installed 2024-12-07. Eaton Companion 2.1 also installed on AllSky/Weather Computer.
Done 2024-12-07 (Observatory, AllSky/Weather Computing Bay, UPS System)
Place a marker on the LX200's Focus Knob to better understand the scope's mirror shift / focus issue. Due to the absence of a working focus lock on the Observatory's LX200 Telescope, the primary mirror will on occasions shift under its own weight causing a not insignificant change in focus position, the cummulative effect of shifts over a number of sessions eventually causes the best focus position on the TCF-S focuser to become dangerously close to the lower limit of the TCF-S focuser's 0-7000 range which makes autofocusing difficult, unreliable or even impossible. The mirror shift issue complicates the process of adjusting the telescope's primary mirror focus, because after adjustment the mirror can quickly shift/relax even before a new focus profile has been taken or it quickly shift/relax again during the first live session. To better understand the situation is is proposed to add a markers on the focus knob and back of the telescope to see if the shifts in the primary mirror cause the focus knob to rotate or is independant. If the knob is rotated by the shifting primary mirror then it might provide an opportunity of holding the primary mirror's position fixed if there was some way of 'locking' the focus knob in position.
Done 2024-12-07 (Observatory, LX200)
Query. A mystery light is affecting NorthCam image 2024-12-07 (23:07). A mystrey light is affecting the left hand of NorthCam images this evening (see Fig 2 below). Conditions have been wet and stormy. A look from an upstairs window was made but source of the lighting couldn't be identified. Reviewing session images recorded every 30s showed that the light was present for 9-10 minutes between 23:02 and 23:11, and then disappeared. Ticket closed.
Closed 2024-12-07 (Tapo Colour Camera / NorthCam )
Query. Slaved Dome Slew to SN 2022yeg was slightly abnormal (01:57). In response to telescope slew to SN 2022yeg the DomePath listing showed Dome Slewed from Az 148.2° to 149.2° (between 0 and 1.5s) at which point the slewing stopped briefly before the dome then slewed from Az 149.2° to 146.0° (between 2.6 and 5.6s) . It is hypothised that the initial slew was a result of a periodic 1° nudge in response to telescope tracking, that slew was taking place at the very moment the Telescope was requested. A DeviceHub Activity log doesn't seem to have been saved, however reconstructing the time line. DeviceHub's SlewToCoordinatesAsync was entered at 01:57:08.164 , which woulld be about the time that Dome would normally be request to slew to target Az. . Pulsar Observatories ASCOM log shows a SlewToAzimuth 149.2° at 01:57:05.536 which fits which is consistent with the initial slew being a periodic slew as it is made before DeviceHub receives the request to slew the telescope. Slightly later the logs show SlewToAzimuth 146.0° at 01:57:08.67. The query is considered answered.
Closed 2024-12-07 (Session, DeviceHub, Pulsar Dome)
Decimate LatestWindSpeed data before Plotting on 5d WindSpeed Graph. Latest Wind Speed data on 5d WindSpeed Graph (graphID=9) is too dense. Ws data is already decimated by ten when age is >24 hours and by five when age is 24-16 hours old. Data should be further decimated before plotting by half when age is 24-16 hours old and by ten when age is < 16 hours, to bring overall data decimation level to ten. Implemented in AstroWeather 1.26.7.
Done 2024-12-08 (AstroWeather 1.26.7 )
Create a 16h Rain Ws Graph and Graph boxes showing Rain in last 24 hours and last 5 days. Create a 16h Rain Ws Graph (Graph79) based on 5h Rain Ws Graph (Graph72), and Rain Total boxes for last 24h (Graph80) and last 5d (Graph81), based on Rain This Year Box (graph 77). Implemented in AstroWeather 1.26.7
Closed 2024-12-08 (AstroWeather 1.26.7 )
Remove Virtual Weather Station checkbox & flag from AstroLaunch/AllSky Tab and add a UPS Companion flag. Virtual Weather Station (vws) is no longer used on AllSky/Weather Computer due to replacement of Oregon Scientific Weather station by new Ecowitt Wittboy Weather Station. Eaton UPS Companion is now used on AllSky/Weather Computer following installation of a new Eaton 3S 850 UPS box in the AllSky/Weather Computing Bay. Implemented in AstroLaunch 1.11.12.
An 'Eaton UPS Companion' launch button has been added to 'Support Apps' tab but it need to execute "C:\Program Files (x86)\Eaton\UPSCompanion\mc2.exe" -open without checking for an already running process since mc2 will already be running but as a service'.
Closed 2024-12-08 (AstroLaunch 1.11.12)
Query. What WindSpeed source is used on DaySummaryPlot6 & NightSummaryPlot6 charts. Review which wind speed tag/item is used on SummaryPlo6. Can fine resolution be achieved now the the New Ecowitt Weather Station is giving good, high cadence data. Data plots Ws.WindSpeed. A trial will be made using .LatestWindSpeed, calculated as WindSpeedLatest40sAv (average of .LatestWindSpeed over previous 40s)
Done 2024-12-08 (AstroAllSky 3.21.10)
ObsViewer to show 'Telescope is connecting' with Yellow Flag when telescope is being connected to. This show operate in a similar way to Dome is connecting' feature that was added to AstroMain recently on 2024-11-20 (SD/CI S1172).
Done 2024-12-08 (AstroMain 3.73.6)
Add Daily Solar Radiation totals to 5d Solar Radiation Graph. Sum the Solar Radiation figures for each day in kWh/m2 and post on 5d Solar Radiation (Light chart (Graph71). Base it on 5d Rain Ws Chart (Graph66). Implemented in AstroWeather 1.26.7.
Done 2024-12-08 (AstroWeather 1.26.7)
Add Console Reporting Facilities to AstroWeather program. Add Console Reporting Rich Text Box (txtLogBox) to AstroWeather Main Form, with associated Report Formating and Text Box handling, and Report File Handling to support the increased role that AstroWeather program is being given on the AllSky/Weather Computer. Further tasks will be to add relevant AddComment/ReportComment calls from the various modules and routines within the AstroWeather program. Basic implemenation added to AstroWeather 1.27 based on code copied from AstroMain 3.73.6
Done 2024-12-08 (AstroWeather 1.27)
Add UpsMonitor to AstroWeather program. Following installation of a Eaton UPS System in the AllSky/Weather Computing bay, the installation of UPS Companion on the AllSky/Weather Computer, and the confirmation that AstroWeather will be the primary monitoring program on that Computer a UpsMonitor should be added to that program. This will be a module based on UpsMonitor.vb that was developed on the AstroMain Program for monitoring the UPS system in the Observatory Computer Bay. Implemented added to AstroWeather 1.27.
Done 2024-12-08 (AstroWeather 1.27)
AstroMove to reset fields on From Observatory, To Observatory and Backup tabs after 10 mins of inactivity. After 10 mins without AstroMove being a foreground window the data fields, checkboxes & progress bars on 'From Observatory', 'To Observatory' and 'Backup' tabs should be reset. Implemented in AstroMove 1.14 within AutoRefresh() routine. A previous CI ticket (CI S1273) to automatically update the Last Session Name on From Observatory Tab was also implemented within the AutoRefresh() routine.
Done 2024-12-09 (AstroMove 1.14)
Reposition the Tapo Colour Camera "North Cam" to look due north. After being temporarily installed on a fence post looking NW during initial assessment and software developement, the Tapo C325WB Colour Night Vision Camera needs to be re-position on an elevated post attached to fence and looking due north. Camera repositioned on afternoon of 2024-12-09. The Camera 's power and ethernet cable still need to be buried below the Chipping between the fence and the Observatory. Update relevant settings in AstroColorCam to reflect revised Keogram Line position and keogram altitude range.
Done 2024-12-09 (Observatory, Tapo Colour Camera, AstroColorCam 1.1.3)
Relocate Weather Station's Ch1 Temprature/Humidity Sensor to permanent location. due north. After being temporarily located in the Observatory relocate the WN31 temperature/humidity sensor (Ch1) into a final outdoor location housed in an Ecowitt RS0001 Sensor Shelter attached to outdoor shed and housed in temporarily installed on a fence post looking NW during initial assessment and software developement, the Tapo C325WB Colour Night Vision Camera needs to be re-position on an elevated post attached to fence and looking due north. Camera repositioned at 13:00 on 2024-12-09. The Camera 's power and ethernet cable still need to be buried below the Chipping between the fence and the Observatory. Update relevant settings in AstroColorCam to reflect revised Keogram Line position and keogram altitude range.
Done 2024-12-09 (Observatory, Tapo Colour Camera, AstroColorCam 1.1.3)
Review how data should be totalised for drawing daily totals on Graphs or posting to last 24 hours/last 5 days box graphs. A discrepency between a Rain Total in last 5 days and the sum of the last 5 daily rain totals exposed an issue with how data is totalised. Currently the totals are produced based on data loaded to the WsData array, but this uses a ten-fold decimation of data older than 24 hours, With original data having a saved frequency of 1 record per minute and a 1:10 decimation means that the gap between data points can be around 10 mins so this greater affects the precision of any derived totals which have to make assumptions about the value of the specific attribute in between points. Currently the value for each point is weighted by the minutes since the previous data point.
To Review 2024-12-08 (AstroWeather)
Consider option of removing the '6 Socket' and '4 Socket' Power Strips in Observatory Computing Bay. With the removal of the A/C Adapter for the old Weather Station's base station, there is a potential opportunity to reduce the number of power strips used. The revised Configuration after removal of the old Base Station and the potential future configuration are shown here.
To consider 2024-12-07 (Observatory, Observatory Computing Bay, UPS System)
Consider option of removing the '6 Socket' Power Strip in Observatory Computing Bay. Whilst installing the new UPS System in the AllSky/Weather Computing Bay it was noted that there is an option to simplify the arrangement of the bay by the removal of the 6-socket power strip and the utilisation of existing unused sockets (without battery backup) on the Eaton UPS Box. The potential future configuration is shown in a diagram here.
To consider 2024-12-07 (Observatory, AllSky/Weather Computing Bay, UPS System)

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Fig 1. SBIG Drivers Updated (post-session)

Fig 2. NorthCam image with mystery light affecting left-hand side of image (2024-12-07).

Fig 3. NorthCam View after being repositioned (2024-12-09)
Camera is now looking due North. The red line show the position of the North Keogram Line
A minor tweak may be made rotate the camear slightly to the left in order to avoid view of the house roof on right of image.
Azimuthal field of view is estimated to be 74°. Altitude range is estimated to be 0-40°.

Fig 4. Ch1 Temperature following relocation from temporary position inside to a permanent position outdoors (2024-12-09)
There are now two outdoor sensors.:
- The CH1 T/H sensor which is located in a shaded area (but further from the Ekowitt G2000 Gateway)
- The T/H sensor on the Ecowitt Wittboy (W90) station itself, but may be less reliable in summer as it is in a full sunlight position and less reliable in mid-winter due to proximity to the Sonic Anaenometer Heater (when installed)
The graph shows the drop in temperature at 13:00 as the sensor is more from relatively warmer Observatory where it sat in AllSky/Weather Computing Bay, next to AllSky/Weather Computer and on a shelf above various equipment, such as the Ethernet Switch and various A/C Adapters), to the outdoors position where reading become similar to the W90's Temperature.

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2024-12-07

Uninterruptible Power Supply (UPS) for AllSky/Weather Computing Bay

Previous Review
As part of a review looking at increasing the Observatory and Live Session resistance to small power outages the potential of using one or two UPS Systems with offline battery backup was identifed in Feb 2024 (Review - Increasing observatory & session resistance to small power outage, 2024-02-28). The review identified that the Observatory's LX200 Telescope was the observatory element that is most affected by an unscheduled power outage and this led to the selection, purchase and installation of a UPS System for the Observatory Computing Bay. Review - Uninterruptible Power Supply (UPS) for the Observatory Telescope, 2024-03-03 & Eaton 3S 850B UPS - Off Line Uninterruptible Power Supply System, 2024-03-03).

Consideration of a UPS System for the AllSky/Weather Computing bay was initially left a later date, but an incident during the S1197 session (2024-03-13) in which the Pulsar Dome lost its settings and azimuth position during a power outage test has brought forward the need to make a review of a UPS System for the AllSky/Weather Computing cabinet, which sources the power for the Pulsar Dome (Review - Uninterruptible Power Supply (UPS) for the Pulsar Dome & Cloud Sensor, 2023-03-15.

Decision
A later anomaly duing the S1274 session (2024-11-22) which saw the communication with both the Cloud Sensor and SBIG camera being lost at precisely the same time and couldn't be recovered with user intervention the next morning, and the introduction of a new Weather Station (Ecowitt Wittboy with G2000 Gateway) and a Tapo C325WB colour camera together prompted a decision on 2024-12-02 to acquire a second UPS system with battery backup for the Observatory to be installed in the AllSky/Weather Computing Bay.

An Eaton 3S 850B - Offline Uninterruptiple Power Supply System will be used. This is the same model at used in the Observatory Computing Bay which has proved reliable and it can leverage some of the software integration that is used by AstroMain for monitoring the UPS and progresively responding to power outage. This role will most likely be taken on by AstroWeather program running on the AllSky/Weather Computer.

Configuration

The current and proposed power/equipment configurations in the AllSky/Weather Computing Bay (updated from their earlier Mar 2024 versions) are shown the the two diagrams below :

The use of a small power strip is a necessary component as the space between output sockets on the UPS System are too small for using HUE Smart Plugs and certain A/C Adapters as was found out during the installation of the Eaton 850VA unit in the Observatory Computer Bay, and to provide UPS Battery Backup to 5 primary devices needing protecting (Pulsar Dome, Cloud Sensor, Pegasus USB Hub, Ethernet Switch & Tapo Camera).

USB Hub
The Pegusus USB Hub' connections has been slightly reconfigured with the installation of the UPS System: the USB cable from the Eaton UPS Hub now replacing the USB cable that came from the USB Hub/Receiver for the old Oregon Scientific Weather/Base Station (the latter has been replaced by a new Ecowitt Weather Station).

Equipment & UPS Battery Management during a Power Supply Outage

This will be defined following installation and based on experience with the use of Eaton UPS system in the Observatory Computer Bay.

Actions

Install Eaton UPS system in AllSky/Weather Computing Bay with cables connected as per proposed configuration (see diagram above)
Done 2024-12-07 (Observatory)

Install Eaton UPS Software on AllSky/Weather Computer & update settings to those required.
Done 2024-12-07 (AllSky/Weather Computer)

Update Power procedues in AstroWeather and AstroMain programs to reflect the addition of a second UPS system and the battery backup it will provide to Pulsar Dome, Cloud Sensor, Tapo C325WB Colour Camera, Ethernet Switch and Pegasus Hub (and thus also to AllSky Camera, Observatory WebCam, Ecowitt Gateway, & G Drive).
To do.

Consider the option of removing the '6 Socket' Power Strip in Observatory Computing Bay. Whilst installing the new UPS System in the AllSky/Weather Computing Bay it was noted that there is an option to simplify the arrangement by the removal of the 6-socket power strip and the utilisation of existing unused sockets (without battery backup) on the Eaton UPS Box. The potential future configuration is shown in diagram below
In Progress /On Hold

Potential future Configuration

In this configuration the Eaton UPS Box would plug directly into the Main Power Power in the position marked 'AllSky/Weather Cabinet'

Potential issues with this configuration

The sockets used for A/C Adapters for AllSky/Weather Computer and AllSky Camera Heater and Aux Light have no on/off switch. Plugs for these 3 devices go directly into the 'no battery backup' sockets on the Eaton UPS Box
The lack of space between sockets on the Eaton Box means there is no free available socket. However there are 3 slots free on the main power panel for ad-hoc use

Advantage of this configuration is likely to be only levered if the Eaton UPS Box can be positioned vertically on the left-hand side of cabinet, otherwise the plugs for the Computer, AllSky Heater and Aux Light are more in the way than current configuration.
- is the space tall enough to accomodate the UPS Box vertically.

Updated UPS / Power Configuration in Observatory Computing Bay

Following the successful installation of new Ecowitt Weather Station, the old Oregon Scientific Weather Station is now effectively redundant and the A/C Adapter for the old base station was removed from the Observatory Computing Bay today (2024-12-07).

The updated diagram showing the revised power/equipment configuration in the Observatory Computing Bay & LX200 Telescope is shown below :

Potential future Configuration
Based on revised usage of power outlets in the Observatory Computing Bay and a forthcoming plan to add a A/C Adapter for a Heater on the Ecowitt Wittboy (W90) Weather Station providing heating protection for its Haptic Rain Sensor & Sonic Anaeometer in cold/freezing conditions, a potential future configuration is shown below. This would see the removal of both the 6-socket powerstrip and the small power strip and the utilisation of existing unused sockets (without battery backup) on the Eaton UPS Box, but require the addition of one extra socket between the input cable from Main Power Panel and the Eaton UPS Box.

There is room to add a Smart Plug for the A/C Adapter for the Ecowitt Heater is required.

Potential issues with this configuration

a 1 or 2 socket needs to be added to allow the Plug for the Eaton UPS Box to access 240v input provided by a cable from the Observatory Main Power Panel (currently this cable is hardwired into the 6-socket power strip).
The sockets used for A/C Adapters for Observatory Computer and Ecowitt Heater have no on/off switch. Plugs for these 2 devices go directly into the 'no battery backup' sockets on the Eaton UPS Box
Increasing the number of devices requiring battery backup any more, will necessiate the re-introduction of small power strip, but this is easily done.

This Web Page:	Notes - Session 1279 (2024-12-05)
Last Updated :	2024-12-10
Site Owner :	David Richards
Home Page :	David's Astronomy Web Site

David's Astronomy Pages Notes - Session 1279 (2024-12-05)

Session Aims & Highlights (2024-12-05)

Operational Issues (2024-12-05 S1279)

2024-12-07

Uninterruptible Power Supply (UPS) for AllSky/Weather Computing Bay

Updated UPS / Power Configuration in Observatory Computing Bay

David's Astronomy Pages
Notes - Session 1279 (2024-12-05)