| Date | Description | Person(s) | Hardware Group | Action performed | Attachment | Edit | Site | Task(?) |
| 2026-02-24 |
Cannot get Focuser to connect on SONG telescope 2 |
Mads |
Telescope 2 |
Have tried to stop/start PWI2, power cycle PW box in dome etc but PWI2 just reports: - Controller not found on COM1. Check Power and Cables - |
None |
Edit |
MtKent |
284 |
| 2026-02-23 |
SONG telescope 1 oscillates back and forth in azimuth when trying to initiate it and after moving it a bit. |
Mads |
Telescope 1 |
I have tried to power cycle the Plane Wave control box a number of times. Home the telescope a number of times and stop start PWI2. |
None |
Edit |
MtKent |
283 |
| 2026-02-16 |
SONG Telescope 1: - Azm Error 29586 Fedback level too low - the telescope cannot move in Azimuth |
Mads |
Telescope 1 |
Power cycled the PW box and restarted PWI2 and rebooted the Tel-com. The error continued to be there. Maybe something is wet in the dome? |
None |
Edit |
MtKent |
282 |
| 2026-02-12 |
No connection to anything in the FUT dome so either power or network connection to the dome is lost, likely due to bad weather. Thus, the "Urgent" level refers to urgent when weather allows observations again. |
Karsten |
|
|
None |
Edit |
MtKent |
281 |
| 2026-02-04 |
Connection to guide camera on SONG telescope two is lost. It has been getting worse and worse in providing good images and finally today the connection is totally lost. |
Mads |
T2 guider |
If the on-site team could check the power and network connectors from the camera two the PDU and switch in the dome it would be a great start. Meanwhile the telescope is not usable. If the camera is broken we have a new guider in Aarhus. |
None |
Edit |
MtKent |
280 |
| 2026-01-22 |
Errors from the telescope control system in relation to the hexapod is popping up all the time at startup and preventing observations |
Mads |
Telescope |
Clearing will not make it go away in most cases. I have now tried to make the telescope NOT power off and on but in stead keeps powered on and will park back at 75 degrees in altitude to relax more on the hexapod. |
Show |
Edit |
Tenerife |
|
| 2026-01-15 |
Errors for M2, Active M2 ... errors when starting up .... (the monitor was not running, so I started it). |
Frank |
Telescope |
Tried numerous times to clear the error in Astelos during telescope startup, but without success. |
None |
Edit |
Tenerife |
279 |
| 2025-11-27 |
The flux level of SONG T1 is very low. |
Mads |
Telescope 1 |
It looks like it must be somewhere inside or before the nasmyth guiding unit since not much light hits the guide camera either. Maybe some bug are infesting the guide unit? or something else in the telescope is reducing the amount of light significantly. |
None |
Edit |
MtKent |
278 |
| 2025-11-26 |
Replaced circuit breaker for SONG UPS input line |
Miguel (MOT), Pere |
None |
A less sensitive circuit breaker installed |
None |
Edit |
Tenerife |
|
| 2025-11-25 |
Circuit breaker for the main inpout line to UPS went OFF (down). Slit open !!! |
Pere, Borja (Operator) |
Dome |
Borja (guided by Antonio and Pere at phone) took care to close it properly and breaker ON again |
None |
Edit |
Tenerife |
277 |
| 2025-11-12 |
The door to the electronics cabinet in the SONG dome 2 seems to be open |
Mads |
Dome 2 |
It needs to be closed to prevent hitting the telescope or cables... |
None |
Edit |
MtKent |
275 |
| 2025-11-12 |
The boltwood weather data periodically (every few to five minutes) reports values that incorrectly suggest rain. Since you are going out to Mt. Kent, could you please check up on that? Thanks |
Karsten |
|
|
None |
Edit |
MtKent |
276 |
| 2025-10-30 |
No light from stars at all |
Mads |
Telescope |
I was not able to find any stars at all. Not even the moon. Possible to see scattered light in slit guider with light on in the dome but nothing from the sky. Closed down and more testing tomorrow to investigate. |
None |
Edit |
Tenerife |
274 |
| 2025-10-27 |
General check of the dome elements (shuter,flaps,cables, rollers, azimuthal movement etc) plus telescope cables. OK |
zntonio P, Pere |
Dome and telescope |
general check all of mdchanisms |
Show |
Edit |
Tenerife |
|
| 2025-10-27 |
Cannot connect to telescope in PWI4. Get Error: "2025-10-28 02:15:52.195: ERROR System.Exception: Unable to connect to Azimuth/RA axis: The operation has timed out. at PWI4.MotionControllers.ElmoMotionController.Connect()". This seems similar to earlier error when the power to the motor was somehow disconnected. Please investigate. |
Karsten |
|
|
None |
Edit |
MtKent |
273 |
| 2025-10-25 |
Software error reported. No observations |
Pere,Mads |
telescpoe |
The telescope control software is reporting some kind of error with homing of the hexapod |
None |
Edit |
Tenerife |
|
| 2025-10-21 |
No observations after weather improved |
Mads |
Telescope |
Telescope control software was not working correctly. A restart solved it. |
None |
Edit |
Tenerife |
|
| 2025-10-10 |
Low flux level during some time |
Mads, Frank |
Spectrograph |
Check all motor combinations and figured out that the Iodine cell position has changed....? The new position is now added to the code and all should run correctly. |
None |
Edit |
MtKent |
|
| 2025-09-19 |
Kept closed because of controlled forrest fires (fuel reduction burns) around the observatory |
Mads |
All |
Stopped the monitor and closed down |
Show |
Edit |
MtKent |
|
| 2025-09-18 |
No observations during night |
Mads |
Telescope |
For some reason the telescope was powered on at the time where it should be started up by the software. Since this is seen as an overwrite safety prevented observations. |
None |
Edit |
Tenerife |
|
| 2025-09-16 |
Full power failure at Mt Kent |
Mads |
All |
Had to restart everything since all had been powered off. We are now observing again and all seems fine. Temp. box will slowly stabilize in a day or two. |
None |
Edit |
MtKent |
|
| 2025-09-16 |
No power in the FUT dome since 03.50 . Likely breaker switch, since SONG teleskopes also lost power, but that is back |
Karsten |
|
|
None |
Edit |
MtKent |
272 |
| 2025-09-06 |
An error occurred during the closing of the dome flap ("the while loop time-out so the dome flat might still be open"). |
Jonatan Rudrasingam |
Servers (I think) |
Activated shutdown seem to have closed the dome, although not sure if it would have closed without activating it. |
None |
Edit |
Tenerife |
|
| 2025-08-28 |
The SONG telescope 2 reports -Azm Error 29956 Motor pulse usage too high- and will disable motors after short movement. |
Mads |
Telescope 2 |
I have tried to power cycle the telescope control box and restart PWI 2 and the PC. It seems it is and actual issue with the telescope azimuth movement. Not sure if it needs greasing or something else to ease the movement? |
Show |
Edit |
MtKent |
271 |
| 2025-08-28 |
Dust level was always only just below yellow limit |
Mads |
Weather station |
I added and offset to lower the value based on visual inspection on the web camera |
None |
Edit |
Tenerife |
|
| 2025-08-22 |
Duncan and Frank adjusted the spectrograph |
Frank |
Spectrograph |
No ThAr light: The controller did not deliver a sufficiently high voltage - We switched to the old, non-adjustable power supply. This worked! We adjusted the iodine mirror such that the fiber outputs fall exactly on the ThAr fiber output. All modes (flat, flati2, fp and ThAr) seem to work right now and give light on the detector. |
None |
Edit |
MtKent |
|
| 2025-08-19 |
No connection to IRF90 (rotator and focuser). Are power and connections to the unit OK? The values reported for the focus position have been acting strangely for days prior to this. |
Karsten |
|
|
None |
Edit |
MtKent |
270 |
| 2025-08-06 |
MADS: For AFTER the vacation ! :-) Ghost in the machine ???? Yesterday I stopped both T1 and T2 monitors and or-scheduler --- yet, I discovered in the afternoon that the telescopes had opened and tried to observe, however acquisition always seemed to fail. In addition at the end of the night, when the sun was 3.5deg below the horizon both domes were still open!! |
Frank |
Telescope |
I Closed the domes manually from HW. One observation + many ThAr was obtained in the night. NO flux on the ThArs. |
None |
Edit |
MtKent |
269 |
| 2025-08-05 |
MADS: I put urgent, but guess you are on vacation, so this is for after :-) :The weather is great and not errors reported anywhere - but no observations. |
Frank |
Telescope |
It seems that I cannot home/move T1, T2 using the PWI2 interface. Tried to restart PWI on T1 ... seemingly no effect. I have disabled T1, T2 monitors and the OR_scheduler and closed the domes. |
None |
Edit |
MtKent |
268 |
| 2025-08-04 |
Replaced the mechanisms (rollers,etc) of the PST |
Antonio P., Hector (MI), Pere |
Spectrograph |
Installed the mechanisms we bought in advance. Need to check remotely and see how it works |
None |
Edit |
Tenerife |
|
| 2025-07-29 |
Reoccurring issue with calibration light motor slide preventing observations |
Mads, Pere and Antonio |
Pre Slit Table |
The motor rails and bearings were checked and adjusted by Antonio but it continued to fail after few movements. I have decided to stay closed until Antonio and Hector will try to change the rail to a new one on Monday the 4th of August. |
None |
Edit |
Tenerife |
267 |
| 2025-07-28 |
No calibration light through fibres for quite some time |
Mads |
calibration shutters |
Checked if light from ThAr and Flat came to guide unit in nasmyth which it did not - most likely the shutters in the guide unit are not activated in remote mode. @Duncan: could you please check and activate them next time at MtKent? |
None |
Edit |
MtKent |
266 |
| 2025-07-27 |
No observations during night |
Mads |
Pre slit table - calibration mirror slide |
The same problem as a week ago with the motor slide on the pre slit table. It reports issues and cannot be moved by software. On-site manual assistance needed. |
None |
Edit |
Tenerife |
265 |
| 2025-07-25 |
The telescope will not properply shut down around ~11 am local time. While the mirror covers and dome flap are closed, the dome slit remains open. The SONG mail keeps spamming that the dome was not properply closed |
Jonatan Rudrasingam |
Dome |
Activated shutdown and added it to task |
None |
Edit |
Tenerife |
264 |
| 2025-07-24 |
Cannot connect to telescope and telescope in strange position. When trying to connect through PWI4 one gets an error: Axis0 communication channel not found. Is the device plugged in and turned on? See attachment. Duncan, feel free to call me at 91959459 at any time if you need help troubleshooting or to test something. |
Karsten |
|
|
Show |
Edit |
MtKent |
263 |
| 2025-07-18 |
No observations during night |
Mads, Pere |
Pre slit table |
The calibration mirror slide including ThAr fibre feeder, solar fibre feed etc is not working. It needs on-site inspection of the pre-slit-table and specifically the specific motor slide. |
None |
Edit |
Tenerife |
262 |
| 2025-07-18 |
Calibration bench stucked |
Antio P., Pere, Mads |
Spectrograph |
On the 19th afternoon Antonio perdormed a full cleaning of the mechanisms. Several tries. Finally Mads was able to move the bench back and forwrd and then observations resume satisfactory the whole night |
None |
Edit |
Tenerife |
|
| 2025-07-07 |
Disabled usage of T2 since this is causing issues on a daily basis and most people are on holidays.... |
Mads |
Telescope 2 |
Closed down and turned off monitor. |
None |
Edit |
MtKent |
|
| 2025-07-01 |
Testing of pointing |
Mads |
Telescope |
I believe I found the cause for the bad pointing on specific targets. A missing division by cosine to the declination when calculating the ra proper motion seems to have solved the issue. fingers crossed. |
None |
Edit |
Tenerife |
|
| 2025-06-30 |
T2 did not home and errors where shown in PWI2 - Tracking error |
Mads |
Telescope 2 |
Re-enabled the motor and then moved the telescope a bit. This raised another error (motor pulse too high). I then power cycled the PW control box. Re-started PWI2, connected and enabled and then the homing went well. |
Show |
Edit |
MtKent |
|
| 2025-06-24 |
Calibration light from fibre in SONG T1 was not centered on science fibre. |
Mads, Duncan |
Calibration unit |
The fibre outout from the calibration fibre was adjusted using the alignment screws. The alignment is not perfect but much better now. |
None |
Edit |
MtKent |
|
| 2025-06-24 |
From the daily light on slit checks it was noticed that light with iodine was not centered on slit |
Mads, Duncan, Frank, Jonatan |
Spectrograph |
The spectrograph box was opened and the Iodine cell was rotated until spots were aligned on slit. Afterwards it was noticed that this was most likely not needed and the confusing was originating from misconfiguration for the daily check images. |
None |
Edit |
MtKent |
|
| 2025-06-23 |
The calibration fibre for SONG telescope 1 is misaligned with the science fibre. See attachment |
Mads |
Calibration unit |
Light from calibration unit was checked on the guide unit in the nasmtyh of T1. Afterwards light was send back through the science fibre to determine the location on the guider. These two do not align and the calibration fibre should be adjusted on site to hit the science fibre better. |
Show |
Edit |
MtKent |
260 |
| 2025-06-17 |
Testing the focus for Slit 8: New value is 112500. |
Frank |
|
Tests for diffrent camera focus values + a picture of the ThAr illum of the slit - cleary offset. |
Show |
Edit |
Tenerife |
|
| 2025-06-17 |
Tested whether we can hit the slit properly again by changing the ThAr-fiber illumination mirror position - YES we can. |
Frank |
Spectrograph |
The new encoder position for ThAr and motor 4 is 1930000 (was 1790000). Figure attached to show the new position. |
Show |
Edit |
Tenerife |
258 |
| 2025-06-17 |
Telescope and dome control system seems to not be able to read the dome azimuth motor value |
Mads, Pere |
Dome |
Tried to power cycle dome controller, reboot full telescope server system etc but nothing seems to make the dome work... Manual inspection on site needed. |
None |
Edit |
Tenerife |
259 |
| 2025-06-09 |
An error occurred during the closing of the dome flap ("the while loop time-out so the dome flat might still be open"). |
Jonatan Rudrasingam |
Servers (I think) |
Activated shutdown seem to have closed the dome, although not sure if it would have closed without activating it. |
None |
Edit |
Tenerife |
|
| 2024-07-02 |
Raw images of ThAr spectra show nothing from 2. July |
Jonatan Rudrasingam |
Spectrograph |
Added it to the task as time worthy, since the wavelength solution on Mt. Kent is stable and people are on holiday. But it needs be looked at somepoint during August at the latest |
None |
Edit |
MtKent |
261 |
| 1970-01-01 |
Rotation of the Dome. |
Antonio P, Pere, Mads |
Telescope-Dome |
Antonio confirmed gear boc sliping. Installed a NEW ONE (IAC manufactured) and adjust everything.. Normal conditions atv17h15m UTC |
None |
Edit |
Tenerife |
|
| 1970-01-01 |
|
|
|
|
None |
Edit |
all |
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