Date
Name
Other Observers
Instrument
Hours Observed
Hours Lost
Reason
Observing Program
11/16/2021
Javier Licandro
Hissa Medeiros
Andor camera (JKT)
0
12
Other
The observatory closed due to volcanic eruption
11/22/2021
Nuria Torres-Albà
Dieter
SARA ORM
0
12
Other
We could not observe due to the active volcano.
11/12/2021
Kurtis Williams
none
Andor
0
12
Other
Observatory closed due to volcanic eruption. Suggestion: GUI with option to turn plate tectonics off or on.
11/13/2021
Kurtis Williams
none
Andor
0
12
Other
Observatory closed due to volcanic eruption
10/09/2021
Kurtis Williams
nobody
Andor
0
12
Other
Was hoping to do H-alpha imaging, but was stymied by telluric silicate dust emission.
10/06/2021
Ted von Hippel
students
imaging
0
12
Other
Not opening due to volcanic ash risk.
09/03/2021
XIANMING HAN
none
CCD
6
0
No problems to report
eclipsing binary
09/03/2021
XIANMING HAN
none
CCD
4.5
0
No problems to report
eclipsing binary, sharing the night
09/02/2021
XIANMING HAN
none
CCD
8
0
No problems to report
eclipsing binary
09/01/2021
XIANMING HAN
none
CCD
7
0
No problems to report
eclipsing binary
09/22/2021
Tom Rutherford
None
CCD
0
8
Clouds
Overcast, high humidity.
09/20/2021
Roi Alonso
Lisa Altinier
Ccd
9.5
0
No problems to report
WD photometry. Avoided HA larger than 3h, and problems with tracking.
09/21/2021
Tom Rutherford
None
CCD
9
0.25
Equipment Failure
M31, Asteroid. Had to do a single restart at an hour angle of around +3 (not unexpected), but no issues other than that. A mostly uneventful night (which is a very good thing). No issues from the volcanic eruption.
09/18/2021
Javier Licandro
Hissa Medeiros
Andor camera (JKT)
8
0
Other
Asteroid photometry. No problems to report
09/18/2021
Núria Torres-Albà
Dieter Hartmann
SARA ORM
7
2
Software/Control PC Issues
Clemson University observations of high-z blazars At the beginning of the night, software crashed when trying to observe using a filter. Sequence tool message was: 'Filter Wheel Failed'. After that, software crashed. We did a full restart, and the same issue occurred. We contacted Peter and Brian, who fixed the issue remotely. The rest of night was smooth.
09/16/2021
Alex McDaniel
Dieter
Andor CCD
0
10
Humidity
Blazar Photo-z measurements. Unable to open/observe due to bad conditions (humidity/rain, wind, dust).
09/14/2021
Todd Hillwig
None
Andor CCD
9.5
0.5
Software/Control PC Issues
I could not control either the telescope or camera computers with either VNC or Radmin. Brian Brondel rebooted both computers remotely and they worked well after that.
09/12/2021
Javier Licandro
Hissa Medeiros
Andor camera (JKT)
0
8
Other
Asteroid photometry. The humidity changed over the night and reached the limit values. Beyond that, I had connections problems. I did connect on the computers, but these did not respond to my commands.
09/11/2021
Roi Alonso
Lisa Altinier
ccd
6
2
Equipment Failure
WD photometry. Tracking issues after the first half of the night, getting more and more frequent until we surrendered (tracking failing only few minutes after a full restart sequence).
09/11/2021
Saida Caballero
Fowler, Gokuldass, Van Putten
CCD
1.5
10
Equipment Failure
Massive star survey. Telescope would not accept slew command and returned a "Telescope unable to slew due to equipment failure." Moving the telescope with the hand paddle seemed to work but was not practical. Tried a simple restart and still had the same error.
09/09/2021
Judith Provencal
none
Andor
0
9
Other
too dusty to open
09/09/2021
Andy Baran
Tomomi Otani
Andor
9
1
Equipment Failure
1hr lost due to telescope failure, (frequently stops tracking after HA=2)
09/07/2021
Andy Baran
Tomomi Otani
Andor
9
1
Equipment Failure
The telescope keeps stopping after HA=3hrs again.
09/06/2021
Andy Baran
Tomomi Otani
Andor
9
1
Equipment Failure
The telescope keeps stopping after HA=2hrs, and this issue becomes very severe after HA=3hrs. Cycling ACE control cabinet power helps to get the telescope back in tracks but this task gets very irritating when one needs to do this every minute or so.
09/04/2021
Andy Baran
Tomomi Otani
Andor
8
0
Equipment Failure
The same tracking issue happened at HA=2hrs. The telescope just stopped tracking and cycling the ACE cabinet power fixed the issue. The camera was taking images even though the D drive was full and the images were not saved. No notification showed up, so be careful.
09/03/2021
Andy Baran
Tomomi Otani
CCD
6
2
Clouds
Cloud cover in the evening and during first 2 hours, the telescope stopped tracking right after HA=2hrs. restarting all ACE (including control cabinet) helped.
08/29/2021
Javier Licandro
Hissa Medeiros
Andor camera (JKT)
3
5
Equipment Failure
Asteroids photometry. Problems with the tracking after few hours. I had to fully restart the software a few times, but it did not fix the problem.
08/29/2021
Saida Caballero
Norton, Gokuldass, Kamp
CCD
6
6
Other
B star monitoring Dust counts were too high at the beginning of the night.
08/29/2021
Tom Rutherford
None
CCD
8
0
No problems to report
M31, Landolt fields. No problems at all-- everything worked well.
08/27/2021
William Keel
2 cats
Andor CCD
8
2
Software/Control PC Issues
Galaxies in H-alpha. Focus=101500, guider focus=1000. Initially could not control QSI guide camera. Brian and Peter got it connected, but then nonsense offsets were shown on the graph and any guide move stopped the drive (additional drive stops at all declinations around 3 hr west). Late in night, saw inconsistent count rates between frames even when GTC camera did not show clouds.
08/25/2021
Lisa Altinier
Roi Alonso
CCD
7
2
Equipment Failure
White Dwarf photometry. Tracking problems from the middle of the night.
08/25/2021
Alex McDaniel
Dieter Hartmann
Andor CCD
8
2.5
Equipment Failure
Blazar photo-z measurements. Technical issues: Had issues with tracking, and ultimately had to restart the software a few times to get things working. On one reset the node service wouldnt shutdown/startup properly but Paul and Brian helped resolve this. After that no other issues for the remainder of the night.
08/20/2021
Todd Vaccaro
None
Andor CCD
0
8
Other
Never opened due to dust. NOT weather page never fell below 30, but there were several domes open throughout the night including NOT. The site map never showed NOT had dust warning, only GTC showed it. The mirror cover was showing as open when I logged on and not knowing if there's an issue there I left as is. I only took bias frames.
08/18/2021
XIANMING HAN
none
CCD
2
6
Other
1. Dust. 2. Telescope keeps loosing tracking. DEC was 46 degrees, air mass ~1.2 when this happenned.
08/17/2021
Ken Rumstay
None
CCD
0
9
Other
Too much dust in the air (24-38 micrograms per cubic meter) to open dome. Gave up an hour before sunrise.
08/15/2021
Javier Licandro
Hissa Medeiros
Andor camera (JKT)
3.5
4.5
Equipment Failure
We observed about 3.5 hours until the tracking start to fail. I did the full restart two times, but it is not fixed the problem.
08/14/2021
Lisa Altinier
Roi Alonso
CCD
3
5
Equipment Failure
WD photometry. After about 3h of observations, tracking started to fail, and became unbearable shortly after, lasting only a few minutes after RA/Dec resets, and same after full restarts.
08/14/2021
Martha Leake
none
Andor
4.5
4
Clouds
Asteroid photometry. Dust at 27-23 at start of night, stable most of evening; after I closed b/c of clouds, aerosols increased to 35 suddenly. Clouds interfered for at least half of my 4 hours. No tracking problems, but incomplete slew ("unable to complete slew...") message forced a full restart, and a re-setting my protocols. File space disappeared without warning, so all asteroid files and later darks were lost. Slewing was fine after restart.
08/12/2021
Ken Watanabe
Nicolas RImbert
CCD
3
0.5
Equipment Failure
Blazars. Stopped tracking at the end.
08/11/2021
Todd Hillwig
None
Andor CCD
7
1
Equipment Failure
At the beginning of the night telescope tracked for about 30 minutes without issue on a target while using autofocus and waiting for twilight to end. Within 10 minutes of starting guiding, tracking turned off. After full restart didn't use guiding and tracking only turned off two more times (both very close to airmass 2 in the west, though).
08/10/2021
Ken Watanabe
Nicolas Rimbert
CCD
6
1
Equipment Failure
BL Lac and other Blazars. Telescope stopped tracking.
08/09/2021
Michael Fauerbach
NA
CCD
6
3
Equipment Failure
Asteroid photometry The first 3-4h were great, the telescope pointed and tracked fine, but then it stopped tracking. The usual reboot fixed that, but only for a short while.The period between the loss of tracking became shorter and shorter. After 5 reboots, it would not even track for a single exposure.
08/08/2021
XIANMING HAN
none
CCD
4
4
Equipment Failure
eclipsing binary, jupiter The telescope lost tracking often. It lost tracking, but displays it was still tracking, and could not slew. Only full restart will restore tracking.
08/07/2021
Yong Sheng
Dieter Hartmann
RM griz
7
3
Equipment Failure
The dome didn't move as the telescope moves. The tracking was also done.
08/06/2021
Stephen Gillam
None
Andor camera
5
5
Software/Control PC Issues
The system worked well until we got to about 1hr and 20 mins west of the meridian. The scope was at an airmass of 1.12 and an altitude of ~62 deg. It was no where near any of the limits. Then, the scope suffered the first of five episodes of tracking failure and/or the "unable to slew due to equipment failure". In the first two instances, reselecting the target and slewing (the short distance) to it was sufficient to get it tracking again. Over the next three hours the tracking failed three more times with the "..due equipment failure" message. I notices that the not only was the RA tracking not working, but the the scope was also drifting in declination. These episodes were fixed by doing the full ACE restart procedure. Except that the filter wheel GUI on the camera computer also stopped working during the fourth episode. This resulted in a loss of filter and other info. in the file headers. During the fifth instance, the filter wheel GUI went away and could not be coaxed into starting up again. I tried two full restarts for this one. I was able to get bring the telescope control up again and park the scope. During two of episodes the camera GUI froze. It displayed the following error message. "tr1::bad_weak_ptr." Even after the full ACE restart procedure the old instance of the ACE control system was still present. It would crash and go away only when I clicked buttons on the service selector. The, a new instance of the camera control could be started.
08/05/2021
Todd Hillwig
None.
Andor CCD
2
7
Equipment Failure
Nearly complete waste of a beautiful night. Tracking turned off repeatedly. It took four complete restarts to finally get the telescope to keep tracking for more than 10 or 15 minutes. Observed for 2 hours and tracking turned off again, repeatedly. Three more complete restarts and I finally gave up. Tried several positions on the sky, with no success. Even when it was tracking it didn't track well. With the guiding on (which it didn't seem was very effective), the telescope drifted by several arc seconds every ten minutes or so. Also, the "Park" entry under "Presets" sends the telescope to the wrong position: it sends it to an RA of 0:00:00 NOT an HA of 0:00:00...and leaves the telescope tracking, which is obviously very bad. Oh, and the mirror covers never read closed, still read "closing."
08/03/2021
Roi Alonso
Lisa Altinier
CCD
3
5
Wind
First half of night with high wind gusts. Second part ok, with already known problems. Tracking was difficult/impossible at end of night, too many RA resets needed. Not clear status of mirror petals, they seem to be open, but closing them takes forever and seems not to have an effect (opening again is almost immediate).
08/04/2021
Tom Rutherford
None
Andor CCD
8
0.5
No problems to report
M31, Kepler exoplanet. Had to do three restarts at around 2:30 UT but that is fairly typical behavior so no real issues to report-- an uneventful night.
07/30/2021
Javier Licandro
Hissa Medeiros
Andor camera (JKT)
6
2
Other
I began the observation night very well without problems. In the middle of the night, it was necessary to do the full restart because the slew shows me an error (unable to complete the slew due to an equipment error), I did a full restart again and it was fixed. The big problem was at the end (close to 03:00 UT), it was necessary to do the full restart two times, and it was impossible to continue the observation. I finished because the tracking did not work.
08/02/2021
Todd Vaccaro
N/A
Andor CCD
5
3
Equipment Failure
Eclipsing binaries. Missed early flats due to telescope RA not reporting correctly to fits headers, which apparently is only occurring when tele is idle. Mirror cover was saying "closing" when I first logged on and continued to do so after I closed. I lost the majority of an eclipse egress due to tracking failures (over 5 times before I gave up on the target). It was failing ~+2 hrs HA at +78 deg. A full reset was needed to move the tele anywhere as it kept reporting an equipment error. After a full reset I could reacquire the target, but it would produce trailed stars after a few frames. When I went to another object that had yet to transit it started doing the same thing at HA 00:15:00. Something wrong on W side of mount?
07/30/2021
Keefe Kamp
None
CCD
0
10
Other
Cyg X-1 and Be Star Observations Planned but was too dusty to open
07/29/2021
Keefe Kamp
None
CCD
5
1
Equipment Failure
Cyg X-1 and Be star observations. Problems with petals. where it would continuously say closing but would not close. Also when telescope starting tracking it would change from open to opening but everything appear normal. Full restart fixed both issues
07/28/2021
Núria Torres-Albà
Dieter Hartmann
SARA ORM
6.5
1
Software/Control PC Issues
Clemson University observations of high-z blazars. Problems: -Computer PC was unresponsive at the beginning of the night. Called Brian and he rebooted it. -Tracking stopped working (could see star traces on the image). Stopped tracking and attempted to restart it, but 'Slew Telescope' window showed an error (Unable to complete slew due to an equipment error). Restarted the system as usual (Full Restart). Problem persisted. -After restart 'Mirror Cover' window was stuck in 'Opening' for almost 5min. -Restarted once more. This time, no issue with mirror covers. Problem was only fixed for one single exposure (5min) and then returned. -Restarted a third time, and switched to a higher altitude source. Tracking worked afterwards.
07/27/2021
Yong Sheng
None
RM griz
0
10
Wind
Clemson University blazar study. The wind speed is over or around the threshold.
07/25/2021
Todd Hillwig
None
Andor CCD
9
0
Other
At the start of the night when I opened the dome, it read as opening, but never got to "Opened." Restarting the software fixed this. The telescope tracking was not great. Five minute exposures showed drifting. There is no option to open the Guider GUI, so I couldn't guide. When I sent the telescope to Park position, it went to the correct place then started tracking. Had to hit Cancel to get it to stop tracking. And after closing the dome, it says "Doors ajar."
07/22/2021
Roi Alonso
none
CCD
4
4
Clouds
WD photometry, no filter, focus around 103400. Full restart needed to be able to move the telescope at the beginning of night. Telescope stopped tracking around middle of night, but conditions were cloudy anyway.
07/18/2021
Robert Berrington
Todd Vaccaro
Arc Camera
0
9
Equipment Failure
Observatory closed due to mechanical failure...Did not open.
07/21/2021
Tom Rutherford
None
Andor CCD
6
2
Equipment Failure
H-alpha filters were missing (this was the most critical issue I had). Dome did not point with telescope at first, but got them re-synced. CCD computer gave only a black screen with no controls visible-- eventually came back, but was unresponsive (as if it were only an image of the screen instead of the screen itself)-- I was able to control the CCD through the Telescope screen. Usual multiple restarts when changing targets later in the night.
07/16/2021
Javier Licandro
Hissa Medeiros
Andor camera (JKT)
0
8
Equipment Failure
Equipment Failure. The problems with the mirror cover are not fixed.
07/16/2021
Martha Leake
none
Andor
1
7
Equipment Failure
Asteroid photometry. Was able to get biases, some darks, and flats (to be transferred later), but unable to get any stellar images because of problems with the mirror cover. I didn't fully know that it was fixed, but apparently was able to get light to the camera for my flats. The mirror cover never fully opened, but did shut down quickly. Dome azimuth was checked and improved with the Dome Azimuth restart. Ken Rumstay, Brian Murphy and Peter Mack all helped on various pieces of the problem. I was/am embarrassed that this was akin to forgetting to remove the camera lens cover. But the problem is tougher and will be looked at Monday. Good luck to all involved. (Dust was not a problem.)
07/12/2021
Roi Alonso
none
ccd
0
8
Clouds
As in previous reports, sky was cloudy and dust above 40 ugr/m3 as reported in the tng weather server. Did not try to open.
07/12/2021
James Webb
none
CCD
0
10
Other
Blazar microvariability. Lots of dust and sky was obscured on all sky cameras at the start of the night so I threw in the towel.
07/11/2021
Keefe Kamp
None
CCD
0
10
Clouds
Cyg X-1 and Be stars planned but was too dusty and cloudy to observe
07/10/2021
Ken Rumstay
None
CCD camera
5
3
Other
AGN monitoring program. No mechanical or software problems to report. Telescope pointing and tracking was excellent. High aerosol levels at start of night and then again just before morning twilight.
07/10/2021
Stephen Gillam
Thiyagarajan, Alamos, Nelson
Andor camera
0
10
Equipment Failure
r0Ap Telescope unable to slew due to equipment failure. This is presumed to be due to driving the scope to the west limit, reported last night (7/8 -7/9/21).
07/09/2021
Gillam
Pepe, Alamos, Thiyagarajan, Nelson
Ansor
10
0
Other
roAp stars. At the start of the night, the camera and telescope computers were locked up, We power-cyc;led them. The telescope control was then not talking to the hardware. We carried out the procedure to restart the ACE node services and the camera and telescope controls then worked. Shortly after this, the dome stopped moving. We recycled the Azimuth control and homed the dome. The dome the worked perfectly until about an hour before the end of the night. The dome again needed to azimuth-cycled and homed. This was successful. I then allowed the scope to reach the western limit. It is currently stuck there. Could you move the scope off the limit? - Thanks!
07/07/2021
Stephen Gillam
Lilyanne Pepe, Leila Alamos, Chloe Nelson, Aakash Thiyagarajan
Andor Camera
10
0
No problems to report
Image type header keyword is missing from FITS headers. roAp stars
07/06/2021
Xianming Han
none
none
0
8
Software/Control PC Issues
ACE was upgrading Windows 10, and after the upgrade, something went bad with the telescope.
06/30/2021
Javier Licandro
Hissa Medeiros
Andor camera (JKT)
8
0
No problems to report
No problems to report
07/02/2021
Lisa Altinier
Roi Alonso
CCD
7.5
0.5
Equipment Failure
Photometry of WD977. At the beginning of the night the dome didn't track with the telescope. A full reset was needed to correct it. The night was good.
07/02/2021
Yong Sheng
Dieter Hartmann
RM griz
9
0
No problems to report
Clemson blazar study. No problems to report. Everything worked pretty well.
06/29/2021
Lisa Altinier
Roi Alonso
CCD
7.5
0
No problems to report
Very defocussed photometric sequence. Good night, no problems. First night of observations of Lisa :-)
06/29/2021
Yong Sheng
Dieter Hartmann
RM griz
7
1.5
Equipment Failure
Clemson blazar study. When I started using the telescope, there is no source on the image. I restarted several times, the problem remained. After sending the dome back home, I saw sources on the image. I am suspecting there is something wrong with the dome, my guess is that the dome doesn't move as the telescope moves (even if I linked the dome.)
06/27/2021
Ross Silver
Dieter Hartmann
CCD
5
4
Equipment Failure
Photometric redshift of blazars. The dome did not track with the telescope. I reset the system multiple times and it did not fix the problem. By the end of the night, the dome would not move at all from 160 degrees azimuth.
06/23/2021
Brian Brondel
None
Andor Camera
6
0
No problems to report
Software upgrade & pointing model update
06/19/2021
Javier Licandro
Hissa Medeiros
Andor camera (JKT)
8
0
No problems to report
No problems to report
06/18/2021
Roi Alonso
none
ccd
0.8
7
Wind
Wind gusting above 45 km/h most of the night. Tried autoguiding, but no offsets were being sent back to telescope.
06/14/2021
William Keel
3 cats
Andor CCD
6
3.5
Equipment Failure
Dead quasar survey, nebulae. Focus 99940. Cloudy at sunset, cleared after twilight. Lost 1.5 hours of long exposures to tracking shutdown (we could really use an obvious indicator for that). Guiding worked very well even during intermittent clouds.
06/14/2021
Tom Rutherford
None
CCD
8
0.5
Software/Control PC Issues
Asteroid, M31. Other than a restart about 6 hours in, no issues to report.
06/12/2021
Alex
Dieter
Andor CCD
9
2
Software/Control PC Issues
Had to reboot following the instructions in the READ.ME a couple times which typically fixed any issues. At one point towards the end of the night (~5 UTC) even after rebooting the ACE program would crash while I was trying to setup an observation.
06/11/2021
Martha Leake
none
Andor
8.3
0
Other
Asteroid photometry. No major problems. One instance of "ace-client-gui exec stopped working" on telescope computer. Closed the program, noted red exes; did a quick restart and that fixed it. Tracking did not stop and dome remained open. One instance of lost tracking; reset coordinates, slewed and continued. Good weather, no dust this night
06/10/2021
William Keel
3 cats
Andor CCD
0
9
Other
Closed due to high dust levels.
06/09/2021
William Keel
2 cats
Andor CCD
0
9
Other
Stayed closed due to high dust levels.
06/07/2021
Javier Licandro
Hissa Medeiros
Andor camera (JKT)
0
8
Humidity
We had clouds at the beginning of the night. After the humidity grew up and reaches values bigger than 70%.
06/07/2021
Ken Watanabe
Nick Rimbert
N/A
0
8
Clouds
Blazars
06/04/2021
Roi Alonso
none
CCD
8
0
Software/Control PC Issues
WDs, empty filter, focus 100574. At some point, ACE connector client in telescope computer with all "x" in red, but system kept tracking and responding from the camera computer. Observed with the camera computer, and at the end of the night killed the ACE client task in the telescope computer to go back to "normal".
06/02/2021
Judi Provencal
none
Andor
8
0.3
Software/Control PC Issues
Observed the DBV GD358. There were issues again tonight with the telescope gui. It stopped several times. The program seemed to hang twice, requiring stopping the program via the Task Manager, and then restarting. The first time the program hung, the telescope stopped tracking and the dome closed.
06/01/2021
Judi Provencal
none
Andor
8
0
Software/Control PC Issues
Observed the DBV GD358. Minor software issues include the telescope ace gui crashing three times, and issues with the dome tracking. No observing time was lost.
05/31/2021
Tom Rutherford
None
CCD
8
0.5
Software/Control PC Issues
Open Clusters. Had to restart everything on one occasion-- everything was fine except unable to reach the power switch to recycle it due to a constant warning message from the browser about the connection being insecure. Everything did fine without resetting that part.
05/30/2021
Todd Vaccaro
N/A
Andor
7.5
0.5
Software/Control PC Issues
Eclipsing binaries and variable stars. Dome had trouble tracking tele; closed/reopened, homed, and finally worked. ACE crashed when trying the focus routine, required a simple restart of ACE. Lost an eclipse as tracking failed at HA +3:50:00, tele wouldn't move, kept saying equipment failure, so a full restart of tele/ccd software/nodes required; happened again middle of the night, same reason. Keyboard on CCD must've been set to Spanish layout, I couldn't type login/pw to my Box folder with browser b/c shift+2 would give " instead of @ etc...Maybe someone can set it back to US standard?
05/28/2021
Todd Hillwig
None.
Andor CCD
5
0
No problems to report
PN central star, only second half of the night.
05/25/2021
Todd Hillwig
None
Andor CCD
9
0
No problems to report
PN central stars.
05/25/2021
Todd Hillwig
None
Andor CCD
8
0
No problems to report
PN Central Stars
05/19/2021
Javier Licandro
Hissa Medeiros
Andor camera (JKT)
4
4
Software/Control PC Issues
We have some problems with the GUI from the telescope computer. It was showing some bug and close the connection. The first time, at the beginning of the night, the problem was fixed. The second time, later, the movement of the telescope was not answered more and we finish the night.
05/23/2021
Roi Alonso
none
CCD
0
8.5
Wind
Wind gusting above 45 km/h all night.
05/23/2021
Alex
Dieter
Andor CCd
6
2.5
Software/Control PC Issues
Mix of software issues and cloudy weather.
05/21/2021
Roi Alonso
none
CCD
8.5
0
No problems to report
WDs, empty filter, focus 101500. No autoguiding.
05/21/2021
Martha A. Leake
none
Andor
1
8
Other
Asteroid photometry. Calibration images(biases, darks, flats) made but I closed dome when I noted on NOT that aerosols were high. They remained high for 7 hours. Lost connection to saracamera repeatedly (radmin), but able to connect. Secured telescope at stow position. My computer then decided to reset. Programs had disconnected and weather had not changed.
05/19/2021
Yong Sheng
Dieter Hartmann
RM
0
10
Wind
The wind speed was very high initially. Though it dropped a little later, but it was still around the threshold values. So I was not able to observe for the whole night.
05/18/2021
Todd Christopher Hillwig
None
Andor CCD
9
0
No problems to report
PN central star photometric monitoring.
05/16/2021
Roi Alonso
none
CCD
8
0.5
Equipment Failure
WDs. Tried once more autoguiding with no success, both setting binning 2, all regions to 1, and auto ROI, or manually selecting a 400x400 box around a star in the guiding camera. No clear idea when hit the "stop" button at the guiding sequence to avoid the "unknown error" message that impedes to restart a sequence (e.g., changing exptime), and needs a full restart to try again.
05/14/2021
Stefan Geier
none
ARC CCD Camera
8
0.3
Equipment Failure
At the beginning of the night (around the end of astronomical twilight), the telescope suddenly stopped tracking, and when I tried to point again, it failed with a message about an "equipment error". I then did the "full restart" which is described in the readme, and after that, it worked fine again.
05/11/2021
Chloe Nelson
Stephen Gillam
Andor Camera
11
2
Equipment Failure
ROAP Stars <3 We conducted two "azimuth recycles" (found in the notes) during our observation and one "full restart" (also found in the notes).
05/12/2021
Chloe Nelson
Stephen Gillam and Kiara Richardson
Andor Camera
13
0
No problems to report
ROAP Stars No problems :))
05/13/2021
Chloe Nelson
Stephen Gillam and Kiara Richardson
Andor Camera
13 hours
none
No problems to report
ROAP Stars No problems :)
05/09/2021
James Webb
Viviana Arroyave, Luna Webb, Sparkle Webb
CCD
9
0
Other
blazar microvriability Wasn't able to park telesope in recommended position. It kept telling me that location was out of limits, so I left it zenith parked.
05/09/2021
Todd Vaccaro
None
Andor CCD
7
3.5
Humidity
Eclipsing binary; ACE crashed twice, but simple restart seemed to fix, but I had to reset most observing parameters; Humidity over 80% during last 3 hrs and never dropped to reopen.
05/07/2021
Ross Silver
Dieter Hartmann
CCD
9
0
No problems to report
Photometric redshift of blazars.
05/05/2021
Ed Albin
Amy Lovell
CCD
9
1
Software/Control PC Issues
Imaging training, M101 galaxy. Note: Focus setting for BVR filters was 98300. Focus setting for Empty filter was 100400. Software crashed "Ace Client software not working." Rebooted to restore session.
05/02/2021
Javier Licandro
Hissa Medeiros
Andor camera (JKT)
7
3
Humidity
The humidity at the beginning of the night varied between 70% and 100%. The humidity was stable after 00:00 UTC.
05/30/2021
Todd Hillwig
None
Andor CCD
0
10
Clouds
High humidity early followed by clouds.
05/01/2021
Stephen Gillam
Savannah Caldwell, Leila Alamos, Aakash Thyigarajan, Lilyanne Pepe, Chloe Nelson Kiara Richardson
Andor CCD
11
4
Equipment Failure
ROAp stars. The dome azimuth rotation stopped working around 5 AM. We carried out the following procedures. 1. Full ACE client restart. Three times. No joy there. 2. Azimuth recycle. Twice. It worked on the second attempt. Dome did not need homing. The first attempt likely failed because we turned OFF the recycle, then turned it on.
04/28/2021
Saida Caballero
Kamp
CCD
0
10
Clouds
Massive star survey
04/26/2021
Roi Alonso
none
CCD
6
2
Humidity
WDs. Tried autoguiding without success. Setting binning to 2, regions all to 1 and "auto ROI" worked for a few images, then the star moved out of the field. Making any change in the autoguiding setup typically involves a full reset. Without autoguiding I noticed some DEC sudden jumps (about 30 px) during the night, probably the reason of the failure above. Dome got stucked at az aprox. 330, and the end of the night the humidity was unstable.
04/26/2021
Ken Rumstay
None
CCD
10
0
No problems to report
AGN monitoring program. Had to recycle dome azimuth power once.
04/22/2021
Javier Licandro
Hissa Medeiros
Andor camera (JKT)
8
2
Other
The weathering at the beginning of the night was good, but it was getting worse until be impossible to observe (the seeing reached 5.8'').
04/22/2021
Todd Hillwig
None
Andor CCD
9
1.5
Other
some time lost to tracking turning off for targets in the northwest at an airmass of about 1.7 One hour lost to clouds at the end of the night.
04/21/2021
Saida Caballero
Observational Astronomy class
CCD
10
0
No problems to report
End of the semester observing for class. Did not try to use guider due to the previous nights report.
04/18/2021
Roi Alonso
none
ccd
7
1
Equipment Failure
WDs, no filter. Focus 100426. Tried autoguiding, but despite having an apparently good star in the window, there were no offsets sent. Stopping the guiding sequenece to e.g. increase the exp. time makes the autoguiding camera unresponsive and needs a full reset to get it back. Observed with no guiding. Tracking issues (stopped in RA) at end of the night, not solved with the usual RA reset; needed a full reset.
04/17/2021
Martha Leake
none
Andor
9.75
0
No problems to report
Asteroid photometry for light curves and selected objects for Stars and Galaxies class. No problems. Weather OK with some wind. Transfer in progress.
04/15/2021
Javier Licandro
Hissa Medeiros
Andor camera (JKT)
8
2
Other
The humidity raised to 100% during a couple of hours. After the humidity dropped and stabilized, it was possible to observe normally until the end of the night.
04/05/2021
James Raymond Webb
none
CCD
0
10
Connection Issues
local network down
04/14/2021
Michael Fauerbach
NA
CCD
2
8
Other
Misunderstanding about availabilty of the night. CCD computer is very slow and has warning that disk space is low. Deleted all my files at end of the night. Autofocus failed multiple times. MaximDL has issues. I assume this is all due to the full disk space?
04/12/2021
XIANMING HAN
none
CCD
0
10
Clouds
The computer disks are quite full. Please take a look at it.
04/08/2021
XIANMING HAN
none
CCD
0
10
Clouds
none
04/07/2021
XIANMING HAN
none
CCD
0.25
10
Clouds
eclisping binary
04/11/2021
Todd Hillwig
None
Andor CCD
0
10
Humidity
None, high humidity all night.
04/10/2021
Michael Fauerbach
NA
CCD
8
2
Humidity
asteroid photometry. High humidity, clouds just before sunrise
04/05/2021
Michael Fauerbach
NA
CCD
10
0
No problems to report
Asteroid photometry
04/08/2021
Watanabe
Nick Rimbert
CCD
2
8
Software/Control PC Issues
04/06/2021
William Keel
2 cats
Andor CCD
0
10
Clouds
Dead quasar survey. "Measuring optical depth profiles of clouds" would have worked better.
04/02/2021
Roi Alonso
none
CCD
6
3
Clouds
WDs photometry. Increasing cloud coverage. Autoguiding camera becomes unresponsive if for some reason there is a need to stop and re-start the guiding sequence (e.g. change exp. time, or location), and needs a system reset. Doors ajar at the end, and stacked in Az- A dome az recycle for a couple of minutes solved both.
04/02/2021
Tomomi Otani
Brian, Lorena, Carina, Sima
CCD
8
0
No problems to report
Rotation period and pulsation period determination for Gyrochronology and Timing method. Everything was working well.
04/01/2021
Tomomi Otani
Brian, Lorena, Carina, Sima
CCD
8
0
No problems to report
Rotation period and pulsation period determination for Gyrochronology and Timing method. Everything was working well.
03/31/2021
Todd Hillwig
none
Andor CCD
10
0
No problems to report
PN Central stars. The method Brian showed me for using the guider worked without issue all night.
03/30/2021
Todd Hillwig
astronomy undergraduates
Andor CCD
9
1
Equipment Failure
Astronomy student projects, PN central star photometry. Guide camera was not relaying information to telescope. Brian logged on and he showed two things to overcome this problem (that I've encountered several times previously): set binning to '2', then set all ROI boxes to '1' and use the "Auto ROI" option. This worked for the rest of the night.
03/30/2021
Roi Alonso
none
ccd
6
4
Humidity
WD photometry. Bad weather first half of night. Autoguider not sending offsets at beginning, a full reset solved it.
03/23/2021
Keefe Kamp
Caballero, Zamora
CCD
11
1
Software/Control PC Issues
At the beginning of the night, ACE crashed when taking flats and had to perform a full restart. The guide camera stopped working partway through the night had to do a full restart 2x to get everything back to normal. When a minor planet is used as a target the Telescope position pane constantly resizes to the entire width of the screen.
03/16/2021
James Webb
Viviano Arrayave
CCD
10
0
No problems to report
Blazar microvariability
03/16/2021
James Webb
Viviana Arroyav
CCD
10
0
No problems to report
Blazar microvariability No problems.
03/22/2021
Javier Licandro
Hissa Medeiros
Andor camera (JKT)
10
2
Software/Control PC Issues
We did have problems at the beginning of the night with the control of the telescope, but it was fixed.
03/09/2021
Javier Licandro
Hissa Medeiros
Andor camera (JKT)
10
0
No problems to report
No problems
03/22/2021
Tomomi Otani
Brian Herbster, Sima, Lorena Sanabria
CCD
8.5
1
Equipment Failure
photometry time series to find the star rotation periods for Gyrochronology. The telescope suddenly started moving once and reached the software limit. So we needed to cycle the control cabinet. Brian helped us and moved the telescope back using the control pad (Thank you so much, Brian!) and we could start our observation again.
03/20/2021
Nuria Torres-Alba
Alex McDaniel, Dieter Hartmann
ORM
9
0
No problems to report
Clemson University, Blazar Observations, Photo-z measurements
03/19/2021
Roi Alonso
none
CCD
9
0.5
Equipment Failure
WDs observed with guiding. After a full reset before starting obs, everything running smoothly. Some tracking losses at the very end of the night, when the target was at around 35 degs above the horizon. RA-DEC resets solved them for a short time.
03/17/2021
William Keel
3 cats
Andor CCD
10
0.3
Equipment Failure
Dead quasar survey. My first time with new all-on-one guider panel. It was much more reliable - lost control once and had to restart software all around to restore it. Excellent night. BVR focus 97353, guider focus 330.
03/16/2021
Tomomi Otani
Brian Herbster, Lorena Sanabria
Andor CCD
9
0
No problems to report
Rotation periods search for gyrochronology. Good night and no problem to report.
03/14/2021
Michael Fauerbach
NA
CCD
8
2
Clouds
Lots of clouds early on. Cleared up towards the morning. I turned off the cooler -not sure if we still are supposed to do this or not.
03/11/2021
Todd Hillwig
None
Andor CCD
8.5
1.5
Equipment Failure
Tracking turned off six times. Did a full restart before the night began, then did another halfway through the night when the tracking turned off three times in less than half an hour. Tracking turned off twice after that. Clouds came in just before morning twilight.
03/10/2021
Amy Lovell
Lam Bradham
CCD
9
1
Software/Control PC Issues
Observing Demo with Students, things were great for hours (did a pre-emptive reset at the start of the night, and only needed to do one quick reset later), then Dome Vignetting started, and home didn't work after Azimuth recycle. I tested a couple of sources and though there may have been stars in them, they looked like flats, still well enough before dawn (and small enough moon) that they shouldn't. Otherwise no problems to report.
03/08/2021
Tom Rutherford
Henson
Andor CCD
0
8
Equipment Failure
High humidity and high wind delayed opening. Once both had dropped, I opened the dome, but never received a confirming "dome is open" signal-- it just kept showing "dome is opening." Same thing when I reversed this and tried to close the dome-- it just stayed on "dome is closing" without ever saying "dome is closed." I repeated this procedure several times, but with the same result each time. I don't think that the dome actually opened since when I tried to take an image it had no stars. Same thing later when I decided to give up and close down-- I got a perpetual "dome is closing" message. I took an image to verify that the dome was closed and it came out with no stars so it did seem to be closed.
03/07/2021
Javier Licandro
Hissa Medeiros
Andor camera (JKT)
0
12
Humidity
All night with 100% of humidity and hard winds.
03/06/2021
Michael Fauerbach
NA
CCD
0
10
Humidity
Never opened. I hit the trifecta with 100% humidity, high wind, and temps below freezing
03/05/2021
Roi Alonso
none
CCD
0
10
Humidity
windy and high humidity
03/04/2021
Tomomi Otani
Andy Baran
Andor CCD
9
3
Humidity
TESS follow-up observation. We needed to close the dome because of the humidity and cloud at the end (after 3:20 AM local time). When we stopped the observation, the ACE connector client had "no-response". The normal cycling process solved the issue. The best focus was 97800 with no filter.
03/03/2021
Stephen D Fowler
Kamp, Caballero
CCD
6
4
Equipment Failure
During observations, filter wheel got stuck and we were able to circulate power, but the issue was not resolved. On camera computer ACE connector client failed and restarted. Command sent to slew telescope, but nonresponsive. Dome was able to close.
03/02/2021
Michael Fauerbach
none
CCD
7
2
Clouds
plenty of clouds and Moon at 83% illumination. No technical issues to report.
03/01/2021
Tom Rutherford
Henson
Andor CCD
7
0.5
Equipment Failure
While changing filters at the beginning of the night, filter wheel #1 began cycling through all of the filters and not stopping. After two restarts it started behaving again and I had no further issues with it or with anything else for the rest of the night. No further issues of any sort.
02/26/2021
Saida Caballero
N/A
CCD
0
10
Other
02/27/2021
Yong Sheng
Alex McDaniel, Dieter Hartmann
RM
0
12
Humidity
Clemson University blazar study. The weather is not good for observation the whole night.
02/25/2021
Saida Caballero
Malagon,Kamp
CCD
0
10
Wind
ETC Class project. Winds were rather high and forecasted to be so the whole night, so decided not to open.
02/24/2021
Todd Hillwig
none
Andor CCD
0
12
Humidity
Opened long enough to get flats and started to get science images, but humidity jumped rapidly just prior to the end of evening twilight and stayed there all night.
02/21/2021
Ted von Hippel
Jack McDonald
imaging
0
13
Clouds
student observing for Observational Astronomy class
02/22/2021
Roi Alonso
none
CCD
9
2
Equipment Failure
WDs using autoguider. Had to restart the services to have the guide camera responding, but no problems after that. The dome az stopped responding at an az = 313. Recycling the az solved it. Last hour not used to get some sleep (and target had set).
02/20/2021
Yong Sheng
Alex McDaniel
RM-griz
0
11
Humidity
Blazar study We can't observe because of the bad weather (rain, high humidity and high wind speed. )
02/19/2021
Ken Rumstay
None
CCD camera
8
4
Wind
AGN monitoring program No problems to report; had to recycle the dome azimuth power twice. The telescope pointing and tracking were excellent. Closed dome at about 03:00 due to high winds.
02/17/2021
Jack McDonald, Ted von Hippel
Sarah Kokkinakas
imager
7
6
Clouds
Student projects identifying H alpha bright targets in WHaM beam and RRLs in a globular cluster. Although the dome was open for ~7 hours, the students obtained only perhaps 2 hours of useful data because of RA constraints on their targets and intermittent and worsening clouds. We nonetheless thank Kurtis W for turning over the night when he lost his local electron supply, as this was a useful student experience.
02/16/2021
Yong Sheng
Dieter Hartmann
SARA-RM
10
0
No problems to report
Clemson University blazar study
02/15/2021
James webb
Viviana Arroyave, Luna Webb, Sparkle Webb
CCD
0
10
Equipment Failure
Blazar Microvariability Observatory is still down.
02/14/2021
Kurtis Williams
none
Andor
0
11
Equipment Failure
Warm room PDU presumably still offline.
02/13/2021
Kurtis Williams
none
none
0
11
Equipment Failure
02/09/2021
Gary Henson
Rutherford
CCD
0
6
Equipment Failure
Warm Room PDU not accessible, filter wheels not responding, uncertain condition of icy dome.
02/08/2021
Martha Leake
none
Andor Camera
0
10.3
Other
Asteroid photometry and remote observing for class later. Never opened the dome. No connection issues to camera and telescope PC until I tried a full restart to solve the filter wheel access and locking. I was unable to restart the JKT Warm Room PDU . With recent snow and dome locked in position there may have been a power problem regarding the JKT Warm Room PDU access and filter wheel locking mechanism. (A quick restart didn't solve the problem, so I tried the full restart.) No observing possible until these problems are analyzed, fixed, and a clear go ahead is given. Brian was very helpful in explaining what may have happened.
02/05/2021
Javier Licandro
Hissa Medeiros
Andor camera (JKT)
0
12
Snow
Snow
02/04/2021
Roi Alonso
None
CCD
0
12
Snow
Bad weather
02/02/2021
Saida Caballero
Kamp
CCD
0
12
Connection Issues
Class observing. Was never able to connect to any of the computers. Seems to be a problem on the mountain side.
02/01/2021
Nuria
Yong, Alex, Dieter
ORM
8
2
Clouds
Clemson University observation of blazars. No problems to report.
01/25/2021
Ted von Hippel
none
imagining
0
12
Snow
Dome iced over.
01/31/2021
Ted von Hippel
Tomomi Otani, Brian Herbster, Carina Shanahan, Sima Vaidya, Jack McDonald, Sarah Kokkinakis
imaging
11
0.1
Equipment Failure
Shortly after 7pm EST, when selecting a filter, the filter wheel spun continuously for 5 minutes or so then stopped. It may have stopped on its own or from our second instance of hitting 'empty'.
01/30/2021
Amy Lovell
Kimbarl
Andor Camera
11
0.5
Software/Control PC Issues
Student training, images for analysis in lab Problems: tracking stopped mid-scan, I needed to do a full reset for that, and dome was finicky several times, did 3 dome/azimuth resets over the night, and homed the dome a few times in addition when dark stripes appeared on the side of the image
01/29/2021
Saida Caballero
Le, Kamp, Klare, Fowler
CCD
12
0
No problems to report
Landolt Standards. The DS9 window did not show counts when mousing over it, but simply closing and reopening seemed to fix it.
01/28/2021
Saida Caballero
Kamp, Zamora, Murphy, Malagon, Fowler, Le
CCD
12
0
Connection Issues
Standard star fields for calibration. The camera was not responsive when trying to take test images for evening flats. Had to restart and missed flats. Tried using the Guide camera, but it became unresponsive after the second star. Did not try to restart connection because did not want to waste more time. There appears to be aberration with the U filter. At first thought it may have been a tracking issue, but only seemed to affect U filter observations (perhaps a known problem), making the stars appear elongated, rather than the expected PSF. Used autofocus, and seemed to work pretty well.
01/27/2021
Roi Alonso
none
CCD
10
2
Equipment Failure
WDs photometry. System quite unstable. Telescope was out of limits on arrival, Brian and Peter connected to solve the issue rapidly. After about 2 h of observations with autoguiding, the main CCD stopped taking images without any error or warning. Reseting the system solved it. Slewing to a different target kept the DEC drive moving past the object, and had to cancel the slew command manually and repeat the pointing to avoid going out of limits. After retrying with the autoguiding (after a full reset), it only lasted less than 1 h, so I stopped trying, and spent the rest of the night without it. Even so, the acquisition stopped a couple of times without warning again. Finally, when sending the telescope to its park possition, the slew was aborted (as usually happened before), but I could not find the "RA/DEC reset" switches that typically solve the issue even after clicking at the radio buttons at the "ACE connector client" menu window and went for a full reset instead.
01/17/2021
James Webb
Viviana Arroyave, Luna Webb, Sparkle Webb
CCD
0
8
Snow
Observing Blazar microvariability,' Did not open the dome after consultation with observatory director. Someone left a message on the telescope computer that the dome might be It was possible the dome was frozen shut. Since the roads were iced over we decided it would be prudent NOT to try and open.
01/16/2021
Javier Licandro
Hissa Medeiros
Andor camera (JKT)
0
12
Snow
The telescope was frozen.
01/15/2021
Roi Alonso
none
ccd
0
12
Snow
Low temperatures and ice at the Mercator telescope webcams before sunset. The ING weather station looks frozen, the NOT is reporting high winds . Did not open, in case there is still some ice on the dome (could not find any webcam showing JKT, but it seems no telescopes are operating tonight). The different meteo stations seem affected (humidity from 6 to 100%, winds from 0 to 60 km/h, temps from -4 to 24 degrees)
01/14/2021
michael fauerbach
NA
CCD
0
12
Connection Issues
Connection issue and dome completely iced over.
01/13/2021
Ken Watanabe
Nick Rimbert
CCD
0
9
Connection Issues
Bad Wx and not able to connect. Mx aware of the issue.
01/11/2021
William Keel
3 cats
Andor CCD
0
12
Clouds
Dead quasar survey. If it wasn't the clouds, it was the humidity, and if not that, the leftover ice.
01/07/2021
Michael Fauerbach
NA
CCD
0
12
Humidity
Never opened, wet all night long.
01/06/2021
Judi Provencal
None
Andor
0
8
Humidity
Rain and humidity.
01/03/2021
Roi Alonso
none
CCD
0
12
Humidity
Raining.
01/02/2021
Javier Licandro
Hissa Medeiros
Andor camera (JKT)
0
12
Software/Control PC Issues
The telescope showed one error (on telescope position window - Telescope limits: Hardware HA/Az axis positive and Hardware Dec/Alt axis positive). I did the full restart two times and I try to send the telescope to zenith position, but the telescope did not move and it did not respond. Beyond that, all night was cloudy.
12/30/2020
Roi Alonso
none
CCD
0
12
Humidity
100% humidity.
12/29/2020
Alec Neal
Robert Berrington
ARC
7
3
Software/Control PC Issues
High humidity beginning the night. High aerosol throughout night. ACE client crashed a few times, required multiple resets and restarting telescope computer.
12/26/2020
Javier Licandro
Hissa Medeiros
Andor camera (JKT)
0
12
Humidity
The humidity was 100% all night.
12/23/2020
Tom Rutherford
Gary Henson
Andor CCD
11
0
No problems to report
M31, asteroid. No problems.
12/15/2020
XIANMING HAN
none
ccd
8
4
Clouds
eclipsing binary
12/22/2020
Ross Silver
Alex, Dieter
ORM
11
1
Humidity
Obtaining photometric redshifts of blazars.
12/21/2020
Javier Licandro
Hissa Medeiros
Andor camera (JKT)
12
0
No problems to report
No problems to report