ENR CTIO Blanco 4-m 2024-04-18

Night report does not allow to "add another program". Thus, the details of the two programs observing tonight are provided in the Comments section.

Half an hour lost during the first half of the night due to problems of the system writing the CCDs data (image 1289938) and image quality issues.

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KV: issue referred above is related with a extrange pattern observed in focus CCDs FS4 and FN2. SISPI was restarted but pattern continues. Since science CCDs were ok and image quality was good we decided to continue with the observing. The pattern seems to dissapear by itself after image 1290000 (around 2am)

Image  *938 was missing CCDs in backplane 4. A configure was enough to bring them back.

While doing support to the observer in first half (who was observing from Tololo) I realized that the remote observing through Zoom was extremely slow, similar to what we experienced last Monday (ITOps-12261). In particular the vncviewer was extremely slow. So slow that I could not display images. The SISPI GUIs also lagged and did not refresh automatically. Under these conditions it is not possible to do remote observing.

I came to the office to test observing from here and everything was working fine and at a good speed. I tried to setup the remote observing using lasrem0 as the Zoom host, but Zoom decided it needed an upgrade which I was not able to do. A ticket to ITOps was issued (ITOps-12313).

I ended up volunteering to do the observations for the second-half team.

It should be a priority to recover remote observing during daytime. Thanks in advance!