MagAO-X 2025B Day 5: the gift that keeps on giving

And now it falls to me to write today’s blog post. The plan for the day was simple enough: adjust the focus on the science cameras and then pack up the instrument for its move to the aux building. However, while one of our fresh postdocs succumbed to the infamous Haffert disease and stayed up until 5 AM taking flat fields, we discovered that with the instrument’s recent changes, we were actually seeing some unexpected vignetting on the science cameras.

Credit: Miles Lucas

After a vigorous morning of re-aligning the beam and removing most of the vignetting (it actually went pretty smoothly, though it did eat up a decent chunk of time), there was unfortunately no time left to refocus the science cameras. MagAO-X had an appointment with some professional riggers to be moved up the mountain, and the first step was to remove all the cables.

Grad students working
Post-docs supervising (credit: Jared Males)

And then it was time to move MagAO-X out of the clean room, wrap up the “gift,” and do some serious rigging to get her ready for the trip up the mountain.

All in all, it was a very successful day, and we’re more than ready to set up the instrument at the telescope and begin our first night of observing. In the meantime, we’ve had some new arrivals up the mountain and with even more reinforcements on the way:

Finally, the day was blessed with the first official viscacha sighting.

Song of the day:

A theme song for moving the instrument out of the clean room and up the mountain.

Fact of the day:

Any scramble of a 3×3×3 Rubik’s Cube can be solved in 20 moves or fewer. The highest number of moves required for an optimal solution is often referred to as God’s number in the community.

MagAO-X 2025A Day 16: Excellent Extreme Experimenting and Engineering

Today the honour of blogging is all mine (Matthijs). A few of us went up before dinner to start preparing for a busy night full of experimental engineering observations (in particular Sebastiaan after he had stayed up until 10.30am to align VisX again). During daylight we of course managed to enjoy the company of some of the cute critters around here.

Sebastiaan started out the night with some observations of Betelgeuse, until it got too low and the ADCs which we only noticed because of our most underrated camera (which deserves more praise). After that, Elena spent some time looking at the self coherent camera (SCC) imaging.

During this observing run Sebastiaan and Josh have attempted multiple times to use EFC for some deep dark hole observations of Alpha Centauri (in order to please Jared). These observations have been tarnished by bad seeing, bad calibrations, fluctuations in the laser power and alignment issues. Here’s an impression of what that did to Sebastiaan:

Sebastiaan getting headaches thinking about how to get EFC to work

However, today was the day that all the stars aligned, good seeing, good calibration, good alignment (scripts) and it finally worked.

Diggy diggy

Eden has been looking at some donuts all week (no one knows why) but she’s finally figured out to turn these donuts into some (possibly) correct Strehl estimates (camtip FTW).

Eden and her deep fried dark holes

Myself, I interjected myself between some observations just to try out my semi-analytical FLOWFS control loop (of which I forgot to take a picture…).

Elena also managed to get some pretty PIAA observations.

In conclusion, we are doing great and if I had to summarise it in a movie quote I would say: “Desert power” – Dune 2021 .

Song of the Day

Someone mentioned potentially observing a target with 1612 in the name (or I might have imagined it) but this song has been stuck in my head all night. Enjoy!