Merry MagAO-Xmas, and a happy 2023A/B!

This year has been a wild ride, which is to say, kind of on par with a normal pre-pandemic year. Conferences were held, telescopes were observed through, new people joined the program in real life (rather than Zoom™) and it wasn’t a big deal.

This post is not a retrospective, however. This post is to document the making of shortbread llamas, for anyone who fancies one. (Also, I owe Chef David Verdugo of Las Campanas Observatory a recipe in our exchange.)

Llamalmond Shortbread Cookies

Yield: 8-10 llamas
Time: 1 hour + time to decorate
Special equipment: llama cookie cutter

Received as a Christmas present

For the dough

  • 1 stick of butter (113 g)
  • 1/2 cup powdered sugar
  • 1 cup all-purpose flour
  • 3/4 cup almond flour (or almond meal)
  • 1/2 tsp salt

For the icing

  • Powdered sugar
  • Food coloring
  • Cocoa (for brown icing)

Make the llamas

  1. Set your oven to 350ºF / 325ºF convection and line a cookie sheet with parchment.
  2. Beat together the butter and powdered sugar using a mixer on medium-high (scraping the bowl with a flexible spatula as needed) until completely combined, with a texture like creamy frosting.
  3. Switching to low speed, add the all-purpose flour, almond flour (or meal), and salt. Mix until just combined, adding water a teaspoon at a time if needed. The dough may be crumbly, but should hold together if you press it together by hand.
  4. Form the dough into a ball or log and wrap tightly, then pop it in the fridge for 30 minutes.
  5. Unwrap the dough and place it on a floured work surface. Roll to 1/2″ thickness. (If it’s too hard to roll out, give it a few good whacks with your rolling pin.)
  6. Cut out your llamas. A floured bench scraper or thin metal spatula will help you lift them off, and transfer them to the parchment-lined cookie sheet.
  1. Bake for 15-20 minutes, rotating the pan around the halfway mark. The llamas are done when they show a slight hint of browning on their edges.
And this is what you get if you don’t rotate halfway through. Darned ovens.
  1. Let them cool for 10 minutes before removing from the sheet, or until they’re at room temperature before decorating.

Decorate the llamas

Powdered sugar, sometimes called icing sugar, turns into icing with only the slightest encouragement. Mix your food coloring (or 1-2 tsp of cocoa powder) with 1/4–1/2 cup of powdered sugar, and dribble in water a little bit at a time, stirring until you get a decently stiff paste of the desired color.

Put the icing in piping bags if you have them, or small zip-lock bags if you don’t. Cut off the tiniest bit of the corner, and pipe a bit onto a plate to test it out.

Decorate as you wish! (The icing will be dry within an hour or so, but maybe don’t throw the llamas into a cookie jar until it is.)

Song of the Day

I apologize in advance, but this has been stuck in my head for going on two weeks now and needs to get out.

“Llama Song (Llama, llama, duck)” by some internet wag idk

Bonus Andean ~vibes~

“Relato” by CERO39 feat. Buendia

MagAO-X 2022B Day 9: MagAO-X 2022B Day 1!

MagAO-X is here on the mountain, and we have been working to unpack it since its arrival at 10am. As such, anyone looking for coherent prose in what follows is warned to expect disappointment.

We got pics tho.

This is not a pic.

Unpacking is dirty work, but it’s all worth it.

Our hands look like this:

So his hands can look like this:

Today was very “astronomy with hard hats”

But also “astronomy with cleanroom gowns”

There were occasional meetings of the two, even:

“Maggie” unpacked his new grating for VIS-X:

It was shiny:

shiny

The P.I. hugged his electronics rack once again:

MagAO-X let it all hang out:

The success of MagAO-X quite literally rests on students:

There was also a small earthquake, but it’s all good.

Song of the Day

We had 1975, now we got 1977. Ana Tijoux is a Chilean-French MC I used to listen to long before I ever visited Chile.

Trying to rap along with that is challenge mode for maintaining your Spanish-speaking skills. (I used to be able to…)

As a bonus, here’s her 2020 protest song that taught me “guanaco” is slang for the water cannon police use to disperse protests in Chile (because they both spit at you, get it?)

MagAO-X 2022B Day 5: ¡Ya basta!

The truckers are politely “only” causing traffic jams rather than a full blockade, but if you depend on freight vehicles for your business—or telescope operations—you’re still hamstrung by the fact that a ton of the trucks in Chile are busy blocking roadways and not shipping goods.

The government has read them the riot act and started detaining people. Negotiations continued today with some initial promising statements from the truckers. They continued until quite a late hour this Saturday only to remain stuck on the trucker union’s demand for government price controls on fuel. So it sounds like Sunday will remain truckless, and instrumentless.

On the plus side, we do not have thousands of tons of fruit in danger of rotting, or salmon that needs to be shipped immediately. We just sit in our rooms, screwing around doing important science stuff on laptops, and popping over to the lodge for our three square meals a day. It’d be quite relaxing, if it weren’t for the looming threat of losing telescope time worth roughly $50k a night—and the super intense compressed schedule to get on sky ASAP when the instrument gets here.

I don’t believe I used a blog post to announce our official patch design for 2022B, but now’s as good a time as any.

This is Gabriela the gata Andina (Andean mountain cat). The patch vendor did a great job simplifying my artwork, as always, but gave the cat a bit of a suspicious look.

In light of current events, I would like to present my online-exclusive patch design:

Gabriela dice: “¡Ya basta!”

The sunsets here on the mountain are incredible. Arizona can do some great stuff with monsoon clouds, but there’s this difficult-to-capture lilac band across the cloudless sky at sunset here that is beyond compare.

Some people only have eyes for one thing, though.

Also, I met a cool lizard but I didn’t catch their name. Anyone know them?

Aside from that, not much to report. Eden, Avalon, and Jialin arrive tomorrow, so we’ll have some more bloggers. (And, when the instrument shows up, hands. But who can say when that will be?)

Song of the Day

The connection to yesterday’s Delirium by The Dead South is… Saskatchewan!

Yep, more Canadians cosplaying my Southern roots. I like the song, though.

“Sleeping on the Blacktop” by Colter Wall

Now, if you want to hear some non-imaginary Appalachia, check out this short video Warren found explaining how to tell when you’ve got good alky-haul.

MagAO-X 2022B Day 0: Launched to LCO

Well, @warrenbfoster still owes us vacation photos from Valparaiso, but who knows what his internet situation is. Someone’s still gotta write the Day 0 blog post, though.

Hello again, LSC hardstand.

Compared to last time this trip didn’t have many surprises. We did learn several things, though:

  • When there’s a choice of LATAM and Delta for the 10-hour flight, Delta’s got the better seats. Jared reports leg-room upgrades on LATAM are barely anything, and not worth the additional cost. I had to sit on my complimentary blanket to sleep because the hard seats were tough on one’s rear after a few hours.
  • COVID-related arrival measures are entirely gone. No test on entry, no verification of vaccine documents. The Ministerio de Salud has dispensed with mask-wearing requirements indoors (except for healthcare settings) and most employees and passengers opted to go bare-faced.
  • Passport control took a while, but kept moving. Single line for nationals and foreigners.
  • Customs enforcement seems to be up. The scannable tags system that was new last time is now gone, replaced with brief interviews with Jared and myself about equipment we were carrying. We aren’t importing anything (of course) so we explained we had tools for scientific research and they let us go.
  • They no longer seem to care about the purpose or destination of visits. I have a slip saying I’m visiting Santiago for vacation that I must present on exiting the country, but I was never asked for those details.
  • As always, the “collect your bag, complete customs, re-check your bag” dance is a pain. Unhappily we must report that LATAM domestic baggage recheck is now even sillier. There is a counter in the international terminal, down the hall with the taxi stands right after customs but before you actually exit. It was super backed up and after waiting 10 minutes not one person had successfully re-checked their bag and left. If it’s not busy, it might be better than the situation across the road. We schlepped our bags across the way to the old terminal (T1) and went to a place with approximately 4 actual agents and all self-service kiosks. Of course, the self-service bag check does not work with our pre-tagged bags so you can go straight to the “I need an actual human” line.

Song of the Day

“Preparada” by El Columpio Asesino

Okay, so the song’s about a violent break-up but… we are preparada for 2022B.

Someone should probably come up with Song of the Day rules.

MagAO-X Voyage à Montréal Day 1: My French isn’t that good

The SPIE Astronomical Telescopes + Instrumentation conference is the main event for instrument builders world-wide, and this year is held in Montréal, Quebec, Canada. The conference is held every two years (because one year is nothing in instrument project timelines) and the last one would have been in 2020. (But then, the plague.)

Anyway, we have a lot of new stuff to report from MagAO-X, and from our friends in UASAL, SCExAO, and beyond. See the schedule at the end of this post. (We’re just jazzed to be here.)


Today, the first team member to speak was our fearless leader with a status update on MagAO-X Phase II and future plans.

Olivier Guyon gave us a version of his Spirit of Lyot talk, which was fortunate, because that gave some of us a second chance to absorb and understand it. (There’s a lot going on over at SCExAO!)

Sebastiaan was tapped to present as a substitute for a team member who wasn’t attending, and he gave us an overview of image quality calibration from WFS PSF deconvolution (work by Jacob Trzaska) and his own predictive control algorithm (Data-Driven Subspace Predictive Control—DDSPC).

Blog Rules

It’s been a while since we had a Blog Rule, beyond the compulsory Song of the Day. So, here’s my rule for the week: les chansons doivent être en français.

(The songs must be in French.)

Bonus points for chansons Quebecois!

Song of the Day

“Je Veux” by Zaz

Today when I went to get a coffee en route to conference registration, I opened with a “bonjour,” following the advice for anglophones in a francophone world. Then, I asked “English OK?” and the barista said “Yeah, sure! My French isn’t that good.”

Maybe that advice is more for the rest of Quebec…

MagAO-X and Friends Schedule

TimeAuthorRoomTitle
Sunday, July 17
12:05Jared Males518aMagAO-X: current status and plans for Phase II
15:45Olivier Guyon (SCExAO)518aHigh Contrast Imaging at the Photon Noise Limit with WFS-based PSF Calibration
16:20Sebastiaan Haffert518aPSF evaluation using tip images in a modulated pyramid wavefront sensor
Monday, July 18
posterJaren Ashcraft (UASAL)516The Space Coronagraph Optical Bench (SCoOB): 1. Design and assembly of a vacuum-compatible coronagraph testbed for spaceborne high-contrast imaging technology
posterKyle Van Gorkom (UASAL)516The space coronagraph optical bench (SCoOB): 2. wavefront sensing and control in a vacuum-compatible coronagraph testbed for spaceborne high-contrast imaging technology
posterKevin Derby (UASAL)516Tolerance analysis of a self-coherent camera for wavefront sensing and dark hole maintenance
Tuesday, July 19
13:25Laird Close (for Alex Hedglen)518aFirst lab results of segment/petal phasing with a pyramid wavefront sensor and a novel holographic dispersed fringe sensor (HDFS) from the Giant Magellan Telescope high contrast adaptive optics phasing testbed
13:55Antonin Bouchez (for Rick Demers) (GMT)518Phasing the Segmented Giant Magellan Telescope: Progress in Testbeds and Prototypes
17:25Meghan O’Brien518aexperimenting with the g-ODWFS for use in extended source LGS wavefront sensing.
posterSebastiaan Haffert516Visible extreme adaptive optics for GMagAO-X with the triple-stage AO architecture (TSAO).
posterLaird Close516A Review of High Contrast AO Imaging of Accreting Proto-Planets
posterJoseph Long516XPipeline: Starlight Subtraction at Scale for MagAO-X
posterNoah Swimmer (UCSB)516?An MKID camera for use behind MagAO-X
Wednesday, July 20
posterJared Males516The conceptual design of GMagAO-X: visible wavelength high contrast imaging with GMT
posterMaggie Kautz516A novel hexpyramid pupil slicer for an ExAO Parallel DM for the Giant Magellan Telescope
Thursday, July 21
10:30Laird Close518aThe Optical and Mechanical Design for the 21,000 Actuator ExAO System for the Giant Magellan Telescope: GMagAO-X
14:10Lauren Schatz518aExperimental demonstration of a three-sided pyramid wavefront sensor on the CACTI testbed
15:40Andrew Szentgyorgyi519aG@M: Design of the Giant Magellan Telescope Consortium Large Earth Finder (G-CLEF) for operations at the Magellan telescopes.
posterSebastiaan Haffert516Advanced wavefront sensing and control demonstration with MagAO-X