Tag: 2023A

Astronomers are a fairly adaptable or masochistic lot. Regular switches between day and night are sought after, locations without much oxygen are prized, and network systems are designed around blocking communication with our own instruments. Observing runs are an oscillating balance between excitement and dejection, determination and delirium, and sleep and awakeness. In this world of contrasts, resilience is honed and prized. There are some times where the hardened star dust of astronomical grit wears thin, however, and this usually comes on the second night of the run. Our circadian rhythms have not yet been forced into submission yet, and the long day followed by a bewildered sleep tends to run its course by 3am. The adrenaline rush of the first milestones have passed, and we aren’t yet settled into the comfortable routine of known problems and sandwich forms.

We will pass through the fire of the transition, and are looking forward to more coherent days to come. In the meantime, I am running out of writing steam and will follow the guidelines that Eden suggested when arguing why I should write the blog tonight.

“I think that you would do such a better job. Topics Warren can put in a blog:
“Him doing PIAA stuff”

“Him staring hard at PIAA stuff

“Him doing random walks and taking astrophotography”

“How he is leaving in two days and will miss Las Campanas“

“How Eden will be here for 14 more days and will have to write so many more blog posts than Eden“

“How much Warren cares about Eden and her mental health and how she has to stay up until sunrise”

As a group we made it through the night, and look forward to many more nights making progress and working together. See you all tomorrow.

Edit: Song of the Day

The carpool left promptly at 7am and, bleary from late night picture captions, I forgot everything about finishing blog posts with a song of the day. Tonight is filled with the nostalgia of being my last night at LCO. My fondest memories are filled with late night delirium and accomplished resolve. Laughter against the ever-present backdrop of the night keeps evoking the line:

The sunshine bores the daylights out of me
Chasing shadows, moonlight mystery

The memorable association of this song is from walking down the mountain amid the sunrise, squinting against the growing light and looking forward to the dark nights to come.

Edit²: the lost blog post

Eden and Jay convinced me last night to finally post the blog entry that I had started for the AO summer school. It is retrodated here:

AO Summer School Day 1: Closing the loop on California mysteries

Yesterday I arrived with Eden and one way to gauge how chaotic the journey to LCO was is the level of shin splints experienced the next day. That is to say, the trek was not without some hiccups. From semi-justified TSA traffic stops…

…to major flight delays. If anyone reading this has the clearance to retrieve security footage of ATL’s B Terminal you’d find two grad students running faster than a supercharged V8 and scattering many meandering airport families while doing so.

The language barrier was a bit higher than anticipated which caused a few more delays at SCL but nonetheless we made it! After a long rest we prepared to do the big move and install next.

The gory details might be left to future post but the first task of the day was to push MagAO-X onto the transport vehicle and drive it (slowly) up the hill from the clean room to the telescope platform.

Once it was at the telescope we made ample use of the many convenient tools integrated into the building to make our lives a lot easier.

The scariest part (for me) is always the crane operations, but everything went by without a hitch. After the table legs were placed under the floating MagAO-X it had to be lowered just right to ensure everything buttons up together nicely in the end.

One of the last steps before first light was the cabling procedures. Here we see our DM-cabling gurus hard at work.

The rest of the night didn’t offer many more photo opportunities and was honestly a bit of a blur (perhaps due to being awake for nearly 24 hours) but MagAO-X is being fed real stellar photons and it’s working great!

Well this “first light” post could have undoubtedly gone a bit deeper into the operations and science, except we’ve all been up since 7:30a and it’s well past 4:00a now with a few more hours to get through before we can call it quits. So we’re all very tired (except Warren apparently), so it’s time to sign off….

Song of the Day

As per the 2023A blog rules a song must be chosen for each day of the run. One stipulation is that you must recount who recommended the song to you. So today it’s “Tell Her About It” by Billy Joel. One realization that dawned on me today is that the compressor on the cool new kid on the block, XKID, pumps along to the tempo of this very song (or it’s dang close). So I guess you could say MagAO-X’s new friend XKID recommended this song to me. That counts, right?

Day 8 saw the arrival of two colleagues and one hefty tarantula.

Despite having to negotiate the Atlanta airport with speed, they made their connection to Santiago, where they obtained their Mountain Names: Iden and Jackke.

Nobody captured the exact moment they alighted from their servicio especial van, and they’re extremely asleep right now, so you’ll have to trust us: they’re here.

Today we crammed in quite a lot of science and engineering before shutting the instrument down for the night before its Friday morning trip up to the telescope platform. We also wrap it up to prevent heating and intrusion by dust.

Anyway, all that means: tomorrow we’re doing the thing! This means we wake up for breakfast, make approximately 100 trips back and forth between the summit and the almost-summit where the cleanroom is, plug a lot of things into other things, and then do astronomy until it’s time for breakfast again.

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As the only graduate student present who has been on a MagAO Classic run, it fell to me to implement the speech-synthesis ops concept that Jared has long coveted for MagAO-X. (Only so many people can crowd around MegaDesk, but everyone in the control room can hear “loop is closed.”)

Speech synthesis has changed a lot since Jared was a grad student, and professional-grade deep-learning models are surprisingly good these days. Of course, the budget for this was $0.00, so I used OpenTTS. OpenTTS lets you sample a wide variety of synthesis packages with a common API, and I had the container running on AOC (that’s our Adaptive optics Operator Computer) in a few minutes.

The next challenge was to hold auditions. For my auditions I imagined some things MagAO-X might want to say, and gave them to the various models: “Target changed. High-order loop closed. Data saving started. Loop is open. Smoke ’em if you got ’em.”

The previous-generation models were there for comparison, and sounded like absolute butt:

On the plus side, espeak was one of the only included engines with a non-US/non-UK English voice:

Island vibes aside, the synthesis was just not that good. I kept looking. This MaryTTS voice seemed all right:

Just one small problem: Maggieo-X is clearly not male. This voice clearly is. That simply won’t do. How about this from Larynx?

Not bad. But are we sure Maggieo speaks English?

I also ran the Dutch voices past Sebastiaan Haffert, local Dutchman:

Verdict?
“They’re all… very Flemish.”
“Is that bad?”
“No, they’re just very… soft.”

It’s true. The characteristic throaty “g” of the true Dutchman was let down by these synthetic voices. Just click the speaker icon on here to have Google’s model read the same to you. See?

Anyway, auditions continue, but I have a pretty good idea of who will be narrating our ops tomorrow night. Until then,

Song of the Day

Okay, maybe when I posted Bring Me To Life and then Jared had Korn it started a bit of a nu metal trend, but in the end it doesn’t really matter.

I don’t play many video games, mainly because I am usually in the business of telling computers what to do, and therefore really resent them telling me what to do. One recent exception was Sayonara Wild Hearts, which is incredible. More of an album-length interactive music video than a “game,” I guess, but anything that includes:

• firing heart-shaped projectiles
• from your motorcycle
• at a three-headed robot dog
• as a metaphor for overcoming heartbreak
• (narrated by Queen Latifah)

has to be good. And, of course, the music complements the v i b e s perfectly. (And is strongly inspired by CHVRCHES, no doubt.)

For some reason, nobody’s taken the unadulterated audio and overlaid it on gameplay for a ready-made music video, but if you can ignore the dings and bleeps this should give you some of the flavor.

Bonus Tarantula

Content warning: incredible arachnid. Click to tarantulate.

This little guy took up residence on Avalon’s door this evening, requiring XKID xpert Noah Swimmer to remove him.

Warren and I took different paths to Santiago but were able to meet up at the infamous Starbucks in the domestic terminal.

We continued our journey onwards took the plane to La Serena and then the bus to the observatory. It took me only 78 days this time to come back to LCO and it feels like I never left. Like a certain PI said: “home is where the wifi connects”. This rings very true for LCO.

Our days immediately started with work due to tight schedule because of the many projects that we are doing at MagAO-X. Warren dived into the clean room to assemble his new monstrosity to mount the PIAA lenses. And, I started aligning a laser into a single-mode fiber. This was necessary to take some calibrations to improve the reduction of data from our last run. Its quite tricky to get enough light out of a single mode fiber when not all axis of your mount work. After spending about 2.5 hours I finally got enough light through and I was able to finish my calibrations. I finished at 2 AM! However, the night sky at that time is always amazing.

During daytime we were able to make big strides on the integration of the camera software of VIS-X IFU and MagAO-X. This will hopefully mean I won’t have to leave my laptop beneath the instrument again during the observations.

I choose a song from Bon Jovi which is one of the few artists I have actually seen IRL. This was part of the Royal Dutch Beach concerts almost 10 year ago.

I’m a C++ programmer, which means I’ve been here for a week. Consequences include I’m doing laundry already, and I have no idea what day of the week it is (that might be a memory leak joke).

Sebastiaan and Warren arrived today, and immediately started tearing the instrument apart (as expected).

The XKID crew warmed it up today to inspect some things on the inside, which gave us an opportunity to go visit and see the guts up close.

We’ve been seeing these Neotropical Stick Grasshoppers a bunch. This one was flexing for me after lunch:

The machine shop sink outside the cleanroom has been decorated:

I think one of our cleanroom friends overdid the sun bathing today, and was a little out of it at sunset.

As in all things in life, there are ways to separate the people who have really made it. The signs are there if you look:

So you could title my series of songs “concerts I went to with my best friend Ben.” Here we switch from country to hard rock and metal, and this will be the first in a sub-series about a specific show. We went to a concert in Omaha to see a band (coming up, no spoilers here), for which there were two openers. The first opener was a total surprise, that no one there had ever heard of (we didn’t even know there was going to be a first opener). I’m not trying to be that guy, you know, cool before it was cool.

They come out, and I’m grumpy “who the F is this?” And then Ben looks at me and says “are they . . . do they have … bagpipes?”. And then it was on, into the mosh pit we went. The band was KoRn (I can’t do the R right here). Awesome show. Ben still has a dollar bill signed by Jonathan Davis in the CD case he bought that night. KoRn got huge shortly after and we get to say we saw them when.

So here’s my favorite KoRn song:

Update: I am a big enough deal that I travel with my own personal tech support. Thanks to Joseph I can now write KoЯN.