Night 5 started out with Manny and Dan cooking a delicious pancake/egg/sausage/bacon breakfast for the whole crew! Dan came up just to help Manny out, and a great time was had by all.
Post-breakfast, pre-sunset game of pool.
At sunset we were closed due to high winds, then the thick clouds rolled in. It looked like the wind was dropping, but actually the anemometer must have frozen because the winds were still very high in real life!
This picture is supposed to illustrate high winds and building-up clouds at sunset on Night 5. It’s hard to depict wind in a still jpeg though. But those pine tree branches were really blowing!
Around the halfway point of the night it started to graupel, and there were thunderstorms 30-50 miles away. So we never opened, and we put the telescope and instruments into lightning shutdown mode. The MAPS and MIRAC teams waited out the weather until around 3am when we and our TO agreed that the weather seemed to be behaving according to the forecast, and the forecast was calling for more snow and wind the next day and night. Therefore, towards the end of night 5 we decided to call off night 6, and the MAPS/MIRAC teams fled the summit and the snow for the balmy Tucson rain.
Some of us left around dawn, others slept a bit longer, but here was my dawn between Nights 5-6:
The song of the nights is the sound of wind-driven graupel striking the side of the metal dome.
The day-to-day operation of an experimental extreme adaptive optics instrument, pushing all the boundaries at once, can feel like lurching from crisis to crisis. We need to get better airflow in the bowels of our electronics rack. We need to automate the fifty-three step alignment process. We need to debug this segmentation fault in our control software. We desperately need to do laundry, but we’re unwilling to sacrifice sleep or work time.
Today, a portentous wind blew all through dinner. Jialin and Laird got on right at sunset, and it looked for a minute like we’d have an okay night. Windy.com predicted calm conditions. In fact, it’s continuing to predict calm conditions.
However:
Yes, the wind line is going into the humidity plot.
We have to close the telescope for average wind speeds of 35 mph, and it’s gusting to 52 mph. Jialin is no longer allowed outside without a tether in case she blows away.
Some days you feel mega and some days not so mega.Say it ain’t so!
We tried to open the door to the outdoors but nature said “no. ❤️”
The conditions at Las Campanas will blow you away.
At times like these, the hard-working AOistas thank Mother Nature for delivering exceptionally bad conditions so that we can focus on what’s important: software development, esprit de corps, and blog #content.
We did take some data before we got shut down, though. And, who knows, maybe this will all just blow over. Meanwhile, Jared was not satisfied with the amount of wind and went to get some extra fans for our instrument. Armed with a couple of graduate students, he went to hunt in the storage building between telescopes.
Inside a box cryptically labeled VisAO (possibly some viscacha-themed instrument?) were some fans for cannibalization. This will hopefully help us even out temperatures in the electronics rack.
“Hello old friend”— Jared
2024-04-24 00:00 CLST
Sparkles “Eden” McEwen turned 25 today! We only use UTC for consistency in our instrument, but birthdays are celebrated in local time.
We’re happy you were born!
2024-04-24 01:27 CLST
Wind’s dying down! Finally!
Jared took some data down at the lodge while he was checking on his laundry. Seems like he got a bit of sky rotation.
If you visit the southern hemisphere you can see the Magellanic Telescopes, discovered by astronomers in 2001.
Tomorrow’s a half-night for me, so I’m taking advantage of my last full night to file my second and final blog post for 2024Aa. Until next time, enjoy some hair-metal revival from STARBENDERS.
Song of the Day
We can face the darkness, baby. It’s all in the way you play the game.
“The Game” by STARBENDERS
#content
I know we’re not the first ones to use AI image generation, but its ability to capture South American animals has greatly improved since I last tried it out.
O B E Y (prompted by Sebastiaan)The tail-less giant mountain viscacha has not been seen since the last ice age.The ELBT (Extremely Large Banana Telescope) (prompted by Jay)
Despite the partly cloudy night, we fixed several issues and made a lot of progress!
MIRAC pupil alignment — an errant detent was corrected and the ellipsoidal mirror internal to MIRAC solved the mystery of co-aligning telescope, AO, + MIRAC pupils!
AO camera lens loop — finally got it calibrated, and working beautifully on-sky!
Pupils tracking and 20 modes loop!
AO calibrations — got a successful 20 modes loop, and discovered that a better SNR is needed for higher-order loops. SNR can be increased by raising the amplitude/stroke (but need to test where the linear range ends), and/or by increasing the number of iterations (we went from 500 to 2000). We also received wisdom on inverting the calibrations and making our own masks.
Pinwheel mode being calibrated!
However, the partially-cloudy conditions made it impossible to actually take a long-enough running calibration to raise the SNR enough to go to 100 modes. So that awaits another night.
Clay and the moon, aka the massless particle in a RTBP, at sunset.
It’s the first double digit day of the 2024Aa run! As the master scheduler, tonight’s time is finely chopped up into four different blocks. Let’s hear what the MagAO-X scientists are doing for the night, and maybe ask them some fun questions. Ok, maybe they are just questions randomly popped into the minds of the deliriously tired interviewer and scientists.
Before we go to the main event, here are some animal spotting! Can you spot the 4 different viscachas and the guanaco?
iEFC on Sky Commission with Josh Liberman
What is iEFC and why is it so important?
Josh: iEFC is implicit electric field conjugation, a technique for removing quasi-static speckle and it allows us to reach higher contrast.
How did commissioning go?
Josh: We drove up at 3pm and performed calibrations. Everything went well, and we opted to skip dinner to finish calibration before sunset. The telescope dome opened after sunset viewing. When we returned to the control room, MagAO-X was in a state of extreme distress: the DM got really angry and the system was misaligned. Everything that could go wrong went wrong.
What were the immediate thoughts that went through your head when the system misaligned after dome opening?
Sebastiaan: God Damn it!
Josh recreating the recreaction of SebastiaanSebastiaan recreation of himself
If you can befriend a fictional character who would it be?
Josh: Flat Stanley, he just gives off good vibes you know?
What is an insignificant petty gripe that makes you extremely angry?
Josh: When someone replies all to a group email.
YSES Survey Follow Up Observations with Sebatiaan Haffert
What is the YSES Survey and what observations are you doing?
Sebastiaan: YSES stands for the young suns exoplanet survey. I am doing a follow up of systems with confirmed companion. So far, 2/3 of my targets are successful.
Look at this binary!
How is it like being both an engineer and an observer?
Sebastiaan: I am not an engineer.
Logan: But you built an instrument!
On a scale of 1 to 10, where 10 is the most tired, please rate how tired you are after working from 3pm to 6am?
Sebastiaan: A three, it kind of feels like dinner time.
Flying or invisibility?
Sebastiaan: How important is invisibility if you have to be naked?
If you were to be a traffic sign, what would it be?
Sebastiaan: The “Watch Out” sign with the deer on it.
If you could make an office rule that everyone had to follow for a day, what would it be?
Sebastiaan: Everyone should walk backwards
What is an insignificant petty gripe that makes you extremely angry?
Sebastiaan: When the toilet paper roll is put in backwards!
Pup Search Observations with Logan Pearce
What is the backstory of the name of the survey?
Logan: the first White Dwarf-Main Sequence binary ever “made” was Sirius A and B. Sirius A, the main sequence star was known as the dog star. So Sirius B, the smaller companion was nicked name the pup. Now I am looking for more pups!
Logan and her new discovered pup!
Pup Search and Xoomies (Logan’s project on fetching companions to accelerating stars in Scorpius Centaurus Star Forming Region with MagAO-X) are all related to dogs, will your next project named similarly?
Logan: Man, it takes so much time to come up with names. We (Sebastiaan and I) spent all of the astrobiology conference coming up with the Xoomies names.
Sebastiaan: Mine will be about a stroop waffle. I don’t know what it will be about, but I already have the logo made.
Flying or invisibility?
Logan: Hands down flying! I don’t get those who chooses invisibility…
If you were to be a traffic sign, what would it be?
Logan: Parking signs with a bunch of confusing texts.
What is an insignificant petty gripe that makes you extremely angry?
Logan: Double doors with one side locked. WHY DON’T THEY UNLOCK BOTH DOORS?????
Debris Disk Imaging with Jaylycia Kuenberger
What kind of objects are you observing tonight and what are you trying to get out of your observations?
Jaylycia: I am observing circumstellar disks, which are rings of dusty materials encircling its host star. I look at disks at all stages of extrasolar system formation. But this particular target tonight is a debris disk and I am just trying to get an image of the disk to characterize it.
Disks are generally thought to be difficult, what are your thought about that?
Jaylycia: Yes, they are more difficult than point sources, but they look cooler! They are very faint and they are easily removed during image processing, by accident.
How does it feel to be an AO operator and an observer at the same time?
Jaylycia: I don’t.
Who came up with your new name?
Jaylycia: Maggie-OX did. It’s the best thing that’s happened to me.
If you were to be a traffic sign, what would it be?
Jaylycia: NO PARKING! I DoN’T KnOw!
As a former pastry chef, which dessert do you think best describes you?
Jaylycia: A hefty cream puff with vanilla custard filling.
Song of the Day
Hmmm… What would be a more fitting music than the BBC News Intro music for an interview?
Well, thanks for tuning into the special program of today!
So we were joined by our CACAO friends in Chile and Hawaii to take AO calibrations:
But we learned the camera lens loop was still a hold up so we spent a good long while trying to get it working as well:
The song of the night is the sound of a mouse being trapped (in a live trap) in the kitchen. The sample track is the sound of Rory when he discovered said mouse in the sink (yesterday).
