Home of MagAO and MagAO-X.
Sigh. And also, our X stage started doing that thing again tonight. Laird, we may have to have one of our wonderful cable routing bonding sessions. You know, the kind where I hold the flashlight for 5 hours while you talk to yourself with your head inside the instrument. I can’t wait.
Since we had clouds, I bailed on the control room and went down to the astronomer’s lounge. Much comfy.
Here’s another Clint Black song. It also describes TJ’s last couple of nights.
We had a solid run of 2 nights with good weather and incredible seeing. Sadly, that run is over. Tonight the clouds came rolling in around midnight and didn’t let up. Before they came in, the wind picked up and forced us to point at a very southern star.
While we were taking data, we noticed that the Clio PSF was elongated on one side of the chip but perfectly round on the other. To troubleshoot this issue, Katie and I decided to mess with Clio’s knobs (for instrument folks: move the camera lens around). We were trying to see if changing some alignment might fix the elongation. Here’s what we found:
These images were taken with the star at different positions on the detector and the camera lens adjusted to a new value. When we put the camera lens back to its nominal value, here’s what we found:
On the whole, the images are pretty similar. And more troubling, the overall PSF shape didn’t really change, which means the camera lens wasn’t responsible for the weird elongation. More problem solving to do later!
Since I am a LEGEND (A. Vaz, Nov. 29, 2015), I am going to forego the song requirement and bring back quotes. Here’s a little convo we had when the wind started to pick up:
“T.J. will point the telescope straight into the wind if you don’t watch him.” –Jared
“It’s true, I will.”–me
Goodnight/morning everyone.
After that horrible beginning, we’ve now had a solid run of clear calm skies. Almost relaxing. This is Day 14, and it’s also blog post #360. Did we come back around yet?
Last night we had some fun with a surprise binary. This is at H-alpha:
One of the clean room Vizcachas is still around. We just saw he/she for the first time a few days ago. Pretty skittish so far, maybe it’s a new tenant.
Toto blessed the rain, and Clint Black likes it now.
I’ve seen Clint live, great show.
Well, we hope you enjoyed yesterday’s blog post as much as we did! Amali’s clever and amusing artistry prompted us to develop the first-ever MagAO blog prize, and a new category of Award Winning Posts (at right). Here we present the 2015B MagAO Blog Award to Amali Vaz for her creation entitled A Post That Cannot Words:
Well, we did have a bit of excitement, with the ship trying to give out on us, but Jared is not one to give up the ship, so he got to work on his RAID-1 array and the AO supervisor computer was none the wiser:
And we opened at sunset and had a good night for TJ:
Mr. Psy Boone Bean worked out an issue with some J-band image elongation we had at the start of the night, which was related to aligning the camera, and not homing the camera lens:
And we had a great night of good seeing and beautiful PSFs. Amali is on the next transport out of here — thanks for keeping the loop happy and the blog amusing! Safe travels and see you in Tucson!
For some reason, Men At Work singing about Down Under reminds me of Toto singing of Africa:
Dear Gentle Readers:
My name is Amali and I come from the LBTI and while I am superlative in many ways, generating coherent sentences from real words is not one of them. However! Katie (after, perhaps, too many nights of my not-sentences) says I am allowed to just blog pictures and diagrams, so, here, CHECK OUT THESE SWEET FIGURES:
1. THE SCENE
a. Here is the LBT, with salient features labeled. It is large, binocular, and a telescope.
b. Here is Magellan! Also labeled. It is a Portuguese explorer dude from back in the day.
2. A COMPARISON
a. The LBT is, ahem, not known for good seeing. Here, for instance, is a DIMM plot from an LBTI run that I stole from our blog. The DIMM bottoms out at 0.5″, and maxes at 3″, and on this particular night we went off the charts IN BOTH DIRECTIONS so take that you snootyfaces.
b. Here is tonight’s Mag seeing, from Baade. 0.45, it says. I cannot even count below 0.5. I am sure that 0.45 is a very nice number, but, alas, it is not one I can comprehend.
3. A HYPOTHESIS
a. LBT is home to malicious flying dragon squirrels. They delight in whatsit, um, fancy word? Schadenfreude! Yes. And they accomplish this by breathing fire to mess up the seeing.
b. Frankenrabbit has better things to do.
4. CONSEQUENCES BOTH EXPECTED AND NOT
a. We get this at LBT too: in good seeing the pupils get all sloshy. NO it is not TT overdriving! If anything, it’s underdriving…that stays underdriven until it’s overdriven. But that’s terrible! Good seeing should be a time of joy, not a time of tip-tilt messes and people going FIX UR GAINS KID!
b. They start the entire AO lock with THREE BUTTONS which means you ONLY CLICK THREE TIMES and I get twitchy because things so simple can’t possibly be doing what I want, right? CLICK. MUST CLICK. CLICK CLICK. It is hard when things work! If I’d only clicked more gain buttons you wouldn’t have to look at all these diagrams!
5. A LEGEND IN THE FLESH
TJ is here. I met TJ. I had not met TJ before, because he left just as I arrived, BUT he is the legendary scapegoat/mascot/dearly departed of LBTI, and I have spent many a night telling (completely made up) TJ stories. Like, remember the time TJ chased a goat into a bear’s nest and then fell off the mountain? That was epic. Anyway, my mental picture of TJ was kinda…part Daniel Boone, part Mr. Bean, and part Gangnam Style Guy.
Now that I’ve met him… I had him down pretty well, actually.
6. INCIDENTALLY, SCIENCE
Possibly this section is best left to the science types, but WHATEVER, I had to fill up some time without clicking things, so here.
a. VISAO! We looked at Sirius and the seeing was incomprehensibly good and Jared had this mesmerizing display of a visao psf. I can’t do it justice in drawings but here:
b. Back when I was a spring chicken or something, my favorite thing was the APP, even though I’d never actually seen one in action. UNTIL TONIGHT because BOOM Katie got this on Clio:
I <3 U APP
7. THE SONG
You guys, I HATE winter, what are you even doing, this is the summer world! Southern hemisphere, friends. WARM. DESERT. Like in this song. Also, the dance in the middle is LIEK TOTALLY TJ. …right?