It’s not thaaaaat cold, just above 0C [32F]. But you have to remember we left months straight of 38C+ [> 100 F] in Tucson. Our blood is thin, you know?
MagAO is ready to bolt on the telescope tomorrow. We spent today unpacking the ASM, moving it up to the summit, cooling Clio, and doing startup checks and cleaning on the NAS. With no new things to install and test, and nothing broken* after the last run, it was an easy day.
There was a big snow storm a few weeks ago. Here are the remnants by the Clay.
Katie spent the day making it snow inside Clio, but this was already there.
I think Vizzy doesn’t remember me.
Vizzy scrambles across the clean room awning.
The real problem is the wind. James Herriot called it a lazy wind — it can’t be bothered to go around you, it just goes through.
As Alex described yesterday, we had to make a major mid-run repair to our system. One of the most important components of our Pyramid wavefront sensor failed on Alycia’s 2nd to last night. So we had to light the bat signal, and, as usual, our Italian collaborators and the LCO crew answered the call. First, Runa connected early on his Sunday morning to discuss piezoelectric actuator failure modes, and then Roberto, Mario, and Alfio stayed up late into Sunday evening in Italy to help us troubleshoot and confirm that our tip-tilt mirror (TTM) was broken. Then, the LCO crew helped us crane off Clio and the NAS first thing Monday morning. Meanwhile, we consulted with Enrico about how to do the change out without ruining our optical alignment, and once we had enough lasers bouncing off enough things, we swapped out the TTM with our spare as fast as we could, getting it done just in time for the crew to crane the NAS and Clio back onto the telescope just before dinner and in time for us to get it all re-connected in time for sunset. After a few software fixes under the guidance of Alfio, we closed the loop, Katie stepped on the gas and away we went.
Laird likes to say that our AO system is a fine Italian sports car (as compared to all those minivans out there), and Enrico compared our TTM change to a Formula One pit stop. So I thought I’d illustrate it. First, this picture identifies the roles various people played in our little drama:
This is the WFS pit. We have a slightly different crew for ASM problems.
And here it is, somewhat sped up from actual speed on the mountain:
Here’s a pic of some laser alignment spots.
The inside of the WFS, with laser spots to tell us we put the mirror in the right spot.
Thanks to everybody who helped us pull this off: our collaborators in Italy, our amazing LCO crew-mates, and our patient observers.
Quote of the run: “What!!!! How do these things work at all?!?!” — Laird Close, investigating capacitive sensor theory.
It does turn out that Viscachas are mostly useless at times like this, but they are always there to say hi on our way up to the summit.
The picture I was takingSuch rabbit. So tail. Wow.A vizzy, with shadow for scale.This moron was on the road when I went running before dinner. She watched me run right at her for about 100 yards, and then took off running down the road away from me.A fair representation of the PSF on a typical GAPPPPPlanets target.
The clouds stayed away tonight, and we settled in to our normal habits — it’s been over a year since we did that! As usual when left to ourselves, we spent 4+ hours on one target and let the Sun open the loop.
Our friends were out enjoying the warm summer weather today.
Vizcachas, like cats, subscribe to the theory that if they can’t see you, then you can’t see them.A vizzy on an ambient tile roofGardening with Vizcachas takes planning.Gary poses.
