Yesterday work proceeded as usual, except Laura was around too! I must be getting tired of taking bajillions of photographs every day, as I don’t have very many. The primary operation pictured is laser alignment of the primary and secondary mirrors. The highpoint of the day was fresh delicious cookies that the kitchen staff put out before they left.
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- Laura finishes her Crary Lab orientation, and arrives
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- Scrap aluminized mylar from Juan’s arts and crafts
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- Elio solders extension cables for the secondary mirror thermometers
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- Laura and Nick open up the motor control boxes for some touching up
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- Lead bricks for balance, and the shiny mirror blanket
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- Laura continues to work on the motor controller boxes
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- Pre-cut rolls of aluminized mylar, for eventual use on the scoop
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- Elio and the laser temporarily mounted to the secondary for alignment tests
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- Marks attaches the fairings to the telescope struts
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- Detector-eye view of the system (though a wider field, the detectors don’t see the rear of the primary, of course)
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- Aligning the laser dot
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- Checking how alignment changes with telescope elevation
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- Laser dot on the primary, cables routed along the outside of a strut
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- The secondary mirror, strut, and alignment dot
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- The laser arrives (almost) where it started. Things are aligned
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- The fabled LDB galley, where lunchtime miracles happen
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- Galley insides, with festive autumn/Thanksgiving decoration
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- Cups and Tea, among the things available at all hours
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- Fresh still-melty cookies! OMNOMNOM
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- Strange leaning snow
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