With Theo on the gondola, it’s time to start scanning. That is, after all, what we’re supposed to be able to do. As a telescope. The first thing to scan is a calibration source, mapping out Spider’s beams (how each detector sees a point source).

Sun shields in the highbay
Getting antenna cables routed

Natalie routes her GPS cables

Sean and Johanna on the cherry picker
Which is out tool of choice for accessing Theo on the gondola

Backing in
Carefully

Setting up the beam map source
Holding it up really high is the cherry picker's other purpose

Fully extended

Spider seeing light
With two telescopes open

Beam mapping

The source
A black board for the star camera to look at, and the thermal source on the right

Scanning with all five telescopes

Sun sensor, with aritificial sun
Just to make the highby a little hotter, on a hot day with the big door open

Watching science happen
Detector timestreams as they observe the source. Good watching

Lorenzo repaired the espresso machine (since rebroken...)
Because beam mapping involves a lot of waiting

Mapping at night
You can see the orange glow of the thermal source
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