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The Roman Space Telescope’s primary
structure is ready for the wire harness

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that powers each system of instruments,
gyroscopes,

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data transfer and movement.

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But the harness is nearly 1,000 pounds

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and 45 miles of continuous wiring.

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This acts as the central nervous system
of the whole observatory

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and, like our nerves is threaded
through each major component,

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making its transfer a delicate operation.

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What we're doing today is we're taking

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the flight harness off of the mockup

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that was used to put it in that flight
configuration,

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and we're putting it on the harness
transfer tool,

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which will
then be used to pick up the flight harness

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and put it into the flight structure to
then be put and mounted

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on all the flight hardware
and then eventually flown into space.

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Each side

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of the primary structure houses
different systems,

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each with redundant parts
of wiring options.

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Yes. So this is the telescope electronics.

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And over here before this is before.

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It's still being completed.

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The system command data handling this is
the kind of the brains of the spacecraft.

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With the wiring in place and tested.

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The team will continue installing all
the components into the primary structure

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over the course of the next year.