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CAPE CANAVERAL, Fla. – Technicians in the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center are ready to move the Fine Guidance Sensor, or FGS, for integration onto the Orbital Replacement Unit Carrier, or ORUC. An FGS consists of a large structure housing a collection of mirrors, lenses, servos, prisms, beam splitters and photomultiplier tubes. There are three fine guidance sensors on Hubble located at 90-degree intervals around the circumference of the telescope. Along with the gyroscopes, the optical sensors are a key component of Hubble’s highly complex but extraordinarily effective “pointing control system.” Atlantis is targeted to launch Oct. 8. Photo credit: NASA/Jac — NASA KSC · 2008. ABD devlet eseri: kamu mali, ticari islerde de serbestce kullanilabilir.
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