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Meanwhile, some debris pieces at Orbital are mysteriously moving around on their own. Finola and Bryan are called back to find out what is happening with the debris. When they go in to investigate, they find several technicians in a trance, lined up in a hallway, and another technician moving, zombie-like, grabbing boxes and lining them up in ...
Orbital mechanics is a core discipline within space-mission design and control. Celestial mechanics treats more broadly the orbital dynamics of systems under the influence of gravity, including both spacecraft and natural astronomical bodies such as star systems, planets, moons, and comets.
The program associated observations with known orbits. The output of the program, plus data from the Checker Program, was sent to the duty space surveillance officer and technician for review with some assistance from the duty orbital analyst as needed. Other special duty orbital analyst activity occurred when a satellite neared decay.
The principles of flight dynamics are used to model a vehicle's powered flight during launch from the Earth; a spacecraft's orbital flight; maneuvers to change orbit; translunar and interplanetary flight; launch from and landing on a celestial body, with or without an atmosphere; entry through the atmosphere of the Earth or other celestial body ...
Epicyclic gearing was used in the Antikythera Mechanism, circa 80 BC, to adjust the displayed position of the Moon for the ellipticity of its orbit, and even for its orbital apsidal precession. Two facing gears were rotated around slightly different centers; one drove the other, not with meshed teeth but with a pin inserted into a slot on the ...
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O'Neill's ashes were carried on the upper stage of an Orbital Sciences Pegasus. O'Neill was diagnosed with leukemia in 1985. [66] He died on April 27, 1992, from complications of the disease at the Sequoia Hospital in Redwood City, California. [7] [8] He was survived by his wife Tasha, his ex-wife Sylvia, and his four children.
An orbital replacement unit or orbital replaceable unit is a modular component of spacecraft that can be replaced upon failure either by robot or by extravehicular activity. The Hubble Space Telescope (HST) was designed with 70 such parts, [ 1 ] including scientific instruments and limited-life items such as batteries.