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  2. KH-11 KENNEN - Wikipedia

    en.wikipedia.org/wiki/KH-11_KENNEN

    According to Lew Allen, the initial key design elements were specified by Edwin H. Land.They included i) solid state focal plane array, ii) integrated circuits for complex data processing, iii) large, fast optics with a 2.54 m (100 in) diameter f/2 primary mirror, iv) gigabit/s data link, v) long on-orbit operational lifetime for the imaging satellites, and vi) communication satellites to ...

  3. Apollo abort modes - Wikipedia

    en.wikipedia.org/wiki/Apollo_abort_modes

    Apollo Launch Escape System diagram. If the rocket failed in the last five minutes before launch, the CM and the launch escape system (LES, see figure) would separate from the remainder of the rocket below with the LES propelling itself and the CM beneath it upward and eastward to the sea using a small solid-fueled motor (the launch escape motor) at the top of the tower on the launch escape ...

  4. Salyut 7 - Wikipedia

    en.wikipedia.org/wiki/Salyut_7

    On 11 February 1985, contact with Salyut 7 was lost. The station began to drift, making unpredictable movements in orbit, and all systems shut down. At this time the station was uninhabited, after the departure of Leonid Kizim, Vladimir Solovyov and Oleg Atkov, and before the next crew arrived. It was once again decided to attempt to repair the ...

  5. Orbit modeling - Wikipedia

    en.wikipedia.org/wiki/Orbit_modeling

    Orbit modeling is the process of creating mathematical models to simulate motion of a massive body as it moves in orbit around another massive body due to gravity.Other forces such as gravitational attraction from tertiary bodies, air resistance, solar pressure, or thrust from a propulsion system are typically modeled as secondary effects.

  6. Clohessy–Wiltshire equations - Wikipedia

    en.wikipedia.org/wiki/Clohessy–Wiltshire_equations

    Suppose a target body is moving in a circular orbit and a chaser body is moving in an elliptical orbit. Let ,, be the relative position of the chaser relative to the target with radially outward from the target body, is along the orbit track of the target body, and is along the orbital angular momentum vector of the target body (i.e., ,, form a right-handed triad).

  7. Prime Rib vs. Standing Rib Roast: What’s the Difference? - AOL

    www.aol.com/prime-rib-vs-standing-rib-170000298.html

    Note that the term “prime” does not reference the USDA grading system, which dictates that prime beef must contain eight to 13% fat. Rather, the term is called “prime” because it comes ...

  8. Here’s the last day to send your gifts in time for the holidays

    www.aol.com/last-day-send-gifts-time-143042135.html

    US Postal Service employees work inside the Los Angeles Mail Processing & Distribution Center on December 3. The facility is currently processing 1 million packages per day.

  9. Low thrust relative orbital transfer - Wikipedia

    en.wikipedia.org/wiki/Low_thrust_relative...

    In orbital mechanics, low-thrust relative transfer is an orbital maneuver in which a chaser spacecraft covers a specific relative distance relative to the target spacecraft using continuous low-thrust system with specific impulse of the order of 4000-8000s. [1]