Questions tagged [rotation]
Questions regarding an object or spacecraft rotating around an axis.
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Rates of change of Euler angles to angular velocity of a rotating coordinate system
I am trying to implement the conversion between TEME and GCRF frames following the same procedure as done in SPICE. After digging into CSPICE's code, this transformation is performed through the ...
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Where to get data for axis of rotation of solar system bodies?
Where can I get data for the axis of rotation of the (major) bodies of the solar system?
For each solar system body, I want to get a unit vector of its axis of rotation (at a specified point in time).
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Rotation and orientation of James Webb's mirror from ground stations
There are definitely pre-determined plans in the agenda of the James Webb telescope to take images from the universe, but if there is a need for any reason (intentional or emergency) to change the ...
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New to GMAT. Where do I start to build an orrery?
The goal would be an animated, variable-speed, 2-D view from celestial north of the Sun and planets. A stretch goal would be showing photorealistic rotations of CelestialBodys as a function of time.
I ...
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Transformation of Covariance Matrix from EME2000 to LLA
I am a little bit confused regarding the transformation of a covariance between EME2000 and the LLA-representation of a state (lat,lon,alt). Let's say I have a timeseries of spacecraft states, ...
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Would the Dzhanibekov effect be a problem for Von Braun Wheels?
If we look at Von Braun's Space Station, we can see that the axis is not completely symetrical. It is longer from one side:
Von Braun Space Station 1956 - YouTube
that looks a lot like this T-shaped ...
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Did the Coriolis effect cause 'original spin'? [closed]
I just recently wondered if Coriolis effect (I'm strongly resistant to saying "Coriolis FORCE") is the origin of the spins that permeate our cosmos. For a rotating frame of reference needed ...
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How does Spinlaunch manage the counterweight right after launch?
Spinlaunch has successfully launched a suborbital test vehicle from a 1/3 scale demonstrator, see for instance aviationweek.com or space.com.
While spinning up the arm, perfect balance is achieved ...
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How much energy is lost by damping yaw from a SpinLaunch?
SpinLaunch hopes to launch a 200 kg satellite from a ground-based centrifuge, at 5000 mph, and more troublingly, at 450 rpm aka 7 tumbles per second.
(The 3000 rpm figure mentioned in its tech sheets ...
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What is the highest RPM achieved through a spin-stabilized rocket/spacecraft?
The title explains it all. I know that the Star 48 kick motor rotated at 60 rpm through its burn. I'd like to know the fastest a rocket/stage has spun during a launch, as well as the highest ...
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How do the roll-rings at the ISS work?
I get that on the ISS they need to keep the solar panels constantly rotating to keep them looking towards the sun.
To transmit the electricity and data to and from the Solar panels truss structure ...
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Eliptical orbit [closed]
If an object revolves around the earth in a perfectly circular path, where the center of the circular path is different from that of the earth, (which means the object is close to earth's surface at ...
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How do orbits around Jacobi ellipsoids behave?
The Earth is a Maclaurin spheroid (aka. oblate). This affects orbits, most notably $J_2$ rotating the node line for inclined orbits, enabling thins like Sun-synchronous orbits.
But the Maclourin ...
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Can an orbit rotate around a non-orthogonal axis?
I'll attempt to draw a mental example, in case images are not kind (if they are kind, you can likely skip this first paragraph). Let us say that the Earth is at it's aphelion (arbitrary choice), and ...
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What is the fastest that ParkinsonSat spun? Did it vary with solar activity?
Why would photon pressure be needed to keep ParkinsonSAT Spinning? explains that it was equipped with surfaces that resulted in a sunlight-induced torque which have
...succeeded in keeping the ...
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