A simple challenge for those who claim they like topics related to space exploration

[josephG]

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diagram A




diagram B


cgi ako klarohon from diagram A if luke increase speed yes mo shift cya to higher orbits which in return make lukes ship slower in respect to DS speed.

but for diagram B the shuttle approach ISS from left to right opposite sa earth rotation(counterclockwise) which again opposite sd sa diagram A. my question is mo shift to higher orbit ba ghapon ang shuttle if it increasis throttle?..

[rodsky]

here's more trivia for space shuttles and their operations.. in layman's terms..

How is the space shuttle configured and operated?
The space shuttle system consists of a main liquid fuel tank, two solid rocket boosters (SRBs), and the shuttle orbiter. When the shuttle is launched, the orbiter and SRBs are attached to the main fuel tank, and the tank fuels the orbiter’s three main engines. A few minutes after launch, the SRBs exhaust their fuel, detach from the main tank, and fall into the ocean; a parachute system slows their fall, and they are recovered for use in future launches. The main tank and orbiter stay together until low Earth orbit is achieved. When the main tank is empty, it is detached as well. It cannot be recovered and generally burns up in the atmosphere. The orbiter, with astronauts aboard, then goes on to complete the mission. This 184-foot (56-meter) long vessel contains engines, rocket boosters, living and work quarters for up to eight crew members, and a cargo bay large enough to hold a large school bus. It also has wings and is aerodynamically designed to be able to glide back to Earth from orbit, landing like an airplane on any runway long enough to accommodate a commercial jumbo jet.

Source: The Handy Astronomer Answer Book, by Charles Liu

What you have posted has no bearing with (and thus cannot assist in solving) the problem I posed. If you're trying to provide information for those who lack information about the Space Shuttle, then thank you.

To those who want to see a retrograde burn in action, and how retrograde burns allow the shuttle to raise/lower its orbit, or allow it to return to earth, using a high fidelity space shuttle simulator (Orbiter), allow me to demonstrate it myself:

YouTube - Simulated Shuttle Deorbit-to-Landing - 1 of 3

YouTube - Simulated Shuttle Deorbit-to-Landing - 2 of 3

YouTube - Simulated Shuttle Deorbit-to-Landing - 3 of 3

-RODION

[rodsky]

diagram A

diagram B

cgi ako klarohon from diagram A if luke increase speed yes mo shift cya to higher orbits which in return make lukes ship slower in respect to DS speed.

but for diagram B the shuttle approach ISS from left to right opposite sa earth rotation(counterclockwise) which again opposite sd sa diagram A. my question is mo shift to higher orbit ba ghapon ang shuttle if it increasis throttle?..

The direction (clockwise or counterclockwise) does not matter if BOTH Shuttle and ISS are headed in the SAME direction, as can be logically inferred to in the diagram.

Yes, the shuttle's orbit will "inflate" into an ellipse larger than the ISS' orbit, mao nga it will slow down, and thus it will DRIFT AWAY from the ISS, instead of getting closer to it.

-RODION

[rodsky]

You got me wrong.

So the shuttle can reach the ISS without adding additional trust.

Totally incorrect statement. Refer to the first image in my solution above...


As you can see from this diagram, two bodies (in this case, the ISS and the shuttle) sharing the same orbital altitude HAVE NO MEANS to reach each other unless one of them changes orbital radius, and this can only be achieved if you either do a retrograde or prograde burn.

-RODION

[ethzneuron]

and i quote:

mo-catch up ang shuttle towards IIS using reverse thrust meaning iyang thrusters kay pointing towards IIS. then after the burn kay "the spacecraft is actually moving faster!". so, mapaduol nani siya sa IIS.

what's the name of that big thruster sa likod sa shuttle? mao ning OMS...??

nice... next topic sir rods. lain na sad na thread. ^__^

[rodsky]

and i quote:



what's the name of that big thruster sa likod sa shuttle? mao ning OMS...??

-RODION

[ethzneuron]

Shuttle then fires its main engines, called the OMS engines, to change the shape of its orbit to an ellipse with a smaller radius than the ISS' orbit.

-RODION

abi nako mao nani gud.. thanx sir rods. at LEO kaning OMS mao naman sad mahimong main engine kay hurot naman pod ang big 3 thrusters.

[Lovely Charm]

hav u guys flown a space shuttle na?

[rodsky]

abi nako mao nani gud.. thanx sir rods. at LEO kaning OMS mao naman sad mahimong main engine kay hurot naman pod ang big 3 thrusters.

Yes, in a simulation I would consider them my "main engines" (as opposed to RCS thrusters), but I don't know what real astronauts call them once in LEO

-RODION

[rodsky]

hav u guys flown a space shuttle na?

Only NASA astronauts have the opportunity to "fly" (I use quotes because most of the time, you basically just "guide" the shuttle...the flying part only occurs the last few minutes before landing it at the cape or at Edwards) the space shuttle. Not even qualified ESA or RSA pilot/astronauts (who regularly ride the shuttle to the ISS) are allowed to act as commander/pilot on the shuttle.

However, those who have access to Orbiter, can experience flying the shuttle and doing operations in LEO, all within the confines of a simulated environment nga very strict when it comes to Newtonian/Galilean physics and Kepler's laws.

Orbiter (simulator) - Wikipedia, the free encyclopedia

Orbiter - A free space flight simulator

I've been an addon developer for Orbiter for over 7 years now, and yes, I've flown various types of addons meant to simulate complete STS operations.

-RODION