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Questions tagged [transfer-time]

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3
votes
1answer
64 views

Ellipse area section from foci

I am wondering how to calculate the area between the 2 red dots towards the bottom and in turn calculate the time elapsed between the right red dot and the green dot at apogee. I figure if I can find ...
0
votes
1answer
118 views

Constant Acceleration in Space. How much time for a given distance?

I have been researching a lot and can't make any sense of it all, so I am trying my luck here. I want to program a simple formula that gives me the travel time in space. I have a constant thrust of ...
5
votes
1answer
108 views

How can I look for the best date of launch for gravity assist?

I am new to astrodynamics, and I am trying to learn about gravity assists, but I don't understand how I can easily decide a launch date and arrival late for the planet in which I calculate the gravity ...
1
vote
1answer
707 views

How to calculate a transfer orbit

I'm starting to study by myself orbital mechanics, but I don't understand well how can be calculated the transfer orbit. If I have for example a route Earth-Jupiter, how can I calculate it? I've read ...
7
votes
2answers
615 views

What is a High Energy Transfer Orbit and what are some examples of their usage?

In a question about the 6-hour Soyuz / ISS transfer the concept of a High Energy Transfer orbit is discussed. I've heard of Low Energy Transfer Orbits before, which are commonly used on extended ...
0
votes
1answer
185 views

Reducing transfer time between Mars and Saturn

How would I estimate the transfer time between Mars and Saturn if I have more Delta-V than necessary for a Hohmann transfer?
23
votes
2answers
5k views

How did Soyuz MS-04 reach the ISS in only 6 hours?

The Wikipedia Article on Soyuz MS-04 says: It is the first of the Soyuz MS series to rendezvous with the Station in approximately 6 hours, instead of the 2 day orbital rendezvous used for the ...
20
votes
2answers
3k views

Why did Soyuz TMA-18M take two days to reach the ISS?

Typically, a Soyuz crew vehicle takes 4 orbits to reach the ISS, but the Soyuz TMA-18M took 34 orbits or 2 days to reach it. Why is there so much variation from typical missions?