Questions tagged [hohmann-transfer]
An orbital maneuver to transfer between two circular orbits consisting of one burn to enter the transfer orbit and one to circularize in the final orbit.
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What's the necessary Delta-v to provide for an interplanetary transfer for a spacecraft released by a space elevator?
This is a question proposed in the final Test of the MOOC "Space Mission Design and Operations" on the edX platform. I'm struggling with the question n° 6. Here is the problem: "You are ...
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Are out-of-ecliptic oblique interplanetary transfer orbits more efficient than in-ecliptic transfers?
Most illustrations and animations of interplanetary transfer orbits show simplified, coplanar circular planetary orbits and classical Hohmann transfers in the ecliptic plane. Reality is a bit messier. ...
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Is it always possible to do a Hohmann transfer orbit between two planets in a star system?
I’m curious if there are planets where the velocity at which they orbit around their sun and/or positions relative to each other are so badly aligned that it is impossible to do the Hohmann transfer ...
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How to calculate a Hohmann transfer when the target is moving retrograde
Exactly as the title says. I have two objects, both in circular orbits, and with the target object in a higher, retrograde orbit. How do I modify the Hohmann transfer formulae to find the angular ...
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Approach to Interplanetary Transfers in GMAT
I hope to find a straightforward process for designing interplanetary missions using the General Mission Analysis Tool (GMAT). This would involve calculating the required initial state, timing, and ...
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Delta-V vs Time equation for interplanetary transfers
I'm working on a project for my high school math class and my research question is about time vs delta-v budgets for an interplanetary transfer (e.g. earth to mars). I understand this is a relatively ...
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Hohmann Transfer - Adaptive Guidance Law
Is there an equivalent adaptive guidance law for the Hohmann transfer as there is with the initial ascent profile for a rocket launch (e.g. Powered Explicit Guidance)? This is for a personal project - ...
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what is 'f' (true anomaly) for in the orbital inclination change equation
I've been trying to make sense of the formula for an orbital inclination change for an elliptic orbit. This is for an orbit that is not altered in any way apart from its inclination. The equation from ...
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How can I show the ideal path from Earth to Mars in a vacuum using calculus?
I would like to use calculus to try and model the optimal path to mars in space, assuming the rocket starts with an initial velocity in the vacuum of space, and only accelerates due to the Sun's ...
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What is the difference between a Trans-Mars Injection and a Mars Transfer Orbit?
So I'm using this transfer orbit calculator and when simulating a transfer from LEO to Mars, in the delta-v breakdown, appear two different values: TMI (Trans-Mars Injection), at around 3000 m/s, and ...
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Porkchop plots/launch windows for Sun-Earth L2 to Mars transfers?
I've been using Earth-Mars launch windows, found with NASA's Trajectory Browser and EasyPorkchop, as launch windows from the Sun-Earth L2 Lagrange point to Mars, with the logic that since the L2 point ...
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How a continuous thrust orbit transfer can be compared with Hohmann transfer?
Suppose that I have found the solution of an optimal continuous thrust planar orbit transfer from circular orbit A to orbit B by means of a numerical method. It's considered that the mission must be ...
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Compute orbital parameters from transverse and radial velocity at a given distance from the focus
I've been pulling my hair on this problem for a couple of days now, researched a lot but have not been able to find results. Basically I'm writing a program capable of drawing a transfer orbit between ...
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Which of the 2 delta-v calculations for a Mercury orbit insertion from LEO is right and which is wrong?
This answer to the question "How to calculate delta-v required for a planet-to-planet Hohmann transfer?" gives among other things the 2 following equations: $v_{inject}=\sqrt{\left(\sqrt{\...
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Is it (theoretically) correct to apply an equation that is derived from a hyperbolic trajectory, to an elliptic transfer orbit?
The equation in question is this one: $$v^2 = v_e^2 + v_{\infty}^2$$ and it is showed in this answer. The Escape velocity page on Wikipedia mentions a link (num. 4) to the book "Fundamentals of ...
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