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A high-energy transfer suitable for humans could arrive at Mars needing to shed almost 13 km/s. Since Mars capture speed is less than 5.5 km/s, this means that the first aerobraking pass will need to shed as much as 7.5 km/s, and probably more, to avoid wandering out into interplanetary space with no way of going anywhere.
Use algebraic computations to determine the relative positions of Earth and Mars during which an optimal (low-energy) transfer of a spacecraft can occur. Combine this information with planetary-position data to determine the next launch opportunity to Mars.
24 kwi 2018 · According to this website I drew up a timeline of Mars transfer windows and the time you'd need to stay on Mars before the next return window: Blue to red arrows are Earth to mars transitions, red to blue the opposite. Yellow boxes are amount of time on Mars.
19 wrz 2024 · SpaceX, Elon Musk-owned private space tech company, has set its sights on launching its first Mars mission during the Earth-Mars transfer window in 2026. This window, which occurs approximately every 26 months, will next open in October 2024, as calculated using the Hohmann transfer orbit principle.
Figure 1 shows windows for Earth-Mars transfers between 2015 and 2025. The blue line shows the sum of hyperbolic excess velocity in Earth departure and Mars arrival.
Click the "Plot it!" button. After a few seconds a plot will appear showing how much Δv is required to reach your destination for different departure dates and times of flight. Click on any point on this plot to see full details of the selected transfer.
1 paź 2020 · The weather at Mars, the type of launcher and the laws of physics governing the planets determined a 12-day launch window starting on 20 September 2022. Efficient orbital transfers, good communications and no large dust storms on the martian horizon make the chosen trajectory the fastest and safest choice.
