How Do You Calculate the Semi-Minor Axis for a Spacecraft's Orbit?

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To calculate the semi-minor axis for a spacecraft's orbit, the major axis is first determined by summing the distances of 150 km, 150 km, and 230 km, resulting in 530 km. The semi-major axis is then calculated by dividing the major axis by 2, yielding 265 km. The focal length is found by subtracting Earth's distance to the sun (150 km) from the semi-major axis, resulting in 115 km. The semi-minor axis is calculated using the equation b² = a² - f², leading to a semi-minor axis of 150 km. Accurate calculations are essential for successful mission planning.
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Sending a spacecraft to mArs! Help! pLease!

okay guys so you have to open this file to read the question accuretely.. i have done some calculations but not sure if they are correct.


So just this as best as i can, fist i figure out my semi-minor axis = a
by 150km +150 KM +230 km =530km (major axis) now to get me semi minor axis i will just divide it by 2 . Giving me 265km!

Focal lenght= 265km - Earth's disntace to the sun (150 km) =115 km


Now to get my semi minor axis i use the equation b2=(a2-f2)
(530Km-300km)=b2
b=150km
 
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