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REPORT COPYRIGHT VIOLATION IN REPLY
Message Subject OFFICIAL NASA VIDEO ADMITS To NEVER SENDING PEOPLE TO THE MOON
Poster Handle Anonymous Coward
Post Content
No, you can't, that's MY point. You said they went through the van allen radiation belts at 20,000mph and I happen to know their actual path would have had to have been spiral,
 Quoting: Anonymous Coward 67764349


No, it is essentially an ellipse (technically a "patched conic" between two ellipses).

in fact simply modifying an Earth orbit until it intersected with the moons orbit,
 Quoting: Anonymous Coward 67764349


More or less. A very eccentric Earth orbit that the is a close match to lunar orbit at the apogee.

meaning the time they spent in the affected zones was much longer than your 20,000mph figure is intended to indicate. Their actual velocity would have had to have been much slower, at that velocity they would have one tiny window of error
 Quoting: Anonymous Coward 67764349


It isn't a solely ballistic process. There are designed-in mid-course corrections.

and it woudl have required a tremendous deceleration to effect capture by the moons gravity..
 Quoting: Anonymous Coward 67764349


In a sense it is already captured; it continues an ellipse that has the Moon at one of the foci. As they pass behind the Moon they are at perigee relative to the Moon and the apogee is now the Earth. The expenditure of fuel is to circularize that orbit; reduce velocity until the apogee is as close to the Moon as the perigee (or should that be perilune?)


To calculate the actual time spent in any zone you cannot cherry pick data and say they moved vertically through the zones at 20,000mph, the actual vertical velocity would have been much much lower. You also cannot use average flux values to prove anything. Particle density in the lower proton belt varies radically from minute to minute.
 Quoting: Anonymous Coward 67764349


That's right; first you have to understand the actual flight path. Then you can work out how much of it was spent where. Numbers matter. Orbital elements matter. 20,000 MPH relative to what? The Earth? The Moon? The Sun?
 
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