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Conversion between coe and rv is not transitive #62

Juanlu001 opened this Issue Jul 2, 2015 · 1 comment


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Juanlu001 commented Jul 2, 2015

This is a consequence on my indecision about using the semimajor axis or the semilatus rectum. To avoid singularities and problems (see #37) I should probably move to using the semilatus rectum definitively.

If I make this change, probably the special function introduced in #38 won't be needed anymore.

@Juanlu001 Juanlu001 self-assigned this Jul 2, 2015

@Juanlu001 Juanlu001 added this to the 0.4 milestone Jul 2, 2015

Juanlu001 added a commit to Juanlu001/poliastro that referenced this issue Jul 2, 2015

Added conversion between coe and mee
The conversion is made transitive and non singular through
the use of semilatus rectum instead of semimajor axis, see poliastro#62.
The case of polar inclination is still pending.

@Juanlu001 Juanlu001 closed this in 828d328 Jul 3, 2015

@Juanlu001 Juanlu001 removed the 1 - Ready label Jul 3, 2015


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Juanlu001 commented Jan 23, 2016

My indecision still holds, so I'm reopening this issue.

I find myself never dealing with parabolic orbits, yet I introduced this change and I find it extremely annoying for the remaining 100 % of my use cases. I'm thinking of reverting it once and for all.

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