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I Typo in elliptical orbit energy derivation?

  1. Mar 17, 2019 at 6:20 AM #1
    I'm reading through a derivation for the energy of a satellite in an elliptical orbit. Shouldn't EO-2 read as:
    ... and not as shown in the following?

  2. jcsd
  3. Mar 17, 2019 at 7:01 AM #2


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    Looks like a typo to me.
  4. Mar 19, 2019 at 6:38 AM #3
    It would depend on what is the angle. Or where. It says it is the polar angle, right?
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