perigee shift?
Posted by John Vidale on February 01, 2008 at 12:30:35:

how does the perigee shift work?

Follow Ups:
     ● Re: perigee shift? - Roger Hunter  14:27:51 - 2/1/2008  (73248)  (1)
        ● seems ridiculous to me - John Vidale  22:38:54 - 2/1/2008  (73253)  (1)
           ● Re: seems ridiculous to me - Roger Hunter  07:19:22 - 2/2/2008  (73255)  (1)
              ● not sure - John Vidale  07:27:15 - 2/2/2008  (73256)  (1)
                 ● Re: not sure - Roger Hunter  08:36:10 - 2/2/2008  (73257)  (0)