31 May
2010
31 May
'10
2:01 p.m.
I calculated the altitude of Negai*" using 'Newton solution of Keplerian equation'. I noticed that the altitude follows a drop line slowly.
http://www.ne.jp/asahi/hamradio/je9pel/00531ne2.jpg
For more details, http://www.ne.jp/asahi/hamradio/je9pel/newtnkep.htm
JE9PEL, Mineo Wakita