4 ms·
Your orbital period of 11.1 hours at 30 km looks wrong. The video shows about 7/8 of a 30-km orbit over 14 days (19 Nov - 3 Dec). The orbital period formula giv
by stromgo 12y ago
Your orbital period of 11.1 hours at 30 km looks wrong. The video shows about 7/8 of a 30-km orbit over 14 days (19 Nov - 3 Dec). The orbital period formula gives 14.6 days (2 * 3.14159265 * sqrt(30000^3/(6.67384e-11 * 10^13)) / 3600 / 24).
- clarkmoody 12y agoThat's absolutely possible -- I did some in-my-head units conversion. Maybe another look at the units: G - 6.67384e-11 [N (m/kg)^2] = [m^3 / (kg s^2)] M - 1.0e13 [kg] a - 30000 [m] sqrt([m^3] / ([m^3 / (kg s^2)] * [kg])) = sqrt([s^2]) = [s] 2*pi*sqrt(30000^3 / (6.67384e-11 * 1.0e13)) = 1,263,787 s = 14.6 days Well, how about that :-)