How to Inspect Planetoid Physical Characteristics

[ajburges]

Either I forgot how to do math, or the wiki stats for minmus are wrong. Given the the listed characteristics, a 24.449 km orbit should have a period of 1h 1m 12.72s (11:1 resonance with sidereal rotation period). Instead, the actual period of such an orbit is 1h 1m 10s. What is creating the inaccuracy here? Is my math wrong or is one of the values on the wiki bad?

G=6.6739999509529e-11

M=2.6457897e19

r0=6e4

a=24499

t=2*pi*sqrt((r0+a)^3/(GM))=3672.72

Is there any way to directly inspect planet characteristics in game/config? I would prefer to have values more accurate than I could gain by experimentation. I changed orbit until I got the desired resonance on Minmus. but I would like to avoid such mishaps in the future.

Edited August 3, 2015 by ajburges
Extend precision to used values

[FancyMouse]

You're suffering from inaccurate GM value to begin with. Since you're talking about 0.1%-magnitude difference here, rounding up to 3 digits after decimal place for G and M is going to give you errors.

[ajburges]

I rounded to 3 digits to save typing. OP corrected.