Kerbal Space Program

Stock game, on Windows 7. Ship has no clipped parts, in this state no engines, SAS is off.

This is an example of a problem ive been having for a little while now, I left the game running for about 20 minutes from my transfer at 100km above Kerbin, to Mun, at a periapse of 198.5km for an orbit and return to Kerbin. And noticed a drift without time warp of my periapse. At the time of this report, 35 minutes, is 198.0. so not quite 1.6m loss a minute, the previous target i had was a 13km periapse, and that gained. The effect is greater the further away the transfer is, the heavier the vessel is, and makes gravity assists very inaccurate. Its kind of like the effect of a highly circular orbit, makes the apoapse and periapse move, but with a highly eccentric orbit instead.

This combined with Bug #1978, means i cant leave any ships alone, and have to time accelerate them to their destination immediately. ive entirely missed a 14Gm encounter with eve, and a 21gm encounter with duna once they left kerbin's sphere of influence. An example to this, was my solar probe, which i had set up with a periapse of 7Gm, and left it for 9 in-game days with time acceleration for other projects. when i returned to it it had a periapse of 8.6Gm, and this bug has been fairly consistant in my game for the last 2 weeks or so, after reinstalling the game a number of times and trying to debunk it as one of my mods.