Ovinomancer
No flips for you!
Huh? I can't make heads or tails of that. You seem to be talking about a soecific scenario, but haven't presented it. I'm completely lost on your relative speed thing, though.Changing from the earth’s Frame of reference and a sun centered frame of reference, a vector perpendicular to the velocity of the moon in the earth frame is no longer perpendicular in a solar frame. The shift is from 30-60 degrees, with the earth moving perpendicular to the moon in the solar frame, and varying the relative speeds from 1/2 to 2.
Well, that 1 degree is about 2.5 million km (per day), so you tell me if that seems like a lot.Over the course of a day, the earth’s motion shifts by one degree. That doesn’t seem to change the situation much, in the sense of how you would want to adjust the asteroid’s movement.
In all of this, is the deflection caused by the earth’s gravity big enough to matter? The effect in the earth frame puts the asteroid on an arc instead of a line, with (I’m thinking) more curvature closer to the earth.
Thx!
TomB
Not to the impact, actually. At the speeds involved, the acceleration due to Earth's gravity is mostly going to be seen in the outgoing trajectory. Near Earth Orbital speed is low, comparitively. The ISS is going about 7 km/s, so the asteroid is an order of magnitude faster. It will be bent, but the fastest acceleration will come when it's passing Earth, so it matters little for the intercept.
Go slower, and it matters more.