4 ms·
Question: This was posted half a day ago and was estimated to happen (or not) in less than 1.5 days from now. Now, or later today, when there is less time to th
by flexie 6y ago
Question: This was posted half a day ago and was estimated to happen (or not) in less than 1.5 days from now. Now, or later today, when there is less time to the collision, can't they calculate with far more accuracy, whether the objects will collide?
- SethTro 6y agoOnly if one of the two objects has passed over one of their tracker stations (and they got a good scan of it)
- LoSboccacc 6y agoa 0.001% uncertainty in speed is about 7km uncertainty in position after a day
- flexie 6y agoThen how can they say 1-20% risk of collision?
- LoSboccacc 6y agoprob they can measure speed at a higher accuracy than one mm/s, also orbit have a relatively low inclination difference and objects have a size, so that the impact area is not a point but a larger ellipses of varying overlap between bodies.