Is there anything canonical regarding safe jump distances for asteroid/planetoid belts? Or anything resembling a consensus on the topic if there's no canon?
WBH includes a method of generating the average and maximum sizes of the rocks in a belt, but I'm not so sure that's useful information for determining how closely you can jump in. You may be 100 diameters from your destination rock, but I doubt that you'd be able to plot accurately enough to take all the other rocks in the neighborhood into account. (Or at least not at early jump-capable TLs.)
The same method also produces the width of the belt in AU, but assuming that the safe jump-in distance is at the edge of the belt seems a bit excessive, especially given that belts can, under this method, be up to 10 AU wide.
I would expect that you'd be able to jump out from closer to an origin asteroid in any case, although how much closer depends on whether YTU has jump shadowing or not - without shadowing, you could easily jump from within a few thousand km from the asteroid, while with shadowing, you'd need to get a bit further out to avoid passing too close to any other asteroids, but real-time data on asteroid positions should at least make it possible to find a closer point than for a jump in, albeit at the cost of more complex calculations.
WBH includes a method of generating the average and maximum sizes of the rocks in a belt, but I'm not so sure that's useful information for determining how closely you can jump in. You may be 100 diameters from your destination rock, but I doubt that you'd be able to plot accurately enough to take all the other rocks in the neighborhood into account. (Or at least not at early jump-capable TLs.)
The same method also produces the width of the belt in AU, but assuming that the safe jump-in distance is at the edge of the belt seems a bit excessive, especially given that belts can, under this method, be up to 10 AU wide.
I would expect that you'd be able to jump out from closer to an origin asteroid in any case, although how much closer depends on whether YTU has jump shadowing or not - without shadowing, you could easily jump from within a few thousand km from the asteroid, while with shadowing, you'd need to get a bit further out to avoid passing too close to any other asteroids, but real-time data on asteroid positions should at least make it possible to find a closer point than for a jump in, albeit at the cost of more complex calculations.