Both crates were verified only against themselves. dump_kepler writes the
element to state conversions and a state back to element round trip, which
check_kepler recomputes from the perifocal formulae, the rotation and the
vis-viva equation. dump_tle writes the parsed fields of eight element sets,
which check_tle reparses with a column indexed reader and a
reimplementation of the modulo ten checksum.