MIRV has rotated 1/3 clockwise, showing upper stage #2 (Magenta)

The smoke trail indicates the amount of wind present during the launch.  As can be seen here, it did not turn into the wind but rather more down wind.  Perhaps the slow roll of the boost gave it a bit of a dutch-roll to turn it back downwind.  Overall, the boost phase was fairly vertical without veering in any particular direction.