They were taken from NASA's WB-57. One way you can tell it wasn't taken
from the ISS is the relation to the horizon. Pilots and aircrews know that
when another aircraft is at the horizon, it's at your altitude. Since the
launch vehicle is still in full boost, it's not high enough to be horizon
level with the ISS. I give it another 60 days before we see them for the 4th
or 5th time.

Rob