GEORGE DILLER: The mobile service tower is sentry to the gantry-like structure that
provides the primary access to the launch vehicle.
As we saw there, some of the access platforms are being retracted.
And then the tower begins to move very slowly back away from the vehicle,
about 1,000 feet away once it’s completely retracted.
It’s a United Launch Alliance and Air Force team at the pad performing this operation.
Pad 17-B is the southernmost of the two pads at Launch Complex 17,
which is located on south Cape Canaveral Air Force Station.
The Delta II rocket is 130 feet tall from stem to stern,
and 8 feet in diameter. And we have a 9 ½ foot fairing atop
the rocket that’s enclosing the Dawn spacecraft.