>> My name is Mark Bowman, and I work in the flight dynamics division
of the flight operations directorate at the NASA Johnson Space Center.
I'm the sole use lead technical specialist in that branch.
My division, the flight dynamics division, is responsible for the dynamic aspects of flight.
Launches, orbital maneuvers, de-orbiting, and landing.
So those are the flight dynamics or the dynamic phases of flight.
My responsibility is keeping track technically, keeping a technical knowledge,
of the sole use piloted spacecraft and the progress on unmanned cargo vehicles.
I'm supposed to keep track of the design features, any modifications, upgrades,
anomalies, resolutions and so forth, kind of be the eyes and ears of our astronauts as far
as keeping track of what's happening with those spacecraft.
So that as they can concentrate on the nominal things in their training
and brief then I can brief them on any issues with the spacecraft.
It's a continuous process, a cyclic process, there are four sole use launches per year,
we usually have two in the spring, one in the spring, one in the summer,
and then one in the fall and one in the winter.
About three to four weeks prior to a launch, they have what's called a council
of chief designers meeting where all of the senior Russian specialists and designers
of parts of the spacecraft get together and discuss the readiness of the vehicle.
And so I fly to Moscow and I attend that.
That's usually conducted about the same time as the final examinations
for our astronauts who've been training over in Russia for the flight, so I attend those.
Watch the day long simulation that's a complete dry run of the sole use launch,
docking, undocking, and landing process.
And then I prepare a briefing for our management and tell them any concerns I have
or if there are no concerns that everything's good to go.
Then I usually return to Moscow for the launch.
And I sit in the Russian Mission Control Center and listen to the space grand communications
between the flight controllers, the Russian flight controllers, and the crew members.
I try to do that in Russian so that there are no communication problems
or issues with the translation.
I go back to Houston and during the dock operations, there are other specialists
that deal with the crew members living in the space station.
And I prepare for the next series.
And then for a landing, I will also go over to mission control and do the same thing.
Sit in mission control and listen to the spacecraft communications.