ULA Social | AEHF-5
7 August 2019 | Cape Canaveral Air Force Station

Page One of Two
The United Launch Alliance (ULA) Social participants at Space Launch Complex 41 as seen in a tweet from ULA.
The Atlas V Launch Control Center in the Atlas Spaceflight Operations Center (ASOC).This room will be filled with people for the launch.
The view of Space Launch Complex 41 (SLC-41) with the AEHF-5 Atlas V on the pad as seen from the roof of the ASOC. The large building at center is the old Titan IV Solid Rocket Motor Assembly and Readiness Facility (SMARF).
The Atlas V booster undergoing processing in the ASOC for the Crewed Flight Test that will carry astronauts to the International Space Station aboard Boeing's CST-100 Starliner spacecraft.
The Atlas V is constructed of structurally stable aluminum isogrid tanks. An interior section of which can be seen here showing the isogrid pattern.
The Vertical Integration Facility at SLC-41, seen at left, is a 286-foot tall steel structure where the Atlas V vehicle components and its payload are stacked vertically on the Mobile Launch Platform, which is then moved by rails to the launch pad. Far down the road at center is the old Titan IV Vertical Integration Building. Closer up the road to the right is the SMARF.
SLC-41 with the AEHF-5 Atlas V on the pad. The Atlas V is flying in its 551 configuration meaning it has a 5-meter payload fairing, 5 solid rocket boosters, and 1 Centaur engine on its second stage.

From the ULA AEHF-5 mission overview giving details about the Atlas V and its Centaur upper stage:

The Centaur second stage is 10 ft. in diameter and 41.5 ft. in length. Its propellant tanks are constructed of pressure-stabilized, corrosion-resistant stainless steel. Centaur is a cryogenic vehicle, fueled with liquid hydrogen and liquid oxygen, powered by an RL10C-1 engine producing 22,900 lb. of thrust. The cryogenic tanks are insulated with a combination of helium-purged blankets, radiation shields and spray-on foam insulation (SOFI). The Centaur forward adapter (CFA) provides structural mountings for the fault-tolerant avionics system and structural and electrical interfaces with the spacecraft.
The booster is 12.5 ft. in diameter and 106.5 ft. in length. The booster’s tanks are structurally rigid and constructed of isogrid aluminum barrels, spun-formed aluminum domes and intertank skirts. Booster propulsion is provided by the RD-180 engine system (a single engine with two thrust chambers). The RD-180 burns RP-1 (Rocket Propellant-1 or highly purified kerosene) and liquid oxygen and delivers 860,200 lb. of thrust at sea level. Five solid rocket boosters (SRBs) generate the additional power required at liftoff, with each SRB providing 348,500 lb. of thrust. The Centaur avionics system provides guidance, flight control and vehicle sequencing functions during the booster and Centaur phases of flight.

A portion of the payload fairing showing the various mission decals. Again, from the AEHF-5 mission overview:
Payload Fairing (PLF)
The spacecraft is encapsulated in a 5-m (17-ft) diameter short payload fairing. The 5-m PLF is a sandwich composite structure made with a vented aluminum-honeycomb core and graphite-epoxy face sheets. The bisector (two-piece shell) PLF encapsulates both the Centaur and the satellite. The vehicle’s height with the 5-m short PLF is approximately 197 ft..
Back at the ASOC the ULA Social heard from a number of speakers concerning the AEHF-5 mission along with meeting United Launch Alliance CEO Tory Bruno.
Besies being an executive, Tory Bruno is also aerospace engineer. He discussed ULA's current projects along with an update on the development of ULA's new Vulcan rocket.
The day ended with a tour of the Morrell Operations Center (MOC) containing the 45th Space Wing's range operations center and the weather squadron at Cape Canaveral Air Force Station.
The MOC works to ensure public safety while providing support for all the users of the Eastern Range.
A view of the range operations center set up for the AEHF-5 Atlas V launch the next day.
As a function of range safety, a rocket's flight is monitored from here and its flight can be terminated if it goes off course.
The range is also monitored for intrustions into the range, like a boat or plane gone astray, that might pose a hazard to safety or operations.
A view of the 45th Weather Squadron Multi-Domain Operations Center where the weather is closely monitored in support of launch operations.
All contents copyright Lunar Cabin