Frank Culbertson, Jr., Space Systems Group president, Orbital ATK Vernon Thorpe, program manager for NASA missions, United Launch Alliance Todd McNamara, launch weather officer, 45th Weather Squadron

Todd McNamara, launch weather officer, 45th Weather Squadron

Photos from day 2 of the Orbital ATK CRS-4/OA-4 events at Kennedy Space Center, Florida.

Photos from day 2 of the Orbital ATK CRS-4/OA-4 events at Kennedy Space Center, Florida.

Photos from day 2 of the Orbital ATK CRS-4/OA-4 events at Kennedy Space Center, Florida.

Half-way there.

A few things going on here: rocket is almost to the pad, an osprey in the foreground (r) and SpaceX's Pad 39a is visible in the background as well.

Photos from day 2 of the Orbital ATK CRS-4/OA-4 events at Kennedy Space Center, Florida.

Kirk Shireman, International Space Station Program manager Frank Culbertson, Jr., Space Systems Group president, Orbital ATK Vernon Thorpe, program manager for NASA missions, United Launch Alliance Todd McNamara, launch weather officer, 45th Weather Squadron

Kirk Shireman, International Space Station Program manager Frank Culbertson, Jr., Space Systems Group president, Orbital ATK

Photos from day 2 of the Orbital ATK CRS-4/OA-4 events at Kennedy Space Center, Florida.

Photos from day 2 of the Orbital ATK CRS-4/OA-4 events at Kennedy Space Center, Florida.

Photos from day 2 of the Orbital ATK CRS-4/OA-4 events at Kennedy Space Center, Florida.