Pegasus XL Rocket Set to Launch ICON Spacecraft

The Northrop Grumman L-1011 Stargazer aircraft lands on Oct. 19, 2018 at the Skid Strip at Cape Canaveral Air Force Station. A Pegasus XL rocket is attached to the underside of the aircraft with NASA's Ionospheric Connection Explorer, or ICON, satellite. Photo credit: NASA/Kim Shiflett
The Northrop Grumman L-1011 Stargazer aircraft lands on Oct. 19, 2018 at the Skid Strip at Cape Canaveral Air Force Station. A Pegasus XL rocket is attached to the underside of the aircraft with NASA’s Ionospheric Connection Explorer, or ICON, satellite.
Photo credit: NASA/Kim Shiflett

Good morning from NASA’s Kennedy Space Center in Florida.

Today we are be following preparations for the launch of a NASA spacecraft taking place over the Atlantic Ocean offshore about 50 miles from Daytona Beach in Florida. The Northrop Grumman L-1011 Stargazer aircraft is already airborne, having taken off from the Cape Canaveral Air Force

Station’s Skid Strip runway. It is carrying a Pegasus XL Rocket with NASA’s Ionospheric Connection Explorer, or ICON, satellite.

At Vandenberg Air Force Base in California, technicians install the starboard fin on the Northrop Grumman Pegasus XL rocket July 8, 2017. The Pegasus rocket is being prepared to launch NASA's Ionospheric Connection Explorer, or ICON, mission. Photo credit: Randy Beaudoin
At Vandenberg Air Force Base in California, technicians install the starboard fin on the Northrop Grumman Pegasus XL rocket July 8, 2017. The Pegasus rocket is being prepared to launch NASA’s Ionospheric Connection Explorer, or ICON, mission.
Photo credit: Randy Beaudoin

The 90-minute launch window opens at 3 a.m. EST, with a targeted release at 3:05 a.m. EST about 50 miles east of Daytona Beach, Florida. Ignition of the Pegasus XL rocket occurs five seconds after release from the Stargazer.

Launch management and government oversight for the mission is the responsibility of NASA’s Launch Services Program here at NASA’s Kennedy Space Center.

The official weather forecast calls for a 80 percent chance for favorable conditions for launch. The primary launch weather concerns are cumulous clouds.

This launch blog originates from the NASA News Center here on Florida’s Space Coast at the agency’s premier multi-user spaceport.

There’s more to come, so stay with us.