ICON Launch Now Targeted for Oct. 9

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

NASA and Northrop Grumman coordinated with the U.S. Air Force Eastern Range for an earlier launch date for the agency’s Ionospheric Connection Explorer, or ICON, spacecraft from Cape Canaveral Air Force Station in Florida. ICON is now targeted for launch on Oct. 9, 2019, aboard a Northrop Grumman Pegasus XL rocket carried by the company’s L-1011 Stargazer aircraft.

ICON Launch Targeted for Oct. 10

Technicians extend the solar array on NASA's Ionospheric Connection Explorer (ICON) during a deployment test inside Building 1555 at Vandenberg Air Force Base in California on Aug. 10, 2019.
Technicians extend the solar array on NASA’s Ionospheric Connection Explorer (ICON) during a deployment test inside Building 1555 at Vandenberg Air Force Base in California on Aug. 10, 2019. Photo credit: NASA/Randy Beaudoin

NASA and Northrop Grumman currently are preparing the agency’s Ionospheric Connection Explorer, or ICON, spacecraft and the Pegasus XL rocket at Vandenberg Air Force Base in California for ferry to the Cape Canaveral Air Force Station in Florida by the L-1011 Stargazer aircraft on Oct. 1, 2019.

The launch has been rescheduled to Oct. 10, 2019, following the completion of a joint NASA/Northrop Grumman investigation into a Pegasus sensor reading that was not within normal limits during previous ferry and launch attempt flights. The cause of the issue is understood, and the flight hardware has been modified to address the issue.

Two L-1011 flights with Pegasus were conducted to verify the effectiveness of the modification with no issues. Functional tests are being performed on NASA’s ICON spacecraft, which utilizes Northrop Grumman’s LEOStar-2 platform, to ensure that the ICON spacecraft is ready for the upcoming integration activity, ferry flight and launch. As always, mission success for Pegasus and ICON is the top priority.