Pegasus • Swift boost

Northrop Grumman’s Stargazer airplane launch a Pegasus XL rocket carrying the Link spacecraft, manufactured by Katalyst Space Systems. Stargazer carried the Pegasus XL up to an altitude of around 40,000 feet before releasing it. The Link spacecraft will rendezvous with the Neil Gehrels Swift Observatory and boost it to a safe operating orbit. Delayed from June 27 and 30. Delayed from July 1. Scrubbed on July 2 due to in-flight anomaly.