An Ariane 5 rocket, operated by European Launch Service provider Arianespace, launched on its 109th scheduled flight, designated VA253, on Saturday.
The heavy lift rocket was scheduled to launch from pad Ensemble de Lancement Ariane 3 (ELA-3) at Europe’s spaceport in Kourou, French Guiana, on 31 July 2020. However, a hold was called, under two minutes to launch. Efforts to return to the countdown within the launch window were unsuccessful, resulting in a scrub and a rollback for a replacement of a sensor inside the liquid hydrogen tank in the launcher’s main cryogenic stage.