The Rocket Lab mission called Rocket Like a Hurricane has blasted off from the Māhia Peninsula.
The company aimed to deploy the first pair of Tropics storm monitoring satellites for Nasa on Monday.
The two-hour launch window opened on May 8 from 1pm when it launched smartly at 1.02pm for the first of two dedicated electron launches from Rocket Lab Launch Complex 1 Pad A on the Māhia Peninsula.
Watch a livestream from Launch Complex 1 below.