Government investigators have exonerated SpaceX’s Falcon 9 rocket in the loss of a top secret space mission known as Zuma in January, blaming a malfunction in a component modified by Northrop Grumman that connected the launcher with its classified payload, according to the Wall Street Journal.

Departing Cape Canaveral at 8:37 a.m. EDT Thursday, the United Launch Alliance Atlas 5 rocket lifted a classified national security satellite into orbit for deployment.

This is the launch timeline to be followed by the Atlas 5 rocket’s ascent into orbit from Cape Canaveral with the advanced GOES-R weather satellite for NASA and NOAA. Launch is scheduled for Saturday at 5:42 p.m. EST (2242 GMT).