Upper Stage Separation

The Ariane 5 upper stage brought the James Webb Space Telescope up to a speed of approximately 22 thousand miles per hour – headed for its final orbit around the second Lagrange point, commonly known as L2.

The upper stage engine has now cut off and the spacecraft has separated. An extra battery on the upper stage provided power for a boost after release of the telescope, distancing it from Webb.

Webb is now flying on its own in coast phase.