United Launch Alliance has targeted Saturday for the launch of a Delta IV Heavy from Vandenberg Air Force Base.
The rocket was first set to launch in December but issues during more than one attempt forced ULA to postpone the launch indefinitely.
The Jan. 19 date was announced Tuesday.
When the rocket takes off it will deliver a satellite for the National Reconnaissance Office into orbit.
Saturday’s launch is set for 11:05 a.m. from SLC-6.