SpaceX has been cleared to perform the first-ever ASDS landing for an LZ-4 capable mission at Vandenberg. As a result, JRTI will be only about two dozen miles offshore from the launch pad. The Falcon 9 cannot return to LZ-4 due to the NROL mission being prepped downrange.

— Michael Baylor (@MichaelBaylor_) November 17, 2018