SpaceX launched a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Space Force Station on September 13 to deliver the final three O3b mPOWER satellites to medium Earth orbit for satellite operator SES. Liftoff occurred at 2:49 p.m. EDT (1849 UTC), with the mission designated O3b mPOWER-F and the three satellites identified as F11, F12 and F13.
Completion of Boeing-built constellation
The three spacecraft lofted on this flight were built by Boeing and represented the final additions to the O3b mPOWER constellation. Earlier reporting noted that these were the last three satellites Boeing delivered to SES, and their arrival at Cape Canaveral preceded the launch.
Mission context and milestones
This Falcon 9 flight carried three satellites on a single mission, the first mPOWER mission to launch three spacecraft at once after earlier flights typically orbited two. The launch was also recorded as SpaceX's 700th Falcon rocket launch to date, a total that the company’s tally split into 687 Falcon 9 rockets and 13 Falcon Heavy rockets.
Launch timeline and coverage
Pre-launch schedules listed an 87-minute window opening at 2:49 p.m. ET for the mission from SLC-40, with a live webcast beginning about 15 minutes before liftoff available on SpaceX’s mission page and on X @SpaceX. If the primary window slipped, a backup window was listed for Monday, September 14 with the same timing.
Industry and reporting notes
Multiple outlets covered the flight: live coverage and post-launch reporting documented the liftoff time, the satellite designations F11–F13, and the mission’s role in completing Boeing’s contribution to SES’s O3b mPOWER system. Reporting also emphasized the launch’s place in SpaceX’s Falcon family launch count.
With the three Boeing-built satellites now in orbit, SES’s O3b mPOWER constellation stands complete according to the available coverage surrounding the mission and Boeing’s deliveries.
