SpaceX launch recap: Live updates from SES O3b mPOWER mission from Cape Canaveral, Florida
Original story: Monday afternoon, SpaceX's Falcon 9 rocket launch countdown clock ticked all the way down to just 11 seconds remaining — but crews abruptly scrubbed the liftoff attempt.
So today, SpaceX will try again to launch a pair of SES O3b mPOWER satellites into medium-Earth orbit. Welcome to FLORIDA TODAY Space Team live coverage of today's mission from Cape Canaveral Space Force Station.
SpaceX is targeting 5:12 p.m. to launch the Falcon 9 from Launch Complex 40 at Cape Canaveral Space Force Station. No Brevard County sonic booms are expected. After soaring skyward due east, the rocket's first-stage booster will target landing aboard a SpaceX drone ship out at sea 8½ minutes after liftoff.
The Space Force's 45th Weather Squadron only predicted a paltry 20% chance of "go for launch" weather, citing cumulus clouds, lightning and surface electric fields — but stormy weather has steered clear of the Cape this afternoon.
Cape Canaveral: Is there a launch today? Upcoming SpaceX, NASA, ULA rocket launch schedule at Cape Canaveral
Countdown Timer
SpaceX Falcon 9 booster lands on drone ship
Update 5:20 p.m.: The Falcon 9 first-stage booster just landed aboard SpaceX's drone ship Just Read the Instructions in the Atlantic Ocean, completing its sixth mission.
Liftoff!
Update 5:12 p.m.: Liftoff! SpaceX has just launched the Falcon 9 from Cape Canaveral Space Force Station.
SpaceX rocket launch coming up in 5
Update 5:07 p.m.: Five minutes before SpaceX's Falcon 9 lifts off, the countdown appears to be proceeding as planned. Rocket fueling remains well underway at Launch Complex 40.
Following is a list of the last-minute countdown milestones. T-minus:
1 minute: Command flight computer begins final prelaunch checks; propellant tank pressurization to flight pressure begins.
45 seconds: SpaceX launch director verifies 'go for launch.'
3 seconds: Engine controller commands engine ignition sequence to start.
0 seconds: Falcon 9 liftoff.
SpaceX rocket booster to land on drone ship
Update 5:02 p.m.: Today's mission will mark the Falcon 9 first-stage booster's sixth flight, SpaceX reported.
The booster previously flew the O3b mPOWER-E, Crew-10, Bandwagon-3 and two Starlink missions. Following stage separation, crews expect the booster to land on the SpaceX drone ship Just Read the Instructions in the Atlantic Ocean 8 minutes, 35 seconds after liftoff.
SpaceX SES mission launch webcast begins
Update 4:58 p.m.: SpaceX's launch webcast is now posted above, right below our countdown clock.
Liftoff is scheduled in 14 minutes from Cape Canaveral Space Force Station.
SpaceX targeting Friday for next Starlink launch
Update 4:50 p.m.: SpaceX is now targeting Friday morning — rather than Thursday morning — to launch another Falcon 9 and deploy a payload of Starlink satellites from Cape Canaveral Space Force Station, a Federal Aviation Administration operations plan advisory shows.
More mission details:
Launch window: 4:50 a.m. to 9:32 a.m.
Location: Launch Complex 40.
Trajectory: Southeast.
Sonic booms: No.
Live FLORIDA TODAY Space Team coverage: Starts 90 minutes before liftoff at floridatoday.com/space.
SpaceX rocket fueling is now underway
Update 4:41 p.m.: Falcon 9 fueling procedures are now underway at Launch Complex 40, as evidenced by a frost ring forming on the rocket's exterior.
That means the SES O3b mPOWER mission countdown is locked in to lift off at 5:12 p.m. without any delays, or else today's launch must be postponed to a later date.
In a tweet, SpaceX officials announced odds of "go for launch" weather conditions have jumped up to 60%.
SpaceX's launch webcast starts 15 minutes before liftoff
Update 4:30 p.m.: In a tweet this morning, SES officials reminded space fans that SpaceX's mission livestream will begin about 15 minutes before liftoff.
We'll post the SpaceX webcast right below our countdown clock after it goes live.
SpaceX launch to be 62nd of year from Space Coast
Update 4:20 p.m.: SpaceX's upcoming Falcon 9 launch will clock in as the 62nd orbital rocket launch thus far during 2025 from Cape Canaveral Space Force Station and NASA's Kennedy Space Center.
This cadence is trending fast enough to reach 100 annual orbital rocket launches for the first time from Florida's Space Coast.
In the Cape's 61st liftoff this year, a SpaceX Falcon 9 rocket launched 24 Amazon Project Kuiper internet satellites into low-Earth orbit Wednesday from Cape Canaveral Space Force Station.
Click here for the FLORIDA TODAY Space Team's updating tally listing all of this year's missions, complete with photo galleries and story links.
SpaceX launch prep underway in Brevard
Update 4:10 p.m.: Brevard County Emergency Management officials have activated the agency's launch operations support team ahead of SpaceX's upcoming Falcon 9 launch.
At the Cape, NASA's Kennedy Space Center has terminated Phase I lightning watches for all areas. So conditions are now green across the board on the weather front.
SpaceX lauds long launch relationship with SES
Update 4 p.m.: In a tweet during Monday's countdown, SpaceX officials noted this mission marks the company's 15th launch with SES dating to 2013.
From an August 2020 FLORIDA TODAY story: "SES has been a critical partner for SpaceX. It was the first company to invest in CEO Elon Musk's promise of rocket reusability, entrusting its SES-10 spacecraft on the first re-flight of a Falcon 9 rocket in March 2017.'
SpaceX's Monday scrub remains mystery
Update 3:45 p.m.: SpaceX officials have yet to publicly state why Monday's launch countdown halted with 11 seconds left on the clock.
On a positive note, SpaceX did report "vehicle and payload remain healthy" in a post-scrub tweet.
Lightning, wind warnings terminate across Cape
Update 3:30 p.m.: Throughout the afternoon, a strong wind warning at NASA's Kennedy Space Center called for potential 25-knot winds gusting to 35 knots. That warning is no longer in effect.
Following suit, Phase II lightning warnings extending across KSC and Cape Canaveral Space Force Station were terminated by about 2:40 p.m.
To the south, the National Weather Service has issued a flash flood warning for portions of rain-drenched Melbourne, West Melbourne and Melbourne Village until 5 p.m.
For the latest news from Cape Canaveral Space Force Station and NASA's Kennedy Space Center, visit floridatoday.com/space. Another easy way: Click here to sign up for our weekly Space newsletter.
Rick Neale is a Space Reporter at FLORIDA TODAY. Contact Neale at Rneale@floridatoday.com. Twitter/X: @RickNeale1
Space is important to us and that's why we're working to bring you top coverage of the industry and Florida launches. Journalism like this takes time and resources. Please support it with a subscription here.
This article originally appeared on Florida Today: SpaceX launch recap: Updates from SES satellite liftoff at Cape Canaveral
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