[Launch Alert] Launch on Schedule

[Launch Alert]

Tomorrow morning's (Aprill 11) launch of a Falcon 9 rocket from Vandenberg SFB, Calif. appears to be on schedule. The vehicle is slated to lift off from south base between approximately 7:25 and 7:35 a.m. PDT and carry the Weather System Follow-on – Microwave (WSF-M) spacecraft into orbit.

For countdown status and video feeds of the launch, go to:

https://www.spacex.com/launches/mission/?missionId=ussf-62

https://spaceflightnow.com

X @SpaceX

This information is subject to change.

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The following is a sonic boom advisory for the launch from SpaceX:

SpaceX Will Land Falcon 9 First Stage Booster on Land During Upcoming USSF-62 Mission

SpaceX is targeting Thursday, April 11 for Falcon 9's launch of the USSF-62 mission to low-Earth orbit from Space Launch Complex 4 East (SLC-4E) at Vandenberg Space Force Base in California. The 10-minute launch window opens at 7:25 a.m. PT. If needed, a backup opportunity is available Friday, April 12 with the same launch window.

About eight minutes after liftoff, Falcon 9's first stage will land on SpaceX’s Landing Zone 4 (LZ-4) at Vandenberg Space Force Base, California. There is the possibility that residents of Santa Barbara, San Luis Obispo, and Ventura counties may hear one or more sonic booms during the landing, but what residents experience will depend on weather and other conditions.

SpaceX’s live webcast will begin approximately 15 minutes before Falcon 9's liftoff at spacex.com/launches.

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The following is a media release about the launch from the U.S. Space Systems Command:

Space Systems Command, SpaceX Prepares to Launch Weather Satellite from California Thursday Morning

Summary: A SpaceX Falcon 9 rocket carrying the U.S. Space Force (USSF)-62 Space Vehicle (SV) was rolled out to Vandenberg Space Force Base's Space Launch Complex-4 East ahead of its upcoming launch

EL SEGUNDO, Calif. -- Space Systems Command’s Assured Access to Space (SSC/AATS) launch team and its mission partners are in final preparations for the U.S. Space Force (USSF)-62 mission from Vandenberg Space Force Base in northern Santa Barbara County, California. A SpaceX Falcon 9 rocket will launch the satellite for SSC’s Space Sensing Directorate into low-Earth orbit.

The rocket went vertical on Space Launch Complex-4 East (SLC-4E) as planned, ahead of its launch, scheduled for April 11 at 7:25 a.m. PDT during an approximate 10-minute launch window. A live feed on SpaceX.com and on SpaceX's feed on X will begin approximately 15 minutes ahead of liftoff.

"We're absolutely thrilled be out here on the Central Coast, with a superb team primed and ready to launch the USSF-62 satellite. It has an important mission ahead of it and we're excited for flight-proven Falcon 9 to deliver the satellite to orbit. And on this mission, we're using a first-stage booster whose history is purely commercial, having launched two Starlink missions, in additional to a flight-proven fairings, which is a first for a National Space Security Launch," said Col. Jim Horne, senior materiel leader for SSC's Launch Execution Delta. "With each national security launch, we add to America's capabilities and improve its deterrence in the face of growing threats."

SpaceX will recover the booster for refurbishment and reuse on a future launch. The rapid reusability of SpaceX's Falcon 9 rockets benefit all launch customers and the Space Force's continued partnership with SpaceX provides for manifest flexibility and cost savings.

Space Systems Command is the U.S. Space Force's field command responsible for acquiring, developing, and delivering resilient capabilities to protect our nation's strategic advantage in, from, and to space. SSC manages a $15.6 billion space acquisition budget for the Department of Defense and works in partnership with joint forces, industry, government agencies, academic and allied organizations to outpace emerging threats. Our actions today are making the world a better space for tomorrow.