U. S. Space Force successfully launches additional Tranche 1 satellites, expands Proliferated Warfighter Space Architecture

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  • Space Systems Command
EL SEGUNDO, Calif. --  U.S. Space Force’s Space Systems Command (SSC) and the Space Development Agency (SDA) launched the SDA’s Tranche 1 (T1) Transport Layer-E (T1TL-E) mission at 1:32 p.m. PDT  today, aboard a SpaceX Falcon 9 rocket from Space Launch Complex 4 East (SLC-4E) at Vandenberg Space Force Base, Calif. 

The National Security Space Launch (NSSL) program, under SSC’s System Delta 80 (SYD 80), successfully delivered the SDA’s 21 data transport T1 SVs into low Earth Orbit (LEO). These SVs will support the tracking of advanced missile threats by providing secure, low-latency, beyond-line-of-sight (BLOS) tactical communication links, delivering a resilient, optically-connected network of integrated capabilities to the warfighter at speed.

“The National Security Space Launch (NSSL) program team successfully executed a launch today for our Space Development Agency partners, helping build out another orbital plane for their communications layer,” said U.S. Space Force Col. Ryan Hiserote, SSC SYD 80 commander.

As part of this partnership, the NSSL program team performs independent mission assurance for the launch vehicle, leads the launch campaign, and together with the mission support provided by Space Launch Delta 30 (SLD 30), ensures the safe delivery of their capability to orbit.

“We look forward to continuing our close partnership to deliver additional Tranche 1 and 2 missions for SDA over the next two years as part of NSSL’s continued delivery of responsive and reliable launch for our Nation,” Hiserote said.

SYD 80 executes the U.S. Space Force's core function of Space Access, performing space lift and range control missions in close partnership with SSC’s 30th and 45th Space Launch Deltas. Additionally, SYD 80 develops resilient and ready launch and test infrastructure to expand U.S. economic, technological, and scientific leadership, and delivers servicing, mobility, and logistics capabilities that operate in, from, and to the space domain.

SSC is the U.S. Space Force field command responsible for acquiring, developing, and delivering resilient capabilities to outpace emerging threats and protect our Nation’s strategic advantage in, from, and to space. SSC manages a $15.6 billion annual space acquisition budget for the Department of War, working with joint forces, industry partners, government agencies, academia, and allied nations. For more information, visit ssc.spaceforce.mil and follow @USSF-SSC on LinkedIn. 

For more information on the SDA’s T1 SVs launched on today’s mission, go to: https://www.sda.mil/home/news/news-releases/




Photo Here:

A SpaceX Falcon 9 rocket lifts off in support of a National Security Space Launch (NSSL) mission to deliver 21 Space Development Agency (SDA) data transport Trance 1 (T1) space vehicles to orbit from Space Launch Complex 4 East (SLC-4E), Vandenberg Space Force Base, Calif., on July 19, 2026. This launch was executed in partnership between the SDA and the Space Systems Command (SSC) System Delta 80 (SYD 80), which oversees the NSSL program team that performs independent mission assurance for the launch vehicle, leads the launch campaign, and together with the mission support provided by Space Launch Delta 30 (SLD 30), ensures the safe delivery of this SDA capability to low Earth orbit (LEO).  (Courtesy photo by SpaceX)

 

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