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Falcon 9 Block 5 | SDA Tranche 1 Transport Layer E

July 16, 2026 at 8:32 PM UTC

Vandenberg SFB, CA, USA

Falcon 9 Block 5 | SDA Tranche 1 Transport Layer E launch image
Mission imagery · Falcon 9 Block 5

Launch details

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T−00d00h00m00s

July 16, 2026 at 8:32 PM UTC

Status: Launch Successful · Live feed refreshes every 30 seconds

Space Launch Complex 4E

Vandenberg SFB, CA, USA · 34.6320, -120.6110

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Launch site
Space Launch Complex 4E

Vandenberg SFB, CA, USA

Launch probability
100%
Window opens
July 16, 2026 at 8:22 PM UTC
Window closes
July 16, 2026 at 9:09 PM UTC
Feed updated
July 16, 2026 at 10:11 PM UTC

Mission description

Tranche 1 Transport Layer E is one of six missions by the United States Space Force Space Development Agency (SDA) for the Proliferated Warfighter Space Architecture (PWSA) Tranche 1 Transport Layer constellation, which will provide assured, resilient, low-latency military data and connectivity worldwide to the full range of warfighter platforms from Low Earth Orbit satellites. The constellation will be interconnected with Optical Inter-Satellite Links (OISLs) which have significantly increased performance over existing radio frequency crosslinks. It is expected to operate over Ka band, have stereo coverage and be dynamically networked for simpler hand-offs, greater bandwidth and fault tolerance. This launch carries 21 satellites manufactured by York Space Systems.

Vehicle

Falcon 9 Block 5

Falcon · Block 5

Height

70 m

Diameter

3.65 m

LEO capacity

22,800 kg

Successful launches

623

Launch complex

Space Launch Complex 4E

Vandenberg SFB, CA, USA

Vandenberg Space Force Base is a United States Space Force Base in Santa Barbara County, California. Established in 1941, Vandenberg Space Force Base is a space launch base, launching spacecraft from the Western Range, and also performs missile testing. The United States Space Force's Space Launch Delta 30 serves as the host delta for the base, equivalent to an Air Force air base wing. In addition to its military space launch mission, Vandenberg Space Force Base also hosts space launches for civil and commercial space entities, such as NASA and SpaceX.

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Mission updates

Launch success.

July 16, 2026 at 10:11 PM UTC · Cosmic_Penguin

Unofficial Re-stream by SPACE AFFAIRS has started

July 16, 2026 at 8:33 PM UTC · LL2

Liftoff.

July 16, 2026 at 8:32 PM UTC · Cosmic_Penguin

Unofficial Re-stream by SPACE AFFAIRS has started

July 16, 2026 at 8:17 PM UTC · LL2

Tweaked T-0.

July 16, 2026 at 6:50 PM UTC · Cosmic_Penguin