Falcon 9 Block 5 | SDA Tranche 1 Transport Layer B
Launch information
Favourite EmbedMission description
Tranche 1 Transport Layer B 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.
Launch status
Launch status information for space mission ‘Falcon 9 Block 5 | SDA Tranche 1 Transport Layer B’.
Success
Status: Launch Successful
Class: normal
Launch T0: Sept. 10, 2025, 2:12 p.m.
Timezone: America/Los_Angeles
Launch authority
Details about the the rocket, its target orbit and the launch pad location.
Mission |
SDA Tranche 1 Transport Layer B (PO) |
|---|---|
Launcher |
SpaceX |
Rocket |
Falcon 9 |
Location |
Vandenberg SFB, CA, USA |
Pad |
Space Launch Complex 4E |
Type |
Government/Top Secret |
Orbit |
Polar Orbit (PO) |
Satellites on-board
It seems no satellite can be associated to launch ‘Falcon 9 Block 5 | SDA Tranche 1 Transport Layer B’, for now. Check back soon, we keep tracking more and more satellites every single day.
Launch statistics
Tracking key statistics for space mission ‘Falcon 9 Block 5 | SDA Tranche 1 Transport Layer B’, classified in stats relative to the specific mission launch year or to all-time values.
Orbital Launch
#7058
To this date
Location Launch
#829
To this date
Pad Launch
#215
To this date
Agency Launch
#566
To this date
Orbital Launch
#209
Year 2025
Location Launch
#43
Year 2025
Pad Launch
#41
Year 2025
Agency Launch
#117
Year 2025
Latest news about the launch
News about the space mission ‘Falcon 9 Block 5 | SDA Tranche 1 Transport Layer B’ are fetched daily from the best sources online.
New U.S. military satellite constellation takes shape with first launch from Vandenberg SFB
The Space Development Agency’s Proliferated Warfighter Space Architecture constellation is expected to deliver global coverage beginning in 2027. Launch from Vandenberg Space Force Base occurred at 7:12 a.m. PDT (10:12 a.m. EDT / 1412 UTC).
SpaceX launches 21 satellites for Space Development Agency ‘Transport Layer’ military network
The satellites, made by York Space Systems, make up the first plane of a mesh network projected to have 126 spacecraft The post SpaceX launches 21 satellites for Space Development Agency ‘Transport Layer’ military network appeared first on SpaceNews.
Live coverage: Space Development Agency, SpaceX to launch next-gen national security satellites
The 21 satellites from York Space Systems are the first in the SDA’s Tranche 1 Transport Layer satellite constellation. SpaceX is targeting liftoff from pad 4 East at Vandenberg Space Force Base at 7:12 a.m. PDT (10:12 a.m. EDT / 1412 UTC).
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