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Watch live: SpaceX launches SDA Tranche 1 satellites from California on Falcon 9 rocket

Watch a live coverage as SpaceX launches a Falcon 9 rocket from California satellites for the Space Development Agency's Proliferated Warfighter Space Architecture satellite constellation. Liftoff fro...

SDA Tranche 1 Transport Mission

Livestream on X

Watch SpaceX launch Tranche 1 Transport Layer C for Space Force!

SpaceX is launching Tranche 1 Transport Layer C, the third of six missions under the U.S. Space Development Agency's Proliferated Warfighter Space Architecture, NET 4:11 p.m. PDT [23:11 UTC] on Octobe...

SpaceX

SpaceX designs, manufactures and launches advanced rockets and spacecraft. The company was founded in 2002 to revolutionize space technology, with the ultimate goal of enabling people to live on other planets.

SDA Tranche 1 Transport Layer C

Circle Image

Overview

Destination: Polar Orbit
Mission: Government/Top Secret

Polar Orbit Space Launch Complex 4E Vandenberg SFB, CA, USA Probability: 80%
B1093 - Of Course I Still Love You

Tranche 1 Transport Layer C 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 Lockheed Martin.

Telemetry

Launch trajectory and telemetry simulations provided by Flight Club - a rocket launch simulator and orbital trajectory visualiser for all things space!

Updates

Cosmic_Penguin • Oct. 15, 2025, 10:25 p.m.

Now targeting Oct 15 at 23:06 UTC


Cosmic_Penguin • Oct. 15, 2025, 11:06 p.m.

Liftoff.


LL2 • Oct. 15, 2025, 11:12 p.m.

Unofficial Re-stream by SPACE AFFAIRS has started


Cosmic_Penguin • Oct. 16, 2025, 2 a.m.

Payload separation.


Cosmic_Penguin • Oct. 16, 2025, 12:55 p.m.

Launch success.


Falcon 9

Family:
Configuration: Block 5

Falcon 9 is a two-stage rocket designed and manufactured by SpaceX for the reliable and safe transport of satellites and the Dragon spacecraft into orbit. The Block 5 variant is the fifth major interval aimed at improving upon the ability for rapid reusability.

See Details
Specifications
  • Stages
    2
  • Length
    70.0 m
  • Diameter
    3.65 m
  • Fairing Diameter
    5.2 m
  • Launch Mass
    549.0 T
  • Thrust
    7607.0 kN
Family
  • Name
    Falcon 9
  • Family
  • Variant
    Block 5
  • Alias
  • Full Name
    Falcon 9 Block 5
Payload Capacity
  • Launch Cost
    $52000000
  • Low Earth Orbit
    22800.0 kg
  • Geostationary Transfer Orbit
    8300.0 kg
  • Direct Geostationary
  • Sun-Synchronous Capacity

Booster Info


B1093

Status: Active


Type: Core
Flight Proven: Yes
First Flight: April 7, 2025
Last Flight: July 14, 2026
Flights: 15
Landings Attempted: 15
Landings Successful: 15
Previous B1093 Flights

Landing Information

The Falcon 9 first stage B1093 has landed on ASDS OCISLY after its 7th flight.

Result: Successful Autonomous Spaceport Drone Ship landing at Of Course I Still Love You.

SpaceX

SpaceX

(SpX)

CEO: Elon Musk Founded: 2002 Successes: 694 Failures: 15 Pending: 126

Agency Type:

Space Exploration Technologies Corp., known as SpaceX, is an American aerospace manufacturer and space transport services company headquartered in Hawthorne, California. It was founded in 2002 by entrepreneur Elon Musk with the goal of reducing space transportation costs and enabling the colonization of Mars. SpaceX operates from many pads, on the East Coast of the US they operate from SLC-40 at Cape Canaveral Space Force Station and historic LC-39A at Kennedy Space Center. They also operate from SLC-4E at Vandenberg Space Force Base, California, usually for polar launches. Another launch site is being developed at Boca Chica, Texas.

INFO WIKI

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Vandenberg SFB, CA, USA

Space Launch Complex 4E


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