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Additional Media

Live: SpaceX Falcon 9 rocket launches from California for U.S. Military's Space Development Agency

Watch a live coverage as SpaceX launches a Falcon 9 rocket from California carrying satellites for the Space Development Agency's Proliferated Warfighter Space Architecture satellite constellation. Liftoff from Space Launch Complex 4E (SLC-4E) at Vandenberg Space Force Base is currently is now scheduled for 12:39 a.m. PDT (3:39 a.m. EDT …

SDA's Fourth Tranche 1 Mission

Livestream on X

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 A

Circle Image

Overview

Destination: Polar Orbit
Mission: Government/Top Secret

Polar Orbit Space Launch Complex 4E Vandenberg SFB, CA, USA Probability: 80%
B1103 - Landing Zone 4

Tranche 1 Transport Layer A 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 Northrop Grumman.

Telemetry

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

Updates


hitura-nobad • Oct. 10, 2026, 7:40 a.m.

Liftoff!


LL2 • Oct. 10, 2026, 7:23 a.m.

Unofficial Re-stream by SPACE AFFAIRS has started


Cosmic_Penguin • Oct. 10, 2026, 12:45 a.m.

Tweaked T-0.


Cosmic_Penguin • Oct. 9, 2026, 2:57 p.m.

Tweaked T-0.


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


B1103

Status: Active


Type: Core
Flight Proven: Yes
First Flight: April 7, 2026
Last Flight: October 10, 2026
Flights: 6
Landings Attempted: 6
Landings Successful: 6
Previous B1103 Flights

Landing Information

The Falcon 9 first stage B1103 has landed on Landing Zone 4 after its 6th flight.

Result: Successful Return to Launch Site landing at Landing Zone 4.

SpaceX

SpaceX

(SpX)

CEO: Elon Musk Founded: 2002 Successes: 729 Failures: 15 Pending: 135

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
Spaceflight Now

SpaceX to make another attempt to launch 21 data satellites for Space Development Agency

Liftoff of the Falcon 9 rocket from Vandenberg Space Force Base in California carrying satellites for the Space Development Agency’s Proliferated Warfighter Space Architecture constellation is scheduled for 12:39 a.m. PDT (3:39 EDT / 0739 …

Arstechnica

Rocket Report: A rare Falcon 9 scrub; is it just about Vulcan's time to shine?

"I can say we’re weeks away from launching on Vulcan."

Spaceflight Now

Live coverage: SpaceX to launch 21 data transport satellites for the Space Development Agency

The Tranche 1 Transporter Layer A mission is the fourth flight supporting the Space Development Agency’s Proliferated Warfighter Space Architecture constellation. Liftoff from pad 4E at Vandenberg Space Force Base is scheduled for 1:17 a.m…

NASASpaceflight

Launch Preview: Flights from South Korea, China, USA planned for this week

On the heels of an impactful few days of launches from SpaceX, this week shapes… The post Launch Preview: Flights from South Korea, China, USA planned for this week appeared first on NASASpaceFlight.com.

NASASpaceflight

Launch Preview: Crew-13 to launch to ISS, Falcon Heavy to launch mission for the NRO

Four orbital launches are expected this week, all by SpaceX’s Falcon 9 and Falcon Heavy… The post Launch Preview: Crew-13 to launch to ISS, Falcon Heavy to launch mission for the NRO appeared first on NASASpaceFlight.com.

Vandenberg SFB, CA, USA

Space Launch Complex 4E


Soyuz 2.1b/Fregat-M
Success
1 day ago
Glonass-K1? (Kosmos 2621?)
43/3 (43L) - Plesetsk Cosmodrome, Russian Federation

Note: Payload identity uncertain. Glonass-K are the third generation of satellite design for GLONASS satellite navigation system. GLONASS is a Rus…


Falcon 9
Success
1 day, 13 hours ago
USSF-432
Space Launch Complex 4E - Vandenberg SFB, CA, USA

A classified mission for the United States Space Force. It is possibly a batch of classified LEO satellites based on SpaceX’s Starshield satellite bu…


Ceres-2
Success
1 day, 14 hours ago
4 satellites
Launch Area 95A - Jiuquan Satellite Launch Center, People's Republic of China

Share-ride of 4 commercial Earth observation and technology demonstration satellites to SSO, details TBD.


Long March 2C
Success
2 days, 22 hours ago
Yaogan 51-07 to 09
Launch Complex 3 (LC-3/LA-1) - Xichang Satellite Launch Center, People's Republic of China

3 Chinese military “remote sensing” satellite of unknown purposes.


Kinetica 2
Success
5 days, 13 hours ago
SpaceSail Polar Group #17
Launch Area 140 - Jiuquan Satellite Launch Center, People's Republic of China

18 Low Earth Orbit communication satellites with Ku, Q and V band payloads for the G60 constellation operated by Shanghai Spacesail Technologies with…


Electron
Success
5 days, 21 hours ago
The Sea God Surveys (iQPS Launch 9)
Rocket Lab Launch Complex 1A - Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand

Synthetic aperture radar Earth observation satellite for Japanese Earth imaging company iQPS.


Falcon 9
Success
1 week, 1 day ago
Starlink Group 15-18
Space Launch Complex 4E - Vandenberg SFB, CA, USA

A batch of 27 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


GSLV Mk II
Success
1 week, 1 day ago
IRNSS-1L (NVS-03)
Satish Dhawan Space Centre Second Launch Pad - Satish Dhawan Space Centre, India

This is a replacement satellite for the Indian Regional Navigation Satellite System. The constellation will provide India with an alternative to GPS …


Falcon 9
Success
1 week, 5 days ago
Starlink Group 15-16
Space Launch Complex 4E - Vandenberg SFB, CA, USA

A batch of 27 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Long March 8A
Success
2 weeks ago
SatNet LEO Group 28
Commercial LC-1 - Wenchang Space Launch Site, People's Republic of China

A batch of 9 Low Earth Orbit communication satellites for the Chinese state owned SatNet constellation operated by the China Satellite Network Group.…