SDA Tranche 2 Transport Layer B

Overview

Destination: Polar Orbit
Mission: Government/Top Secret

Polar Orbit Space Launch Complex 3E Vandenberg SFB, CA, USA

Classified mission launched by the Space Development Agency (SDA) for Tranche 2 Transport Layer.

Updates

Cosmic_Penguin • April 10, 2025, 5:35 a.m.

NET September 2026.



Vulcan

Family:
Configuration: Vulcan

Vulcan

See Details
Specifications
  • Stages
    2
  • Length
  • Diameter
    5.4 m
  • Fairing Diameter
    5.4 m
  • Launch Mass
  • Thrust
Family
  • Name
    Vulcan
  • Family
  • Variant
    Vulcan
  • Alias
  • Full Name
    Vulcan
Payload Capacity
  • Launch Cost
  • Low Earth Orbit
  • Geostationary Transfer Orbit
  • Direct Geostationary
  • Sun-Synchronous Capacity

United Launch Alliance

United Launch Alliance

(ULA)

CEO: Tory Bruno Founded: 2006 Successes: 169 Failures: 0 Pending: 42

Agency Type:

United Launch Alliance (ULA) is a joint venture of Lockheed Martin Space Systems and Boeing Defense, Space & Security. ULA was formed in December 2006 by combining the teams at these companies which provide spacecraft launch services to the government of the United States. ULA launches from both coasts of the US. They launch their Atlas V vehicle from LC-41 in Cape Canaveral and LC-3E at Vandeberg. Their Delta IV launches from LC-37 at Cape Canaveral and LC-6 at Vandenberg.

INFO WIKI

Vandenberg SFB, CA, USA

Space Launch Complex 3E


Kuaizhou-1A
Success
6 hours, 1 minute ago
Traffic VDES A & B
Launch Area 95A - Jiuquan Satellite Launch Center, People's Republic of China

Two technology demonstration satellites for satellite transmissions of signals for the VHF Data Exchange System (VDES), a successor to the current Au…


Falcon 9
Success
18 hours, 19 minutes ago
Starlink Group 11-25
Space Launch Complex 4E - Vandenberg SFB, CA, USA

A batch of 28 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Zhuque-3
Success
2 days, 11 hours ago
Demo Flight
Launch Area 96B - Jiuquan Satellite Launch Center, People's Republic of China

First test launch of LandSpace’s ZQ-3 rocket, with a dummy payload. The rocket’s 1st stage will attempt to land on a landing pad about 300 km downran…


Falcon 9
Success
2 days, 16 hours ago
Starlink Group 6-95
Space Launch Complex 40 - Cape Canaveral SFS, FL, USA

A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Falcon 9
Success
3 days, 9 hours ago
Starlink Group 15-10
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.


Vega-C
Success
3 days, 21 hours ago
KOMPSAT-7
Ariane Launch Area 1 (ELV) - Guiana Space Centre, French Guiana

KOMPSAT-7 is the follow-up model of KOMPSAT-3A whose mission is to provide high-resolution satellite images to satisfy South-Korea's governmental and…


Falcon 9
Success
4 days, 7 hours ago
Starlink Group 6-86
Launch Complex 39A - Kennedy Space Center, FL, USA

A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Long March 7A
Success
5 days, 2 hours ago
Shijian 28
201 - Wenchang Space Launch Site, People's Republic of China

Classified experimental Chinese satellite of unknown purposes.


Falcon 9
Success
6 days, 20 hours ago
Transporter 15 (Dedicated SSO Rideshare)
Space Launch Complex 4E - Vandenberg SFB, CA, USA

Dedicated rideshare flight to a sun-synchronous orbit with dozens of small microsatellites and nanosatellites for commercial and government customers.


Soyuz 2.1a
Success
1 week, 1 day ago
Soyuz MS-28
31/6 - Baikonur Cosmodrome, Republic of Kazakhstan

Soyuz MS-28 will carry three cosmonauts and one astronaut to the International Space Station aboard the Soyuz spacecraft from the Baikonur Cosmodrome…