Adding launch
SpaceX / MISSION BRIEFING
SDA Tranche 1 Tracking Layer E
Falcon 9 Block 5 · Government/Top Secret
TBD
LAUNCH TIMETBDTiming is subject to mission updates
Mission image · SpaceX
Mission overview
Tranche 1 Tracking Layer E is one of five missions by the United States Space Force Space Development Agency (SDA) for the Proliferated Warfighter Space Architecture (PWSA) Tranche 1 Tracking Layer constellation, which will provide global indications, warning, tracking, and targeting of advanced missile threats, including hypersonic missile systems.
- Mission
- SDA Tranche 1 Tracking Layer E
- Mission type
- Government/Top Secret
- Provider
- SpaceX
- Target orbit
- Polar Orbit
Timeline
Scheduled event sequence from Launch Library 2. These are planned milestones, not confirmed telemetry. Events remain unconfirmed until a verified source reports them.
A verified event timeline has not been published for this mission.
Mission intelligence
Explore connectionsMission activity
Listening for verified changes
Activity appears when ORBITAL observes a change between source records. No historical events are invented.
Read source update
Schedule history
No changes recorded
Changes are recorded when ORBITAL retrieves data. The detection time may differ from the time the source changed its information.
Rocket
Falcon 9 Block 5SpaceX · United StatesFalcon 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.
Payload
SDA Tranche 1 Tracking Layer E
Payload details are described in the mission overview. No independently structured payload manifest or payload mass has been provided by the source.
Target orbit
SCHEMATIC · NOT A FLIGHT TRAJECTORY
- Orbit
- Polar Orbit
- Classification
- PO
Launch site
Space Launch Complex 4E
Vandenberg SFB, CA, USA
- Latitude
- 34.63200°
- Longitude
- -120.61100°
- Country
- United States
- Time zone
- America/Los_Angeles
Live & mission coverage
No verified official livestream has been announced. Check mission sources for coverage updates.
Sources
Source links and confidence are preserved with each mission. Official updates take priority when verified.
Launch Library 2high · P80
ll.thespacedevs.com · Updated Aug 27, 2026 16:03 UTCMission referencemedium · P60
spacenews.com · Updated Aug 27, 2026 16:03 UTCMission photographs are provided by the original sources. Their rights remain with their creators; consult the source before reusing an image.