SDA Tranche 1 Transport Layer F launch time, date and countdown
TBD Q4 2026 (date TBD)
No launch date has been set yet (listed as Q4 2026). The countdown starts once a date is announced.
Launch details
- Target
- Q4 2026 (date TBD)
- Status
- TBD To Be Determined
- Provider
- SpaceX (Commercial)
- Rocket
- Falcon 9 Block 5
- Mission
- SDA Tranche 1 Transport Layer F
- Mission type
- Government/Top Secret
- Orbit
- Polar Orbit
- Pad
- Space Launch Complex 4E
- Location
- Vandenberg SFB, CA, USA
- Country code
- USA
Times can change. Central time is America/Chicago (CST/CDT). Source: Launch Library 2.
About this launch
SDA Tranche 1 Transport Layer F is a launch of the Falcon 9 Block 5 rocket operated by SpaceX. No launch date has been set yet. Launch Library 2 currently lists it as no earlier than Q4 2026, so the date and time shown on this page are placeholders until a real date is announced. The launch site is Space Launch Complex 4E, Vandenberg SFB, CA, USA. The target orbit is Polar Orbit. Mission type: Government/Top Secret. Launch Library 2 lists the current status as “To Be Determined”.
Mission description
Tranche 1 Transport Layer F 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 t...
How to watch
T-ZERO does not host or embed any video. Close to launch time, check the launch provider’s own website or social channels for a live stream. Launch times often move, so reload this page for the latest schedule.
Add to your calendar
Subscribe (.ics) to all upcoming launches. In your calendar app you can also add the URL webcal://t-0.space/calendar.ics as a subscribed calendar.