Falcon 9 Block 5 — mission imagery
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TBD

SDA Tranche 1 Transport Layer F

Falcon 9 Block 5SpaceXSpace Launch Complex 4E
Q3 2026 · Date and time TBD
Calendar available when time is confirmed

NextGo for Prop LoadT-35:00

Time to launch

Schedule watchTracking updates
Q3 2026Exact time confirmed closer to launch
Launch Window Confidence
46% — Uncertain

Mission Brief

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 tolerance.

PayloadSDA Tranche 1 Transport Layer F
OrbitPolar Orbit
CustomerSpaceX
Stages2
PadSpace Launch Complex 4E, Vandenberg SFB, CA, USA

Mission Timeline

0 / 200%
Up next · Countdown

Go for Prop Load

Launch director gives the go to begin fueling

T-35:00
11:25 PM UTC
  • Go for Prop LoadT-35:00
  • RP-1 Loading BeginsT-35:00
  • Stage 1 LOX Loading BeginsT-35:00

Ground vector

Launch site

Site locked

Space Launch Complex 4E

Vandenberg SFB, CA, USA

Global range
SITE LOCK
Latitude
34.632°N
Longitude
120.611°W

Range Weather

Launch commit criteria

Clear
Watch
TrackingNo active constraints
Weather Rules

Tracking no weather issues at this time.

Primary concern
No weather issues
Rule count
0
Temperature
Not reported
Surface wind
Not reported
Window

12:00 AM UTC - 12:00 AM UTC

Vehicle

Falcon 9 Block 5

Profile →
Height70 m
LEO Payload22,800 kg
Launches850
Successes706

Provider

USA • Founded 2002

Schedule History

Only meaningful launch-time and status changes are shown.

1
Jun 3012:00 AM
Sep 3012:00 AM

Schedule updated