Falcon 9 Block 5 — mission imagery
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SDA Tranche 1 Tracking Layer C

Falcon 9 Block 5SpaceXSpace Launch Complex 4E
Tuesday, June 30, 2026 · 12:00 AM UTCAdd to Calendar

NextGo for Prop LoadT-35:00

Time to launch

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DAYS
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HRS
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MIN
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SEC
Launch Window Confidence
46% — Uncertain

Vehicle

Falcon 9 Block 5

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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 fif...

Height70 m
LEO Payload22,800 kg
Launches801
Successes664

Provider

USA • Founded 2002

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 E...

Mission Brief

Tranche 1 Tracking Layer C 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.

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

Mission Timeline

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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
  • Stage 2 LOX Loading BeginsT-16:00
  • Engine Chill BeginsT-07:00
  • Flight Computer Final ChecksT-01:00
  • Tanks Pressurize for FlightT-01:00
  • Strongback Retract BeginsT-00:45
  • Engine Ignition Sequence StartsT-00:03
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Launch Site

Space Launch Complex 4E, Vandenberg SFB, CA, USA

LAUNCH SITE
34.632°N, 120.611°W

Schedule History

No delays or schedule changes recorded.