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SDA Tranche 0A
All launches
SpaceX

SDA Tranche 0A

Success

Falcon 9 Block 5
T-minus to liftoff

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HOURS

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MINUTES

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SECONDS

Sunday April 2 2023, 14:29:00 UTC
StatusSuccess
VehicleFalcon 9 Block 5
OrbitPolar Orbit
PadSpace Launch Complex 4E
Loading map…

Mission

First mission launched by the Space Development Agency for the Tranche 0 Transport Layer.

Quick facts

VehicleFalcon 9 Block 5
OrbitPolar Orbit
PadSpace Launch Complex 4E
SiteVandenberg SFB, CA, USA
WindowSunday April 2 2023, 14:29:00 UTC→Sunday April 2 2023, 14:29:00 UTC

Vehicle

FamilyFalcon
Height70 m
Diameter3.7 m
Stages2
ReusableYes
LEO capacity22,800 kg
Track record606/607 successful
Landings593/598
Launch CodexDossier

Every source for this mission in one place — news, social, references, notes & the exact timeline.

Explore

Reusable Hardware

All boosters →
First Stage · Flight-provenB1075
active2nd flight
Flights22
Landings22/22100%
Fastest turn24d 17h
Recovered · RTLS · LZ-4· 0 km downrange
72d 22h since last flight

Falcon 9 Block 5 booster first used for the Starlink Group 2-4 mission. Converted to a Falcon Heavy booster in 2026 after 21 launches.

Previous flights · 21
  1. #22ViaSat-3 F3 (ViaSat-3 Asia-Pacific)+188d 23hLZ-40Apr 29, 2026
  2. #21Starlink Group 11-5+45d 20hOCISLYOct 22, 2025
  3. #20Starlink Group 17-9+41d 13hOCISLYSep 6, 2025
  4. #19Starlink Group 17-2+64d 5hOCISLYJul 27, 2025
  5. #18Starlink Group 11-16+110d 23hOCISLYMay 23, 2025
Acquiring satellite view…
Trajectory unknown
Space Launch Complex 4E
Vandenberg SFB, CA, USA
34.632, -120.611
Scrub riskLOW
Go92%
Q

Q's read

Weather & scrubLOW risk
Weather Go92%LL2 Go90%Wind2 m/sGusts2 m/sCloud3%Temp14°C

Limiting rule: Droneship recovery upper limit on sea state.

6.2 ≥ 6 ft significant wave height