Liftoff Videos

Every mission, with the videos that tell it

Tranche 1 Transport Layer C

October 14, 2025Low Earth orbit

Everyday Astronaut hosts a live watch-along of SpaceX's Falcon 9 launch of 21 Lockheed Martin satellites for the Space Development Agency's Tranche 1 Transport Layer from Vandenberg, with the official SpaceX webcast and viewer Q&A.

Key moments

  1. Sneak peek of the Vandenberg range video on flight termination systems

    Watch this moment · 7:30

  2. SpaceX webcast begins; 21 satellites and Tranche 1 explained

    Watch this moment · 27:51

  3. Liftoff of Falcon 9 from SLC-4E

    Watch this moment · 36:10

  4. Stage separation and second engine start

    Watch this moment · 38:51

  5. Fairing separation confirmed

    Watch this moment · 39:35

  6. Booster entry burn

    Watch this moment · 42:48

  7. Booster landing confirmed on the droneship

    Watch this moment · 44:58

  8. Post-launch Q&A on Starship, Space Force and more

    Watch this moment · 46:20
Play video: Tranche 1 Transport Layer C: Falcon 9 Lofts 21 Satellites, 1:30:52 Source: Everyday Astronaut

Key facts
VehicleFalcon 9
Mission nameTranche 1 Transport Layer C
Launch siteSpace Launch Complex 4 East (SLC-4E), Vandenberg Space Force Base, California
Crew size0

Videos about this mission

The videos, in date order

Drag, zoom or press play to watch them on this page.

  1. Tranche 1 Transport Layer C: Falcon 9 Lofts 21 Satellites

    Everyday Astronaut
Play video: Tranche 1 Transport Layer C: Falcon 9 Lofts 21 Satellites

Tranche 1 Transport Layer C: Falcon 9 Lofts 21 Satellites

Everyday Astronaut

Duration 1:30:52

Watch video

Dates are when each video was first published on YouTube.

Sources: The facts and written text on this page come from the 1 video on this page, by Everyday Astronaut.

Related missions

Same vehicle: Falcon 9

Same destination: Low Earth orbit

Same year: 2025