| Scheduled for (UTC) | 2026-10-10, 07:39:44 |
|---|---|
| Scheduled for (local) | 2026-10-10, 00:39:44 (PDT) |
| Launch site | SLC-4E, Vandenberg SFB, California, USA |
| Booster | B1103-6 |
| Landing | LZ-4 |
| Payload | 21 satellites |
| Customer | Space Development Agency / USSF |
| Target orbit | Polar Orbit |
Webcasts
| Stream | Link |
|---|---|
| Space Affairs | https://www.youtube.com/watch?v=g2zSmp6e2Vs (scrub) |
| Spaceflight Now | https://www.youtube.com/watch?v=ntJhonUlUlc (scrub) |
| NASASpaceflight | none |
| The Launch Pad | https://www.youtube.com/watch?v=eXGemEHLuWQ |
| International Rocket Launches | https://www.youtube.com/watch?v=PR97PKHxpzs (scrub) |
| SpaceX | https://x.com/SpaceX/status/2108821569225310335 (scrub) |
| The Space Devs | https://www.youtube.com/watch?v=lrCq8bWuExs |
Stats
Sourced from NextSpaceflight and r/SpaceX:
☑️ 63rd launch from SLC-4E this year
☑️ 8 day turnaround for this pad
☑️ 59 day turnaround for B1103
☑️ 37th landing on LZ-4
☑️ 221st consecutive successful SpaceX launch (if successful)
☑️ 677th Falcon Family Booster landing, 686th Falcon recovery attempt
☑️ 111th Falcon 9 mission of 2026, 694th Falcon 9 mission overall
☑️ 117th SpaceX mission of 2026, 727th mission overall (excluding Starship hops)
☑️ 117th SpaceX launch of 2026, 737th SpaceX launch overall (including Starship hops)
Mission info
Tranche 1 Transport Layer A (T1TL-A)
Tranche 1 Transport Layer A 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.
You must log in or # to comment.
rykllan infographic: https://bsky.app/profile/rykllan.bsky.social/post/3mx3dnnvtnk2j
Upcoming launch of the SDA Tranche 1 Transport Layer A mission on #SpaceX’s #Falcon9 vehicle
Webcast is live. Operations engineer Annie Cui is hosting.
Weather is looking good, and Vandenberg is surprisingly fog-free.
Launch abort at T-58 seconds.
That will be a scrub for today.
Norminal launch, stage separation, and booster landing.
Fairing infographic by rykllan: https://bsky.app/profile/rykllan.bsky.social/post/3mxizu3wy7c22
https://x.com/SpaceX/status/2107282721898954854
Now targeting Thursday, October 8 for Falcon 9’s launch of the @SemperCitiusSDA’s fourth Tranche 1 data transport mission
Updated infographic by rykllan: https://bsky.app/profile/threelonmusketeers.bsky.social/lists/3liljwmn6e526
Upcoming launch of the SDA Tranche 1 Transport Layer A mission on #SpaceX’s #Falcon9 vehicle
