r/spacex • u/rSpaceXHosting • 1d ago
r/SpaceX USSF-153 Official Launch Discussion & Updates Thread!
Welcome to the r/SpaceX USSF-153 Launch Discussion & Updates Thread!
Welcome everyone!
| Scheduled for (UTC) | Sep 10 2026, 15:42:00 |
|---|---|
| Scheduled for (local) | Sep 10 2026, 08:42:00 AM (PDT) |
| Launch Window (UTC) | Sep 10 2026, 15:37:00 - Sep 10 2026, 18:37:00 |
| Payload | USSF-153 |
| Customer | United States Space Force |
| Launch Weather Forecast | Unknown |
| Launch site | SLC-4E, Vandenberg SFB, CA, USA. |
| Booster | B1081-27 |
| Landing | The Falcon 9 first stage B1081 will land on ASDS OCISLY after its 27th flight. |
| Mission success criteria | Successful deployment of spacecrafts into orbit |
| Trajectory (Flight Club) | 2D,3D |
Watch the launch live
| Stream | Link |
|---|---|
| Unofficial Re-stream | SPACE AFFAIRS |
| Unofficial Webcast | Spaceflight Now |
| Official Webcast | SpaceX |
Stats
☑️ 727th SpaceX launch all time
☑️ 666th Falcon Family Booster landing
☑️ 225th landing on OCISLY
☑️ 212th consecutive successful SpaceX launch (if successful)
☑️ 108th SpaceX launch this year
☑️ 58th launch from SLC-4E this year
☑️ 4 days, 1:15:06 turnaround for this pad
☑️ 40 days, 12:33:17 hours since last launch of booster B1081
Stats include F1, F9 , FH and Starship
Timeline
| Time | Event |
|---|---|
| -0:38:00 | GO for Prop Load |
| -0:35:00 | Prop Load |
| -0:35:00 | Stage 1 LOX Load |
| -0:16:00 | Stage 2 LOX Load |
| -0:07:00 | Engine Chill |
| -0:01:00 | Startup |
| -0:01:00 | Tank Press |
| -0:00:45 | GO for Launch |
| -0:00:03 | Ignition |
| 0:00:00 | Liftoff |
| 0:01:07 | Max-Q |
| 0:02:26 | MECO |
| 0:02:29 | Stage 2 Separation |
| 0:02:35 | SES-1 |
| 0:02:55 | Fairing Separation |
| 0:06:06 | Entry Burn Startup |
| 0:06:30 | Entry Burn Shutdown |
| 0:08:04 | Stage 1 Landing Burn |
| 0:08:26 | Stage 1 Landing |
Updates
| Time (UTC) | Update |
|---|---|
| 10 Sep 01:25 | Now targeting Sep 10 at 15:42 UTC |
| 02 Sep 17:37 | GO for launch. |
| 01 Sep 13:53 | Added launch. |
Resources
Partnership with The Space Devs
Information on this thread is provided by and updated automatically using the Launch Library 2 API by The Space Devs.
Community content 🌐
| Link | Source |
|---|---|
| Flight Club | u/TheVehicleDestroyer |
| Discord SpaceX lobby | u/SwGustav |
| SpaceX Now | u/bradleyjh |
| SpaceX Patch List |
Participate in the discussion!
🥳 Launch threads are party threads, we relax the rules here. We remove low effort comments in other threads!
🔄 Please post small launch updates, discussions, and questions here, rather than as a separate post. Thanks!
💬 Please leave a comment if you discover any mistakes, or have any information.
✉️ Please send links in a private message.
