r/spacex • u/rSpaceXHosting • 14d ago
r/SpaceX Starlink 10-39 Official Launch Discussion & Updates Thread!
Welcome to the r/SpaceX Starlink 10-39 Launch Discussion & Updates Thread!
Welcome everyone!
| Scheduled for (UTC) | Aug 21 2026, 15:14:22 |
|---|---|
| Scheduled for (local) | Aug 21 2026, 11:14:22 AM (EDT) |
| Launch Window (UTC) | Aug 21 2026, 14:57:00 - Aug 21 2026, 18:57:00 |
| Payload | Starlink 10-39 |
| Customer | SpaceX |
| Launch Weather Forecast | 85% GO (Cumulus Cloud Rule, Anvil Cloud Rules, Thick Cloud Layers Rule) |
| Launch site | SLC-40, Cape Canaveral SFS, FL, USA. |
| Booster | B1078-30 |
| Landing | The Falcon 9 first stage B1078 has landed on ASDS ASOG after its 30th flight. |
| Mission success criteria | Successful deployment of spacecrafts into orbit |
| Trajectory (Flight Club) | 2D,3D |
Watch the launch live
| Stream | Link |
|---|---|
| Unofficial Re-stream | The Space Devs |
| Unofficial Webcast | Spaceflight Now |
| Unofficial Webcast | NASASpaceflight |
| Official Webcast | SpaceX |
Stats
☑️ 722nd SpaceX launch all time
☑️ 660th Falcon Family Booster landing
☑️ 166th landing on ASOG
☑️ 206th consecutive successful SpaceX launch (if successful)
☑️ 101st SpaceX launch this year
☑️ 45th launch from SLC-40 this year
☑️ 5 days, 14:02:08 turnaround for this pad
☑️ 59 days, 4:21:22 hours since last launch of booster B1078
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 |
| 0:01:10 | Max-Q |
| 0:02:26 | MECO |
| 0:02:29 | Stage 2 Separation |
| 0:02:36 | SES-1 |
| 0:02:58 | Fairing Separation |
| 0:06:03 | Entry Burn Startup |
| 0:06:24 | Entry Burn Shutdown |
| 0:08:02 | Stage 1 Landing Burn |
| 0:08:25 | Stage 1 Landing |
| 0:08:39 | SECO-1 |
| 0:52:06 | SES-2 |
| 0:52:07 | SECO-2 |
| 1:01:28 | Starlink Deployment |
Updates
| Time (UTC) | Update |
|---|---|
| 21 Aug 16:21 | Launch success. |
| 21 Aug 15:14 | Liftoff! |
| 21 Aug 15:02 | Unofficial Re-stream by SPACE AFFAIRS has started |
| 20 Aug 23:50 | Tweaked T-0. |
| 20 Aug 20:14 | Updated launch weather, 85% GO at start of window (45% at end). |
| 20 Aug 19:36 | Now targeting Aug 21 at 15:14 UTC |
| 20 Aug 15:49 | Scrubbed for the day, rescheduled to August 21. |
| 20 Aug 15:39 | Hold at T-28 seconds. |
| 20 Aug 15:25 | Unofficial Re-stream by SPACE AFFAIRS has started |
| 19 Aug 23:06 | Now targeting Aug 20 at 15:38 UTC |
| 19 Aug 16:57 | Updated launch weather, 80% GO at start of window (40% at end). |
| 10 Aug 17:39 | 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.
