O3b mPower 11-13

Mission: O3b mPower 11-13

Communications · Medium Earth Orbit

3 high-throughput communications satellites in Medium Earth Orbit (MEO) built by Boeing and operated by SES.

Customers: SES

What it put in orbit

COSPAR ID 2026-208. Orbits from the CelesTrak satellite catalogue (perigee × apogee, inclination).

Where to watch

Timeline

1. T−00:38:00 GO for Prop Load
2. T−00:35:00 Prop Load
3. T−00:35:00 Stage 1 LOX Load
4. T−00:16:00 Stage 2 LOX Load
5. T−00:07:00 Engine Chill
6. T−00:01:00 Tank Press
7. T−00:01:00 Startup
8. T−00:00:45 GO for Launch
9. T−00:00:03 Ignition
10. T+00:00:00 Liftoff
11. T+00:01:12 Max-Q
12. T+00:02:27 MECO
13. T+00:02:31 Stage 2 Separation
14. T+00:02:37 SES-1
15. T+00:03:18 Fairing Separation
16. T+00:06:20 Entry Burn Startup
17. T+00:06:44 Entry Burn Shutdown
18. T+00:08:02 SECO-1
19. T+00:08:23 Stage 1 Landing Burn
20. T+00:08:46 Stage 1 Landing
21. T+00:29:51 SES-2
22. T+00:30:38 SECO-2
23. T+00:33:41 Payload Separation
24. T+00:40:41 Payload Separation
25. T+00:47:41 Payload Separation

Updates

• Launch success. source
• All spacecraft have separated. source
• Liftoff. source
• Unofficial Re-stream by SPACE AFFAIRS has started source
• Updated launch weather, 60% GO at start of window (40% at end). source
• GO for launch. source
• NET September 13, TBC. source
• NET September. source
• NET 2H 2026. source
• NET 2026, with 3 satellites on board. source
• NET late 2026. source
• Added launch for around Q2 2026. source