LaunchLAUNCH SUCCESSFULLive

Starlink 15-27

· Falcon 9 · Vandenberg, California

Watch replay

01

Mission

A batch of 27 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.

Falcon 9 launched Starlink 15-27 from Space Launch Complex 4E (SLC-4E) at Vandenberg Space Force Base in California. This was the 17th flight for the first stage booster supporting this mission, B1093, which previously launched Starlink 17-38. After stage separation, the first stage landed on the Of Course I Still Love You droneship.

Launched
18:47 PDT at the pad
Rocket
Falcon 9 Block 5 · SpaceX
Destination
Low Earth Orbit
Launch site
Space Launch Complex 4E, Vandenberg, California 60th launch from this pad in 2026, 3 days after the previous
Latest update
Launch success.

1h1min

Mission duration

240min

Launch window

17th

Flight of B1093

574km

Downrange landing, OCISLY

02

Countdown

All times approximate · shown in your time zone, CEST · Timeline: The Space Devs

  1. T−00:38:00GO for Prop Load
  2. T−00:35:00Stage 1 LOX Load1st stage
  3. T−00:35:00Prop Load
  4. T−00:16:00Stage 2 LOX Load2nd stage
  5. T−00:07:00Engine Chill
  6. T−00:01:00Startup
  7. T−00:01:00Tank Press
  8. T−00:00:45GO for Launch
  9. T−00:00:03Ignition

03

Flight

All times approximate · shown in your time zone, CEST · Timeline: The Space Devs

  1. T+00:00:00Liftoff
  2. T+00:01:08Max-Q
  3. T+00:02:26MECO
  4. T+00:02:29Stage 2 Separation
  5. T+00:02:36SES-12nd stage
  6. T+00:02:58Fairing Separation2nd stage
  7. T+00:06:01Entry Burn Startup2nd stage
  8. T+00:06:24Entry Burn Shutdown2nd stage
  9. T+00:08:01Stage 1 Landing Burn1st stage
  10. T+00:08:23Stage 1 Landing1st stage
  11. T+00:08:39SECO-12nd stage
  12. T+00:53:03SES-22nd stage
  13. T+00:53:04SECO-22nd stage
  14. T+01:01:55Starlink DeploymentPayload

04

Falcon 9 Block 5

SpaceX · Reusable · 634 flights, 633 successful, first flown May 2018

  • BoosterB1093 · 17th flight · previously Starlink Group 17-38 · Droneship Of Course I Still Love You (OCISLY), landed
About Falcon 9 Block 5

Falcon 9 is a two-stage rocket designed and manufactured by SpaceX for the reliable and safe transport of satellites and the Dragon spacecraft into orbit. The Block 5 variant is the fifth major interval aimed at improving upon the ability for rapid reusability.

70m

Height

3.7m

Diameter

549t

Mass at liftoff

23t

Payload to low Earth orbit

7,607kN

Thrust at liftoff

05

Up next