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Starlink 15-25

· Falcon 9 · Vandenberg, California

T−12Days:02Hours:32Min:38Sec
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Starlink 15-25
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01

Mission

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

Falcon 9 will launch Starlink 15-25 from Space Launch Complex 4E (SLC-4E) at Vandenberg Space Force Base in California. This is the 20th flight for the first stage booster supporting this mission, B1088, which previously launched Starlink 15-24. Following stage separation, the first stage will land on the Of Course I Still Love You droneship, about 574 km downrange.

Liftoff
09:00 PDT at the pad
Window
– 4 h
Rocket
Falcon 9 Block 5 · SpaceX
Destination
Low Earth Orbit
Launch site
Space Launch Complex 4E, Vandenberg SFB, CA, USA
Latest update
Updated launch window.

1h1min

Mission duration

240min

Launch window

20th

Flight of B1088

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−00:01:00Tank Press
  7. T−00:01:00Startup
  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+00:08:00Stage 1 Landing Burn1st stage
  10. T+00:08:23Stage 1 Landing1st stage
  11. T+00:08:39SECO-12nd stage
  12. T+00:53:05SES-22nd stage
  13. T+00:53:06SECO-22nd stage
  14. T+01:01:57Starlink DeploymentPayload

04

Falcon 9 Block 5

SpaceX · Reusable

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.

634 flights, 633 successful, first flown May 2018

  • BoosterB1088 · 20th flight · previously Starlink Group 15-24 · Droneship Of Course I Still Love You (OCISLY)

70m

Height

3.7m

Diameter

549t

Mass at liftoff

23t

Payload to low Earth orbit

7,607kN

Thrust at liftoff

05

Launch site

Vandenberg, California

Space Launch Complex 4E

Coordinates
34.632° N · 120.611° W
Local time
06:27:21 PDT
This year
64th launch from this pad in 2026
Pad turnaround
5 days since the previous launch
Vandenberg

06

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