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All launches

SpaceX

Starlink Group 17-21

Success

Falcon 9 Block 5

T-minus to liftoff

HOURS

MINUTES

SECONDS

Saturday April 11 2026, 05:04:19 UTC

StatusSuccess

Scrub riskLOW

Go95%

VehicleFalcon 9 Block 5

OrbitLow Earth Orbit

PadSpace Launch Complex 4E

Launch CodexDossier

Every source for this mission in one place — news, social, references, notes & the exact timeline.

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General trajectory

Space Launch Complex 4E

Vandenberg SFB, CA, USA

Launching

South

197° · SSW

34.632, -120.611

Orbital elements (TLE)

Orbit

Apogee260 km

Perigee245 km

Period89.6 min

Inclination97.29°

Launch heading 197° · SSW from Starlink 17-21.

OrbitStarlink 17-21› conehigh

1 70063U 26077A 26101.25434028 .00000000 00000-0 00000-0 0 9996

2 70063 97.2909 331.4040 0011304 279.4020 096.3967 16.08034861 09

Pre-launch TLEs from Dillon's Space Page. Estimated before flight — the real orbit is confirmed post-launch.

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Mission

A batch of 25 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.

Reusable Hardware

All boosters →

First Stage · Flight-provenB1063

active32nd flight

Flights35

Landings35/35100%

Fastest turn28d 15h

Recovered · ASDS · OCISLY· 574 km downrange

48d 20h since last flight

Notable launches include Sentinel-6 and Dart.

Q's read

Weather & scrubLOW risk

Weather Go95%Wind2 m/sGusts3 m/sCloud66%Temp17°C

Limiting rule: Droneship recovery upper limit on sea state.

10.8 ≥ 8 ft significant wave height · max cloud-top 2597 m above freezing 3234 m (20% cover in 10 nmi) · no GLM flashes within 25 nmi / 30 min, likely cirrus / stratiform ice rather than cumulus

Launch Timeline

Countdown

T-00:38:00

GO for Prop Load

T-00:35:00

Stage 1 LOX Load

T-00:35:00

Prop Load

T-00:16:00

Stage 2 LOX Load

T-00:07:00

Engine Chill

T-00:01:00

Tank Press

T-00:01:00

Startup

T-00:00:45

GO for Launch

T-00:00:03

Ignition

In-flight

T+00:00:00

Liftoff

T+00:01:09

Max-Q

T+00:02:27

MECO

T+00:02:30

Stage 2 Separation

T+00:02:37

SES-1

T+00:02:56

Fairing Separation

T+00:06:08

Entry Burn Startup

T+00:06:27

Entry Burn Shutdown

T+00:07:55

Stage 1 Landing Burn

T+00:08:17

Stage 1 Landing

T+00:08:41

SECO-1

T+00:52:45

SES-2

T+00:52:46

SECO-2

T+00:52:46

Starlink Deployment

Quick facts

VehicleFalcon 9 Block 5

OrbitLow Earth Orbit

PadSpace Launch Complex 4E

SiteVandenberg SFB, CA, USA

WindowSaturday April 11 2026, 02:39:00 UTC→Saturday April 11 2026, 06:39:00 UTC

Vehicle

FamilyFalcon

Height70 m

Diameter3.7 m

Stages2

ReusableYes

LEO capacity22,800 kg

Track record612/613 successful

Landings598/603