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SpaceX

Starlink Group 15-23

Success

Falcon 9 Block 5

T-minus to liftoff

HOURS

MINUTES

SECONDS

Wednesday September 2 2026, 08:42:12 UTC

StatusSuccess

Scrub riskLOW

Go95%

VehicleFalcon 9 Block 5

OrbitLow Earth Orbit

PadSpace Launch Complex 4E

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

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General trajectory

5 hazard areas

Space Launch Complex 4E

Vandenberg SFB, CA, USA

Booster recovery

ASDS droneship· 593 km

Fairing recovery vessel· 644 km

Launching

South

163° · SSE

34.632, -120.611

Orbital elements (TLE)

Orbit

Apogee265 km

Perigee251 km

Period89.7 min

Inclination70.01°

Launch heading 163° · SSE from Starlink 15-23.

OrbitStarlink 15-23› conehigh

1 70183U 26200A 26245.40578704 .00000000 00000-0 00000-0 0 9993

2 70183 70.0081 187.5107 0010256 275.6620 098.4982 16.05884475 06

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

Reusable Hardware

All boosters →

First Stage · Flight-provenB1063

active35th flight

Flights35

Landings35/35100%

Fastest turn28d 15h

Recovered · ASDS · OCISLY· 574 km downrange

28d 15h since last flight

Notable launches include Sentinel-6 and Dart.

Q's read

Weather & scrubLOW risk

Weather Go95%Wind11 m/sGusts13 m/sCloud46%Temp14°C

Limiting rule: Droneship recovery upper limit on sea state.

9.7 ≥ 8 ft significant wave height

Hazards (2)

NAVAREA XII 563/26. NORTH PACIFIC. CALIFORNIA. 1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING: A. 250942Z TO 251405Z AUG, ALTERNATE 260927Z TO 261350Z, 270913Z TO 271336Z, 280858Z TO 281321Z, 290844Z TO 291307Z, 300830Z TO 301253Z AND 310815Z TO 311238Z AUG IN AREA BOUND BY 34-28.00N 120-21.00W, 34-40.00N 120-37.00W, 34-39.00N 120-39.00W, 34-34.00N 120-39.00W, 34-19.00N 120-34.00W, 33-04.00N 119-51.00W, 32-20.00N 119-20.00W, 32-21.00N 119-18.00W, 33-03.00N 119-37.00W. B. 250942Z TO 251407Z AUG, ALTERNATE 260927Z TO 261352Z, 270913Z TO 271338Z, 280858Z TO 281323Z, 290844Z TO 291309Z, 300830Z TO 301255Z AND 310815Z TO 311240Z AUG IN AREA BOUND BY 29-48.00N 117-39.00W, 31-20.00N 118-49.00W, 31-19.00N 118-50.00W, 30-36.00N 118-39.00W, 29-54.00N 118-22.00W, 29-24.00N 118-08.00W. C. 250942Z TO 251425Z AUG, ALTERNATE 260927Z TO 261410Z, 270913Z TO 271356Z, 280858Z TO 281341Z, 290844Z TO 291327Z, 300830Z TO 301313Z AND 310815Z TO 311258Z AUG IN AREA BOUND BY 29-48.00N 117-39.00W, 29-24.00N 118-08.00W, 29-15.00N 118-02.00W, 29-02.00N 117-59.00W, 28-13.00N 117-21.00W, 29-36.00N 117-16.00W. 2. CANCEL THIS MSG 311358Z AUG 26.
NAVAREA XII 587/26. NORTH PACIFIC. CALIFORNIA. 1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING: A. 010801ZTO 011226Z SEP, ALTERNATE 020746Z TO 021211Z, 030732Z TO 031157Z, 040718Z TO 041143Z, 050703Z TO 051128Z, 060649Z TO 061114Z AND 070634Z TO 071059Z SEP IN AREA BOUND BY 29-48.00N 117-39.00W, 34-28.00N 120-18.00W, 34-40.00N 120-36.00W, 34-39.00N 120-39.00W, 34-30.00N 120-39.00W, 29-35.00N 118-12.00W, 29-52.00N 117-54.00W. B. 010801Z TO 011244Z SEP, ALTERNATE 020746Z TO 021229Z, 030732Z TO 031215Z, 040718Z TO 041201Z, 050703Z TO 051146Z, 060649Z TO 061132Z AND 070634Z TO 071117Z SEP IN AREAS BOUND BY 29-48.00N 117-39.00W, 29-52.00N 117-54.00W, 29-35.00N 118-12.00W, 29-24.00N 118-08.00W, 29-15.00N 118-02.00W, 29-02.00N 117-59.00W, 28-12.00N 117-19.00W, 28-50.00N 117-19.00W, 29-36.00N 117-16.00W. 2. CANCEL THIS MSG 071217Z SEP 26.

Launch Timeline

Countdown

T-00:38:00

GO for Prop Load

T-00:35:00

Prop Load

T-00:35:00

Stage 1 LOX 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+00:01:08

Max-Q

T+00:02:25

MECO

T+00:02:29

Stage 2 Separation

T+00:02:36

SES-1

T+00:02:57

Fairing Separation

T+00:06:01

Entry Burn Startup

T+00:06:25

Entry Burn Shutdown

T+00:08:01

Stage 1 Landing Burn

T+00:08:24

Stage 1 Landing

T+00:08:38

SECO-1

T+00:53:12

SES-2

T+00:53:13

SECO-2

T+01:02:04

Starlink Deployment

Quick facts

VehicleFalcon 9 Block 5

OrbitLow Earth Orbit

PadSpace Launch Complex 4E

SiteVandenberg SFB, CA, USA

WindowWednesday September 2 2026, 07:46:00 UTC→Wednesday September 2 2026, 11:46:00 UTC

Vehicle

FamilyFalcon

Height70 m

Diameter3.7 m

Stages2

ReusableYes

LEO capacity22,800 kg

Track record630/631 successful

Landings616/621