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SpaceX

USSF-153

Success

Falcon 9 Block 5

T-minus to liftoff

HOURS

MINUTES

SECONDS

Thursday September 10 2026, 15:42:30 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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Orbital elements (TLE)

2 element sets

Orbit

Apogee265 km

Perigee256 km

Period89.7 min

Inclination70.02°

Launch heading 156° · SSE from USSF-153 PO.

Parking orbitUSSF-153 PO› conemedium

1 70189U 26206A 26253.66020833 .00000000 00000-0 00000-0 0 9997

2 70189 70.0179 300.7683 0081884 163.4441 351.8927 16.26456410 00

OrbitUSSF-153medium

1 70189U 26206A 26253.69226852 .00000000 00000-0 00000-0 0 9999

2 70189 70.0179 300.7636 0006920 342.9268 000.0000 16.05014307 04

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

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Mission

USSF-153 is a classified mission for the United States Space Force. It is possibly a batch of classified LEO satellites based on SpaceX’s Starshield satellite bus, based on locations of rocket stage drop zones being exact fits with previous Starlink Group 15 launches.

Reusable Hardware

All boosters →

First Stage · Flight-provenB1081

active27th flight

Flights28

Landings28/28100%

Fastest turn24d 19h

Recovered · ASDS · OCISLY· 574 km downrange

40d 12h since last flight

Launched Crew-7 on its first flight.

Previous flights · 26

Launch intel

Weather & scrubLOW risk

Weather Go95%LL2 Go70%Wind5 m/sGusts6 m/sCloud78%Temp16°C

Limiting rule: Droneship recovery upper limit on sea state.

8.4 ≥ 8 ft significant wave height

Hazards (5)All areas →Download pack

595/2026space debrisSep 4, 21:33Z – Sep 11, 00:55Z
NAVAREA XII 595/26. NORTH PACIFIC. JOHNSTON ATOLL. 1. HAZARDOUS OPERATIONS, SPACE DEBRIS 2133Z TO 2355Z DAILY 04 THRU 10 SEP IN AREA BOUND BY 27-28.71N 171-24.34W, 13-38.98N 174-00.45W, 01-35.98N 175-48.45W, 00-54.72N 172-43.89W, 12-22.59N 170-40.14W, 16-45.76N 170-06.75W, 26-43.75N 168-39.09W. 2. CANCEL THIS MSG 110055Z SEP 26.
Hazard card →
593/2026rocket launchAug 28, 15:40Z – Sep 10, 15:44Z
NAVAREA XII 593/26. NORTH PACIFIC. CALIFORNIA. 1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING: A. 041128Z TO 041553Z SEP, ALTERNATE 051113Z TO 051538Z, 061059Z TO 061524Z, 071045Z TO 071510Z, 081030Z TO 081455Z, 091016Z TO 091441Z AND 101001Z TO 101426Z 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. 041128Z TO 041611Z SEP, ALTERNATE 051113Z TO 051556Z, 061059Z TO 061542Z, 071045Z TO 071528Z, 081030Z TO 081513Z, 091016Z TO 091459Z AND 101001Z TO 101444Z SEP IN AREA 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 101544Z SEP 26. 281540Z AUG 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

Startup

T-00:01:00

Tank Press

T-00:00:45

GO for Launch

T-00:00:03

Ignition

In-flight

T+00:00:00

Liftoff

T+00:01:07

Max-Q

T+00:02:26

MECO

T+00:02:29

Stage 2 Separation

T+00:02:35

SES-1

T+00:02:55

Fairing Separation

T+00:06:06

Entry Burn Startup

T+00:06:30

Entry Burn Shutdown

T+00:08:04

Stage 1 Landing Burn

T+00:08:26

Stage 1 Landing

Quick facts

VehicleFalcon 9 Block 5

OrbitLow Earth Orbit

PadSpace Launch Complex 4E

SiteVandenberg SFB, CA, USA

WindowThursday September 10 2026, 15:37:00 UTC→Thursday September 10 2026, 18:37:00 UTC

Vehicle

FamilyFalcon

Height70 m

Diameter3.7 m

Stages2

ReusableYes

LEO capacity22,800 kg

Track record639/640 successful

Landings625/630