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SpaceX

Starlink Group 17-5

Success

Falcon 9 Block 5

T-minus to liftoff

HOURS

MINUTES

SECONDS

Monday August 18 2025, 16:26:49 UTC

StatusSuccess

Scrub riskHIGH

Go40%

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)

4 element sets

Orbit

Apogee262 km

Perigee246 km

Period89.6 min

Inclination97.29°

Launch heading 197° · SSW from Starlink 17-30.

OrbitStarlink 17-20low

1 70012U 26016A 26025.77269676 .00033015 00000-0 41372-4 0 9993

2 70012 97.2906 083.6243 0011020 270.6608 105.6107 16.07501555 09

OrbitStarlink 17-30› conelow

1 70010U 26014A 26022.15890046 .00019681 00000-0 24737-4 0 9998

2 70010 97.2886 219.0247 0011767 278.0041 099.2576 16.07439173 08

OrbitStarlink 17-32low

1 70017U 26022A 26033.70087963 .00000000 00000-0 00000-0 0 9991

2 70017 97.2910 065.5700 0011972 279.6700 096.0399 16.07517952 08

OrbitStarlink 17-33high

1 70018U 26999A 26038.91695602 .00000000 00000-0 00000-0 0 9998

2 70018 97.2910 148.4987 0011972 279.6700 096.0399 16.07517952 07

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

Reusable Hardware

All boosters →

First Stage · Flight-provenB1088

active9th flight

Flights18

Landings18/18100%

Fastest turn9d 3h

Recovered · ASDS · OCISLY· 574 km downrange

50d 23h since last flight

Falcon 9 booster.

Previous flights · 18

Q's read

Weather & scrubHIGH risk

Weather Go40%Wind9 m/sGusts11 m/sCloud78%Temp19°C

Limiting rule: No flight through cumulus cloud with top at or above the freezing level.

88% cloud cover in layer above freezing (15134 ft) — approximated · ≥60% layer 13634–18009 ft (4375 ft thick) — approximated · 7.9 ≥ 6 ft significant wave height

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+00:01:12

Max-Q

T+00:02:26

MECO

T+00:02:29

Stage 2 Separation

T+00:02:36

SES-1

T+00:02:55

Fairing Separation

T+00:06:08

Entry Burn Startup

T+00:06:31

Entry Burn Shutdown

T+00:08:01

Stage 1 Landing Burn

T+00:08:25

Stage 1 Landing

T+00:08:40

SECO-1

T+00:53:36

SES-2

T+00:53:37

SECO-2

T+01:02:28

Starlink Deployment

Quick facts

VehicleFalcon 9 Block 5

OrbitLow Earth Orbit

PadSpace Launch Complex 4E

SiteVandenberg SFB, CA, USA

WindowMonday August 18 2025, 15:44:00 UTC→Monday August 18 2025, 19:44:00 UTC

Vehicle

FamilyFalcon

Height70 m

Diameter3.7 m

Stages2

ReusableYes

LEO capacity22,800 kg

Track record606/607 successful

Landings593/598