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SpaceX

Starlink Group 12-20

Success

Falcon 9 Block 5

T-minus to liftoff

HOURS

MINUTES

SECONDS

Monday March 3 2025, 02:24:00 UTC

StatusSuccess

Scrub riskHIGH

Go12%

VehicleFalcon 9 Block 5

OrbitLow Earth Orbit

PadSpace Launch Complex 40

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 40

Cape Canaveral SFS, FL, USA

Launching

Southwest

225° · SW

28.562, -80.577

Orbital elements (TLE)

Orbit

Apogee261 km

Perigee246 km

Period89.6 min

Inclination97.29°

Launch heading 225° · SW from Starlink 17-20.

OrbitStarlink 17-20› conelow

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

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

Reusable Hardware

All boosters →

First Stage · Flight-provenB1086

lost5th flight

Flights5

Landings5/5100%

Fastest turn26d 3h

Recovered · ASDS · JRTI· 600 km downrange

26d 3h since last flight

Falcon 9 booster that started out as a Falcon Heavy side booster flown during the GOES-U mission. Written off on 3 March 2025 after safely landing aboard JRTI due to post-landing aft end fire damaging one of the landing legs and tipping it overboard.

Previous flights · 4

Q's read

Weather & scrubHIGH risk

Weather Go12%LL2 Go90%Wind2 m/sGusts4 m/sCloud33%Temp25°C

Limiting rule: No flight through a thick (>4500 ft) cloud layer extending across the freezing level.

max-top 6377 m, mean 4946 m, 81% cover, freezing 4523 m · max cloud-top 6377 m above freezing 4523 m (81% 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

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+00:01:11

Max-Q

T+00:02:25

MECO

T+00:02:28

Stage 2 Separation

T+00:02:36

SES-1

T+00:03:05

Fairing Separation

T+00:06:00

Entry Burn Startup

T+00:06:26

Entry Burn Shutdown

T+00:07:47

Stage 1 Landing Burn

T+00:08:13

Stage 1 Landing

T+00:08:39

SECO-1

T+00:53:58

SES-2

T+00:54:00

SECO-2

T+01:05:07

Starlink Deployment

Quick facts

VehicleFalcon 9 Block 5

OrbitLow Earth Orbit

PadSpace Launch Complex 40

SiteCape Canaveral SFS, FL, USA

WindowMonday March 3 2025, 02:24:00 UTC→Monday March 3 2025, 05:21:20 UTC

Vehicle

FamilyFalcon

Height70 m

Diameter3.7 m

Stages2

ReusableYes

LEO capacity22,800 kg

Track record606/607 successful

Landings593/598