SpaceX

Starlink Group 12-21

Success

Falcon 9 Block 5

T-minus to liftoff

-

00

HOURS

:

00

MINUTES

:

00

SECONDS

Thursday March 13 2025, 02:35:30 UTC

StatusSuccess

VehicleFalcon 9 Block 5

OrbitLow Earth Orbit

PadSpace Launch Complex 40

Loading map…

Mission

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

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

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+00:01:13

Max-Q

T+00:02:27

MECO

T+00:02:31

Stage 2 Separation

T+00:02:38

SES-1

T+00:03:00

Fairing Separation

T+00:06:20

Entry Burn Startup

T+00:06:42

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+00:53:58

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

WindowThursday March 13 2025, 02:20:00 UTC→Thursday March 13 2025, 06:51:00 UTC

Vehicle

FamilyFalcon

Height70 m

Diameter3.7 m

Stages2

ReusableYes

LEO capacity22,800 kg

Track record606/607 successful

Landings593/598

All launches

SpaceX

Starlink Group 12-21

Success

Falcon 9 Block 5

T-minus to liftoff

-

00

HOURS

:

00

MINUTES

:

00

SECONDS

Thursday March 13 2025, 02:35:30 UTC

StatusSuccess

Scrub riskHIGH

Go40%

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.

Explore

Acquiring satellite view…

Trajectory unknown

Space Launch Complex 40

Cape Canaveral SFS, FL, USA

28.562, -80.577

Loading map…

Mission

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

Q's read

Weather & scrubHIGH risk

Weather Go40%LL2 Go99%Wind2 m/sGusts5 m/sCloud38%Temp26°C

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

100% cloud cover in layer above freezing (14805 ft) — approximated · ≥60% layer 13422–17835 ft (4413 ft thick) — approximated · METAR reports DISTANT lightning (beyond 10 SM, outside the LCC radius): "KCOF 270355Z AUTO 15005KT 10SM DZ FEW170 25/23 A3000 RMK AO2 LTG DSNT W-NW DZE02"

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

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+00:01:13

Max-Q

T+00:02:27

MECO

T+00:02:31

Stage 2 Separation

T+00:02:38

SES-1

T+00:03:00

Fairing Separation

T+00:06:20

Entry Burn Startup

T+00:06:42

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+00:53:58

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

WindowThursday March 13 2025, 02:20:00 UTC→Thursday March 13 2025, 06:51:00 UTC

Vehicle

FamilyFalcon

Height70 m

Diameter3.7 m

Stages2

ReusableYes

LEO capacity22,800 kg

Track record606/607 successful

Landings593/598

Launch CodexDossier

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

Explore

Acquiring satellite view…

Trajectory unknown

Space Launch Complex 40

Cape Canaveral SFS, FL, USA

28.562, -80.577

Scrub riskHIGH

Go40%

Q's read

Weather & scrubHIGH risk

Weather Go40%LL2 Go99%Wind2 m/sGusts5 m/sCloud38%Temp26°C

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

100% cloud cover in layer above freezing (14805 ft) — approximated · ≥60% layer 13422–17835 ft (4413 ft thick) — approximated · METAR reports DISTANT lightning (beyond 10 SM, outside the LCC radius): "KCOF 270355Z AUTO 15005KT 10SM DZ FEW170 25/23 A3000 RMK AO2 LTG DSNT W-NW DZE02"