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Starlink Group 10-31

© SpaceX

All launches
SpaceX

Starlink Group 10-31

Success

Falcon 9 Block 5
T-minus to liftoff

-

00

HOURS

:

00

MINUTES

:

00

SECONDS

May 21, 10:04:20 UTC
StatusSuccess
VehicleFalcon 9 Block 5
OrbitLow Earth Orbit
PadSpace Launch Complex 40
Loading map…

Mission

A batch of 29 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

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+00:01:10

Max-Q

T+00:02:26

MECO

T+00:02:29

Stage 2 Separation

T+00:02:36

SES-1

T+00:02:58

Fairing Separation

T+00:06:02

Entry Burn Startup

T+00:06:24

Entry Burn Shutdown

T+00:07:57

Stage 1 Landing Burn

T+00:08:20

Stage 1 Landing

T+00:08:39

SECO-1

T+00:52:03

SES-2

T+00:52:04

SECO-2

T+01:01:24

Starlink Deployment

Quick facts

VehicleFalcon 9 Block 5
OrbitLow Earth Orbit
PadSpace Launch Complex 40
SiteCape Canaveral SFS, FL, USA
WindowMay 21, 09:26:00 UTC→May 21, 13:26:00 UTC

Vehicle

FamilyFalcon
Height70 m
Diameter3.65 m
Stages2
ReusableYes
LEO capacity22,800 kg
Track record606/607 successful
Landings593/598
Acquiring satellite view…
General trajectory
Space Launch Complex 40
Cape Canaveral SFS, FL, USA
Launching
Northeast
50° · NE
28.562, -80.577

Orbital elements (TLE)

Orbit
Apogee256 km
Perigee247 km
Period89.5 min
Inclination53.16°

Launch heading 50° · NE from Starlink 10-31.

OrbitStarlink 10-31› conehigh
1 70092U 26111A 26141.46250000 .00000000 00000-0 00000-0 0 9990
2 70092 53.1611 287.2354 0007089 292.3721 333.5179 16.08202262 00

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

Scrub riskLOW
Go90%
Q

Q's read

Weather & scrubLOW risk
Weather Go90%LL2 Go90%Wind4 ktGusts4 ktCloud50%Temp81°F

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

10000% cloud cover in layer above freezing (15432 ft) — approximated

Jellyfish potentialMap & details →

Vivid

Reusable Hardware

All boosters →
First Stage · Flight-provenB1077
active28th flight
Flights29
Landings29/29100%
Fastest turn26d 20h
Recovered · ASDS · ASOG· 600 km downrange
62d 19h since last flight

Falcon 9 Block 5 booster first used for the Crew-5 mission.

Previous flights · 28
  1. #29BlueBird Block 2 #3-5+26d 20hASOGJun 17, 2026
  2. #27Starlink Group 10-33+27d 12hJRTIMar 19, 2026
  3. #26Starlink Group 10-36+79d 3hJRTIFeb 20, 2026
  4. #25Starlink Group 6-95+37d 7hASOGDec 2, 2025
  5. #24Starlink Group 10-21+56d 3hASOGOct 26, 2025