PADSpace Launch Complex 4E
SITEVandenberg SFB, CA, USA →ORBITLow Earth Orbit
TYPECommunications
PROGRAMStarlink
MISSION OVERVIEW
A batch of 25 satellites for the Starlink mega-constellation – SpaceX’s project for space-based Internet communication system.
LAUNCH DETAILS
VEHICLE
Falcon 9AGENCY
SpaceXMISSION
Starlink Group 17-21
MISSION TYPE
Communications
TARGET ORBIT
Low Earth Orbit
LAUNCH PAD
Space Launch Complex 4ELAUNCH SITE
Vandenberg SFB, CA, USAPROGRAM
Starlink
COUNTRY
USA
LAUNCH TIME VERIFICATION
CONFIRMEDPrecision: Half-year
LAUNCH LIBRARY 2 PRIMARY
API ID: f6c9396f-5f02-49e6-a847-83e4c774e0e9
Reported date: Apr 11, 2026 at 05:04 UTC
Last synced: 12 hours ago
SPACEX API
Cross-referenced with community SpaceX data
X (TWITTER) SEARCH
IN FLIGHT reported by @planet4589
This launch date and time are confirmed by the launch provider. Countdown is active.
SCHEDULE & STATUS HISTORY
STATUS CHANGEApr 11, 2026 at 06:49 UTC
PARTIAL → SUCCESS
Source: Launch Library 2
STATUS CHANGEApr 11, 2026 at 05:11 UTC
GO → PARTIAL
Source: Launch Library 2
DELAYED(0.4 hrs)
Apr 11, 2026 at 03:53 UTCApr 11, 2026 04:40 → Apr 11, 2026 05:04 UTC
Source: Launch Library 2
DELAYED(0.7 hrs)
Apr 11, 2026 at 03:09 UTCApr 11, 2026 03:58 → Apr 11, 2026 04:40 UTC
Source: Launch Library 2
DELAYED(0.5 hrs)
Apr 11, 2026 at 02:53 UTCApr 11, 2026 03:27 → Apr 11, 2026 03:58 UTC
Source: Launch Library 2
DELAYED(0.3 hrs)
Apr 11, 2026 at 02:31 UTCApr 11, 2026 03:09 → Apr 11, 2026 03:27 UTC
Source: Launch Library 2
DELAYED(0.1 hrs)
Apr 11, 2026 at 01:06 UTCApr 11, 2026 03:01 → Apr 11, 2026 03:09 UTC
Source: Launch Library 2
DELAYED(0.4 hrs)
Apr 10, 2026 at 22:46 UTCApr 11, 2026 02:39 → Apr 11, 2026 03:01 UTC
Source: Launch Library 2
+ 3 earlier changes
LAUNCH MAP
PAD WEATHER
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BOOSTER — B1063 →
#32THIS FLIGHT
32TOTAL FLIGHTS
32/32LANDINGS
48dTURNAROUND
FLIGHT-PROVEN BOOSTER
ASDS — Of Course I Still Love You SUCCESS
First flight: Nov 21, 2020Previous flight: Feb 21, 2026
PAYLOAD →
Starlink v2 Mini
Broadband Internet
SpaceXOPERATOR
LEO · 530 kmORBIT
800 kgMASS
91TOTAL LAUNCHES
LIVE TRACKING AVAILABLE
VEHICLE — Falcon 9 →
MANUFACTURER
SpaceX
VARIANT
Block 5
FLIGHTS
576
SUCCESSES
575
SUCCESS RATE
99.8%
Falcon 9 is a two-stage rocket designed and manufactured by SpaceX for the reliable and safe transport of satellites and the Dragon spacecraft into orbit. The Block 5 variant is the fifth major interval aimed at improving upon the ability for rapid reusability.
MORE INFO
FREQUENTLY ASKED QUESTIONS
When is the Falcon 9 Block 5 | Starlink Group 17-21 launch?
The Falcon 9 Block 5 | Starlink Group 17-21 is scheduled for Saturday, April 11, 2026 at 5:04 AM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: SUCCESS.
What rocket is being used for Starlink Group 17-21?
The Falcon 9 Block 5 | Starlink Group 17-21 mission uses the Falcon 9 rocket, manufactured by SpaceX. The Falcon 9 has flown 576 times with a 99.8% success rate.
Where is the Falcon 9 Block 5 | Starlink Group 17-21 launching from?
The launch takes place from Space Launch Complex 4E at Vandenberg SFB, CA, USA.
What orbit is Starlink Group 17-21 going to?
The Starlink Group 17-21 mission is targeting Low Earth Orbit.
Who is launching Starlink Group 17-21?
The Falcon 9 Block 5 | Starlink Group 17-21 is operated by SpaceX. It is part of the Starlink program.
Can I watch the Falcon 9 Block 5 | Starlink Group 17-21 launch live?
Yes. Visit the launch detail page on Space Launch Live for embedded YouTube webcasts, replay videos, and links to live coverage from SpaceX, NASA, NASASpaceflight, and other channels.
LAUNCH TIMELINE
Apr 17, 2026 19:02 UTC
Launch completed successfully
Updated via Launch Library 2
Apr 11, 2026 06:49 UTC
Status changed: PARTIAL u2192 SUCCESS
Launch completed successfully (via Launch Library 2)
Apr 11, 2026 05:11 UTC
Status changed: GO u2192 PARTIAL
Launch partial success (via Launch Library 2)
Apr 11, 2026 03:53 UTC
Launch delayed by 0.4 hours
Apr 11, 2026 04:40 UTC u2192 Apr 11, 2026 05:04 UTC (via Launch Library 2)
Apr 11, 2026 03:09 UTC
Launch delayed by 0.7 hours
Apr 11, 2026 03:58 UTC u2192 Apr 11, 2026 04:40 UTC (via Launch Library 2)
Apr 11, 2026 02:53 UTC
Launch delayed by 0.5 hours
Apr 11, 2026 03:27 UTC u2192 Apr 11, 2026 03:58 UTC (via Launch Library 2)
Apr 11, 2026 02:31 UTC
Launch delayed by 0.3 hours
Apr 11, 2026 03:09 UTC u2192 Apr 11, 2026 03:27 UTC (via Launch Library 2)
Apr 11, 2026 01:06 UTC
Launch delayed by 0.1 hours
Apr 11, 2026 03:01 UTC u2192 Apr 11, 2026 03:09 UTC (via Launch Library 2)
Apr 10, 2026 22:46 UTC
Launch delayed by 0.4 hours
Apr 11, 2026 02:39 UTC u2192 Apr 11, 2026 03:01 UTC (via Launch Library 2)
Apr 6, 2026 17:33 UTC
Launch delayed by 24 hours
Apr 10, 2026 02:39 UTC u2192 Apr 11, 2026 02:39 UTC (via Launch Library 2)
Apr 2, 2026 20:47 UTC
Launch delayed by 24 hours
Apr 9, 2026 02:39 UTC u2192 Apr 10, 2026 02:39 UTC (via Launch Library 2)
Apr 1, 2026 18:18 UTC
Launch delayed by 2 days
Apr 7, 2026 02:39 UTC u2192 Apr 9, 2026 02:39 UTC (via Launch Library 2)
Mar 24, 2026 17:25 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 24, 2026 17:25 UTC
Launch date set: Apr 11, 2026 at 05:04 UTC
NET (No Earlier Than) confirmed by SpaceX
LIVE DATA SOURCES
Last data sync: 12 hours ago
IN FLIGHT reported by @planet4589 on X
●Launch Library 222 hours ago
Launch ID: f6c9396f-5f02-49e6-a847-83e4c774e0e9
●Open-Meteo Weather23 hours ago
Pad weather at 34.63, -120.61
●YouTube Video Search3 weeks ago
2 videos discovered
●X (Twitter) Search22 hours ago
10 tweets (1 from official accounts)
RECENT FROM X
2 months ago
LAUNCH at 0504 UTC Apr 11 of Starlink Group 17-21 from Vandenberg Space Force Base
36 ♥ 7 ↻
View on X →2 months ago
Starlink group 17-21 : VSFB SLC-4E : 10/11 April 2026 (03:58:40 UTC). The U.S. Space Force has approved the launch of a SpaceX Falcon 9 rocket carrying the Starlink 17-21 mission to low-Earth orbit, Friday, April 10, 2026, between 7:39 p.m. u2013 11:39 p.m. PT from Space Launch h
3 ♥ 1 ↻
View on X →2 months ago
UPDATE – NEW LAUNCH TIME – LAST BACKUP TIME:nStarlink group 17-21 : VSFB SLC-4E : 10/11 April 2026 (04:40:00 UTC).SpaceX's Falcon 9 rocket is targeted to launch 25 Starlink satellites to low-Earth orbit. Liftoff targeted for April 10 04:40:00 UTC.. 4/10/2026nnBackup Launch
1 ♥
View on X →2 months ago
UPDATE – NEW LAUNCH TIME – LAST BACKUP TIME:nStarlink group 17-21 : VSFB SLC-4E : 10/11 April 2026 (04:40:00 UTC).SpaceX's Falcon 9 rocket is targeted to launch 25 Starlink satellites to low-Earth orbit. Liftoff targeted for April 10 04:40:00 UTC.. 4/10/2026nnBackup Launch
1 ♥
View on X →2 months ago
ud83dudea8 Update on mission Falcon 9 Block 5 | Starlink Group 17-21nnCurrent status: Go for LaunchnnNow targeting Apr 11 at 04:40 UTCnhttps://t.co/SSgr4E9Du4
1 ♥
View on X →
