Success
Starlink Group 6-99
Communications
SpaceX(SpX)CommercialFalcon 9 Block 5
LEOorbit
A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Wednesday, December 17, 2025 at 1:42 PM
Replay
Flight Timeline
- T+01:12Max-Q
- T+02:24MECO
- T+02:27Stage 2 Separation
- T+02:35SES-1
- T+02:56Fairing Separation
- T+06:07Entry Burn Startup
- T+06:34Entry Burn Shutdown
- T+07:59Stage 1 Landing Burn
- T+08:23Stage 1 Landing
- T+08:38SECO-1
- T+53:49SES-2
- T+53:51SECO-2
- T+1:04:56Starlink Deployment
Links
Mission details
Orbital Attempt
#7,159
SpX Mission
#618
Pad Launch
#221
Location Launch
#279
Designator
2025-303
Weather GO
95%
Weather Concerns
Cumulus Cloud Rule
Launch Window
NET
Dec 17, 2025, 1:42 PM
Precision
Second
Schedule Changes
1 update
Lift Off
12:19 PM
Window Open
4:19 PM
Window Close
Falcon 9 Block 5 Specs
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.
Length
70 m
Diameter
3.65 m
Launch Mass
549 t
Thrust
7,607 kN
LEO Capacity
22,800 kg
GTO Capacity
8,300 kg
Launch Cost
$52M
Reusable
Yes
Maiden Flight
2018
Fastest Turnaround
1h 5m
Total Launches
586
Successful
585
Failed
1
Consecutive Success
288
Maiden flight: May 11, 2018
Social Flight Log
- Dec 17, 2025, 2:50 PM
Launch success.
Source - Dec 17, 2025, 1:42 PM
Unofficial Re-stream by SPACE AFFAIRS has started
Source - Dec 17, 2025, 1:42 PM
Liftoff.
Source - Dec 17, 2025, 1:32 PM
Unofficial Re-stream by SPACE AFFAIRS has started
Source - Dec 17, 2025, 12:25 AM
Now targeting Dec 17 at 13:42 UTC
Source - Dec 15, 2025, 4:27 PM
Now targeting Dec 17 at 12:19 UTC
Source - Dec 15, 2025, 3:24 AM
Confirmed rescheduled for December 16.
Source - Dec 15, 2025, 1:00 AM
Delayed to December 16, to be officially confirmed.
Source - Dec 13, 2025, 10:42 PM
Updated launch weather, 40% GO at start of window (80% at end).
Source - Dec 9, 2025, 9:47 PM
Now targeting Dec 15 at 13:11 UTC
Source - Dec 5, 2025, 6:54 PM
Added launch.
Source
SpaceX
Space Exploration Technologies Corp., known as SpaceX, is an American aerospace manufacturer and space transport services company headquartered in Hawthorne, California. It was founded in 2002 by entrepreneur Elon Musk with the goal of reducing space transportation costs and enabling the colonization of Mars. SpaceX operates from many pads, on the East Coast of the US they operate from SLC-40 at Cape Canaveral Space Force Station and historic LC-39A at Kennedy Space Center. They also operate from SLC-4E at Vandenberg Space Force Base, California, usually for polar launches. Another launch site is being developed at Boca Chica, Texas.
Founded
2002
Administrator
CEO: Elon Musk
Total Launches
681
Successful
666
Failed
15
Pending
120
Consecutive Success
166
Kennedy Space Center, FL, USA
The John F. Kennedy Space Center, located on Merritt Island, Florida, is one of NASA's ten field centers. Since 1968, KSC has been NASA's primary launch center of American spaceflight, research, and technology. Launch operations for the Apollo, Skylab and Space Shuttle programs were carried out from Kennedy Space Center Launch Complex 39 and managed by KSC. Located on the east coast of Florida, KSC is adjacent to Cape Canaveral Space Force Station (CCSFS).
Timezone
America/New_York
Local Launch Time
Dec 17, 2025, 8:42 AM
Total Launches
281
Total Landings
0
Coordinates
28.5242, -80.6508