Manifest / 01Go
Starlink Group 10-39
Falcon 9 Block 5
ProviderSpaceX
PadSpace Launch Complex 40
DateAug 21, 2026
Time (UTC)03:14 PM UTC
Launch clockT– to liftoff
T-:::
Confirmed to the minute00
00
38
50
Back to launches
TBD
Laser Interferometer Space Antenna (LISA)
Ariane 64ArianespaceAriane Launch Area 4
2035 · Date and time TBD
Calendar available when time is confirmed
NextVulcain 2.1 IgnitionT-00:07
Time to launch
Launch Window Confidence
46% — UncertainMission Brief
Heliocentric constellation of three laser-equipped spacecraft forming an equilateral triangle with a side distance of 2.5 million km. Its goal is to detect and study gravitational waves.
PayloadLaser Interferometer Space Antenna (LISA)
OrbitHeliocentric N/A
CustomerArianespace
Stages2
PadAriane Launch Area 4, Guiana Space Centre, French Guiana
Mission Timeline
0 / 90%Up next · Countdown
Vulcain 2.1 Ignition
Main-stage Vulcain 2.1 engine ignition before liftoff
T-00:07
11:59 PM UTC
- Vulcain 2.1 IgnitionT-00:0711:59 PM UTC
Ground vector
Launch site
Site locked
Ariane Launch Area 4
Guiana Space Centre, French Guiana
Global range
- Latitude
- 5.256°N
- Longitude
- 52.787°W
Range Weather
Launch commit criteria
Clear
Watch
TrackingNo active constraints
Weather Rules
Tracking no weather issues at this time.
- Primary concern
- No weather issues
- Rule count
- 0
- Temperature
- Not reported
- Surface wind
- Not reported
Window
12:00 AM UTC - 12:00 AM UTC
Provider
Arianespace
Profile →FRA • Founded 1980
Arianespace SA is a multinational company founded in 1980 as the world's first commercial launch service provider. It undertakes the production, operation, and marketing of the Ariane programme. Their vehicles...
Schedule History
No meaningful launch-time or status changes recorded.
