Manifest / 01In Flight
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
39
17
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Success
Navstar 4
Atlas F/SVSUnited States Air ForceSpace Launch Complex 3E
Monday, December 11, 1978 · 03:59 AM UTC
This mission is complete.
Mission Brief
First generation GPS satellite
PayloadNavstar 4
OrbitMedium Earth Orbit
CustomerGlobal Positioning System
Stages2
PadSpace Launch Complex 3E, Vandenberg SFB, CA, USA
Mission Timeline
14 / 14100%Ground vector
Launch site
Site locked
Space Launch Complex 3E
Vandenberg SFB, CA, USA
Global range
- Latitude
- 34.640°N
- Longitude
- 120.590°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
03:59 AM UTC - 03:59 AM UTC
Schedule History
No meaningful launch-time or status changes recorded.
