Manifest / 01Go
Starlink Group 15-20
Falcon 9 Block 5
ProviderSpaceX
PadSpace Launch Complex 4E
DateAug 22, 2026
Time (UTC)07:25 AM UTC
Launch clockT– to liftoff
T-:::
Confirmed to the minute00
11
28
02
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Success
Transit-O 4
Thor DM-21 AblestarUnited States Air ForceSpace Launch Complex 2E
Thursday, June 24, 1965 · 10:35 PM UTC
This mission is complete.
Mission Brief
The Transit-O series of satellites that closely followed the design of Transit 5C-1 were also called “Oscars” (Oscar is the phonetic alphabet for “O”, i. e., operational). They were also called NNS (Navy Navigation Satellite) or shortened NavSat.
PayloadTransit-O 4
OrbitPolar Orbit
CustomerUnited States Air Force
StagesUnknown
PadSpace Launch Complex 2E, Vandenberg SFB, CA, USA
Mission Timeline
14 / 14100%Ground vector
Launch site
Site locked
Space Launch Complex 2E
Vandenberg SFB, CA, USA
Global range
- Latitude
- 34.752°N
- Longitude
- 120.619°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
10:35 PM UTC - 10:35 PM UTC
Schedule History
No meaningful launch-time or status changes recorded.
