Thor Delta C — mission imagery
Back to launches
Failure

OSO C

Thor Delta CUnited States Air ForceSpace Launch Complex 17B
Wednesday, August 25, 1965 · 03:17 PM UTC
Add to calendar

This mission is complete.

Mission Brief

OSO (Orbital Solar Observatory) satellite. Its purpose was to return data on the ultraviolet, X-ray and gamma ray emissions of the sun and galaxy.

PayloadOSO C
OrbitLow Earth Orbit
CustomerUnited States Air Force
StagesUnknown
PadSpace Launch Complex 17B, Cape Canaveral SFS, FL, USA

Mission Timeline

14 / 14100%

Ground vector

Launch site

Site locked

Space Launch Complex 17B

Cape Canaveral SFS, FL, USA

Global range
SITE LOCK
Latitude
28.446°N
Longitude
80.566°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

03:17 PM UTC - 03:17 PM UTC

Vehicle

Thor Delta C

Profile →
HeightN/A
LEO PayloadN/A
Launches1,078
Successes972

Provider

United States Air Force

Profile →

Schedule History

No meaningful launch-time or status changes recorded.

Related Launches

Falcon 9 Block 5 rocketManifest / 01
Go

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-
00
:
07
:
15
:
05
Confirmed to the minute
Long March 5 rocketManifest / 02
Go

Chang'e 7

Long March 5
ProviderChina Aerospace Science and Technology Corporation
Pad101
DateAug 24, 2026
PrecisionAbout 12:05 AM UTC
Schedule watchTracking updates
T– about 2d <1hWindow opens 12:00 AM UTC
Delta II 7925-9.5 rocketManifest / 03
Success

GPS IIR-16(M)

Delta II 7925-9.5
ProviderUnited States Air Force
PadSpace Launch Complex 17A
DateNov 17, 2006
Time (UTC)07:12 PM UTC
Success