Back to launches
Success

IMP 8

Delta 1604United States Air ForceSpace Launch Complex 17B
Friday, October 26, 1973 · 02:26 AM UTC
Add to calendar

This mission is complete.

Mission Brief

Earth-orbiting satellite designed to study interplanetary and outer magnetospheric regions.

PayloadIMP 8
OrbitElliptical 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

02:26 AM UTC - 02:26 AM UTC

Vehicle

Delta 1604

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

Long March 6C rocketManifest / 01
Go

Unknown Payload

Long March 6C
ProviderChina Aerospace Science and Technology Corporation
PadLaunch Complex 9A
DateAug 25, 2026
PrecisionAbout 03:20 AM UTC
Schedule watchTracking updates
T– about 1d 14hWindow opens 03:15 AM UTC
Falcon 9 Block 5 rocketManifest / 02
Go

Starlink Group 10-49

Falcon 9 Block 5
ProviderSpaceX
PadSpace Launch Complex 40
DateAug 25, 2026
Time (UTC)05:49 AM UTC
Launch clockT– to liftoff
T-
01
:
16
:
10
:
52
Confirmed to the minute
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