UNITED STATES AIR FORCE

Delta 1604 | IMP 7

SUCCESSSep 23, 1972 at 01:20 UTCDelta 1604 →
PADSpace Launch Complex 17B
SITECape Canaveral SFS, FL, USA →
ORBITElliptical Orbit
TYPEAstrophysics

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

VEHICLE
Delta 1604
MISSION
IMP 7
MISSION TYPE
Astrophysics
TARGET ORBIT
Elliptical Orbit
COUNTRY
USA
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: 5d00af1c-5334-4b3f-aeb7-a61d42eac5f9
Reported date: Sep 23, 1972 at 01:20 UTC
Last synced: 2 hours ago
This launch date and time are confirmed by the launch provider. Countdown is active.
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MANUFACTURER
McDonnell Douglas
VARIANT
1604
FLIGHTS
2
SUCCESSES
2
SUCCESS RATE
100%

The Delta 1000 series (also referred to as Straight-Eight) was an American expendable launch system which was used to conduct eight orbital launches between 1972 and 1975. It was a member of the Delta family of rockets. Several variants existed, differentiated by a four digit numerical code.

When is the Delta 1604 | IMP 7 launch?
The Delta 1604 | IMP 7 is scheduled for Saturday, September 23, 1972 at 1:20 AM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: SUCCESS.
What rocket is being used for IMP 7?
The Delta 1604 | IMP 7 mission uses the Delta 1604 rocket, manufactured by McDonnell Douglas. The Delta 1604 has flown 2 times with a 100% success rate.
Where is the Delta 1604 | IMP 7 launching from?
The launch takes place from Space Launch Complex 17B at Cape Canaveral SFS, FL, USA.
What orbit is IMP 7 going to?
The IMP 7 mission is targeting Elliptical Orbit.
Who is launching IMP 7?
The Delta 1604 | IMP 7 is operated by United States Air Force.
Can I watch the Delta 1604 | IMP 7 launch live?
Yes. Visit the launch detail page on Space Launch Live for embedded YouTube webcasts, replay videos, and links to live coverage from SpaceX, NASA, NASASpaceflight, and other channels.
Mar 28, 2026 21:44 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 28, 2026 21:44 UTC
Launch date set: Sep 23, 1972 at 01:20 UTC
NET (No Earlier Than) confirmed by United States Air Force
Mar 28, 2026 21:44 UTC
Launch completed successfully
Updated via Launch Library 2
Last data sync: 2 hours ago
Launch Library 22 hours ago
Launch ID: 5d00af1c-5334-4b3f-aeb7-a61d42eac5f9
Open-Meteo Weather2 hours ago
Pad weather at 28.45, -80.57