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Launch SuccessfulUnited States Air Force
Delta 1604: IMP 7
Earth-orbiting satellite designed to study interplanetary and outer magnetospheric regions.
Saturday, 23 September 1972
Delta 1604
Mission Data
🇺🇸United States Air ForceEst. 1947
Launch VehicleDelta 1604
Vehicle FamilyDelta
Vehicle Record2 of 2 launches (100%)
Provider TypeGovernment
Agency Record972 successes / 106 failures (90%)
Success Streak68 consecutive
Mission TypeAstrophysics
Target OrbitElliptical Orbit
Launch PadSpace Launch Complex 17B
Location🇺🇸 Cape Canaveral SFS, FL, USA USA
Orbital Launches This Year#80
Agency Launches This Year#19
Launches From This Pad132
Launches From This Site1,132
Status Note
The launch vehicle successfully inserted its payload(s) into the target orbit(s).
About Delta 1604
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.
Launch Site
Space Launch Complex 17B · 28.4458°N 80.5657°W
Launch data from Launch Library 2 by The Space Devs.