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Explorer 4

Jupiter C launch from Cape Canaveral & Kennedy (United States) on July 26, 1958, carrying 1 payload. GCAT records the launch as a success.

July 26, 1958 · 15:00 UTCLaunch 1958 EPSLaunch no. 15 in the log
RocketJupiter Cvariant JunoI
SpaceportCape Canaveral & Kennedypad LC5
OutcomeSuccess
Launch agencyABMAUnited States

Flight

Date and time (UTC)
July 26, 1958, 15:00
Launch designation
1958 EPS
Mission
Explorer 4
Vehicle flight ID
RS/CC-44 TT

Orbit and payload

Initial apogee
2,234 km
Payload mass to orbit
0.017 t
Payloads
1
GCAT launch code
OS

Payloads

PayloadDesignationOwnerMission typeMassFate
Explorer IV1958 EPSNORAD 9U.S. Army Ballistic Missile AgencySpace science12 kgReentered attached to another object · Oct 23, 1959

Source: GCAT launch list and payload catalogs, Jonathan C. McDowell (CC BY 4.0). Orbit values are the initial orbit reported for the launch.