Success
Explorer 4
Earth Science
Army Ballistic Missile Agency(ABMA)Government
Juno-IJuno I
MEOorbit
An American satellite in order to study the Van Allen radiation belts and the effects of nuclear explosions upon these belts.
Saturday, July 26, 1958 at 3:00 PM
Mission details
Orbital Attempt
#15
ABMA Mission
#4
Pad Launch
#1
Location Launch
#10
Designator
1958-005
Launch Window
NET
Jul 26, 1958, 3:00 PM
Schedule Changes
1 update
Cape Canaveral SFS, FL, USA
Cape Canaveral Space Force Station (CCSFS) is an installation of the United States Space Force's Space Launch Delta 45, located on Cape Canaveral in Brevard County, Florida.
Timezone
America/New_York
Local Launch Time
Jul 26, 1958, 11:00 AM
Total Launches
1,109
Total Landings
75
Coordinates
28.4889, -80.5778
Juno-I Specs
The Juno I was a four-stage American booster rocket which launched America's first satellite, Explorer 1 in 1958. A member of thr redstone family, it was derived from the Jupiter-C sounding rocket.
Length
21.2 m
Diameter
1.78 m
Launch Mass
29 t
Thrust
416 kN
LEO Capacity
11 kg
Reusable
No
Maiden Flight
1958
Fastest Turnaround
20d 23h
Total Launches
6
Successful
3
Failed
3
Consecutive Success
0
Maiden flight: Jan 31, 1958
Army Ballistic Missile Agency
The Army Ballistic Missile Agency was formed to develop the U.S. Army's first large ballistic missile. The agency was established at Redstone Arsenal on 1 February 1956, and commanded by Major General John B. Medaris with Wernher von Braun as technical director.
Total Launches
12
Successful
5
Failed
7
Pending
0
Consecutive Success
0