Mission description
Pioneer 4 was a spin-stabilized spacecraft intended as a lunar probe and successfully performed a fly by of the moon at a height of 58983km. Unfortunately it didn't come close enough to trigger its photoelectric sensor.
March 3, 1959 at 5:10 AM UTC
Cape Canaveral SFS, FL, USA

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March 3, 1959 at 5:10 AM UTC
Status: Launch Successful · Live feed refreshes every 30 seconds
Launch Complex 5
Cape Canaveral SFS, FL, USA · 28.4394, -80.5733
Pioneer 4 was a spin-stabilized spacecraft intended as a lunar probe and successfully performed a fly by of the moon at a height of 58983km. Unfortunately it didn't come close enough to trigger its photoelectric sensor.
Juno
Height
24 m
Diameter
2.67 m
LEO capacity
41 kg
Successful launches
5
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.
Open mapConnected program records
Same launch vehicle
May 24, 1961 at 7:48 PM UTC
April 27, 1961 at 2:16 PM UTC
February 25, 1961 at 12:13 AM UTC
November 3, 1960 at 5:23 AM UTC
March 23, 1960 at 1:35 PM UTC
October 13, 1959 at 3:30 PM UTC