Launch to last contact 107 days; launch to last data received 50 days
Spacecraft properties
Manufacturer
TRW
Launch mass
43.2 kilograms (95 lb)[1]
Start of mission
Launch date
11 March 1960, 13:00:07 UTC (1960-03-11UTC13:00:07)
Rocket
Thor DM 18-Able IV
Launch site
Cape Canaveral, LC-17A
Contractor
Douglas
End of mission
Last contact
Last contact 26 June 1960 (1960-06-27);[1] last data received 30 April 1960[2]
Orbital parameters
Reference system
Heliocentric
Eccentricity
0.1689
Perihelion altitude
0.7061 astronomical units (105,630,000 km; 65,640,000 mi)
Aphelion altitude
0.9931 astronomical units (148,570,000 km; 92,310,000 mi)
Inclination
3.35°
Period
311.6 days
Pioneer program
← Pioneer P-31
Pioneer 6 →
Pioneer 5 (also known as Pioneer P-2, and Able 4, and nicknamed the "Paddle-Wheel Satellite"[3]) was a spin-stabilized space probe in the NASA Pioneer program used to investigate interplanetary space between the orbits of Earth and Venus. It was launched on 11 March 1960 from Cape Canaveral Air Force Station Launch Complex 17A at 13:00:00 UTC[4] with an on-orbit dry mass of 43 kilograms (95 lb). It was a 0.66 metres (2 ft 2 in) diameter sphere with 1.4 metres (4 ft 7 in) span across its four solar panels and achieved a solar orbit of 0.806 × 0.995 AU (121,000,000 by 149,000,000 km).
Data was received until 30 April 1960. Among other accomplishments, the probe confirmed the existence of interplanetary magnetic fields.[5]Pioneer 5 was the most successful probe in the Pioneer/Able series.
The original mission plan was for a launch in November 1959 where Pioneer 5 would conduct a flyby of Venus, but technical issues prevented the launch from occurring until early 1960 by which time the Venus window for the year had closed. Since it was not possible to send the probe to Venus, it would instead merely investigate interplanetary space and an actual mission to the planet would have to wait another three years.[6]
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Pioneer5 (also known as Pioneer P-2, and Able 4, and nicknamed the "Paddle-Wheel Satellite") was a spin-stabilized space probe in the NASA Pioneer program...
network: Pioneer 6 (Pioneer A) – launched December 1965 Pioneer 7 (Pioneer B) – launched August 1966 Pioneer 8 (Pioneer C) – launched December 1967 Pioneer 9...
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April 2019. Retrieved 27 August 2019. "Shankar is new IDA chairman". The Pioneer. 5 October 2013. Retrieved 27 August 2019. "Lalwani: Lalwani back as IDA...
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Record" (PDF). history.nasa.gov. Retrieved February 24, 2017. "In Depth | Pioneer5 – Solar System Exploration: NASA Science". Solar System Exploration: NASA...
writer, and television personality. Drummond became known for her blog, The Pioneer Woman, which documented her life in rural Oklahoma. Capitalizing on the...
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April 2019. "Pioneer5". nssdc.gsfc.nasa.gov. Archived from the original on 3 August 2020. Retrieved 15 April 2019. "In Depth | Pioneer5". Solar System...
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October 18, 2023. "Dentsu acquires Pioneer - News". Anime News Network. July 21, 2003. Retrieved November 5, 2013. "Pioneer Entertainment Inc. to Become Geneon"...
Pioneer species are resilient species that are the first to colonize barren environments, or to repopulate disrupted biodiverse steady-state ecosystems...
from the original on 2023-08-03. Retrieved 2023-05-15. "Able 5A (Pioneer P-30) | Pioneer P-30". NASA Solar System Exploration. Archived from the original...
The Pioneer anomaly, or Pioneer effect, was the observed deviation from predicted accelerations of the Pioneer 10 and Pioneer 11 spacecraft after they...
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telescope tracked Pioneer 1 from 11 to 13 November 1958, Pioneer 3 in December 1958, and Pioneer 4 in March 1959. The telescope tracked Pioneer5 between 11...
Global Information
