This article is rated Start-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects: | |||||||||||
|
Some sources claim Pioneer-4 failed, others say it succeeded. It did not get anywhere near as close to the Moon as hoped, so it is a matter of semantics whether it "missed the Moon" or "passed nearby the Moon". DonPMitchell 21:31, 28 April 2006 (UTC)
This shoudl be checked. The article says it was launched at 17:11 UTC. Siddiqi's chronology of space probes says 05:10:45. A reputable Soviet article gives the time as 22:25 UTC. So it seems we do not really konw when Pioneer 4 was launched. DonPMitchell (talk) 22:09, 7 November 2009 (UTC)
" a rotating tub" - is that a technical term or a typo? Peridon (talk) 22:04, 6 December 2013 (UTC)
I removed an implicit mention of a lunar impact as a mission objective for Pioneer 4. NASA sources make no mention of this. Instead, they speak of a flyby as the main objective. --Mtu (talk) 01:54, 17 December 2017 (UTC)
They released some fairly clean pics under CC0
https://www.si.edu/object/satellite-pioneer-iv:nasm_A19620018000