Talk:Pioneer 0

Page contents not supported in other languages.
From Wikipedia, the free encyclopedia


When was the attempted launch of Pioneer-0?

date is now in the article, source is Encyclopedia Astronautica

Reverted strange edits by user[edit]

The user is User:Albanynewyork1.

He/she seemed to replace the article with content of unknown origin, with bad markup. Here is the edit below:

I'll rv the article, put back in the picture, then try to work out what this person has done. I'll probably put a lot of it back in, but it's not good form to completely replace an article, although it was probably just a dump from a NASA website originally, one of my pet hates.


This spacecraft was the first U.S. attempt at a lunar mission and the first attempted lauch beyond Earth orbit by any country. The Pioneer 0 probe was designed to go into orbit around the Moon and carried a TV camera and other instruments as part of the first International Geophysical Year (IGY) science payload. The spacecraft was destroyed by an explosion of the first (Thor booster no. 127) stage 77 seconds after launch at 16 km altitude, 16 km downrange over the Atlantic. Failure was suspected to be due to a ruptured fuel or oxygen line or a faulty turbopump gearbox. Erratic telemetry signals were received from the payload and upper stages for 123 seconds after the explosion, and the upper stages were tracked to impact in the ocean. The original plan was for the spacecraft to travel for 2.6 days to the Moon at which time a TX-8-6 solid propellant motor would fire to put it into a 29,000 km lunar orbit which was to nominally last for about two weeks.

Spacecraft and Subsystems[edit]

Pioneer 0 consisted of a thin cylindrical midsection with a squat truncated cone frustrum on each side. The cylinder was 74 cm in diameter and the height from the top of one cone to the top of the opposite cone was 76 cm. Along the axis of the spacecraft and protruding from the end of the lower cone was an 11 kg solid propellant injection rocket and rocket case, which formed the main structural member of the spacecraft. Eight small low-thrust solid propellant velocity adjustment rockets were mounted on the end of the upper cone in a ring assembly which could be jettisoned after use. A magnetic dipole antenna also protruded from the top of the upper cone. The shell was composed of laminated plastic and was painted with a pattern of dark and light stripes to help regulate temperature.

The scientific instrument package had a mass of 11.3 kg and consisted of an image scanning infrared television system to study the Moon's surface, a diaphragm/microphone assembly to detect micrometeorites, a magnetometer, and temperature-variable resistors to record spacecraft internal conditions. The spacecraft was powered by nickel-cadmium batteries for ignition of the rockets, silver cell batteries for the television system, and mercury batteries for the remaining circuits. Radio transmission was at 108.06 MHz through an electric dipole antenna for telemetry and doppler information and a magnetic dipole antenna for the television system. Ground commands were received through the electric dipole antenna at 115 MHz. The spacecraft was to be spin stabilized at 1.8 rps, the spin direction approximately perpendicular to the geomagnetic meridian planes of the trajectory.

JamesHoadley 13:54, 1 October 2005 (UTC)[reply]

I've back added most of the edits by the user in a proper way.

External links modified[edit]

Hello fellow Wikipedians,

I have just modified 2 external links on Pioneer 0. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 18 January 2022).

  • If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
  • If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 07:22, 11 November 2017 (UTC)[reply]