![]() Besides the many images of the planet (and better pictures of the Great Red Spot), Pioneer 11 took about 200 images of the moons of Jupiter. Pioneer 11 repeatedly crossed Jupiter’s bow shock, indicating that the Jovian magnetosphere changes its boundaries as it is buffeted by the solar wind. By this time, it was traveling faster than any human-made object at the time, more than 106,000 miles per hour (171,000 kilometers per hour).īecause of its high speed during the encounter, the spacecraft’s exposure to Jupiter’s radiation belts spanned a shorter time than its predecessor although it was actually closer to the planet. 3, 1974, at a range of about 26,400 miles (42,500 kilometers) from the planet’s cloud tops, three times closer than Pioneer 10. The spacecraft’s closest approach to Jupiter occurred at 05:22 UT on Dec. Pioneer 11 penetrated the Jovian bow shock on Nov. Jupiter as seen from above its north pole by Pioneer 11 in 1974. Soon, on April 26, 1974, it performed a midcourse correction (after an earlier one on April 11, 1973) to guide it much closer to Jupiter than Pioneer 10 and to ensure a polar flyby. Pioneer 11 passed through the asteroid belt without damage by mid-March 1974. Pioneer 11, the sister spacecraft to Pioneer 10, was the first human-made object to fly past Saturn and also returned the first pictures of the polar regions of Jupiter.Īfter boost by the TE-M-364-4 engine, the spacecraft sped away from Earth at a velocity of about 32,000 miles per hour (51,800 kilometers per hour), thus equaling the speed of its predecessor, Pioneer 10.ĭuring the outbound journey, there were a number of malfunctions on the spacecraft-including the momentary failure of one of the RTG booms to deploy, a problem with an attitude control thruster, and the partial failure of the asteroidal dust detector-but none of these jeopardized the mission. NASA's Pioneer 11's path through Saturn's outer rings took it within 13,000 miles (21,000 kilometers) of the planet. 24, 1995: Scientists received last engineering data from Pioneer 11 30, 1995: NASA Ames Research Center made last contact with the spacecraft Mid-March, 1974: Flew through the asteroid beltįeb. Sisyphus Asteroid/Meteoroid Detector (AMD) 5011D / Centaur D-1A)Ĭape Canaveral, Fla. Like Pioneer 10 and Voyager 1 and 2, Pioneer 11 carries a message from humanity to the cosmos.Ītlas Centaur (AC-30 / Atlas 3D no.Pioneer 11 will pass near the star Lambda Aquila in almost four million years.Pioneer 11 is one of five spacecraft on a trajectory that will take them out of our solar system.The mission ended in 1995 and Pioneer 11 is on a trajectory to take it out of the solar system. NASA's Pioneer 11, a sister spacecraft to Pioneer 10, was the first spacecraft to study Saturn up close.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |