Matches in DBpedia 2016-04 for { <http://science.nasa.gov/science-news/science-at-nasa/2006/06nov_loworbit/> ?p ?o }
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- 06nov_loworbit accessdate "2012-12-09".
- 06nov_loworbit date "2006-11-06".
- 06nov_loworbit editorFirst "Tony".
- 06nov_loworbit editorLast "Phillips".
- 06nov_loworbit first "Trudy E.".
- 06nov_loworbit isCitedBy Apollo_15.
- 06nov_loworbit isCitedBy Apollo_16.
- 06nov_loworbit isCitedBy Lunar_orbit.
- 06nov_loworbit isCitedBy Mass_concentration_(astronomy).
- 06nov_loworbit last "Bell".
- 06nov_loworbit publisher "NASA".
- 06nov_loworbit quote "Lunar mascons make most low lunar orbits unstable ... As a satellite passes 50 or 60 miles overhead, the mascons pull it forward, back, left, right, or down, the exact direction and magnitude of the tugging depends on the satellite's trajectory. Absent any periodic boosts from onboard rockets to correct the orbit, most satellites released into low lunar orbits will eventually crash into the Moon. ... [There are] a number of 'frozen orbits' where a spacecraft can stay in a low lunar orbit indefinitely. They occur at four inclinations: 27°, 50°, 76°, and 86° — the last one being nearly over the lunar poles. The orbit of the relatively long-lived Apollo 15 subsatellite PFS-1 had an inclination of 28°, which turned out to be close to the inclination of one of the frozen orbits—but poor PFS-2 was cursed with an inclination of only 11°.".
- 06nov_loworbit quote "Lunar mascons make most low lunar orbits unstable ... As a satellite passes 50 or 60 miles overhead, the mascons pull it forward, back, left, right, or down, the exact direction and magnitude of the tugging depends on the satellite's trajectory. Absent any periodic boosts from onboard rockets to correct the orbit, most satellites released into low lunar orbits will eventually crash into the Moon. ... [There are] a number of 'frozen orbits' where a spacecraft can stay in a low lunar orbit indefinitely. They occur at four inclinations: 27°, 50°, 76°, and 86°"—the last one being nearly over the lunar poles. The orbit of the relatively long-lived Apollo 15 subsatellite PFS-1 had an inclination of 28°, which turned out to be close to the inclination of one of the frozen orbits—but poor PFS-2 was cursed with an inclination of only 11°.".
- 06nov_loworbit title "Bizarre Lunar Orbits".
- 06nov_loworbit url 06nov_loworbit.
- 06nov_loworbit work "NASA Science: Science News".
- 06nov_loworbit work "Science@NASA".