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NASA Juno spacecraft is about to enter the orbit of Jupiter: the success or failure in the moment

via:博客园     time:2016/7/5 10:30:16     readed:1504


National Aeronautics and Space Administration (NASA), launched in 2011, & ldquo; Juno & rdquo; spacecraft after a five-year flight arrived in the vicinity of Jupiter. Beijing time 11:18, & ldquo; Juno & rdquo; number will begin to slow down, and Jupiter's gravity captured. Since then & ldquo; Juno & rdquo; number will become a polar-orbiting satellites around Jupiter, and Jupiter for one year of observation. After the task is completed, & ldquo; Juno & rdquo; number will fall into Jupiter's atmosphere.

Jupiter is the solar system from the inside outward ranked fifth, is the largest size of a gaseous planet. August 5, 2011, when, NASA's Juno spacecraft from Earth view, opened up to 1.74 billion miles Jupiter trip. If all goes well, Juno will be later in the United States on July 4, into the orbit of Jupiter, and open research work for up to 20 months & mdash; & mdash; at the same time it will also be the first time in ten years space around Jupiter , as well as the fastest orbit a spacecraft (nearly 130,000 miles / hour).

I hope this all goes into orbit.

Of course, such a high speed in orbit, this task is the most tense moments. In order to successfully enter the orbit of Jupiter, Juno will need to ignite the main engine (at least 35 minutes) to slow down, so that Jupiter's gravity to successfully capture it.

If the main engine shut early, there is still a chance Juneau & ldquo; parked & rdquo; in the orbit of Jupiter (not just NASA envisioned). However, if the engine can not be on fire, Juno will directly grazed Jupiter, this task will thus failed.

Juno mission objectives quite rich.

The main task is to assess the Fengyun Juno gaseous planets, Jupiter formed to raise awareness of human and structural. It carries the instrument should be able to tell us whether it has a rocky core, even revealed a trace of our solar system where the clues are formed.

Even if you are not interested in how science, research Juno is quite worth excited. NASA TV will be US Eastern Time (EDT) 10:30 start streaming this orbit, the main engine will start and 11:18 pm, and 11:38 at night ceasefire.

Why Jupiter

To Juno into orbit, the main engine ignition time required was quite long. Of course, we have to wait nearly one hour of the & ldquo; delay & rdquo; to know whether the task success & mdash; & mdash; because the signal return takes about 48 minutes.

After successfully into orbit, Juno will be nearly a year and a half of the science mission phase, around Jupiter 37 times.

[Compiled from:TechSpot]

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