探査機Parker Solar Probeを搭載したULA DeltaIVヘビーロケット打ち上げ成功

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2018年8月11日打ち上げ予定でした、探査機パーカーソーラープローブ(Parker Solar Probe)を搭載したULAユナイテッドローンチアライアンス(United Launch Alliance)DeltaIVヘビーロケット(Heavy Rocket)は、打ち上げカウント約1分55秒で停止し、再度4分からの打ち上げカウントダウン表示されましたが、結局不具合があったようで、本日アメリカ合衆国現地時間2018年8月12日に打ち上げを延期し、先ほど打ち上げは成功し、探査機パーカーソーラープローブ(Parker Solar Probe)の切り離し等の確認もできたようです。

ジョンズホプキンス大学(Johns Hopkins University)が開発した探査機パーカーソーラープローブ(Parker Solar Probe)を搭載したULAユナイテッドローンチアライアンス(United Launch Alliance)DeltaIVヘビーロケット(Heavy Rocket)の打ち上げは成功。

3-2-1… and we have liftoff of Parker Solar Probe atop United Launch Alliance’s Delta IV Heavy rocket 🚀. The probe is headed toward the Sun with a whopping 55 times more energy than is required to reach Mars. About the size of a small car, it weighs a mere 1,400 pounds. Zooming through space in a highly elliptical orbit, Parker Solar Probe will reach speeds up to 430,000 miles per hour — fast enough to get from Philadelphia to Washington, D.C., in a second — setting the record for the fastest spacecraft in history. During its nominal mission lifetime of just under 7 years, Parker Solar Probe will complete 24 orbits of the Sun — reaching within 3.8 million miles of the Sun’s surface at closest approach. We’ll be going where no spacecraft has dared go before — within the corona of a star. With each orbit, we’ll be seeing new regions of the Sun’s atmosphere and learning things about stellar mechanics that we’ve wanted to explore for decades. Credit: NASA/Bill Ingalls #NASA #space #Parker #ParkerSolarProbe #SolarProbe #Solar #Sun #spacecraft #launch #liftoff #ULA #rocket #DeltaIV #science #heliophysics #orbit #probe #corona

NASAさん(@nasa)がシェアした投稿 –

ジョンズホプキンス大学(Johns Hopkins University)が開発した探査機パーカーソーラープローブ(Parker Solar Probe)を搭載したULAユナイテッドローンチアライアンス(United Launch Alliance)DeltaIVヘビーロケット(Heavy Rocket)がアメリカ合衆国現地時間2018年8月12日打ち上げ。打ち上げは成功。探査機パーカーソーラープローブ(Parker Solar Probe)の切り離しの確認は先ほど完了。

打ち上げ場所は、アメリカ合衆国フロリダ州ケープカナベラル空軍基地(Cape Canaveral Air Force Station)Space Launch Complex-37。

探査機パーカーソーラープローブ(Parker Solar Probe)は太陽のデータ、コロナなどの観測のために太陽へ接近して観測を行うのですが、多くの方の疑問だと思いますが、太陽に接近しても高熱に耐えることができるのかという疑問についてパーカーソーラープローブ(Parker Solar Probe)の構造などについてなどの解説も行われております。ちなみにパーカーはDr. Eugene N. Parkerのパーカーより。

Ready for liftoff! The Parker #SolarProbe, our mission to touch the Sun, will have its first opportunity to lift off on Saturday, Aug. 11, at 3:33 a.m. EDT. Launching from Cape Canaveral Air Force Station in Florida, Parker Solar Probe will make its journey all the way to the Sun’s atmosphere, or corona — closer to the Sun than any spacecraft in history. Nestled atop a United Launch Alliance (@ulalaunch) Delta IV Heavy — one of the world’s most powerful rockets — with a third stage added, Parker will blast off toward the Sun with a whopping 55 times more energy than is required to reach Mars. About the size of a small car, it weighs a mere 1,400 pounds. Zooming through space in a highly elliptical orbit, the probe will reach speeds up to 430,000 miles per hour — fast enough to get from Philadelphia to Washington, D.C., in a second — setting the record for the fastest spacecraft in history. During its nominal mission lifetime of just under 7 years, Parker Solar Probe will complete 24 orbits of the Sun — reaching within 3.8 million miles of the Sun’s surface at closest approach. Seen here is the rocket payload fairing at Launch Complex 37. Image Credit: NASA/Bill Ingalls #nasa #parker #parkersolarprobe #solarprobe #sun #mission #rocket #satellite #space #science #picoftheday #pictureoftheday

NASAさん(@nasa)がシェアした投稿 –

NASA | Parker Solar Probe: It’s Surprisingly Hard to Go to the Sun

The Parker Solar Probe will be the first-ever mission to "touch" the Sun, traveling directly into the Sun's atmosphere about 4 million miles from the surface.

The Sun contains 99.8 of the mass in our solar system. Its gravitational pull is what keeps everything here, from tiny Mercury to the gas giants to the Oort Cloud, 186 billion miles away.

But even though the Sun has such a powerful pull, it's surprisingly hard to actually go to the Sun: It takes 55 times more energy to go to the Sun than it does to go to Mars. Why is it so difficult? The answer lies in the same fact that keeps Earth from plunging into the Sun: Our planet is traveling very fast - about 67,000 miles per hour - almost entirely sideways relative to the Sun. The only way to get to the Sun is to cancel that sideways motion. 

Since Parker Solar Probe will skim through the Sun's atmosphere, it only needs to drop 53,000 miles per hour of sideways motion to reach its destination, but that's no easy feat. In addition to using a powerful rocket, the Delta IV Heavy, Parker Solar Probe will perform seven Venus gravity assists over its seven-year mission to shed sideways speed into Venus' well of orbital energy. These gravity assists will draw Parker Solar Probe's orbit closer to the Sun for a record approach of just 3.83 million miles from the Sun's visible surface on the final orbits. 

Though it's shedding sideways speed to get closer to the Sun, Parker Solar Probe will pick up overall speed, bolstered by Sun's extreme gravity - so it will also break the record for the fastest-ever human-made objects, clocking in at 430,000 miles per hour on its final orbits.

Parker Solar Probe–Mission Overview NASA Goddard

Parker Solar Probe will swoop to within 4 million miles of the sun's surface, facing heat and radiation like no spacecraft before it. Launching in 2018, Parker Solar Probe will provide new data on solar activity and make critical contributions to our ability to forecast major space-weather events that impact life on Earth.

In order to unlock the mysteries of the corona, but also to protect a society that is increasingly dependent on technology from the threats of space weather, NASA will send Parker Solar Probe to touch the Sun.

In 2017, the mission was renamed for Eugene Parker, the S. Chandrasekhar Distinguished Service Professor Emeritus, Department of Astronomy and Astrophysics at the University of Chicago. In the 1950s, Parker proposed a number of concepts about how stars--including our Sun- -give off energy. He called this cascade of energy the solar wind, and he described an entire complex system of plasmas, magnetic fields, and energetic particles that make up this phenomenon. Parker also theorized an explanation for the superheated solar atmosphere, the corona, which is - contrary to what was expected by physics laws -- hotter than the surface of the sun itself.