Tuesday, 29 August 2017

Asteroid 2017 QT1 passes the Earth.

Asteroid 2017 QT1 passed by the Earth at a distance of about 995 600 km (2.60 times the average distance between the Earth and the Moon, or 0.67% of the distance between the Earth and the Sun), slightly before 6.25 pm GMT on Monday 22 August 2017. There was no danger of the asteroid hitting us, though were it to do so it would have presented a significant threat. 2017 QT1 has an estimated equivalent diameter of 8-27 m (i.e. it is estimated that a spherical object with the same volume would be 8-27 m in diameter), and an object of this size would be expected to explode in an airburst (an explosion caused by superheating from friction with the Earth's atmosphere, which is greater than that caused by simply falling, due to the orbital momentum of the asteroid) in the atmosphere between 35 and 18 km above the ground, with only fragmentary material reaching the Earth's surface.

The calculated orbit of 2017 QT1 Minor Planet 

2017 QT1 was discovered on 17 August 2017 (five days before its closest approach to the Earth) by the University of Hawaii's PANSTARRS telescope on Mount Haleakala on Maui. The designation 2017 QT1 implies that it was the 44th asteroid (asteroid T1) discovered in the second half of August 2017 (period 2017 Q).  

2017 QT1 has a 1453 day orbital period and an eccentric orbit tilted at an angle of 1.18° to the plane of the Solar System, which takes it from 0.64 AU from the Sun (i.e. 78% of he average distance at which the Earth orbits the Sun, inside the orbit of the planet Venus) to 4.38 AU from the Sun (i.e. 428% of the average distance at which the Earth orbits the Sun, and almost three times as distant from the Sun as the planet Mars). It is therefore classed as an Apollo Group Asteroid (an asteroid that is on average further from the Sun than the Earth, but which does get closer). This means that 2017 QT1 has occasional close encounters with the Earth, with the next predicted in August 2029.

See also...

http://sciencythoughts.blogspot.co.uk/2017/08/asteroid-2017-qn2-passes-earth.htmlhttp://sciencythoughts.blogspot.co.uk/2017/08/fireball-over-pennsylvania.html
http://sciencythoughts.blogspot.co.uk/2017/08/asteroid-2017-qp1-passes-earth.htmlhttp://sciencythoughts.blogspot.co.uk/2017/08/asteroid-2017-pk25-passes-earth.html
http://sciencythoughts.blogspot.co.uk/2017/08/asteroid-2011-cc22-passes-earth.htmlhttp://sciencythoughts.blogspot.co.uk/2017/08/the-perseid-meteors.html
Follow Sciency Thoughts on Facebook.

1 comment:

  1. SELAMAT DATANG DI WWW.TOKO4D.NET
    *** 1 USER ID UNTUK SEMUA GAME ***
    SPORTBOOK | LIVECASINO | E-GAMES | TOGEL | POKER | SABUNGAYAM
    Toko4d Tersedia 8 Pasaran Terbaik...
    Discount : 2D : 29% | 3D : 59% | 4D : 66%
    www.prediksitogeltoko4dd.blogspot.com
    - Singapore
    - Sydney
    - Hongkong
    - Magnum4d
    - Kuching
    - Wales
    - Serbia
    - Petaling
    Promo Terbaru TOKO4D.NET :
    - Bonus Deposit MEMBER BARU Sportbook 100%
    - Bonus Deposit Sportbook 30% Setiap Hari
    - Bonus Deposit 10% Setiap Hari Untuk Semua Game
    - Bonus Casino Rollingan 0.8% Setiap Hari Senin
    - Bonus Cashback Sabungayam 15%
    - Bonus Cashback Sportbook 15%
    - Bonus Cashback E-Games 20%
    - Bonus Cashback Mixparlay 100%
    - Bonus Rollingan Poker & domino 0,3%
    - Bonus Referall 2% Semua Game
    - Bonus Referall 1% dari member Togel
    MIN DEPO & WD CUMA Rp.50.000,-
    BCA - MANDIRI - BRI - BNI - DANAMON
    UNTUK INFORMASI SELANJUTNYA BISA HUB KAMI DI :
    LIVECHAT TOKO4D.NET 24 JAM ONLINE
    Pin BBM : D8AEF213 | 2BAA30F5
    LINE : TOKO4D
    WECHAT : TOKO4DCS1
    SKYPE : TOKO4D
    GMAIL : toko4d@gmail.com
    WA +855973820012

    Togel Online
    Kasino Online
    Agen Sabung Ayam
    Judi Casino
    Agen Casino
    Agen Togel
    Judi Togel
    Agen Judi
    Judi Online
    Judi Casino
    Agen Casino
    Judi Bola
    Agen Bola

    ReplyDelete