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Skywarden,
Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki
taivaanvahti(at)ursa.fi

Ursa Astronomical Association

2019 BE5 - 1.2.2019 at 22.30 Hankasalmi, Murtoinen Observation number 80998

Visibility III / V

Arto Oksanen, Jyväskylän Sirius

PHA asteroid and virtual impactor ZTF02Rm (2019 BE5) passing Earth. This asteroid, discovered on January 31, 2019, is one of the shortest orbits around the Sun and stays inside the Earth's orbit almost all the time. Based on the observations, the target also rotates really fast, about 10 seconds per round. In my own observations, this does not show because I had to use shutter speeds of at least 15 seconds due to the opacity of the subject. The stars appear as streaks in the images as the telescope followed the asteroid moving very quickly. In the gif animation, the asteroid is at the very bottom of the image.

Astrometric measurements:

ZTF02Rm C2019 02 01.86100 05 44 52.44 +19 48 41.5 18.2 RcNEOCPA91

ZTF02Rm C2019 02 01.86171 05 44 50.40 +19 48 41.7 17.8 RcNEOCPA91

ZTF02Rm C2019 02 01.86229 05 44 48.66 +19 48 42.6 18.3 RcNEOCPA91

Track elements: Object HG Epoch M Peri. Node Incl. ena NObs NOpp Arc rms Orbit ID

ZTF02Rm 25.1 0.15 K191H 121.59691 9.58651 309.19029 1.44539 0.6589135 2.06743056 0.6102607 38 1 2 days NEOCPNomin

EDIT: changed destination name and added track diagram


Additional information
  • Observation target
    • Asteroid
  • Name of the observation target
    • 2019 BE5
    • Keskitaso
  • Seeing
    • Average
Technical information

RCOS 16RC, Paramount ME, SBIG STL-1001E, no filter, 60s shutter speed

Comments: 4 pcs
Kari Laihia - 2.2.2019 at 14.20 Report this

Mikä mahtaa olla asteroidin etäisyys kuvaajasta ? Hieno ja nopeasta liikkeestä johtuva vaikea kuvaushavainto.

Arto Oksanen - 2.2.2019 at 14.54 Report this

On nyt 150 kertaa Kuun etäisyydellä. Eilen oli paljon lähempänä, mutta nyt ei voi enää tarkistaa kun NEOCP laskee paikkoja vain tulevaisuuteen.

Arto Oksanen - 3.2.2019 at 10.33 Report this

Tämä asteroidi sai virallisen pikkuplaneettatunnuksen 2019 BE5. Sen etäisyys kuvaushetkellä oli 0.017 AU eli 2.55 miljoonaa km. Asteroidi käy juuri ja juuri Maan radan ulkopuolella ja kuuluu Aten-asteroideihin.

Arto Oksanen - 4.2.2019 at 22.28 Report this

Virtual impactor (https://cneos.jpl.nasa.gov/sentry/details.html#?des=2019 BE5). Törmää mahdollisesti Maahan 29.1.2038! 

 

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