Asteroid occultation event on 2018 December 5

Exoplanet occultation, asteroid occultation,
solar research, comet observation, astrometry, etc.
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PTS
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Asteroid occultation event on 2018 December 5

文章 PTS » 週日 04 11月, 2018 16:30

Asteroid occultation event on 2018 December 5

I've prepared finder charts from:
Digital Sky Survey (15 x 15 arcmin) and The Sky 6 (15x11 arcmin)

IOTA/IOTA-ES occultation update for
(84) Klio / TYC 2909-01637-1 event on 2018 Dec 05, 16:39 UT
Visible from China, SE Asia, India


Summary
-------
On 2018 Dec 05 UT, the 79 km diameter asteroid (84) Klio will occult a 11.9 mag
star in the constellation Auriga for observers along a path across China, SE
Asia, India.

In the case of an occultation, the combined light of the asteroid and the star
will drop by 0.95 mag to 12.28 mag (the magnitude of the asteroid) for at most
7.3 seconds.

This update is based on UNSO/Flagstaff astrometry for the asteroid kindly
provided by Hugh Harris, astrometry for the asteroid kindly provided by Bill
Owen, astrometry for the asteroid kindly provided by the IAU Minor Planet
Center.

This work has made use of data from the European Space Agency (ESA)
mission Gaia (http://www.cosmos.esa.int/gaia), processed by the
Gaia Data Processing and Analysis Consortium
(DPAC, http://www.cosmos.esa.int/web/gaia/dpac/consortium).
Funding for the DPAC has been provided by national institutions, in
particular the institutions participating in the Gaia Multilateral Agreement.

The event at a glimpse
----------------------
* Rank: 99
* date and approx. time of event: 2018 Dec 05, 16:30 - 2018 Dec 05, 16:49
* geocentric midpoint of event [JD]: 2458458.19445833
* magnitude of target star: 11.92
* magnitude drop [mag]: 0.95
* estimated maximum duration [s]: 7.3
* Moon: 3 % sunlit, 145° distance
* Sun: 162° distance
* rough path description: China, SE Asia, India

The occultation path
--------------------
* approximate projected width [km]: 82
* 1 sigma uncertainty interval [path widths]: +/- 0.21
* 1 sigma uncertainty interval [seconds]: +/- 2.0
* 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.036, +/- 0.017)
* 1 sigma uncertainty ellipse (major, minor, PA): (0.036", 0.017", 87°)
* approx speed of asteroid's shadow [km/s]: 10.8409
* website for maps:
http://www.asteroidoccultation.com
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Eddy So
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註冊時間: 週四 04 12月, 2008 22:35
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Re: Asteroid occultation event on 2018 December 5

文章 Eddy So » 週日 04 11月, 2018 21:59

[Good Job]

PTS
夸克星
文章: 17242
註冊時間: 週日 28 10月, 2007 08:50
來自: HK

Re: Asteroid occultation event on 2018 December 5

文章 PTS » 週三 05 12月, 2018 07:04

reminder

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