Asteroid occultation event on 2020 July 24

Exoplanet occultation, asteroid occultation,
solar research, comet observation, astrometry, etc.
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PTS
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Asteroid occultation event on 2020 July 24

文章 PTS » 週三 22 7月, 2020 08:42

Asteroid occultation event on 2020 July 24

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
(22) Kalliope / TYC 5841-00666-1 event on 2020 Jul 23, 18:33 UT
Visible from Australia, China


Summary
-------
On 2020 Jul 23 UT, the 169.1 km diameter asteroid (22) Kalliope will occult a
10.0 mag star in the constellation Cetus for observers along a path across
Australia, China.

In the case of an occultation, the combined light of the asteroid and the star
will drop by 1.56 mag to 11.24 mag (the magnitude of the asteroid) for at most
29.5 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: 98
* date and approx. time of event: 2020 Jul 23, 18:14 - 2020 Jul 23, 18:51
* geocentric midpoint of event [JD]: 2459054.27313333
* magnitude of target star: 9.97
* magnitude drop [mag]: 1.56
* estimated maximum duration [s]: 29.5
* Moon: 11 % sunlit, 160° distance
* Sun: 124° distance
* rough path description: Australia, China

The occultation path
--------------------
* approximate projected width [km]: 174
* 1 sigma uncertainty interval [path widths]: +/- 0.34
* 1 sigma uncertainty interval [seconds]: +/- 5.0
* 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.033, +/- 0.024)
* 1 sigma uncertainty ellipse (major, minor, PA): (0.037", 0.018", 60°)
* approx speed of asteroid's shadow [km/s]: 5.7392
* website for maps:
http://www.asteroidoccultation.com
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PTS
夸克星
文章: 8702
註冊時間: 週日 28 10月, 2007 08:50
來自: HK

Re: Asteroid occultation event on 2020 July 24

文章 PTS » 週四 23 7月, 2020 14:28

Tonight

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Eddy So
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Re: Asteroid occultation event on 2020 July 24

文章 Eddy So » 週四 23 7月, 2020 22:49

[Good Job]

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