2021 March 07 - Asteroid occultation event

Exoplanet occultation, asteroid occultation,
solar research, comet observation, astrometry, etc.
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PTS
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文章: 17242
註冊時間: 週日 28 10月, 2007 08:50
來自: HK

2021 March 07 - Asteroid occultation event

文章 PTS » 週日 24 1月, 2021 16:43

2021 March 07 - Asteroid occultation event

(52) Europa / TYC 1326-00474-1 event on 2021 Mar 07, 16:53 UT

I've prepared finder charts from DSS and The Sky 6.
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Summary
-------
On 2021 Mar 07 UT, the 325.6 km diameter asteroid (52) Europa will occult a
11.7 mag star in the constellation Orion for observers along a path across
China, India, SW Asia.

In the case of an occultation, the combined light of the asteroid and the star
will drop by 0.63 mag to 11.43 mag (the magnitude of the asteroid) for at most
33.5 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: 100
* date and approx. time of event: 2021 Mar 07, 16:41 - 2021 Mar 07, 17:04
* geocentric midpoint of event [JD]: 2459281.20344583
* magnitude of target star: 11.68
* magnitude drop [mag]: 0.63
* estimated maximum duration [s]: 33.5
* Moon: 33 % sunlit, 174° distance
* Sun: 106° distance
* rough path description: China, India, SW Asia

The occultation path
--------------------
* approximate projected width [km]: 326
* 1 sigma uncertainty interval [path widths]: +/- 0.03
* 1 sigma uncertainty interval [seconds]: +/- 2.4
* 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.014, +/- 0.006)
* 1 sigma uncertainty ellipse (major, minor, PA): (0.014", 0.006", 84°)
* approx speed of asteroid's shadow [km/s]: 9.7139
* website for maps:
http://www.asteroidoccultation.com
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PTS
夸克星
文章: 17242
註冊時間: 週日 28 10月, 2007 08:50
來自: HK

Re: 2021 March 07 - Asteroid occultation event

文章 PTS » 週五 05 3月, 2021 15:01

Reminder: This Sunday, midnight

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