2021 March 30 - Asteroid occultation event

Exoplanet occultation, asteroid occultation,
solar research, comet observation, astrometry, etc.
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夸克星
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註冊時間: 週日 28 10月, 2007 08:50
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2021 March 30 - Asteroid occultation event

文章 PTS » 週五 05 3月, 2021 23:08

2021 March 30 - Asteroid occultation event

(52) Europa / UCAC4-560-030197 event on 2021 Mar 30, 11:18 UT

I've prepared finder charts from DSS and The Sky 6.
--------------------------------------------------------------------------------------------
Summary
-------
On 2021 Mar 30 UT, the 325.6 km diameter asteroid (52) Europa will occult a
12.1 mag star in the constellation Gemini for observers along a path across
China.

In the case of an occultation, the combined light of the asteroid and the star
will drop by 0.64 mag to 11.82 mag (the magnitude of the asteroid) for at most
17.3 seconds.

This update is based on, 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: 2021 Mar 30, 11:12 - 2021 Mar 30, 11:24
* geocentric midpoint of event [JD]: 2459303.97098750
* magnitude of target star: 12.05
* magnitude drop [mag]: 0.64
* estimated maximum duration [s]: 17.3
* Moon: 96 % sunlit, 116° distance
* Sun: 87° distance
* rough path description: China

The occultation path
--------------------
* approximate projected width [km]: 326
* 1 sigma uncertainty interval [path widths]: +/- 0.13
* 1 sigma uncertainty interval [seconds]: +/- 1.1
* 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.011, +/- 0.022)
* 1 sigma uncertainty ellipse (major, minor, PA): (0.022", 0.011", 5°)
* approx speed of asteroid's shadow [km/s]: 18.7797
* website for maps:
http://www.asteroidoccultation.com
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PTS
夸克星
文章: 9874
註冊時間: 週日 28 10月, 2007 08:50
來自: HK

Re: 2021 March 30 - Asteroid occultation event

文章 PTS » 週一 29 3月, 2021 15:28

reminder

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