Asteroid occultation event on 2019 May 20

Exoplanet occultation, asteroid occultation,
solar research, comet observation, astrometry, etc.
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PTS
夸克星
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來自: HK

Asteroid occultation event on 2019 May 20

文章 PTS » 週四 18 4月, 2019 13:20

Asteroid occultation event on 2019 May 20

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
(326) Tamara / TYC 0283-00181-1 event on 2019 May 20, 15:08 UT
Visible from Japan, SE Asia


Summary
-------
On 2019 May 20 UT, the 95.5 km diameter asteroid (326) Tamara will occult a
11.4 mag star in the constellation Virgo for observers along a path across
Japan, SE Asia.

In the case of an occultation, the combined light of the asteroid and the star
will drop by 1.63 mag to 12.77 mag (the magnitude of the asteroid) for at most
9.6 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: 2019 May 20, 14:59 - 2019 May 20, 15:18
* geocentric midpoint of event [JD]: 2458624.13123750
* magnitude of target star: 11.41
* magnitude drop [mag]: 1.63
* estimated maximum duration [s]: 9.6
* Moon: 96 % sunlit, 81° distance
* Sun: 121° distance
* rough path description: Japan, SE Asia

Additional comments
-------------------
duplicated source flag

The occultation path
--------------------
* approximate projected width [km]: 106
* 1 sigma uncertainty interval [path widths]: +/- 0.28
* 1 sigma uncertainty interval [seconds]: +/- 1.9
* 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.022, +/- 0.025)
* 1 sigma uncertainty ellipse (major, minor, PA): (0.031", 0.012", 139°)
* approx speed of asteroid's shadow [km/s]: 9.9934
* 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: Asteroid occultation event on 2019 May 20

文章 PTS » 週六 18 5月, 2019 11:20

reminder

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 2019 May 20

文章 PTS » 週一 20 5月, 2019 10:39

This evening.
Hope for a clear sky.

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