2018 September 27 asteroid occultation event

Exoplanet occultation, asteroid occultation,
solar research, comet observation, astrometry, etc.
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PTS
夸克星
文章: 6320
註冊時間: 週日 28 10月, 2007 08:50
來自: HK

2018 September 27 asteroid occultation event

文章 PTS » 週六 08 9月, 2018 21:52

2018 September 27 asteroid occultation event
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
(798) Ruth / UCAC4-512-001797 event on 2018 Sep 27, 16:25 UT
Visible from Japan, China, SE Asia


Summary
-------
On 2018 Sep 27 UT, the 46 km diameter asteroid (798) Ruth will occult a 12.3
mag star in the constellation Pisces for observers along a path across Japan,
China, SE Asia.

In the case of an occultation, the combined light of the asteroid and the star
will drop by 1.95 mag to 14.08 mag (the magnitude of the asteroid) for at most
3.8 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: 81
* date and approx. time of event: 2018 Sep 27, 16:17 - 2018 Sep 27, 16:34
* geocentric midpoint of event [JD]: 2458389.18449167
* magnitude of target star: 12.33
* magnitude drop [mag]: 1.95
* estimated maximum duration [s]: 3.8
* Moon: 93 % sunlit, 17° distance
* Sun: 163° distance
* rough path description: Japan, China, SE Asia
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PTS
夸克星
文章: 6320
註冊時間: 週日 28 10月, 2007 08:50
來自: HK

Reminder: 2018 September 27 asteroid occultation event

文章 PTS » 週三 26 9月, 2018 17:43

2018 September 27 asteroid occultation event
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
(798) Ruth / UCAC4-512-001797 event on 2018 Sep 27, 16:25 UT
Visible from Japan, China, SE Asia

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Eddy So
夸克星
文章: 11724
註冊時間: 週四 04 12月, 2008 22:35
來自: 中男海

Re: 2018 September 27 asteroid occultation event

文章 Eddy So » 週三 26 9月, 2018 22:29

[Good Job]

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