Asteroid occultation on June 26, 2013

Exoplanet occultation, asteroid occultation,
solar research, comet observation, astrometry, etc.
回覆文章
PTS
夸克星
文章: 6305
註冊時間: 週日 28 10月, 2007 08:50
來自: HK

Asteroid occultation on June 26, 2013

文章 PTS » 週三 19 6月, 2013 08:58

I've prepared finder charts from DSS and Sky 6.
DSS finder charts are 15 x 15 arcmin.
Please see also:
http://occultation.freebbs.tw/viewthrea ... a=page%3D1


pts
========================================IOTA/IOTA-ES occultation update for
(1471) Tornio / TYC 7871-00899-1 event on 2013 Jun 26, 15:54 UT
Visible from China


Summary
-------
On 2013 Jun 26 UT, the 42 km diameter asteroid (1471) Tornio will occult a 10.2
mag star in the constellation Scorpius 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 5.0 mag to 15.2 mag (the magnitude of the asteroid) for at most 3.4
seconds.

This update is based on UNSO/Flagstaff astrometry for the asteroid kindly
provided by Alice Monet, historical astrometry from the MPC files (via AstDys),
and the following catalogs for the star position: UCAC.

The event at a glimpse
----------------------
* Rank: 36
* date and approx. time of event: 2013 Jun 26, 15:50 - 2013 Jun 26, 15:58 UT
* geocentric midpoint of event [JD]: 2456470.1626375
* magnitude of target star: 10.2
* magnitude drop [mag]: 5.0
* estimated maximum duration [s]: 3.4
* Moon: 86 % sunlit, 68� distance
* Sun: 153� distance
* rough path description: China

Additional comments
-------------------
possible double star

The occultation path
--------------------
* approximate projected width [km]: 93
* 1 sigma uncertainty interval [path widths]: +/- 1.84
* 1 sigma uncertainty interval [seconds]: +/- 10.2
* 1 sigma uncertainty interval approx RA,DE ["]: (+/- .112 +/- .033)
* 1 sigma uncertainty ellipse (major, minor, PA): ( .112", .033", 91� )
* approx speed of asteroid's shadow [km/s]: 12.2721
* website for maps:
http://www.asteroidoccultation.com
您沒有權限檢視這篇文章所附加的檔案。

PTS
夸克星
文章: 6305
註冊時間: 週日 28 10月, 2007 08:50
來自: HK

Reminder

文章 PTS » 週三 26 6月, 2013 20:51

It seems too cloudy.

回覆文章

回到「業餘天文研究專區 Amateur Astronomers' Research Area」

誰在線上

正在瀏覽這個版面的使用者:沒有註冊會員 和 1 位訪客