Asteroid occultation event on Sept 07

[PTS]

Here are details and finder charts for this asteroid occultation in the early morning of Sept.07.
See also:

http://forum.hkas.org.hk/viewthread.php ... a=page%3D1

PTS
-------------------------------
IOTA/IOTA-ES occultation update for
(888) Parysatis / TYC 5839-00681-1 event on 2010 Sep 06, 18:05 UT
Visible from China, SE Asia


Summary
-------
On 2010 Sep 06 UT, the 45 km diameter asteroid (888) Parysatis will occult a 9.0
mag star in the constellation Cetus for observers along a path across China, SE
Asia.

In the case of an occultation, the combined light of the asteroid and the star
will drop by 3.9 mag to 12.9 mag (the magnitude of the asteroid) for at most 4.3
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: 69
* date and approx. time of event: 2010 Sep 06, 17:56 - 2010 Sep 06, 18:15 UT
* midpoint of event [JD]: 2455446.25397917
* magnitude of target star: 9.0
* magnitude drop [mag]: 3.9
* estimated maximum duration [s]: 4.3
* Moon: 4 % sunlit, 139?distance
* Sun: 159?distance
* rough path description: China, SE Asia

Additional comments
-------------------
wide double star

The occultation path
--------------------
* approximate projected width [km]: 48
* 1 sigma uncertainty interval [path widths]: +/- 0.86
* 1 sigma uncertainty interval [seconds]: +/- 3.9
* 1 sigma uncertainty interval approx RA,DE ["]: (+/- .046 +/- .027)
* 1 sigma uncertainty ellipse (major, minor, PA): ( .046", .026", 80?)
* approx speed of asteroid's shadow [km/s]: 10.4730
* website for maps:
http://www.asteroidoccultation.com