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THE UPDATED PATH
This updated path lies around three quarters of a path width south of that given by Occult and around 10 seconds later. The path now runs from western Victoria covering the country between Warnambool and Naracoorte in South Australia around 10:25:10 UT. Running northeast the path includes Bendigo, Albury and Sydney just within the southern limit with Wagga Wagga and Bathurst more centrally located around 10:25:25 UT. Canberra lies just outside the southern limit and Melbourne lies well within the error margin. Newcastle lies near the centreline with Taree near the northern edge.
This event will be at a relatively low altitude for most observers ranging between 25 degrees for western Victorian observers down to 17 degrees for observers on the New South Wales coast. This is compensated to some extent by the relative brightness of the target star. Note that at magnitude 11.9, (14) Irene will be visible to observers with even moderate sized scopes in the event of an occultation.
The error band for this calculation is very small such that sites near the centreline are virtually guaranteed to see an occultation (as much as a guarantee can be given on these things) !!!
Calculation Source
This prediction update has been computed by Steve Preston of Medina, Washington (state) in the United States based on astrometry from Ron Stone of the US Naval Observatory - Flagstaff Station, USA and Bill Owen of Table Mountain Observatory - JPL supplemented with data from the AstDys database. The Hipparcos position of the target star has been used.
Additional details of this and other events are available at Steve Preston's website at http://www.oz.net/~stevepr/Asteroids/asteroid.htmEVENT DETAILS SUMMARY:
IMPORTANT NOTE!
Astrometric updates such as these should not be taken as definitive, but rather only as an indication of where the true track may lie relative to the original predicted track. Observers must bear in mind that later astrometry, in which the target star is measured in the same field as the asteroid, may still reveal substantial changes to the predicted track and time of the event. For this reason it is most important that observers far from the predicted track still monitor the event.
Use these links for further information:
[Planetary Occultations]
[Using the Predictions]
[Observing Details]
[Timing Details]
[Reporting Details]
[Report Form]
[Asteroid Occultation Results]
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