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ASTROMETRIC UPDATE:
OCCULTATION BY (731) SORGA - 2001 JULY 28

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[Prediction by Edwin Goffin]

[Prediction using OCCULT software]

Goffin's path crosses central Victoria from the east running south of Canberra and through the northern outskirts of Melbourne before running on to the Southern Ocean. The path given by OCCULT lies slightly to the north running just south of Wollongong and Canberra and north of Melbourne.


UPDATE: 25 July 2001

This prediction update has been computed by Steve Preston of the Medina, Washington (state) in the United States based on astrometry from Ron Stone of the US Naval Observatory - Flagstaff Station supplemented with data from the AstDys database. The UCAC position of the target star has been used.

Summary:

This updated path lies around 4 path widths to the south of that given by Edwin Goffin and around 40 seconds later in expected times. The path now passes through Bass Straight without making landfall. However, Melbourne lies well within the error band of this calculation at 14:19 UT.

Observers are warned at the target star is quite faint (magnitude = 11.7) and users of small telescopes may have difficulty locating the field.

THE EVENT AT ONE GLIMPSE:

The Occultation Path: Data for the target star: Data for the minor planet: Data for the event:

Sorga Update

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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