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ASTROMETRIC UPDATE:
OCCULTATION BY (164) EVA - 2000 JUNE 17

THIS UPDATE REPLACES THE PREVIOUS UPDATE OF 12 JUNE.


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[Prediction by Edwin Goffin]

[Prediction using OCCULT software]

[Detailed finder chart by Jan Manek]

Goffin's path crosses the North Island of New Zealand around Auckland running south-west across the Tasman Sea passing just to the south of Tasmania. The path given by OCCULT lies around 0.6" to the south-east and 40 seconds later. It clips the South Island of New Zealand from Dunedin to Invercargill including Stewart Island.


UPDATE: 13 June 2000

This prediction update has been computed by Jan Manek of Stefanik Observatory based on astrometry from Ron Stone of the US Naval Observatory - Flagstaff Station. The Hipparcos position of the target star has been used.

Summary:

This update places the new path 6 path widths to the south-east of that given by Edwin Goffin and around 30 seconds later. This new path crosses the South Island of New Zealand from the north-east. Christchurch (11:56:50 UT), Timaru and Queenstown (11:57:15 UT) lie within the updated path, while Napier, Wellington (11:56:30 UT), Dunedin and Invercargill (11:57:20 UT) all lie within the error bounds of the calculation.

While the presence of the near full moon only 15 degrees from the field will complicate the observation, the brightness of the target star and the ready supply of bright neighbouring star should allow easy navigation and observing. What better way to spend a Saturday night !!!

THE EVENT AT ONE GLIMPSE: The Occultation Path: Data for the target star:
Data for the minor planet: Data for the event:

Eva 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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