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ASTROMETRIC UPDATE:
OCCULTATION BY (237) COELESTINA - 1999 JULY 13

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[Prediction using OCCULT software]

The Goffin prediction (not available on the website) gives a path across central Australia.
The OCCULT path is in accord with this.


UPDATE: 8 July 1999

This prediction update has been computed by Graham Blow based upon 7 astrometric position of the planet obtained by Ron Stone (USNO/Flagstaff) between June 13 and July 5. Reduction is against the GSC position of the star using OCCULT software.

Summary:

The update astrometry moves the path approximately one track-width south. The updated track crosses Brisbane and the region of Adelaide.

Event time is about 2.5 minutes later than the nominal OCCULT prediction.

NOTE THE THE ERROR BARS ON THIS UPDATE ARE VERY LARGE. The updated track should not be regarded with any degree of certainty.

  • Approx time for Brisbane: 13h 24m UT
  • Approx time for Adelaide: 13h 27m UT

    THE EVENT AT ONE GLIMPSE:

    Data for the target star: Data for the minor planet: Data for the event:

    Coelestina (July 13) 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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