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(850) Altona @ 15Sep05

Occultation Maps for North America

(850) Altona Asteroidal Occultation

ASTEROID(850) Altona
Mag 14.8
STAR2UCAC 24883368
Mag 11.5
RA 17:26:48.897
Dec -18° 11' 1.74"
Mag Drop 3.4m
Max Duration 4.1 sec

To plot an offset line on each side of the path centerline enter the desired distance from the centerline
(0.1 - 1000 km) in this box
As much as you want to, DON'T PRESS ENTER!
It will just cause the page to reload with the default settings.
1 degree spacing between data points.
Based on data updated 2005 Aug 11, 23:42 UT.
Download a-ready-to-use Google Earth points file (track.kml) for this event.

Map Position

Map Scale

Map Content

Map Legend

Green Path Centerline.
Blue Path Limit Line (width of asteroid's shadow).
The area between the blue and red lines in the Uncertainty Zone.
Red Path Error Limit Line. There is a 68% probability that the asteroid's shadow will fall somewhere between the two Path Error Limit Lines.
Black User defined offsets from the path center line.

Path data sourced from Steve Preston's Asteroidal Occultation Predictions site.

Jump to the index of current North American occultation maps.

This is a beta test (does not work on all browsers) using GOOGLE Maps.
Based on work done by Kiwi Geoff, Christchurch, New Zealand, and created utilizing his SHADOW program and JavaScript functions he developed.

Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.