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General >> Discussion >> Minimum orbit intersection distance ( Moids)
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Message started by frankuitaalst on 07/07/07 at 05:23:20

Title: Minimum orbit intersection distance ( Moids)
Post by frankuitaalst on 07/07/07 at 05:23:20

The Lowell observatory keeps track of Asteroids as the come and go .
Hereunder is a link to what's called the present MOIDS . For each asteroid the Minimum distance to earth and other planets is given in a table. That's what the call MOID ( in Au ) .
ftp://ftp.lowell.edu/pub/elgb/current_moid.html

The site covers al lot of bodies , even small ones .
The simulation herunder is a time-frame in which the orbits of 15 bodies are drawn as they possibly come close to earth . Earth is the point in the middle with the orbit of the moon around it .
For this animation I selected the 15 bodies with the smallest MOID , so the bodies that can come very close ( in a more extended time-frame). Data come from the JPL Database.
The simulation spans about 15 years ; a screenshot was made every 50 days .
The width of the picture is 0.5 AU and pixels were on average drawn every 5 days.


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