arachnol@web.de Apr 28, 2007
> -----Ursprüngliche Nachricht-----_______________________________________________________________
> Von: guide-user@yahoogroups.com
> Gesendet: 28.04.07 06:48:17
> An: guide-user@yahoogroups.com
> Betreff: [guide-user] MPCOrb.dat Sorter
>
>
>
>
> For those interested I have written a small program which takes the
> large MPCOrb file and reduces it to a small file of asteroids based on
> user date and magnitude settings.
>
> Simply select a date and maximum magnitude, the program calculates the
> asteroid position and determines its magnitude on the specified date.
> Then it writes to a new file(MPCOrb.dat) only elements with magnitude
> less than specified by the user. By doing this once a month, one can
> keep the size down and asteroid up to date. The process takes 10 to 15
> seconds to complete on my 2 year old laptop.
>
> A 16 magnitude setting showed 1348 asteroids, file size 271k.
> A 18 mag setting gave me around 10,000 with a file size a little more
> than 2 meg.
>
> Let this list know and if interest is high enough I will post a link to
> my site to download it.
>
> Denis
>
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>