[APBeta] Comet data
RPEHLM
robin at lauryssen-mitchell.com
Mon Jan 19 14:24:11 PST 2009
Wait a cotton-pickin minute!!!
Just checked a bit further down the Comet.dat file. There is a format
change after the 89'th line. Values CometObject(n) where n<=89 produce
the effect previously described. n>=90 produce what I would expect to
see. For exampe, n=90 produces:
ID: [C/1995 01 ]
Name: [Hale-Bopp ]
So why the change in formatting?
Regards
Robin
RPEHLM wrote:
> Hi gang,
>
> I'm using the following script fragment to check out Comet.dat data:
>
> dim apco as APCometObject
> apco = CometObject(1)
> if apco = nil then
> debug "Comet object not found!"
> else
> debug "Comet object found"
> debug "ID: [" + apco.ID + "]"
> debug "Name: " + apco.Name + "]"
> end
>
> This fragment produces:
>
> Comet object found
> ID: [2P/Encke ]
> Name: [ ]
>
> Looking at the contents of Comet.dat it looks like ID should be
> "0002P" and Name should be "2P/Encke" (maybe with some trailing
> padding). I tried the fragment with several other values for
> CometObject(n), all produced the same result e.g. ID=something,
> Name=blank.
>
> Given that I know zip about cometary data is my assumption about the
> contents of the ID and Name fields correct? Should I raise a bug
> report or is my assumption wrong?
>
> Regards
> Robin
> P.S. The Comet.dat file was downloaded from
> <http://www.astro.cz/mpcorb> and was dated 15-Oct-2008 (seems a bit
> old to me, but there you go)
>
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