(meteorobs) Re: C/2006 VZ13 LINEAR radiant

[Roberto G.]

From: "Marco Langbroek" <marco.langbroek at wanadoo.nl>

CUT

> Francisco Ocaña wrote:
>> Julio Castellano (via CometasObs http://astrosurf.com/cometas-obs/ mail 
>> list) have noticed that this comet crosses the Earth´s orbits in August 
>> 07 and Earth pass through this point in May (3 months before or 9 months 
>> later depending on the year).
>>
>> Has anyone the software that calculates the theoretic radiant? I have 
>> seen outputs from it here in the list! Is it in the net to download? 
>> Could future passes be more favourable?
>
> Based on elements from MPEC 2006-Y62, using the software of Neslusan et 
> al.:
>
>               EQUINOX: 2000.0;       DATA FOR YEAR: 2007
>  --------------------------------------------------------------------
>  METH.  ALPHA  DELTA    VG      VH        L     DATE-MAX.    D-DISC.
>   -Q    104.0   21.1   52.70   42.41    246.0   NOV. 28.8    1.012
>   -B    149.2   -8.3   49.33   23.21    246.0   NOV. 28.8     .842
>   Q+    329.4   16.2   65.91   41.85     66.0   MAY  27.8     .004
>   B+    329.4   16.2   65.91   41.85     66.0   MAY  27.8     .004
>   P+    329.4   16.2   65.88   41.81     66.0   MAY  27.8     .006
>  --------------------------------------------------------------------

CUT

> The current elements put the eccentricity at 1.0. I would rate the chances 
> for meteors of this comet therefore as low.
>
> - Marco
>
> -----
> Dr Marco Langbroek
> Dutch Meteor Society (DMS)

The perielium of this comet it's at 1.01 U.A., its arg. of perielium at
around 174.°, if it was at 180° the MOID with the Earth
should be 0.01 U.A. (that it's 1,5 milion of Km) but with 174° the
MOID should be biggest of 0.01 U.A., then it's impossible that
there is a meteor shower and as pointed by Marco the eccentricity
it's 1 then this comet has a one time trip in the Solar Sistem.
Best greetings.
Roberto Gorelli