(meteorobs) New possible parent body for an unknown meteor shower

[Marco Langbroek]

Roberto G. schreef:
> The 28 July 2008 it was discovered a new Neo asteroid, 2008 OB,
> 
> http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2008+OB9&orb=1
[snip]

> the shower should be 
> Southern (but I not do exact calculation on this topic), 

It is not southern. The software of Neslusan et al. gives the following output 
for the theoretical radiant:

              EQUINOX: 2000.0;       DATA FOR YEAR: 2008
--------------------------------------------------------------------
METH.  ALPHA  DELTA    VG      VH        L     DATE-MAX.    D-DISC.
  -Q    355.1   27.3   18.28   38.83    203.1   OCT. 16.2     .010
  -B    355.1   27.3   18.30   38.85    203.1   OCT. 16.2     .010
  -W    356.4   27.2   18.52   38.79    203.1   OCT. 16.2     .020
  -A    355.0   26.2   18.47   38.78    201.5   OCT. 14.6     .008
  -H    355.0   26.6   18.52   38.78    201.6   OCT. 14.7     .006
  -P    355.0   27.0   18.49   38.78    201.9   OCT. 15.0     .006
  Q+     10.6   -8.5   25.80   33.74     23.1   APR. 12.8     .442
  B+     12.0  -15.7   17.80   29.97     23.1   APR. 12.8     .386
  W+     43.6  -10.5   18.59   38.65     23.1   APR. 12.8     .775
  A+    346.2  -34.8   18.54   39.03    318.0   FEB.  7.6     .251
  H+    344.3  -20.4   17.23   39.02    320.2   FEB.  9.7     .210
  P+    342.0   -9.7   17.56   39.01    323.7   FEB. 13.1     .228
--------------------------------------------------------------------
FIRST/SECOND (-/+) SET OF DATA CONCERNS THE PRE-/POST-PERIHELION ARC
THE BEST METHOD - PRE-PERIHELION ARC:  P     (D =  .006)
                 - POST-PERIHELION ARC: H     (D =  .210)


So the radiant is actually not southern: but in northern Pegasus, with very slow 
meteors.

- Marco

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Dr Marco Langbroek
Dutch Meteor Society (DMS)

e-mail: meteorites at dmsweb.org
DMS website: http://www.dmsweb.org
private website: http://www.marcolangbroek.nl
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