(meteorobs) SPE and DAU : what is the difference?

meteoreye at comcast.net meteoreye at comcast.net
Thu Jul 24 14:06:35 EDT 2008


Oh, and BTW, no parent body is linked to either shower that I am aware of.

-------------- Original message -------------- 
From: meteoreye at comcast.net 

> Hi Karl, 
> 
> The IMO video data suggests a much longer break between the showers. Sirko 
> detected SPE activity from Sept 5-13 from near RA 48, Dec +39. DAU activity was 
> detected only from October 6-12 from near RA 106, Dec +46. So that leaves 3 
> weeks of very low (if any) activity between them. 
> 
> The IAU lists SPE activity from Sept Sept 7-23 (RA 050 Dec +39; 9/12) and DAU 
> from 9/29-10/18 (RA 84, Dec +50 10/8) 
> 
> This suggests they are clearly 2 different showers, and perhaps the IMO start 
> and end times are generous. 
> 
> Wayne 
> 


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