(meteorobs) Geminid bonanza in Colorado

[Chris Peterson]

These shower identifications are single station, based on radiant and 
velocity. Some meteors simply have too short a trail, or are too close 
to the horizon to accurately determine a radiant. Those go in the 
unknown bin. Sporadics are meteors with trails that don't align with any 
active radiant. I can bin most of them into antihelion and northern apex 
members, but my little radiant analyzer just lumps all sporadics together.

Chris

*******************************
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com

On 12/14/2013 2:23 PM, Roberto Gorelli wrote:

> What it's the difference between Sporadic and Unknown?
> Best greetings.
> Roberto Gorelli