(meteorobs) Meteorobs - skipping meteors -Addendum

[stange34 at sbcglobal.net]

You have a number of points Chris.

My thoughts were predicated on the exit angle is only slightly less than the 
entry angle even though the highest point of travel was 60 degrees from the 
observing site. And even more because the meteor is still visible as a 
traveling point of light long after ablation has stopped.

Perhaps the second operational Sentinel site will allow for the measurements 
which could decide whether we have a potential  earth crossing object, 
skipping object, or normal fireball.

It certainly is a remarkable event.

 http://www.spaceweather.com/swpod2007/14sep07/sandia1.mov

YCSentinel


----- Original Message ----- 
From: "Chris Peterson" <clp at alumni.caltech.edu>
To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
Sent: 2007/09/16 13:15
Subject: Re: (meteorobs) Meteorobs - skipping meteors -Addendum


> That's assuming the NM fireball was an Earth grazer. I'm inclined to think 
> that it descended fairly low in the atmosphere and burned up. I had three 
> cameras in Colorado that missed the event, but all three regularly pick up 
> higher meteors over Albuquerque. I think that one or more of my cameras 
> would have caught this if it had been high enough to be a grazer.
>
> Chris
>
> *****************************************
> Chris L Peterson
> Cloudbait Observatory
> http://www.cloudbait.com
>
>
> ----- Original Message ----- 
> From: <stange34 at sbcglobal.net>
> To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
> Sent: Sunday, September 16, 2007 10:04 AM
> Subject: Re: (meteorobs) Meteorobs - skipping meteors -Addendum
>
>
>> Further thoughts... This may be a contributing factor in the recent New 
>> Mexico Earth-Grazing fireball of the 13th which entered and left the 
>> atmosphere at shallow angles of 20 to 25 degrees. Period of visible 
>> abation changes would also relate to rotational mass of the object and 
>> its velocity.
>>
>> YCSentinel
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