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RE: (meteorobs) Fwd: Leonids: USA "vs" the Eastern Hemisphere

Rates of the order of 2000+ would be at odds with the visual
counts and our preliminary look at the videos from New Mexico.
Under very clear skies, it looks like the ZHR did not exceed
1100 or so. I have to go with the IMO on this one, though
I am convinced the first peak in 2000 was much higher than
published.

Sort of moot, really. We'll know when the video is analyzed; 
that's the beauty of having it all on tape.

Bill Cooke
CSC/ED44
Marshall Space Flight Center, AL 35812
Phone: (256) 544-9136
FAX: (256) 544-0242
Email: bill.cooke@msfc.nasadot gov


> -----Original Message-----
> From: Joe Rao [mailto:Skywayinc@aol.com]
> Sent: Thursday, November 29, 2001 10:11 AM
> To: Meteor Observing Mailing List
> Cc: Glenn Schneider
> Subject: (meteorobs) Fwd: Leonids: USA "vs" the Eastern Hemisphere
> 
> 
> 
> In a message dated 11/23/01 11:39:59 AM Eastern Standard 
> Time, meteors@aon.at 
> writes:
> 
> << I feel IMO will need to
>  correct the figure for the american peak from 1000 to 
> roughly 2500. 1000
>  just seems a very low figure for what we saw from Mt. Lemmon. >>
> 
>     I would agree with Jure.  I wasn't on Mt. Lemmon, but 70 
> miles to the 
> south and east, just outside of Benson, Arizona.  It seemed 
> to me that at 
> around 11h UT (4:00 a.m. MST) we were seeing Leonids coming 
> at the rate of 
> one every 1 to 2 seconds (highly subjective since I wasn't making any 
> specific counts -- I was chiefly involved in photography -- 
> but it certainly 
> seemed to me that a rate of 1000/hr. would be too low for 
> what we were 
> witnessing).
> 
>     I'm also forwarding along an E-mail message from Dr. 
> Glenn Schneider of 
> the University of Arizona.  Glenn was on Mt. Lemmon for the 
> peak.  Within his 
> E-mail he provides a graph of Leonid activity comparing data 
> compiled at Mt. 
> Lemmon to Alice Springs.  I don't know if the graph (imbedded 
> within the 
> message) will come through on the meteorobs list, but from 
> what the graph 
> shows, Arizona beat Australia with a ZHR of ~2700 to 2000.     
> 
>  -- joe rao
> 
> 
> 
> ========== FORWARDED MESSAGE
> 
> Date: Tue, 20 Nov 2001 15:22:40 -0700
> From: Glenn Schneider <gschneider@mac.com>
> Organization: Steward Observatory
> To: eclipsechaser@yahoo.com, jrbt@eclipsedot net, 
> KOLODNY@Kolodny-Anteau.com,
>         moskowi@attglobaldot net, Skywayinc@aol.com, 
> small.exoticexp@erols.com
> Subject: Leonids: USA "vs" the Eastern Hemisphere
> 
> Well, looks like it may be a tie.  It appears we had a higher peak
> rate, but over a shorter interval...
> 
> [snip... Image]
> 
> Keep in mind the ZHR is integrated over an hour long window, so the
> "instantaneous" rate at/near a peak which is much sharper (narrower)
> than an hour can (and is ) much higher.  For storms like this 
> we really
> need ZMR (zenithal minutely rate!).  Clearly on Mt. Lemmon 
> each observer
> covering only part of the sky was seeing on the order of a couple a
> second at the peak.
> 
> Looks like we all had a good show all around, but haven't yet heard
> from Craig.  Craig? Are you back?
> 
> Steve: FYI - The above chart is from the counts reduced by all
> those guys clicking away and shouting "druga, druga...", etc.
> during the morning.
> 
>  -GS-.
> 
> 
> [snip... "/Macintosh%20HD/Temporary%20Items/nsmail68.gif"]
> 
> ------- End of Forwarded Message
> 
> 
> 
> The archive and Web site for our list is at http://www.meteorobs.org
> If you are interested in complete links on the 2001 LEONIDS, see:
> http://www.meteorobs.org/storms.html
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The archive and Web site for our list is at http://www.meteorobs.org
If you are interested in complete links on the 2001 LEONIDS, see:
http://www.meteorobs.org/storms.html
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