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



You have got to be kidding.  1000/hr, I witnessed more than that at peak
time with my own eyes and thats not ZHR which would have been well over
2000/hr.  Someone needs to do some refiguring.

David Stine

> -----Original Message-----
> From: owner-meteorobs@atmob.org [mailto:owner-meteorobs@atmob.org]On
> Behalf Of Joe Rao (via Lew Gramer)
> 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
To stop getting email from the 'meteorobs' list, use the Web form at:
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