(meteorobs) more about the 1001 trail (Leonid meteor shower)

[Andy Smith]

Being a complete novice as far a trail estimation is concerned, can someone
briefly
please explain how the shapes and locations of these ancient trails are
determined
with such accuracy, especially as there will be precious little reports on
past
encounters, let alone observational techniques. Back-dating orbit parameters
hundreds
of years must also become quite inaccurate quite quickly?

Thanks,
Andy Smith
G7IZU Radio Reflection Detection Page
http://tinyurl.com/w6pv

-----Original Message-----
From: meteorobs-bounces at meteorobs.org
[mailto:meteorobs-bounces at meteorobs.org]On Behalf Of Jeremie VAUBAILLON
Sent: 05 November 2004 18:06
To: Global Meteor Observing Forum; IMO-news
Subject: (meteorobs) more about the 1001 trail (Leonid meteor shower)


Hello you all

Here is an update of the 1001 trail encounter of Nov. 8th:

http://portail.imcce.fr/page.php?nav=en/ephemerides/phenomenes/meteor/leonid
s/Leonid_forecast_2004.php#more


Included:
- results from David Asher (Armagh Observatory, N. Ireland, UK) and others,
- position of the radiant (thanks a lot to L. Neslusan who provided the
program)

Clear Skies!!!


J. Vaubaillon


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