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(meteorobs) Eta Aquarids 1st Report
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To: "Meteorobs - Meteor Observing List (E-mail)" <meteorobs@jovian.com>, "caroline van Dissel (E-mail)" <carolinejvrvd@hotmail.com>, "David Girling (E-mail)" <davekez@peninsula.hotkeydot net.au>, "Ed Barber (E-mail)" <crobar2@ozemail.com.au>, "Geoff Carstairs (E-mail)" <geoffc@tig.com.au>, "Katherine Boicos (E-mail)" <k.boicos@ugrad.unimelbdot edu.au>
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To: "Lance C Kelly (E-mail)" <LCK1@orica.com.au>, "Lew Gramer (E-mail)" <dedalus@latrade.com>, "Mark Davis (E-mail)" <MeteorObs@charlestondot net>, "Martin Rudd (E-mail)" <quasar@net2000.com.au>, "Michael Mattiazzo [mmatti@yp-connectdot net] (E-mail)" <mmatti@yp-connectdot net>, "Perry Vlahos (E-mail)" <perryasv@melbpc.org.au>
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To: "Peter Caldwell (E-mail)" <caldwell@gsatdot edu.au>, "Peter Jenniskens (E-mail)" <peter@max.arc.nasadot gov>, "Rainer Arlt (E-mail)" <100114.1361@compuserve.com>, "Robert D Lunsford (E-mail)" <LUNRO.IMO.USA@prodigy.com>, "Robert Purvinskis (E-mail)" <robcol@senet.com.au>, "Roger Vodicka (E-mail)" <Roger.Vodicka@dstodot defencedot gov.au>
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Subject: (meteorobs) Eta Aquarids 1st Report
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From: Adam R Marsh <armarsh@jeack.com.au>
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Date: Thu, 6 May 1999 13:21:24 +1000
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Organization: ASVMS
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Reply-To: meteorobs@jovian.com
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Sender: owner-meteorobs@jovian.com
Hi All
This is the preliminary report for observations of the Eta Aquarids on the
morning of the 6th of May Local Time (5th of May UT)
Location: RJ Hammer Arboretum, Olinda, Victoria,
Australia. Elevation 420m
Observers: (5) Adam Marsh, Roger Vodicka, Martin Rudd,
Lance Kelly, Darren Davis.
Preliminary Data: From Adam Marsh's Observations.
DateUT Time UT Date LT Time LT LM Teff
ETA SPO TOT (ZHR)
5/5/99 16:40-17:40 6/5/99 02:40-03:40 +5.25 0.98
4 7 11 ----
5/5/99 17:50-18:50 6/5/99 03:50-04:50 +5.50 0.97
12 7 19 80 (+/- 23)
5/5/99 18:55-19:55 6/5/99 04:55-05:55 +5.45 0.95
25 5 30 114 (+/- 23)
Note: Due to the low limiting mag it is hard to calculate the ZHR. The
actual figure could vary by much more than the stated value. Even with a
65% gibbous moon the display was still great.
Two fireballs were seen:
The first at 04:18 LT was an excellent display of what the Eta Aquarids
can do. The fireball was very Leonid like in its appearance. The fireball
traveled from East and moved along a 50? path ending near Crux. At its
brightest it reached -5 and produced a 20? train lasting in excess of 30
seconds. The train showed movement due to high atmosphere wind currents
and was a great sight. In colour it started off white and moved through
blue and a little violet at the end.
The second was a -4 Eta Aquarid observed in the North. The time was
around 05:30 LT when it was seen. The fireball was yellow in colour and
exhibited a 5 second train which was staggered, or more accurately,
corrugated in appearance. It was another terrific meteor.
Everyone present had a great night and it was well worth the travel to a
fog free site.
------------------------------------------------------------------------
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Adam Marsh
Asst Director, ASV Meteor Section.
Melbourne, Australia.
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ASVMS Home Page http://axis.jeack.com.au/~armarsh/
Mail to: armarsh@jeack.com.au
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