(meteorobs) RE: meteorobs Digest, Vol 2, Issue 34
M.L. Carder
mlcarder at sedonalink.com
Tue Jun 22 18:08:37 EDT 2004
I got this message from a friend of mine this morning....
And a Happy Day to you,
Thank you for the Solstice Greeting.
I saw an unusual thing in the sky about 5 pm yesterday. It looked like a
twin tail comet, but the tails were straight, & too wide for a jet stream?
Through the binoccs..it looked like dots with tails? The path was way west
moving like deep into the sky instead of across any direction, the tails
just got smaller, I had Robbie come see but he went back in, I went in to
see where he went and he was looking for his sunglasses. When we went back
out not even a minute later, GONE?? weird?? Hope you have a phenomenal day.
Blessings of hugs,
Carol
We are in Cottonwood, Arizona -- which is north central AZ near Sedona. Is
this what all the fuss is about?
Mary Carder
Cottonwood, AZ
-----Original Message-----
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Today's Topics:
1. FW: Las Vegas Bolide, 6/19/2004 ~5AM PDT (Robert Verish)
2. Re: June Bootids - Call for observations (Lewis J. Gramer)
3. Re: June Bootids - Call for observations (Michael Boschat)
4. Re: June Bootids - Call for observations (Richard Kramer)
5. Re: June Bootids - Call for observations (putmi)
6. Predictions for June Bootids as a radio shower? (Lewis J. Gramer)
7. Re: Re: June Bootids - Call for observations (Robert Lunsford)
8. Re: Re: June Bootids - Call for observations (Geert Barentsen)
----------------------------------------------------------------------
Message: 1
Date: Tue, 22 Jun 2004 10:28:24 -0700 (PDT)
From: Robert Verish <bolidechaser at yahoo.com>
Subject: (meteorobs) FW: Las Vegas Bolide, 6/19/2004 ~5AM PDT
To: Meteor Observers <meteorobs at meteorobs.org>
Cc: Bolide Chasers <bolide_chasers at yahoogroups.com>
Message-ID: <20040622172824.80961.qmail at web51701.mail.yahoo.com>
Content-Type: text/plain; charset=us-ascii
Desparately seeking eye-witnesses who may have
observed the fireball that produced the "sonic-boom
and vapor cloud" that was reported on KVBC Ch3 News.
The "trail is getting cold" on this one, and we need
more eye-witnesses in order to triangulate where this
event actually occurred.
Any assistance would be greatly appreciated,
Bob V.
------------ Forward Message ------------
I did not hear nor see anything, but I have sent your
email off to all of our membership and a list of
nonmembers that are interested in astronomy.
JC Willette, President
--------- Request to Join List ---------
From: Verish, Robert S
[mailto:RVerish at jftl.jpl.nasa.gov]
Sent: Monday, June 21, 2004 4:18 PM
To: 'jcwillette at cox.net'
Subject: ASNLV Email List - I want to join the list
and ask members about the 6/19 LV Bolide!
Did anyone on the List from the Las Vegas area see or
hear this fireball?
Actively seeking to interview eye-witnesses, or
anybody that heard the sonic-boom from this bolide
that was seen to fall NNE from Las Vegas, Nevada.
With best regards,
Bob V.
*********************************
Robert Verish
Principal Field Investigator
Meteorite-Recovery Lab
P.O. Box 237
Sunland, CA
USA 91041
E-mail: bolidechaser at yahoo.com
website:
http://www.meteoritetimes.com/index_of_articles/Bob's_Findings_Index.htm
Phone: (626) 305-6270
Cell: (818) 599-5071
*********************************
------------ 1st Attached Message -----------
Forwarded message about possible Las Vegas bolide
early Saturday morning, June 19th. --Rob Matson - via
Bolide*Chaser:
------- 2nd Attached Message -------
To: meteorite-list at meteoritecentral.com
Sent: 6/19/2004 5:39 PM
Subject: [meteorite-list] Explosion over Las Vegas and
the Sunrise Moutain Area
Local news (Channel 3) reported an explosion over the
Sunrise Mountain area East of the City. Several people
heard a large explosion and witnessed a vapor cloud
according to Channel 3. There were no other
clouds in the vicinity at the time of the explosion.
Several people called in to see what it was. The news
reported that it was possibly a meteorite. I phoned
the news station to see if they had any witnesses
names or numbers but none were available.
They are going to rebroadcast the story on the 6PM
news and ask for witnesses to call in. I will keep you
updated.
------------- End of Attached Messages --------------
------------------------------
Message: 2
Date: Tue, 22 Jun 2004 14:14:06 -0400
From: "Lewis J. Gramer" <lgramer at upstream.net>
Subject: Re: (meteorobs) June Bootids - Call for observations
To: "'Global Meteor Observing Forum'" <meteorobs at meteorobs.org>,
<imo-news at yahoogroups.com>
Message-ID: <142801c45884$b5b28740$9101a8c0 at upstreambos.com>
This is an exciting opportunity for the amateur meteor
community to test some very recent model predictions.
By the way, all observers (not least myself!): please
note Rainer's strong recommendation that we *plot*
any suspected June Bootids during observing sessions.
I also take to heart his suggestion NOT to memorize a
radiant location for the JBOs ahead of time. This helps
me eliminate any self-doubts about "plotting the meteor
to fit the radiant" - this is just TOO easy to do... :(
This really is quite important, as it is only with good
quality data, carefully collected, that we amateurs get
to make our best contributions to humanity's knowledge
about the universe, on occasions like this.
For those in need of a refresher, here is a nice, short
introduction to plotting:
http://www.namnmeteors.org/guidechap2.html#plots
More details (including how to get plot charts, if you
do not already have them) can be found at:
http://www.imo.net/visual/minor02.html
(If you do not already have copies of the "Atlas BRNO"
charts mentioned in the sites above, don't fret - why
not try your hand at plotting on the "wrong kind" of
charts this week, *just for fun and practice*? I find
that photocopies of most common star atlases - although
they won't give scientifically useful plots because of
the "curved meteor" problem - work fine for practicing!)
And remember - whether you plot for science this week,
or just watch for fun - be sure to enjoy yourself! :)
Clear skies all,
Lew Gramer (GRALE)
> -----Original Message-----
> From: meteorobs-bounces at meteorobs.org
> [mailto:meteorobs-bounces at meteorobs.org] On Behalf Of RainerArlt
> Sent: Tuesday, June 22, 2004 11:38 AM
> To: imo-news at yahoogroups.com; meteorobs at meteorobs.org;
> meteor_bg at yahoogroups.com
> Subject: (meteorobs) June Bootids - Call for observations
>
>
>
>
> =================================
> Call for observations
> =================================
>
> Numerical computations of the June Bootid meteoroid stream by
> several researchers has revealed heighetened chances to see a
> maximum of June Bootid activity this year as early as
>
> 2004 June 23, roughly 10h - 19h
>
> A global converage of June Bootid activity will be a most
> helpful campaign in validating the numerical models. Obser-
> vations are required also for times not covered by the
> predictions. It is unlikely though that a meteor storm will
> occur. Enhanced meteor rates may mean that as few as 10 June
> Bootids are appearing per hour.
>
> It is thus recommended to plot the meteors into gnomonic
> star maps and test for June Bootid membershift _after_ the
> observation. This method has proven to give more reliable
> results.
>
> The entry velocity of the June Bootids is extremely slow:
> 18 km/s (geocentric speed 14 km/s). June Bootids are very
> slow meteors. If the meteor looks slow, it is not a June
> Bootid. Only if it looks _unusually_ slow, it is one. Once
> you have seen a real one, you'll know what I try to convey
> here.
>
> Note that the apparent radiant is always shifted towards
> the zenith by a few degrees. This is because of the slow
> speed of the June Bootids. Take the true radiant at
> alpha ~ 223 deg (RA = 14h50), delta ~ +47 and shift it
> slightly towards the zenith. June Bootids should come from
> this point.
>
> Please send your observing reports in a style similar to
>
> http://www.imo.net/visual/imoform.html
>
> to me at rarlt at aip.de, or to the meteorobs mailing list
> at meteorobs at meteorobs.org if you wish to share your expe-
> riences with others.
>
> Times below are rounded to 1/2 hours.
>
>
> Mikiya Sato:
> ------------
> Times between 12:30 and 19:30 UT are given depending on the
> dust trail approaching the Earth.
>
> Sergey Shanov & Sergey Dubrowskiy:
> ----------------------------------
> Times of 09:30 - 13:00 UT are given for various encounters to
> very small distances from the Earth. Other possibilities
> are 14:00, 15:30, 18:00 UT.
>
>
> Jeremie Vaubaillon:
> -------------------
> A time centered on 11:00 UT is given.
>
>
>
> Clear skies,
> Rainer Arlt
>
> --
> Rainer Arlt -- Astrophysikalisches Institut Potsdam -- www.aip.de
> Visual Commission - International Meteor Organization -- www.imo.net
> rarlt at aip.de -- phone: +49-331-7499-354 -- fax: +49-331-7499-526
>
> _______________________________________________
> Mailing list meteorobs
> meteorobs at meteorobs.org
> http://lists.meteorobs.org/mailman/listinfo/meteorobs
>
>
------------------------------
Message: 3
Date: Tue, 22 Jun 2004 15:33:45 -0300
From: Michael Boschat <aa063 at chebucto.ns.ca>
Subject: (meteorobs) Re: June Bootids - Call for observations
To: Global Meteor Observing Forum <meteorobs at meteorobs.org>
Message-ID: <40D87B89.7BD8099F at chebucto.ns.ca>
Content-Type: text/plain; charset=us-ascii
Hi:
I went to the following site to get my IMO Code:
http://www.imo.net/visual/online/findsite.html
but it said server busy or not responding. How do I get an IMO Code?
I'm in Halifax, Nova Scotia, Canada
Thanks
--
Clear skies
---------------
Michael Boschat
Halifax Center - Royal Astronomical Society of Canada
Astronomy page: http://www.chebucto.ns.ca/~aa063
------------------------------
Message: 4
Date: Tue, 22 Jun 2004 15:17:25 -0400
From: Richard Kramer <kramer at sria.com>
Subject: Re: (meteorobs) June Bootids - Call for observations
To: Global Meteor Observing Forum <meteorobs at meteorobs.org>
Message-ID: <4.3.2.7.2.20040622151554.00bc93c0 at mail.chemometrics.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 05:38 PM 6/22/04 +0200, you wrote:
>Note that the apparent radiant is always shifted towards
>the zenith by a few degrees. This is because of the slow
>speed of the June Bootids.
This is a very interesting point. The reason for it alludes me. I wonder if
someone would be kind enough to explain this subtlety.
Regards,
Richard
------------------------------
Message: 5
Date: Tue, 22 Jun 2004 19:39:16 -0000
From: "putmi" <michelvandeputte at hotmail.com>
Subject: Re: (meteorobs) June Bootids - Call for observations
To: Global Meteor Observing Forum <meteorobs at meteorobs.org>
Message-ID: <cba1t4+fg69 at eGroups.com>
Content-Type: text/plain; charset=ISO-8859-1
Hi list,
No June Bootid observations for 22-23 june in Belgium : a rare
summer Storm depression is on his way...
Good luck for all the observers,
Michel
VVS Belgium - meteor section
Dutch Meteor Society
--- In meteorobs at yahoogroups.com, RainerArlt <rarlt at a...> wrote:
>
>
> =================================
> Call for observations
> =================================
>
> Numerical computations of the June Bootid meteoroid stream by
> several researchers has revealed heighetened chances to see a
> maximum of June Bootid activity this year as early as
>
> 2004 June 23, roughly 10h - 19h
>
> A global converage of June Bootid activity will be a most
> helpful campaign in validating the numerical models. Obser-
> vations are required also for times not covered by the
> predictions. It is unlikely though that a meteor storm will
> occur. Enhanced meteor rates may mean that as few as 10 June
> Bootids are appearing per hour.
>
> It is thus recommended to plot the meteors into gnomonic
> star maps and test for June Bootid membershift _after_ the
> observation. This method has proven to give more reliable
> results.
>
> The entry velocity of the June Bootids is extremely slow:
> 18 km/s (geocentric speed 14 km/s). June Bootids are very
> slow meteors. If the meteor looks slow, it is not a June
> Bootid. Only if it looks _unusually_ slow, it is one. Once
> you have seen a real one, you'll know what I try to convey
> here.
>
> Note that the apparent radiant is always shifted towards
> the zenith by a few degrees. This is because of the slow
> speed of the June Bootids. Take the true radiant at
> alpha ~ 223 deg (RA = 14h50), delta ~ +47 and shift it
> slightly towards the zenith. June Bootids should come from
> this point.
>
> Please send your observing reports in a style similar to
>
> http://www.imo.net/visual/imoform.html
>
> to me at rarlt at a..., or to the meteorobs mailing list
> at meteorobs at m... if you wish to share your expe-
> riences with others.
>
> Times below are rounded to 1/2 hours.
>
>
> Mikiya Sato:
> ------------
> Times between 12:30 and 19:30 UT are given depending on the
> dust trail approaching the Earth.
>
> Sergey Shanov & Sergey Dubrowskiy:
> ----------------------------------
> Times of 09:30 - 13:00 UT are given for various encounters to
> very small distances from the Earth. Other possibilities
> are 14:00, 15:30, 18:00 UT.
>
>
> Jeremie Vaubaillon:
> -------------------
> A time centered on 11:00 UT is given.
>
>
>
> Clear skies,
> Rainer Arlt
>
> --
> Rainer Arlt -- Astrophysikalisches Institut Potsdam -- www.aip.de
> Visual Commission - International Meteor Organization --
www.imo.net
> rarlt at a... -- phone: +49-331-7499-354 -- fax: +49-331-7499-526
>
> _______________________________________________
> Mailing list meteorobs
> meteorobs at m...
> http://lists.meteorobs.org/mailman/listinfo/meteorobs
------------------------------
Message: 6
Date: Tue, 22 Jun 2004 16:04:34 -0400
From: "Lewis J. Gramer" <lgramer at upstream.net>
Subject: (meteorobs) Predictions for June Bootids as a radio shower?
To: "'Global Meteor Observing Forum'" <meteorobs at meteorobs.org>
Message-ID: <14a401c45894$23d8ee80$9101a8c0 at upstreambos.com>
Local club member John B. asks:
>I was planning on checking this (potential) shower out.
>Does anyone have an idea if this may be a good radio shower?
John, all the predictions are fairly loose on this shower
(there just isn't that much June Bootid data to base models
on - unlike with the Leonids). So the two critical factors
that would determine an outburst's characteristic details -
the spatial density of particles, and the mass distribution
of those particles - are not well determined by any of the
models. The most "precise" (not necessarily accurate!) rate
prediction I recall seeing is an UPPER bound of 250 *visual*
meteors per hour... If that materialized (which of course
it may not), it would certainly make interesting listening.
But without knowing how those meteors are mass distributed,
there's no way to tell how "strong" a radio shower might
sound (e.g., how many overdense or extended reflections).
Of course, the best answer to your question is - why not
listen (and watch, at night) to find out for yourself! ;>
Anyway, I'm forwarding this message on to the 'meteorobs'
forum, for a (hopefully) more informed and detailed answer
to this question about radio meteors! If any of our readers
come back with additional info, I'll let you know, John!
Let me know what you hear, and clear (E-free) skies!
Lew Gramer
------------------------------
Message: 7
Date: Tue, 22 Jun 2004 13:17:17 -0700
From: "Robert Lunsford" <lunro.imo.usa at cox.net>
Subject: Re: (meteorobs) Re: June Bootids - Call for observations
To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
Message-ID: <001e01c45895$ea6bef10$5fff0744 at Lunsford>
Content-Type: text/plain; charset="iso-8859-1"
Michael,
You don't need an IMO code to contribute data to the IMO. If you insist
though, IMO codes are easy. It's the first three letters of your last name
(BOS) and the first two of your first name (MI). So your IMO code would be
BOSMI.
Robert Lunsford (LUNRO)
----- Original Message -----
From: "Michael Boschat" <aa063 at chebucto.ns.ca>
To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
Sent: Tuesday, June 22, 2004 11:33 AM
Subject: (meteorobs) Re: June Bootids - Call for observations
> Hi:
>
> I went to the following site to get my IMO Code:
> http://www.imo.net/visual/online/findsite.html
>
> but it said server busy or not responding. How do I get an IMO Code?
>
> I'm in Halifax, Nova Scotia, Canada
>
> Thanks
>
> --
> Clear skies
> ---------------
> Michael Boschat
> Halifax Center - Royal Astronomical Society of Canada
> Astronomy page: http://www.chebucto.ns.ca/~aa063
> _______________________________________________
> Mailing list meteorobs
> meteorobs at meteorobs.org
> http://lists.meteorobs.org/mailman/listinfo/meteorobs
------------------------------
Message: 8
Date: Tue, 22 Jun 2004 22:24:37 +0200
From: Geert Barentsen <geert.barentsen at pandora.be>
Subject: Re: (meteorobs) Re: June Bootids - Call for observations
To: Global Meteor Observing Forum <meteorobs at meteorobs.org>
Message-ID: <6.1.0.6.2.20040622222037.04193408 at in.telenet.be>
Content-Type: text/plain; charset="us-ascii"; format=flowed
Hello Michael, Robert,
I think Michael is talking about IMO location codes. On the VMDB-page (
http://www.imo.net/visual/vmdb.html ) you can find a link to "VMDBSITE.TXT"
( http://www.imo.net/visual/vmdb/vmdbsite.txt ). This files contains many
sitecodes. I would -always- include the geographical coordinats to an
observation report though, with or without sitecode...
The page you refer to calls a script on charlie (the old imo.net server).
Unfortunately, charlie died a few months ago and is now in server-heaven :-(
I told the webmaster about the error on this page, he will have a look at
it.
Happy Bootid hunting!
Geert
At 22:17 22-6-2004, you wrote:
>Michael,
>
>You don't need an IMO code to contribute data to the IMO. If you insist
>though, IMO codes are easy. It's the first three letters of your last name
>(BOS) and the first two of your first name (MI). So your IMO code would be
>BOSMI.
>
>Robert Lunsford (LUNRO)
>
>----- Original Message -----
>From: "Michael Boschat" <aa063 at chebucto.ns.ca>
>To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
>Sent: Tuesday, June 22, 2004 11:33 AM
>Subject: (meteorobs) Re: June Bootids - Call for observations
>
>
> > Hi:
> >
> > I went to the following site to get my IMO Code:
> > http://www.imo.net/visual/online/findsite.html
> >
> > but it said server busy or not responding. How do I get an IMO Code?
> >
> > I'm in Halifax, Nova Scotia, Canada
> >
> > Thanks
> >
> > --
> > Clear skies
> > ---------------
> > Michael Boschat
> > Halifax Center - Royal Astronomical Society of Canada
> > Astronomy page: http://www.chebucto.ns.ca/~aa063
> > _______________________________________________
> > Mailing list meteorobs
> > meteorobs at meteorobs.org
> > http://lists.meteorobs.org/mailman/listinfo/meteorobs
>
>_______________________________________________
>Mailing list meteorobs
>meteorobs at meteorobs.org
>http://lists.meteorobs.org/mailman/listinfo/meteorobs
------------------------------
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