(meteorobs) r values / Observations from Malta (coming soon)
Martin Galea De Giovanni
martingd at onvol.net
Thu Aug 12 13:19:40 EDT 2004
Dear all,
I am working on the local analysis (2 observers from Malta), which I will
be sending very soon. Should I be using r 2.6 to calculate the ZHRs (I
noticed that a value of 2 has been used in your observation) ? We obtained
quite some high rates. In fact it was a good show, no clouds ... just great
skies and lots of perseids ....
Regards,
Martin
At 20:00 12/08/2004, meteorobs-request at meteorobs.org wrote:
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>Today's Topics:
>
> 1. shower great (GANDNALF at aol.com)
> 2. Perseid Meteor Shower Report (Michael Boschat)
> 3. Perseid max from N. FLA (Paul Jones)
> 4. Perseid Meteor Shower Report (Bea and Bruce Patterson)
> 5. IMO Shower Circ.: First glance at Perseids (RainerArlt)
> 6. midnight Perseids from Central Florida (Bias, Peter V)
> 7. Magnitude data LANMA 11-12 Aug 2004 (Marco Langbroek)
>
>
>----------------------------------------------------------------------
>
>Message: 1
>Date: Thu, 12 Aug 2004 01:33:22 EDT
>From: GANDNALF at aol.com
>Subject: (meteorobs) shower great
>To: meteorobs at meteorobs.org
>Message-ID: <84.308e3838.2e4c5b22 at aol.com>
>Content-Type: text/plain; charset="us-ascii"
>
>central north carolina
>clouds coming in too bad
>
>facing north east up to zenith
>10.00 to 12.00 o,clock 29 metors , 14 long whitest blue trails , 2 bright
> orange ,4 yellow ones rest were short and quick white in color
>
>only one not from pers shower . coming from south to northeast
>kina yellowish longest trail of nite just lingered in the air
>
>all others from radiant no question
>
>if clouds would go a way it could easly be a 100 plus nite great
>show
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>------------------------------
>
>Message: 2
>Date: Thu, 12 Aug 2004 10:35:56 -0300
>From: Michael Boschat <aa063 at chebucto.ns.ca>
>Subject: (meteorobs) Perseid Meteor Shower Report
>To: Global Meteor Observing <meteorobs at meteorobs.org>
>Message-ID: <411B723C.2EBCA7E9 at chebucto.ns.ca>
>Content-Type: text/plain; charset=us-ascii
>
> Perseid Meteor Shower Report
>
>Date : August 11/12, 2004
>Begin: 01:20 UT
>End: 07:00 UT
>Observer: Michael Boschat
>Location: Halifax, Nova Scotia, Canada
>Lat: N 44d 39'
>Long: W 63d 36m
>Elev: 57m
>Recording Method: Eye
>
>
>Start End Teff LM PER SPO Total Cloud
>-------------------------------------------------------------
>01:20 01:59 1.00 4.0 5 1 6 60%
>
>04:00 05:00 1.00 4.5 10 0 10 5%
>
>05:00 06:00 1.00 5.0 8 0 8 0%
>
>06:00 07:00 1.00 5.0 12 1 8 0%
>
>
>
>Magnitudes: -3 -2 -1 0 1 2 TOTAL
>---------------------------------------
>PERSEIDS 1 6 10 2 9 7 ( 35 )
>SPORADICS - - - - 2 - ( 2 )
>
>
>Average Magnitudes:
>
>PERSEIDS:
>
>01:20 01:59 = +0.2
>
>04:00 05:00 = -0.6
>
>05:00 06:00 = +0.8
>
>06:00 07:00 = -0.3
>
>
>SPORADICS:
>
>01:20 01:59 = +1.0
>
>06:00 07:00 = +1.0
>
>
>
>Colour Distribuation:
>
>PERSEIDS: White Red Blue Blue/White Red/White
> 21 1 7 3 3
>
>SPORADICS: 2
>
>
>Comments:
>
> At 0200 UT a clods deck covered the sky, I then went
> home and it began to clear my observations continued from
> 0400-0700 UT from my apartment balcony but my view of the
> sky is limited to 66 degrees x 88 degrees.
>
> The shower seemed average to me no big increases but then again
> I had to observe from the city.
>
>------------------------------
>
>Message: 3
>Date: Thu, 12 Aug 2004 07:17:56 -0700 (PDT)
>From: Paul Jones <jonesp0854 at yahoo.com>
>Subject: (meteorobs) Perseid max from N. FLA
>To: meteorobs at meteorobs.org
>Message-ID: <20040812141756.58457.qmail at web50904.mail.yahoo.com>
>Content-Type: text/plain; charset="us-ascii"
>
>Amazingly, even with two hurricane/tropicalstorms baring down on us, I was
>able to get a decent look at the Perseid max this morning from St.
>Augustine. Good solid show, but nothing above the norm. Basic data
>follows, more detailed info later.
>
>St. Aug, Florida LM 5.4 Sk Cond: some haze from Bonnie in western
>sky, 20% cloud
>
>0920 - 1020 UT 51 Perseids 1 Kappa Cygnid, 1 SIA, 8 sporadics 61
>total meteors
>
>No fireballs, one -2 Per, and 3 -1 Pers were the brightest. Some trains,
>and yellow colored meteor. Also, one point meteor Pers right on the
>radiant. Probably lost about 15 o 20 meteors due to ky cond, but all in
>all I'm pretty pleased!! Reards to all, Paul in N FL
>
>
>---------------------------------
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>------------------------------
>
>Message: 4
>Date: Thu, 12 Aug 2004 10:20:52 -0400
>From: Bea and Bruce Patterson <brucep at mnsi.net>
>Subject: (meteorobs) Perseid Meteor Shower Report
>To: Global Meteor Observing Forum <meteorobs at meteorobs.org>,
> NAMN <namn at comcast.net>
>Message-ID: <411B7CC3.9020108 at mnsi.net>
>Content-Type: text/plain; charset=us-ascii; format=flowed
>
> Perseid Meteor Shower Report
>
>Date : August 12, 2004
>Begin: 06:15 UT
>End: 09:15 UT
>Observer: Bruce Patterson
>Location: Wheatley Ontario Canada
>Lat: 42.08865
>Long: -82.4635
>Recording Method: Eye
>
>
>Start End Teff LM PER SPO Total Cloud
>-------------------------------------------------------------
>06:15 09:15 3.00 4.0 121 7 128 10%
>
>
>
>
>Magnitudes: -3 -2 -1 0 1 2 TOTAL
>---------------------------------------
>PERSEIDS 5 10 10 57 29 10 ( 121)
>SPORADICS - - 5 - 2 - ( 7 )
>
>5 of 7 sporadics south to north trajectory seemed to originate from
>cygnus other two east west from pisces area
>
>
>
>
>Colour Distribution:
>
>PERSEIDS: White Red Blue Blue/White Red/White
> 99 1 7 8 6
>
>SPORADICS: 7
>
>
>Comments:
>
> At 0600 UT checked and sky was totally clear set up to observe just
>as cirrus bank started to settle in and was very surprised as it passed
>through within minutes.
>Some high cirrus and ground clutter through out observation period
>
>
>
>
>
>
>------------------------------
>
>Message: 5
>Date: Thu, 12 Aug 2004 16:54:57 +0200 (CEST)
>From: RainerArlt <rarlt at aip.de>
>Subject: (meteorobs) IMO Shower Circ.: First glance at Perseids
>To: IMO-News <imo-news at yahoogroups.com>, Meteorobs List
> <meteorobs at meteorobs.org>
>Message-ID: <200408121454.i7CEsv14024552 at gemini.aip.de>
>Content-Type: text/plain; charset=US-ASCII
>
>
>
>=====================================
>I M O S H O W E R C I R C U L A R
>=====================================
>
> The 2004 Perseids
>
>Accoding to the below, very first analysis of the 2004
>Perseids, the additional activity peak near 21h UT on
>August 11, 2004, was confirmed by visual observations
>sent to the IMO. Particle simulations predicted that this
>peak is caused my material ejected from Comet Swift-Tuttle
>at its perihelion passage in 1862 (1-revolution dust
>trail).
>
>There is not enough data yet to fix the time and level
>of the traditional Perseid maximum expected for near
>10h UT on August 12. The peak time of the 1-rev dust trail
>will probably be fixed with an accuracy of 10 minutes
>soon.
>
>We are most grateful to the observers who have contributed
>so far to the analysis (observing periods have been
>selected to get a reasonable coverage -- complete input
>will be done in the next hours):
>
>Rainer Arlt (Germany)
>Roberto Bacci (Italy)
>Lukas Bolz (Germany)
>Michael Boschat (Canada)
>Sietse Dijkstra (the Netherlands)
>Audrius Dubietis (Lithuania)
>Andre Knofel (Germany)
>Dovile Kraulaidiene (Lithuania)
>Ralf Kuschnik (Germany)
>Marco Langbroek (the Netherlands)
>Mike Linnolt (USA)
>Robert Lunsford (USA)
>Vladimir Lukic (USA)
>Hartwig Luthen (Germany)
>Felix A. Martinez (USA)
>Sirko Molau (Germany)
>Norman W. McLeod (USA)
>Sven Nather (Germany)
>Daniel van Os (the Netherlands)
>Jurgen Rendtel (Germany)
>Petra Rendtel (Germany)
>Oliver Wusk (Germany)
>Jurga Zieniute (Lithuania)
>
>------------------------------------------------------
>Date (UT) Time Solarlong nINT nPER ZHR
>------------------------------------------------------
>Aug 11.35 08:24 138.943 6 137 37 +- 3
>Aug 11.85 20:24 139.423 27 271 141 +- 9
>Aug 11.87 20:53 139.443 19 174 185 +- 14
>Aug 11.88 21:07 139.452 11 101 187 +- 19
>Aug 11.89 21:22 139.462 8 30 131 +- 24
>Aug 11.90 21:36 139.471 14 63 86 +- 11
>Aug 11.91 21:50 139.481 8 16 48 +- 12
>Aug 11.92 22:05 139.491 6 74 79 +- 9
>Aug 11.96 23:02 139.529 9 136 87 +- 7
>Aug 12.01 00:14 139.577 13 137 99 +- 8
>Aug 12.04 00:58 139.606 20 236 126 +- 8
>Aug 12.08 01:55 139.644 10 129 110 +- 10
>Aug 12.26 06:14 139.817 4 151 59 +- 5
>Aug 12.47 11:17 140.019 8 33 121 +- 21
>------------------------------------------------------
>r = 2.0 was used. Solar longitudes refer to J2000.0
>
>
>Rainer Arlt, 2004 Aug 12, 15h UT
>--------------------------------
>
>
>
>------------------------------
>
>Message: 6
>Date: Thu, 12 Aug 2004 11:09:40 -0400
>From: "Bias, Peter V" <pbias at flsouthern.edu>
>Subject: (meteorobs) midnight Perseids from Central Florida
>To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
>Message-ID:
> <805556D4AC32054FB6FA5C92FD5F236BD49F3C at fscw2k07.fscwan.lcl>
>Content-Type: text/plain; charset="utf-8"
>
>
>
> From Lakeland Florida the skies were a little hazy but clear
> enough to see a few. Limiting magnitude around 5.0. I stayed out from
> 12:05 EDT until 1:30 when fatigue caught up with me and I packed it in.
>
> 8 Perseids, 1 Kappa Cygnid, 1 Alpha Cygnid, and 4 sporadics
> during the time period. But 2 Perseids were Earthgrazers that lasted
> nearly 5 seconds each. They were orange and about -2 magnitude. Very nice.
>
> These Earthgrazers always amaze me. I remember seeing a
> 7-second Leonid back in 2001! They must be going through the atmosphere
> almost horizontally and therefore not encountering the air pressures
> found deeper toward the ground(?) You certainly never see 5-second
> Perseids and 7-second Leonids when the respective radiants are well above
> the horizon. I love those things; always memorable.
>
> And, now, to get ready for hurricane Charley...
>
>
>
> Pete Bias
>
>
>
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>------------------------------
>
>Message: 7
>Date: Thu, 12 Aug 2004 17:40:01 +0200
>From: "Marco Langbroek" <marco.langbroek at wanadoo.nl>
>Subject: (meteorobs) Magnitude data LANMA 11-12 Aug 2004
>To: "Rainer Arlt" <rarlt at aip.de>, "meteorobs NAMN"
> <meteorobs at meteorobs.org>, "dms-mail"
> <dms-mail at onelist.com>, "Carl
> Johannink" <c.johannink at t-online.de>, "Marc de Lignie"
> <m.c.delignie at xs4all.nl>, "Hans 42924 Betlem"
> <betlem at strw.leidenuniv.nl>, "Peter Jenniskens"
> <pjenniskens at mail.arc.nasa.gov>
>Message-ID: <017601c48082$a24d3850$9600000a at HAL>
>Content-Type: text/plain; charset="iso-8859-1"
>
>My magnitude data:
>
>Obs: Marco Langbroek - LANMA
>Date: August 11-12, 2004
>Loc.: Biddinghuizen, Netherlands, 52d 28' 41.76" N, 5d 37' 23.86" E
>
>PERSEIDS:
>UTC -3 -2 -1 0 +1 +2 +3 +4 +5
>20:33 - 21:00 2 0 0 2 0 2 5 3
>0
>21:00 - 21:28 0 1 0 1 0 5 6 3
>2
>21:28 - 21:49 0 0 0 3 1 8 8 5
>1
>21:49 - 22:23 0 1 0 1 2 3 2 5
>1
>22:30 - 23:01 0 0 1 1 1 5 3 1
>0
>23:06 - 23:26 0 1 2 5 1 4 3 6
>3
>23:26 - 23:46 0 1 1 0 1 6 10 5
>0
>23:46 - 00:30 0 1 2 5 6 13 9 6
>6
>-----------------------------------------------------------------
>TOTAL : 2 5 6 18 12 46 46 34 13
>-----------------------------------------------------------------
>
>SPORADICS:
>UTC -3 -2 -1 0 +1 +2 +3 +4 +5
>20:33 - 00:30 0 0 0 0 0 8 15 6 4
>-----------------------------------------------------------------
>
>- Marco
>
>------
>Dr Marco Langbroek
>Leiden, the Netherlands
>52.15896 N, 4.48884 E (WGS 84)
>
>e-mail: meteorites at dmsweb.org
>website: http://home.wanadoo.nl/marco.langbroek
>weblog: http://home.wanadoo.nl/marco.langbroek/iss_log.html
>------
>
>
>------------------------------
>
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>End of meteorobs Digest, Vol 4, Issue 24
>****************************************
>
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=====================================
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