(meteorobs) Ursid outburst in progress - from Peter Brown

[Robert Lunsford]

The Japanese link provided my MIchel indicates a peak at solar longitude 270.8 or 23:00 UT. 

Bruce, had you been out viewing at your intended time of 1:30 UT (270.9) you would have seen the down slope of the peak with rates near 50% of maximum. Your ZHR's for the first hour of observing were probably near 20 so it may have been near 40 two hours earlier.

By the time Bill's message was received at 2:44 UT (270.957) the outburst was over. I can verify this as I read the message at 3:15 UT and watched for the next 15 minutes and did not see any activity. Of course from southern California at that time the radiant was a whopping 19 degrees high. The LM was certainly no better than +5.0 too. 

Bob Lunsford




---- Michel Vandeputte <michelvandeputte at hotmail.com> wrote: 
> Traces of a small outburst indeed? 
> http://www5f.biglobe.ne.jp/~hro/Flash/2014/URS/index.htm
> 
> On RMOB radio data I see not big signs; bit I am not a specialist of these techniques... 
> 
> Kind regards, 
> 
> 

Michel Vandeputte
 
> 
> From: michelvandeputte at hotmail.com
> To: meteorobs at meteorobs.org
> Date: Tue, 23 Dec 2014 08:58:29 +0100
> Subject: Re: (meteorobs) Ursid outburst in progress - from Peter Brown
> 
> 


Last good Ursid return, for me, is already 14 years back; the small outburst on December 22 in 2000... 
> This night was clouded out...
> 
> Kind regards
> 
> 

Michel Vandeputte
 
> 
> From: pmartin at teksavvy.com
> Date: Mon, 22 Dec 2014 22:51:42 -0500
> To: meteorobs at meteorobs.org
> Subject: Re: (meteorobs) Ursid outburst in progress - from Peter Brown
> 
> Hopelessly overcast in eastern Ontario as well!  We have a freezing rain warning to make matters worse.
> Pierre
> 
> 
> 
> 
> 
> On Dec 22, 2014, at 10:48 PM, Richard Taibi <rjtaibi at hotmail.com> wrote:Sorry- sky is overcast and raining at 3:45 UT on the 23rd.  Forecast for the metro Washington, D.C. area is clouds and rain until Thursday the 25th.  I wish I could see this!
> Richard Taibi
>  
> Date: Tue, 23 Dec 2014 04:21:02 +0100
> From: jens.lacorne at gmail.com
> To: meteorobs at meteorobs.org
> Subject: Re: (meteorobs) Ursid outburst in progress - from Peter Brown
> 
> Hello Peter,  Bill,  and all !I just return from an observation here in south-eastern France, started at 21h30 UT and ended at 01h15  UT. I saw a good activity from the ursids : a dozen per hour under a sky with LM 5-5,5 and a low  radiant. I think we can have a ZHR nearly 50 in this conditions .
> Reports come later.
> I hope that other observers can confirm this outburst.Clear skies !Jens Lacorne 
> Le 23 déc. 2014 03:44, "Bill Cooke" <cookewj at comcast.net> a écrit :
> >>
> >> FYI, looks like there is a fairly strong Ursid outburst in progress – started in the last hour or so. Not sure of the ZHR/rates but looks to be quite strong – many tens per hour at least.
> >> P
> >>  
> >> -------------------------------------------------------------------
> >> Dr. Peter Brown
> >> Director – Centre for Planetary Science and Exploration
> >> Canada Research Chair in Meteor Astronomy
> >> Dept. of Physics and Astronomy
> >> University of Western Ontario
> >> London, Ontario
> >
> >
> > Regards,
> > Bill
> >
> > (Sent from my iPhone)
> >
> > _______________________________________________
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> > meteorobs at meteorobs.org
> > http://lists.meteorobs.org/mailman/listinfo/meteorobs
> >
> 
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