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(meteorobs) Re: AKM video observations 12/99

Let me take the liberty to answer for Sirko as I have seen his system in
action. This program not only records a video image of the meteor but
also records accurate data such as time of occurrence, apparent
magnitude, shower association, and angular velocity.

As stated in the notes from Sirko, the 35 mm F2.0 lens has a 40 degree
field and can record meteors down to 5th magnitude.

As you can see this system is much more than a basic counting device. As
for double station recording, this is a question that Mr. Molau would
have to address.

Clear Skies!

Robert Lunsford


Cary Chleborad wrote:
> 
> Sirko Molau wrote:
> 
> > Observing Times of the German AKM Video Cameras - December 1999
>  ================================================================
> > Since March 1999, a number of video meteor cameras are regularly operated
> > by members of the German 'Arbeitskreis Meteore'. The systems work fully
> > autonomously with the MetRec meteor detection software.
> > Sirko Molau
> > 1. Observers
> > ============
> > Code     Name      Place         Camera        FOV      LM     Time  Meteors
> > ----------------------------------------------------------------------------
> > EVSTE  Evans     L. Thurlow  EMILY (1.4/50)   20 deg  6.0 mag   4.5 h    75
> > MOLSI  Molau     Aachen      AVIS (2.0/35)    40 deg  5.0 mag  23.3 h   225
> > NITMI  Nitschke  Dresden     VK1 (0.75/50)    20 deg  7.0 mag   3.5 h    33
> > RENJU  Rendtel   Marquardt   CARMEN (1.8/28)  28 deg  4.5 mag  15.7 h    40
> > SPEUL  Sperberg  Salzwedel   ADAM (0.75/50)   20 deg  7.0 mag   6.2 h    28
> > ----------------------------------------------------------------------------
> > Overall                                                        53.2 h   401
> 
> Your reports from your video network are interesting but I have a
> question or two.
> 
> First,  is my understanding of your metrec software correct in the fact
> that is is simply a raw counting device and it provides no other data on
> the meteor event other than it happened?  Also, it floats around in my
> head that the limiting magnitude detection is somewhere around mag 1 or
> so - is this correct?
> 
> If my assumption is correct, what is the justification for such under
> utilization of such expensive and complex hardware?
> 
> What is the value in a raw count without the meteors tied to a specific
> shower or region of the sky?
> 
> Have you considered two station observing so that orbits may be
> calculated?
> 
> -Cary
> 
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