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Re[2]: (meteorobs) Perseids in Japan : Preliminary results
Dear Steve,
I think that you are misunderstanding about this table. These data base
on individual counting observations, not to be counted by Group. "#Obs",
"T.eff" and "#Per" shows simple total number of individual counting
observations. But, ZHR(Per) is a value which averages after calculated
individual ZHR.
If you can not see this explanation, you should see the calculated formula
and more detail data as following URL.
http://www2u.biglobe.ne.jp/~nms/tb99per.html
Clear skies. Takema,
On Sat, 14 Aug 1999 12:07:35 +0100
Steve Harrison <ko0u@os.com> wrote:
> At 08:47 PM 1999-08-14 +0900, you wrote:
> >Perseids 1999
> >Visual results in Japan (The Nippon Meteor Society).
> [snip]
> ---------------------------------------------------------
> Time[UT] #Obs T.eff #Per ZHR(Per) SD Err. Remarks
> ---------------------------------------------------------
> >Aug.12, 1999
> >12:30 1 0.50 2 103 - 73
> >13:30 3 2.42 16 55 20 14
> >14:30 3 1.83 34 125 70 21
> >15:30 2 1.50 40 61 14 10
> >16:30 3 2.00 74 90 20 10
> >17:30 10 8.97 518 113 34 5
> >18:20 9 7.48 528 159 48 7
>
> Is this to say that 518 total Perseids were counted by 10 observers, and
> 528 by 9 observers, during the two hours mentioned above?? I thought that
> combining meteor counts in this manner was considered invalid since the
> perception of each observer is different? Are the counts above somehow
> normallized to some Lm, and if so, what method was used?
>
> For some reason, I'm starting to feel like GeoZay this morning...
>
> SteveH
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-----------------------------------
thashi@din.or.jp Hashimoto, Takema
Minor Meteor Shower Circular(MMSC)
URL : http://www.din.or.jp/~thashi/index_E.htm
-----------------------------------
Nippon Meteor Society (NMS)
Association of Meteor Observers in and around Tokyo Area (AMOTA)
-----------------------------------
To UNSUBSCRIBE from the 'meteorobs' email list, use the Web form at:
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