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Re: (meteorobs) June Bootids from Xinglong, China

Rainer,

I'm sorry that i still did not understand the error in my report that you've stated.
I think the sporadic hourly rate of about 10 is very common and usual. I'm not sure what's the 77 indicative of ...
However, it cannot be a common value of the number of sporadic meteors observed in an hour.

I attach the full list of my records below. i hope it's useful for you.

(time in UT)
18:19 start
 sky obscured 10%
 #14, N=6
 #13, N=5
SPO +3
18:20 SPO -2
18:23 SPO +2
18:27 SPO +3
18:31 SPO +4
18:36 SPO +0
18:38 #14, N=7
18:39 SPO -2
18:42 SPO +2
18:49 SPO +3
18:51 JBO +0
18:58 SPO +1
19:08 #14, N=5
19:13 SPO +3
19:14 SPO +0
19:16 break
19:17 resume
19:20 #14, N=5
end


Clear skies,
Huan


----- Original Message ----- 
From: "RainerArlt" <rarlt@aipdot de>
To: "Meteorobs List" <meteorobs@atmob.org>
Sent: Sunday, June 29, 2003 3:09 PM
Subject: (meteorobs) June Bootids from Xinglong, China


> >  -----------------------------------------------------------------------
> > | Period  |Field  |Teff| F | lm | JBO| ___| ___| ___| ___| ___| ___|Spor|
> > |  (UT)   |RA  Dec|  h |   | m  |M| N|M| N|M| N|M| N|M| N|M| N|M| N|M| N|
> > |-----------------------------------------------------------------------|
> >1|1819-1920|255|+40|1.00|1.1| 4.9|C| 1| |  | |  | |  | |  | |  | |  |C|12|
> >  -----------------------------------------------------------------------
> 
> Thanks, Huan, for the additional report of the critical time of 
> June Bootid activity.  There is something else, I would like to 
> share with the observers' community. The sporadic hourly rate of 
> this period is 77, while it is expected to be of the order of 10-15.
> It looks like a systematic error is creeping into the observation.
> I think it is essential that observers keep an eye on their records
> for deviations from what's possible. A high-perception observer
> may see rates of 20-30, but I still think 77 is at the high end.
> Something must go wrong here.
> 
> Best wishes,
> Rainer
> (visual@imodot net)
> 
> --
> Rainer Arlt  --  Astrophysikalisches Institut Potsdam -- www.aipdot de
> Visual Commission - International Meteor Organization -- www.imodot net
> rarlt@aipdot de --  phone: +49-331-7499-354  --  fax: +49-331-7499-526
> 
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