(meteorobs) Request for old SDA data

meteoreye at comcast.net meteoreye at comcast.net
Sun Sep 14 17:00:09 EDT 2008 

Koen, I have accurate data from this year at 41N. Even from here, it was an above average year. I go to great efforts to record data accurately. That's quite important with marginal LM's and low elevations. If you think my data might be useful, please contact me. My address is in the NAMN Notes.

Wayne

-------------- Original message -------------- 
From: "Koen Miskotte" <koen.miskotte at versatel.nl> 

> Hello Roberto, 
> I have a good reason to look for the data of australian observers. Normally 
> the SDA meteor stream has maximum ZHR's (according to the imo meteor 
> calendar) of 20-25. In the period of 22 juli to 2 august 2003 I had my 
> holliday on Crete (Greek) and I was able to observe almost every night. 
> During the night 28/29 juli I observed a small peak of activity. During two 
> hours the ZHR rises sharp to 40. This "enhanced" activity (this is ZHR above 
> 25) lasted for two hours. In my opinion there are two possibilities: 
> 1) an outburst with maximum zhr of 40. 
> 2) The time of maximum was exact the same as in the imo calendar. Maybe this 
> peak ZHR is normal and because of the short duration it is easely missed in 
> the past. Especcialy for northern hemisphere observers because the radiant 
> stay low on these latitides. On meteorshowers.online (Gary Kronk) I found a 
> story about Australian observations in the year 1977 and 1979 on the SDA 
> meteor stream. During the 1977 observations they had high SDA ZHR's, up to 
> 40. That's the same level as I had obsderved in 2003. The article of Kronk 
> give no information about the duration of this event: one hour, two hours, 
> one day or longer? I asked Jeff Wood for the original data but unfortunately 
> some years ago he destroyed the original records. Before he destroyed the 
> old records he sent copies of the original data to some people. Also the 
> data of 1985 and 1987 gives ZHR values up to 30. This is the same level we 
> had seen on La Palma this year. That's the reason I was seeking for these 
> data. 
> But if you can deliver me data of SDa's during 27/28, 28/29 and 29./30 july 
> 1985 and 1987 with good limiting magnitudes I certainly will have a look on 
> it! 
> Thanks for your suggestions! 
> Best wishes, Koen 
> 
> 
> 
> ----- Original Message ----- 
> From: "Roberto" 
> To: "Global Meteor Observing Forum" 
> Sent: Sunday, September 14, 2008 7:37 PM 
> Subject: Re: (meteorobs) Request for old SDA data 
> 
> 
> > Hi Koen, 
> > The years of the Italian observations are a lot more for the dates from 
> > you 
> > written. I must have hundred of hours of observations in that date from 
> > 1980 
> > to 2008. If you want to have of the copy to me in private. 
> > Roberto Haver 
> > 
> > ----- Original Message ----- 
> > From: "Koen Miskotte" 
> > To: "Global Meteor Observing Forum" 
> > Sent: Sunday, September 14, 2008 6:56 PM 
> > Subject: Re: (meteorobs) Request for old SDA data 
> > 
> > 
> >> Thanx Roberto. 
> >> I have contacted Enrico and hopefully he has the requested Australian 
> > data. 
> >> Many regards, 
> >> Koen 
> >> ----- Original Message ----- 
> >> From: "Roberto G." 
> >> To: "Global Meteor Observing Forum" 
> >> Sent: Sunday, September 14, 2008 11:49 AM 
> >> Subject: Re: (meteorobs) Request for old SDA data 
> >> 
> >> 
> >> > From: "Koen Miskotte" 
> >> > 
> >> >> Hello, 
> >> >> During the period of 25 july 'till 1 august I stayed with some fellow 
> >> >> observers at the Roque de Los Muchachos observatory at la Palma. There 
> > we 
> >> >> had een great view on the southern summerstreams the Southern delta 
> >> >> Aquarids and the Capricornids. This small expedition resulted in 
> >> >> 133,93 
> >> >> hours of data and almost 6000 meteors seen visually. To prepare an 
> >> >> analyse 
> >> >> of this data for WGN, Carl Johannink and I are now in the process of 
> >> >> calculating "r" and zhr. For further investigation we need old 
> > Australian 
> >> >> data. Does have anyone australian data of the period july 1977 (and 
> >> >> especcially the night 28/29 july 1977), 1985 and 1987? I have 
> >> >> contacted 
> >> >> Jeff Wood but onfortunately he has no longer data out of this period. 
> > But 
> >> >> he has sent to many meteor organisations on the world the original 
> >> >> reports. 
> >> >> So, if someone has this data, please kontakt me off line asap: 
> >> >> koen.miskotte(at)versatel.nl 
> >> >> Thanks for reading this message. 
> >> >> Koen 
> >> > 
> >> > I have this data but they are data from Italy, do you want this? 
> >> > 
> >> > ANNO MESE GIORNO SCIAME ORE METEORE 
> >> > 
> >> > 1998 luglio 27-28 AQUARIDI 4,00 63 
> >> > 2001 luglio 27-28 AQUARIDI 3,50 33 
> >> > 1995 luglio 28-29 AQUARIDI 3,50 25 
> >> > 2000 luglio 28-29 AQUARIDI 3,00 27 
> >> > 2001 luglio 28-29 AQUARIDI 3,00 29 
> >> > 2003 luglio 28-29 AQUARIDI 2,16 29 
> >> > 1989 luglio 29-30 AQUARIDI 2,83 27 
> >> > 1990 luglio 29-30 AQUARIDI 2,90 28 
> >> > 1992 luglio 29-30 AQUARIDI 4,50 36 
> >> > 1995 luglio 29-30 AQUARIDI 4,00 35 
> >> > 1998 luglio 29-30 AQUARIDI 4,00 87 
> >> > 2000 luglio 29-30 AQUARIDI 2,66 29 
> >> > 1998 luglio 30-31 AQUARIDI 4,00 73 
> >> > 
> >> > Or better you can visit this site: 
> >> > 
> >> > http://meteore.uai.it/ 
> >> > 
> >> > in the section Dati Osservativi visuali e video di sciami meteorici 
> >> > the data go until 1994 but Enrico Stomeo has too the data 
> >> > until 1980 and perharps too the exact data from Australia 
> >> > that you search. (At the end of the page [Uai-Sezione Meteore] 
> >> > there is its mail address). 
> >> > Best greetings. 
> >> > Roberto Gorelli 
> >> > 
> >> > 
> >> > 
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