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Re: (meteorobs) Eta-Aquarids by Radio Obs. in Japan
I was confused by the Australian report because they were giving UT times before
those times were even near occurring here. I am located in the Pacific Daylight
Saving Time zone which is UT-7hrs. I am aware that Australia is on the other
side of the international time line. I was reading his e-mail at about midnight
May 4/5 and May 5 22:00 UT was a long way.
Hiroshi Ogawa wrote:
> Hello,everyone
>
> The following table is the result of Eta-Aquarids by Radio Meteor
> Observation. In Japan, we cold not see the high activity on 5th night(UT).
> On 4th night(UT), however, we can see the high activity from 20:00 to
> 23:00(UT). Did the maximum occur 20:00-23:00 on 4th(UT)?
>
> But, by the observer in Australia, they could catch the clear maximum
> 18:00-19:00(UT) on 5th(UT). Why? The big difference is the location.
> Australia is the southern hemisphere. Is the reason this effect??
>
> My observational page is http://homepage2.nifty.com/~baron/
>
> Clear sky
> Hiroshi Ogawa
>
> The first line is "all echoes". The second line is "long echoes(>20sec.)"
>
> UT 15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
> LT 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
> ----------------------------------------------------------------------------
> May,2001
> 01/ IF IF IF@16 21 14 23 21 17 17 15 16 11 12 10 14 6 3 4 9 14 11 12 IF
> 1
> 02/ IF IF 17 17 20 28 24 26 24 22 12 14 11 12 10 11 10 4 6 11 IF IF 14 IF
> 1
> 03/ IF IF IF 25 23 30 30 23 28 23 12 15 17 12 14 7 2 3 1 4 3 3 8@21
> 1 1 1 1 2
> 04/@19 16 19 27 25 25 35 29 22 22 22 18 6 18 10 10 8 11 4 4 8 5 13 9
> 1 1 1
> 05/ IF@16 18 27 18 35 30 35 32 31 29 30 18 -- -- -- 4 Es @8 @3 12 6 17 11
> 1 3 1 1 1
> 06/ 21 16 12 24 18 29 25 27 22 24 10
> 1 1
>
> LT=JST =UT + 9 h
>
> memo:
> Location: Misato Observatory(Wakayama, JAPAN) 135.40deg E, 34.13deg N
> Frequency: 53.750 MHz.
> Antenna: original Dipole(height:1m, to level, element:west-east)
> Receiver:AOR AR8000 USB-Mode
> Observing method: HROFFT software(by Okawa), manual count
>
> @: Hourly rate estimated by effective observation time less than 60 min.
> IF: Contamination due to radio noise or interference
> Es: Contamination due to sporadic E opening
>
> ----------------------------------------
> Hiroshi Ogawa (University of Tsukuba, JAPAN)
> mailto: HZH02257@nifty.ne.jp
> Radio Meteor Obs. http://homepage2.nifty.com/~baron/
>
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