The 73rd AMOTA Meeting

As the first meeting in the 21st century, the 73rd AMOTA General Meeting was held on 11th March, 2001 at the NOMYC (National Olympic Memorial Youth Center) in Tokyo, Japan.
On the same 11th, the famous planetarium facility in Tokyo named Goto Planetarium located near the NOMYC demonstrated the final projection for closing, so that rather little members(25)took part in the above Meeting in which below subjects were presented and discussed.

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1. Summary Reports of Coma Berenicids 2001 Based on the Domestic Data
By Mr. Kanryu SERIZAWA

The weak activity had been observed from the end of December to the end of January. The clear peak was not obtained.The collecting method to compare the numbers of the shower meteor to the sporadic background was suggested by the participants.

2. Summary Reports of Quadrantids 2001 by the Group in SUT
By Ms. Akika ISHIHARA

The Quadrantids 2001 activity observed by the astronomical group in the Science University of Tokyo at the Mikado Observatory was presented. The rights and wrongs of the meaning technique was also discussed.

3. The Guidance for Lyrids and eta Aquarids 2001
By Mr. Kouji NANIWADA

4. The Prediction of the Shower associated with 73P/Shwassman-Wachmann 3
By Mr. Takema HASHIMOTO

The Earth will close to the orbit of the mentioned comet in the end of May in this year.The related shower radiated from Boot was observed in the past as the rather strong activity with faint meteors in 1930 and 1970 in Japan.

5. The Observational Tour for Leonids 2001
By Mr. Yoshikazu WATANABE

To escape the bad weather condition in November, the tour to observe Leonids in the Pacific Ocean near the Ogasawara Islands is being planned.The first announcement by the OAA was introduced.

6. The Comparison among the Factor Used to Correct the Elevation of the Radiant Point
By Mr. Masafumi SUZUKI

For the above correction, the factor called as Fb indicated from the below formula(1)different from the IMO's(2)had been used in Japan from 1988. Owing to the anxiety of the overcorrection by(1), NMS has tried to use the revised formula(3)from 1998.
The problem, the origin and the required elements were discussed. 
        sin^1.5(h)                 (1)
        sin(h)                     (2)
        sin^1.5(h+5*cos^2(h))      (3)
        h:elevation of the radiant point(degree)

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