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(meteorobs) Eta-Aquarids in Japan : visual observation results



Eta-Aquarids 2001 prompt report
Visual result in Japan (The Nippon Meteor Society).

ZHR has been computed with: 
-  gamma = 1.0 (correction of Radiant elevation)
-  r = 2.7  (IMO, "2001 Meteor Shower Calendar")
-  excluding:observations under unfavourable condition
   (T<30m, Lm<4.5mag, Cl>0.4, RP-h<10deg)
-  Err. : ZHR * 1/SQRT(#ETA)

----------------------------------------------------------------
Time[UT]    SunL   Obs  T.eff  #ETA   ZHR   Err.  (HR)   Remarks
----------------------------------------------------------------
Apr.-May 2001
27d 18:00   37.522   6   5.83    15    17     4  (  3)
28d 18:00   38.494   2   1.50     2    26    18  (  1)
29d 18:00   39.466   0    -       -     -     -  (  -)
30d 18:00   40.437   3   3.00    28    28     5  (  9)
01d 18:00   41.407   0    -       -     -     -  (  -)
02d 18:00   42.377   1   0.92     2    36    25  (  2)
03d 18:00   43.347   6   4.50    38    40     6  (  8)
04d 18:00   44.316   3   2.67    31    53    10  ( 12)
05d 18:00   45.286   1   1.00    11   123    37  ( 11)
06d 18:00   46.252   1   1.00     2    45    32  (  2)
----------------------------------------------------------------

Observers ( 8members):
Seiji AKAGI, Takema HASHIMOTO, Hiroyuki KODAMA, Katsuhiko MAMETA, 
Yukihisa MATSUMOTO, Minoru MURAKI, Kazuhiro OSADA, Kazuhiro SUMIE

Total observations          :  1,225 min. (= 20.42h)
Total number of ETA meteors :    129

See more details showing at : 
     http://www.nms.gr.jp/en/index.html
     http://www.nms.gr.jp/nmsnews_e.html
     http://www.nms.gr.jp/eta0101.gif

*==-- *==-- *==-- *==-- *==-- *==-- *==--
Masaaki TAKANASHI    (Gotemba-City,JAPAN)
               e-mail:takanashi@nms.gr.jp
--==* --==* --==* --==* --==* --==* --==*
The Nippon Meteor Socitey (NMS)
                 http://www.nms.gr.jp/en/
*==-- *==-- *==-- *==-- *==-- *==-- *==--

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