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(meteorobs) Florida Leonid Summary, 16/17 Nov 1999, GRALE



LARGEEYES@aol.com asked:
>Call me uninformed, but why are everyone's observations so much
>different from the rates listed on http://www.leonidslive.com??
>They said observers are already reporting 20 Leonid meteors and 
>hour and the USAF and U of Western Ontario have a 67 mhr rate...

For one thing, I believe the 67 mhr must be an intensified VIDEO
rate. I am part of the USAF/NASA/UWO team which is observing from
South Florida. (I am the one and only, very lonely visual observer
on the FL team...) My Leonid rates last night for the 5 full-hour
periods I observed from Long Key, FL were:

16/17 Nov 1999, GRALE
Times    LEOs   Avg Mag  LM
05-06UT  3      1.8      7.0
06-07UT  11     3.3      7.3
07-08UT  18     4.0      7.4
08-09UT  23     3.8      7.5
09-10UT  28     3.4      7.5

F-factor all periods EXCEPT first was 1.0. F for 05-06UT much worse!

Last hour included one -3 terminal-burst fireball: average mag excl-
uding that was closer to 3.6. Sporadic data not transcribed as yet,
but general impression was that Spo rates and magnitudes were mostly
similar to previous night's data, as reported. I also noted unusual
AMO activity during the 06-07UT hour - 2 or 3 times what I expected!

No time to fully transcribe my data today, as I *may* be moving to
outrun cloudcover tonight... Could this be a repeat of last year?

PS: THANKS to the able middle-of-the-night weather advice from our
own Norm MacLeod and Wayne Hally - it did clear for me, guys! :)

Clear skies to all!
Lew Gramer


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