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(meteorobs) Re:1996 Leonid data: color, mags, trains

   1996 Leonid color table -- Norman McLeod

mag..Y..B..O.WB.BG.YO.total..total...%
...........................................color..Leo...color
-8................1............1...........2......2......100.
-6...........1.........2...................3......3......100.
-5...........1...1.........................2......2......100.
-4...........1...1.........................2......2......100.
-3.......2.......3.........................5......5......100.
-2.......2..2.........2...................6......6......100.
-1.......8.......1.................1....10....10.....100.
.0.....13..2...4....1......1........21.....21.....100.
.1.....12..6...3......................21.....21......100.
.2.......3..2....2........................7.....22.....31.8
.3............................................0.....21......0.0
.T.....40.15.16...5.....2...1...79....126...----
 
% of colored: yellow 50.6, blue 19.0, orange 20.3,
white-blue 6.3, blue-green 2.5, yellow-orange 1.3



   1996 Leonid magnitudes
   LM7.3 sky only

-8.....2
-6.....3
-5.....2
-4.....2
-3.....5
-2.....6
-1.....9
.0....21
.1....20
.2....21
.3....20
.4.....7
.5.....3
.6.....1
total 122 Leonids with average mag 0.68


   1996 Leonid fireballs

.UT..color..mag..dur/train 
.616...O.......-3........3
.656...O.......-3......15
.659..WB.....-6......25
.710...Y........-3.......3
.731...O.......-5......15
.801...O.......-3........6
.811...O.......-8....180
.819..WB.....-6......60
.846...O.......-4......15
.903...B.......-4......20
.948..BG.....-8......10
.955...B.......-6....300
1027...B......-5......30
1039...Y......-3........2


  1996 Leonid trains -- LM7.3 sky only

....<.......durations.......................>.tot..tot....%....avg
.m..10.15.20.25.30.60.180.300..tr..Leo...tr.....dur
-8.....1..................................1...........2....2..100...95.0     
-6......................1.........1..............1...3....3..100...128.
-5...........1..............1.........................2....2..100...22.5
-4...........1....1...................................2....2..100...70.0


....<.......durations...........>.tot..tot....%....avg
.m...1..2..3..4..5..6..10..15..tr..Leo...tr....dur
-3.........1..2..........1..........1...5....5..100....5.8
-2....2..3...1...........................6....6..100....1.8
-1....1..3...5...........................9....9..100....2.4
.0.....3..7..7..1.....................18...21..86.7...2.3

.1.....4.12..2.....1.................19...20..95.0...2.1
.2.....5.13..2........................20...21..95.2...1.9
.3.....9..3..............................12...20..60.0...1.3
.4.....4.....................................4.....7..57.1...1.0
.5............................................0.....3...0.0.....0.0

Above are all my Leonid data tables.  In an attempt to force the font
Courier New to keep the columns aligned I filled in all blank spaces with
periods.  It has been frustrating to not be able to do tables neatly.  I
personally find the above quite easy to read.  

The train duration table is split into two parts since I'm not sure how long
a line can be before it wraps.  Will include a little test to find out at
the end of this note.

4th-mag meteors have a few trains for me.  The Leonids did very well with
these.  Needless to say, the darkest skies are needed to see them.  I do
have a small handful of trains from 5th-mag meteors; these fit the rare
category.  There was one time I recall in the early 70's being reasonably
sure of a train from a 6th-mag Orionid.  Telescopic meteors have some trains
also; so the faintest limit can go a ways down.

Thinking about Lew's color-correction idea, I wonder what you would correct
them to?  A sizable minority of observers see either no color at all or only
a handful of subtle colors.  Joan seldom sees a color even when I find it
vivid.  Some see a moderate amount of color, usually losing it at greater
DCV's.  I am among the fortunate, seeing meteors in living color, and a
majority with airplane-light intensity.  Joan keeps thinking her
inexperience is denying her the colors, but (bad news here) I saw strong
colors right from the beginning.  Did anyone out there not see color at
first, then develop the ability with experience?  I think color correcting
is whistling Dixie, or in more earthy terms, pissing in the wind.

Norman McLeod
Fort Myers, Florida



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Well, copying this over from Notebook didn't retain any font or spacing.
Will adjust it some more before sending.