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(meteorobs) Late ORI Report



Here's my only ORI report of the year.
Will send to Mark, Bob, and Rainer direct under separate cover with 
attached .txt file
Coming up, the 5 new observer's reports from the NJAA Meteor Party.

Wayne


NAMN METEOR REPORT

DATE 2001 OCT 20/21
Time (UT) Start 0430 End 1000     (Sol Long 207.828 to 208.056)
OBSERVER: Wayne T Hally (HALWA)
LOCATION: NJAA OBSERVATORY, HIGH BRIDGE, NJ USA (25186)
COORDINATES: 74d 53' 54" West   40d 40' 52" North
ELEVATION: 830 feet (253 Meters)

Recording Method- Tape recorder
All meteors Counted only- no Dead Time

TIME CALCULATIONS

TOTAL TIME  5:30
Break Time  0:30 0610-0618;0738-0800
Dead  Time  0:00
Net   Time  5:00
-----------------
Teff  Hours  5.00

SKY OBSCURED- none

OBSERVED SHOWERS Radiant Diameters per IMO Handbook
----------------
IMO Showers
Shr  RA  Dec
---------------
ORI 095 +16
EGE 100 +27
NTA 039 +17
STA 040 +11

METEORS OBSERVED (Separated into 1 hour periods, early and late, and total)
Time        FOV    Teff  F  LM    ORI EGE NTA STA SPO  Total
0430-0530 054 +18 1.00 1.00 5.30   2   1   0   0   2     5
0530-0630 062 +21 0.87 1.00 5.38   2   1   1   0   3     7
0630-0738 062 +21 1.13 1.00 5.35   3   0   2   2   3     10
0800-0900 077 +14 1.00 1.00 5.35   2   0   0   0   2     4
0900-1000 077 +14 1.00 1.00 5.30   6   1   0   0   1     8
------------------------------------------------------------
EARLY and LATE
0430-0830 064 +19 3.50 1.00 5.35   7   2   3   2   8     22
0830-1000 077 +14 1.50 1.00 5.32   8   1   0   0   3     12
------------------------------------------------------------
TOTAL
0430-1000         5.00 1.00 5.33   15  3   3   2   11    34

Early Az/ALt 150@60  Late Az/Alt 195@60

MAGNITUDE DISTRIBUTIONS (NTA snd STA combined into TAU)
(See higher temporal resolution of ORI magnitudes in note 6 below)
MAG  -4   -3   -2   -1    0   +1   +2   +3   +4   +5   Num  Avg Mag
------------------------------------------------------------------
ORI   -    1    -    -   1.5   2    1    3   6.5   -    15   +2.73
EGE   -    -    -    -    -    -    -   1.5  1.5   -     3   +3.5
TAU   -    -    -    -    -    1    2    1   0.5  0.5    5   +2.5
SPO   -    -    -   0.5   3   0.5   1    1   3.5  1.5   11   +2.41
------------------------------------------------------------------
TOT   -    1    -   0.5  4.5  3.5   4   6.5   12   2    34

LIMITING MAGNITUDE
LM Summary
Time        LM   Time        LM
0430-0500 +5.25  0730-0800 +5.35
0500-0530 +5.35  0800-0830 +5.35
0530-0600 +5.40  0830-0900 +5.35
0600-0630 +5.35  0900-0930 +5.35
0630-0700 +5.35  0930-1000 +5.25
0700-0730 +5.35

LM Data (Z= area at Zenith, F= area near center of FOV)
Time Area Cnt  LM    Time Area Cnt  LM   Time Area Cnt  LM
0430  17   9   5.2   0430  2    6  5.2
0500  17   9-  5.3   0500  2    6  5.2
0530  17   9+  5.4   0530  2    7  5.5   0530   8   8   5.3
0600  17   9+  5.4   0600  2    8  5.6   0600   8  9F   5.4
0630  17  10   5.5   0630  2Z   7  5.5   0630   8  9F   5.4
0700  17   M   X.X   0700  2    8  5.6   0700   8  10   5.5
0730  17   9+  5.4   0730  X    X  X.X   0730   8   9   5.4
0800  17   9   5.3   0800  X    X  X.X   0800   8  10   5.5
0830  17   9   5.3   0830  X    X  X.X   0830   8   9   5.4
0900  17  10   5.5   0900  X    X  X.X   0900   8  10   5.5
0930  17   9   5.4   0930  X    X  X.X   0930   8  10   5.5
1000  17   9   5.2   1000  X    X  X.X   1000   8   9   5.3

LM Data (Z= area at Zenith, F= area near center of FOV)
Time Area LM   Time Area Cnt  LM   Time Area Cnt  LM
0430 AVG  5.2
0500 AVG  5.3
0530 AVG  5.4
0600 AVG  5.4  0600   4   6  5.2
0630 AVG  5.3  0630   4   5  5.0  0630   22   8  5.1
0700 AVG  5.4  0700   4   6  5.1  0700   22   8+ 5.4
0730 AVG  5.3  0730   4   6  5.2  0730   22   8  5.2
0800 AVG  5.4  0800   4   6  5.2  0800   22   8  5.2
0830 AVG  5.3  0830   4   7  5.3  0830   22   8  5.2
0900 AVG  5.4  0900   4   7  5.3  0900   22   8+ 5.3
0930 AVG  5.3  0930   4   6  5.2  0930   22   8  5.1
1000 AVG  5.2  1000   4   6  5.1

METEOR DATA
Num Time Mag Spd Train  Shwr Notes
-----------------------------0430
1  0440 +4.5  15    -    SPO
2  0450 +2.5  20    -    ORI
3  0451   0   15    -    SPO  Multiple Observers  BLUE
4  0502  +4   20    -    EGE  Multiple Observers
5  0503  +3   20    -    ORI  Multiple Observers
?  05:12:52  See Notes
-----------------------------0530
6  0530 +1.5  12    -    ORI  CTR  Multiple Observers
7  0535 +0.5  25   Wk    SPO
8  0535 +3.5  15    -    EGE
9  0536  +4   18    -    ORI
10 0538 +4.5  10    -    SPO
11 0540  +2   10    -    NTA
Break 0610-0618
12 0619 +4.5  15    -    SPO
-----------------------------0630
13 0634 +4.5   8    -    STA
14 0639  +4   20    -    ORI
15 0648  +2   12    -    NTA  Multiple Observers
16 0657  +4   15    -    SPO  In GEM
17 0710  +1   15    -    ORI
18 0717  +4   15    -    SPO
19 0720 +3.5  15    -    ORI
20 0736  +3   10    -    NTA
21 0737  +3   MM    -    SPO
22 0738  +1   10    -    STA
---------------------------------0738
Break 0738-0800
---------------------------------0800
23 0830   0   30    -    SPO
24 0833  +2   15    -    SPO
25 0835  +4   15    -    ORI  CTR
26 0851  +4   20    -    ORI
------------------------------0900
27 0906 -0.5  12    -    SPO
28 0914 +3.5  18    -    ORI
29 0915  +4   15    -    ORI
30 0921  +3   20    -    EGE
31 0926   0   20   Wk    ORI  Short
32 0930 +0.5  20   Wk    ORI
33 0943 +3.5  18    -    ORI  CTR
34 0949  -3   15   4.0   ORI  VCTR
------------------------------1000 SESSION ENDED

SESSION NOTES

General Notes
1. All Times UT
2. Speed In Degrees per Second. I have been using degrees per second for 
only about the last 20 hours Teff so I am still learning to make accurate 
estimates.
3. Train is measured in seconds; Wk=Wake (<0.5sec)
4. At 05:12:52 Bright flash observed along SE horizon, approx azimuth 140. 
If it was a fireball, Magnitude here ~ -6, absolute magnitude at least -12 
several hundered km off Maryland/Virginia coast. Horizon blocked to about 
10 degrees in that direction.
5. In notes Column, Color if noted, CTR=Close to Radiant; Multiple 
Observers= Several NJAA Observers Recorded this Meteor; this was the first 
annual NJAA Meteor Party with 2 experienced (HALWA and KILKE), and 5 
(Count'em!!) first time observers.
6. No meteors were observed between 0800 and 0830. This was confirmed by 
the other active observer at this time, Ray Schapp. Following this 1/2 hour 
gap, 4 more faint ORI's were observed in the next 0.9 h, then the last 0.6 
hour contained all the bright Orionids.
I don't know if this was a real phenomona, or a statistical artifact, but 
here's the detail.
-----------------------------------------
Mag Dist First 7 ORI (3.5 Teff) 0430-0830 1.5(+1), 1(+2), 2(+3), 2.5(+4) 
Avg +2.79
Mag Dist Last 8 ORI  (1.5 Teff) 0830-1000 1(-3), 1.5(0), 0.5(+1), 1(+3), 
4(+4) Avg +2.69
-----------------------------------------
Mag Dist First 11 ORI (4.33 Teff) 0430-0920 1.5(+1), 1(+2), 2.5(+3), 6(+4) 
Avg +3.14
Mag Dist Last 4 ORI (0.67 Teff) 0920-1000 1(-3), 1.5(0), 0.5(+1), 0.5(+3), 
0.5(+4) Avg +0.25
-----------------------------------------

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