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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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