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(meteorobs) NAMN Report HALWA 1999 JUN 21/22
NAMN METEOR REPORT
DATE 1999 JUN 21/22
Time (UT) Start 0535 UT End 0805 UT
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 plotted; 45 seconds per meteor
TIME CALCULATIONS
TOTAL TIME 2:10
Break Time None
Dead Time 0:11
Net Time 1:59
-----------------
Teff 1.98 Hours
SKY OBSCURED- None
OBSERVED SHOWERS-Radiant diameters for plotting
as defined in IMO Handbook
IMO Current Showers
Shwr RA Dec
SAG 277 -23
OLD IMO Showers
TOP 275 -20 (reported as SAG)
LSA 268 -25 (reported as SAG)
CSC 263 -16 (reported as SAG, after activity period)
JLY 283 +35 (reported as JLY, after activity Period)
DMS Showers
Oph 283 -12 (reported as SAG)
Sag 272 -26 (reported as SAG)
Ari 054 +31 (Daytime shower)
tAq 334 -15 (after activity period)
Cet 019 -14 (after activity period?)
AntiHelion
286 -23
METEORS OBSERVED
Time FOV Teff F LM SAG JLY SPO
0555-0700 289 +18 1.01 1.00 +5.54 0 0 5
0700-0805 304 +17 0.97 1.00 +5.59 0 0 10
----------------------------------------------
0555-0805 Az190,Ev65 1.98 1.00 +5.56 0 0 15
MAGNITUDE DISTRIBUTIONS
Mag -2 -1 0 +1 +2 +3 +4 +5 Avg
------------------------------------------
SPO 1 0.5 1.5 3 2 0 5.5 1.5 +2.27
LIMITING MAGNITUDE
LM Summary
Time LM
0600 +5.40
0630 +5.50
0700 +5.73
0730 +5.60
0800 +5.43
LM Data
Time Area Cnt LM Time Area Cnt LM Time Area Cnt LM
---------------------------------------------------
0600 13 5 5.5 0630 13 9 5.6 0700 13 11 6.0
0600 5 6 5.3 0630 5 5+ 5.2 0700 5 6 5.3
0600 A C L.M 0630 14 11 5.7 0700 14 12 5.9
---------------------------------------------------
0730 13 9 5.6 0800 13 8 5.5
0730 5 6 5.3 0800 5 5 5.2
0730 14 12 5.9 0800 14 10 5.6
---------------------------------
METEOR DATA
Num Time Mag Spd Train Shwr Map Acc Notes
1 0606 0 2 1.5s SPO 9 1
2 0615 +4 3 - SPO 6 1
3 0644 +4 4 - SPO 6 1
4 0649 +5 3 - SPO 6 1
5 0659 +4.5 3 - SPO 6 1
----------------------------------
6 0703 +4 3 - SPO 6 1
7 0707 +1 1 - SPO 9 1 Meteor Fragmented
8 0711 +2 3 - SPO 6 1
9 0714 +1 5 - SPO 3 1
10 0716 +2 1 - SPO 3 1
11 0727 +4 3 - SPO 6 1
12 0730 +1 2 - SPO 6 1
13 0740 -2 4 2.0s SPO 6 1
14 0745 -0.5 4 Wk SPO 3 1
15 0748 +4 3 - SPO 6 1
----------------------------------
Session ended 0805-approaching twilight
SESSION NOTES
General Notes
1. All Times UT
2. Speed 1=very slow 2=slow 3=Medium 4=fast 5=very fast
3. Train is measured in seconds; Wk=Wake (<0.5sec)
4. Plot Accuracy 1=very accurate 2=medium 3=poor
5. In notes Column, 3 or 4 letter codes are for Non-IMO associations.
These include Old IMO showers, ALPO, DMS, Cook, and Kronk lists.
6. Approximate Center time Solar Longitude 90.46
7. SAG radiant elevation Period 1 : 24d ; Period 2 : 20d
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