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(meteorobs) NAMN Meteor Report: Nov 16/17(Assmus)
Here are the full results of my observations on Non 16/17, 1996 during
the peak night of this year's LEONIDs. I have previously calculated ZHRs
and they have appeared in a separate post. Also, I modified somewhat the
NAMN e,mail report form. (no speed estimates nor plotting was done. Hope
that's ok with you Mark.) Included instead are a column for noted color and
whether the meteor seen had a wake or a persistent train (pt). If a
persistent train was noted, the duration in seconds is given.
***************************
NAMN VISUAL SUMMARY REPORT
***************************
DATE: Nov 16/17 BEGIN: 0645 UT END: 1330 UT
OBSERVER: Assmus, Joseph
LOCATION: Long: 116o38'13" W ; Lat: 32o50'00" N
City & State: Descanso, CA (George Zay Observatory)
Elevation: 1003m
RECORDIN METHOD: Manual
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OBSERVED SHOWERS: 3-letter code; radiant position
LEO 150o +20o
NTA 63o +23o
STA 61o +16o
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OBSERVING PERIODS: 0 = none seen; / = shower not watched.
PERIOD(UT) FIELD Teff F LM LEO NTA STA SPO Tot
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0645-0800 55/+20 1.20 1.00 6.3 2 3 1 7 13
0800-0900 74/+20 0.94 1.00 6.1 15 3 1 3 22
0900-1000 88/+20 0.95 1.00 6.1 12 0 0 7 19
1145-1245 130/+20 0.93 1.00 6.0 18 5 0 2 25
1245-1330 145/+20 0.70 1.00 6.0 13 0 0 5 28
Total 4.72 6.12 60 11 2 24 97
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MAGNITUDE DISTRIBUTIONS:
SHOWER -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 TOTAL
LEO - - - - 2 5 2 12 6 15 8 8 2 - 60
NTA - - - - - - - 1 - 5 5 - - - 11
STA - - - - - - - - - - - - 2 - 2
SPO - - - - - - - - 5 1 9 6 3 - 24
TOT - - - - 2 5 2 13 11 21 22 14 7 - 97
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Mean Magnitude for Shower Members and Sporadics:
Leonids = 1.4
N. Taurids = 2.27
S. Taurids = 5.00
Sporadics = 3.04
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SKY OBSCURED:
___0__% _____%
FROM: 0645 UT FROM: UT
TO: 1330 UT TO: UT
Note: partial cover (~15%) by high cirrus for 1 hr or so, reduced LMs
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DEAD TIME: 0.0
BREAKS: 90 min sleep from 1000-1330 UT
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LIMITING MAGNITUDE:
STAR STAR
TIME AREA COUNT LM
0645 8 16 6.3
0730 8 15 6.2
0745 8 16 6.3
0815 8 12 6.1
0915 8 12 6.1
1000 8 12 6.1
-Break-
1145 8 11 6.0
1245 8 11 6.0
MEAN LIMITING MAGNITUDE: 6.12
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METEOR RAW DATA: NOTE: [pt=persistent train (duration in sec)]
# TIME(UT) MAG COLOR SHOWER WAKE REMARKS
--+--------+-------+------+---------+-----------+-----------------
1 0646 4 wht SPO n
2 0648 2 wht SPO y
3 0700 1 yel SPO pt(2s)
4 0704 3 wht NTA y
5 0705 4 wht SPO n
6 0707 -2 orng LEO pt(4s) trav'd 160 deg in 5 sec!!
7 0719 3 wht NTA n
8 0720 5 wht SPO n
9 0724 5 wht SPO n
10 0726 3 wht NTA n
11 0740 3 wht SPO n
12 0745 -2 wht LEO y
13 0800 5 wht STA n
14 0803 4 wht LEO y
15 0812 4 wht LEO n
16 0815 0 wht LEO y
17 0816 4 wht LEO n
18 0820 3 wht NTA n
19 0823 4 wht LEO n
20 0826 0 wht LEO y
21 0828 3 wht SPO n
22 0829 0 O-Y LEO pt(3s)
23 0831 -1 O-Y LEO pt(5s) terminal burst
24 0837 -3 wht LEO pt(1s)
25 0838 5 wht STA n
26 0840 4 wht SPO n
27 0840 3 wht LEO y
28 0841 3 wht NTA n
29 0842 2 wht LEO y
30 0843 2 wht NTA pt(3s)
31 0844 1 wht LEO n
32 0852 0 wht LEO pt(2s)
33 0855 3 wht LEO n
34 0856 1 wht LEO y
35 0858 5 wht SPO n
36 0905 4 wht SPO n
37 0907 3 wht LEO n
38 0910 3 wht LEO y
39 0921 1 wht SPO pt(2s)
40 0924 1 wht SPO n
41 0925 0 orng LEO pt(5s)
42 0927 4 wht SPO n
43 0930 -2 blue LEO pt(4s) double terminal burst
44 0931 0 blue LEO y
45 0936 3 wht SPO y
46 0938 -2 wht LEO pt(5s) terminal burst
47 0939 0 wht LEO pt(3s)
48 0943 2 wht LEO y
49 0943 2 wht LEO n
50 0945 4 wht LEO n
51 0947 -1 wht LEO pt(3s)
52 0952 3 wht SPO n
53 0954 4 wht SPO
54 0957 4 wht LEO
----- 1000-1145 UT: Unscheduled Sleep Break (#$@%#^%$!) -----
55 1150 2 wht LEO n
56 1200 2 wht LEO y
57 1206 2 wht LEO n
58 1207 0 wht NTA n
59 1207 2 wht LEO y
60 1208 3 wht LEO n
61 1212 0 wht LEO y
62 1214 3 wht SPO n
63 1215 2 wht NTA n
64 1216 0 wht LEO y
65 1217 -3 blue LEO pt(7s) big terminal burst
66 1218 1 wht LEO n
67 1220 2 wht LEO pt(3s)
68 1224 2 wht LEO n
69 1225 2 wht LEO n
70 1226 4 wht LEO n
71 1228 2 wht NTA n
72 1229 2 wht NTA n
73 1230 2 wht LEO n
74 1230 1 wht SPO n
75 1231 2 wht LEO n
76 1232 5 wht LEO n
77 1234 2 wht NTA n
78 1240 4 wht LEO n
79 1243 2 wht LEO n
80 1249 1 wht LEO y
81 1250 5 wht LEO n
82 1253 1 wht LEO y
83 1254 2 wht LEO n
84 1255 3 wht SPO n
85 1258 3 wht LEO y
86 1259 1 wht LEO y
87 1300 1 wht SPO n
88 1303 3 wht SPO y
89 1304 2 wht LEO n
90 1307 3 wht LEO n
91 1311 3 wht SPO n
92 1312 0 grn LEO pt(3s)
93 1314 -2 blue LEO pt(8s)
94 1319 0 blue LEO pt(2s)
95 1322 3 wht SPO n
96 1323 3 wht LEO n
97 1325 0 wht LEO n
--------------------------------------------------------------------
WAKE (or PT) by MAGNITUDE TABLE (Leonid Only)
Wake or Persistent Train
NO YES
-----------------------
-3 | 0 2
|
-2 | 0 5
|
-1 | 0 2
|
0 | 1 11
|
MAGNITUDE 1 | 1 5
|
2 | 10 5
|
3 | 5 3
|
4 | 7 1
|
5 | 2 0
-----------------------
26 34
(43%) (57%)
I calculated a Spearman Rank Corr Coeff (no distributional assumptions)
between the magnitude and wake/pt.
Spearman r = - 0.65066
At least for the Leonids, there is sig relation between apparent brightness
of a meteor and whether or not you see a wake or pt. In Lovell's book
"Meteor Astronomy" he discusses this, so I thought I go ahead see what my
data show.
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<END OF REPORT>