Database: Wind Shock Analysis
Event ID: 20020491905
Observation time: 02/18/2002 49.79582 1905 [UT]
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General
Information (About, Top)
Year |
2002 |
Fractional day of year |
49.795816 |
Arrival time of shock [seconds of day] |
68758.5 ± 20.0 |
Shock type |
SF |
Electron data availability |
0 |
X GSE location of spacecraft [Re] |
-9.425 |
Y GSE location of spacecraft [Re] |
-285.095 |
Z GSE location of spacecraft [Re] |
10.000 |
Upstream plasma points selected for analysis |
0008 |
Upstream field points selected for analysis |
0254 |
Downstream plasma points selected for analysis |
0009
|
Downstream field points selected for analysis |
0298 |
Minimum chisq/dof for RH8,RH9,RH10 |
6.79, 9.64, 10.22 |
Event added to database
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Mon Feb 14 11:18:01 2005
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Event last processed
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Mon Mar 30 22:41:14 2009
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Method selected
|
MX3
|
Propagation delay to Earth [minutes]
|
36.034 ± 11.355
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Asymptotic
plasma
parameters (About, Top)
Parameter
|
Upstream
|
Downstream
|
Vx GSE [km/s] |
-364.5 ± 1.8 |
-375.1 ± 1.6 |
Vy GSE [km/s] |
13.9 ± 2.4 |
19.7 ± 3.6 |
Vz GSE [km/s] |
-24.5 ± 1.8 |
-31.7 ± 2.0 |
Wi [km/s] |
20.1 ± 0.8 |
26.7 ± 1.1 |
We [km/s] |
635.5 ± 24.5 |
843.7 ± 36.0 |
Ni [n/cc] |
6.2 ± 0.5 |
19.6 ± 1.4 |
Bx GSE [nT] |
-6.8 ± 0.2 |
-3.9 ± 0.4 |
By GSE [nT] |
-4.3 ± 0.2 |
1.8 ± 1.6 |
Bz GSE [nT] |
-6.3 ± 0.3 |
-6.0 ± 0.5 |
Plasma Beta
|
0.050 ± 0.049
|
0.518 ± 0.548
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Sound Speed [km/s]
|
25.94 ± 1.00
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34.44 ± 1.47
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Alfven Speed [km/s]
|
90.03 ± 4.23
|
37.37 ± 2.32
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Best values of
shock
front normal for each method (About, Top)
Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
MC |
-0.504 ± 0.090 |
0.270 ± 0.081 |
-0.821 ± 0.550 |
-55.14 ± 6.51 |
151.76 ± 7.80 |
VC |
-0.781 ± 0.145 |
0.382 ± 0.251 |
-0.494 ± 0.449 |
-29.62 ± 10.20 |
153.92 ± 18.21 |
MX1 |
-0.801 ± 0.155 |
0.401 ± 0.118 |
-0.444 ± 0.412 |
-26.37 ± 21.32 |
153.38 ± 6.54 |
MX2 |
-0.743 ± 0.465 |
0.405 ± 0.495 |
-0.533 ± 0.476 |
-32.23 ± 48.47 |
151.42 ± 34.36 |
MX3 |
-0.754 ± 0.102 |
0.385 ± 0.102 |
-0.532 ± 0.475 |
-32.14 ± 10.97 |
152.99 ± 6.89 |
RH08 |
-0.740 ± 0.016 |
0.308 ± 0.010 |
0.598 ± 0.514 |
36.71 ± 1.69 |
157.44 ± 0.52 |
RH09 |
-0.699 ± 0.048 |
0.290 ± 0.054 |
0.654 ± 0.539 |
40.82 ± 4.15 |
157.44 ± 4.13 |
RH10 |
-0.713 ± 0.049 |
0.282 ± 0.059 |
0.642 ± 0.535 |
39.98 ± 4.15 |
158.44 ± 4.58 |
Average |
-0.717 |
0.340 |
-0.116 |
-7.249 |
154.597 |
Median |
-0.740 |
0.382 |
-0.444 |
-26.367 |
153.918 |
Deviation |
0.092 |
0.058 |
0.629 |
39.417 |
2.767 |
Key shock
parameters (About, Top)
Method |
ThetaBn |
Shock Speed |
Compression |
MC |
43.5 ± 1.2 |
225.7 ± 2.9 |
3.24 ± 0.36 |
VC |
48.6 ± 1.2 |
322.1 ± 3.0 |
3.24 ± 0.36 |
MX1 |
50.5 ± 1.2 |
328.7 ± 3.1 |
3.24 ± 0.36 |
MX2 |
49.4 ± 1.1 |
309.6 ± 3.1 |
3.24 ± 0.36 |
MX3 |
48.2 ± 1.1 |
313.4 ± 3.0 |
3.24 ± 0.36 |
RH08 |
89.7 ± 1.7 |
268.0 ± 2.8 |
3.24 ± 0.36 |
RH09 |
86.5 ± 1.7 |
249.7 ± 2.8 |
3.24 ± 0.36 |
RH10 |
87.7 ± 1.7 |
255.2 ± 2.8 |
3.24 ± 0.36 |
Average |
63.0 |
284.0 |
3.24 |
Median |
50.5 |
309.6 |
3.24 |
Deviation |
20.8 |
39.0 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
MC |
18.2 ± 2.0 |
18.4 ± 0.6 |
65.3 ± 3.1 |
91.9 ± 4.0 |
0.99 ± 0.13 |
0.20 ± 0.02 |
VC |
20.1 ± 2.2 |
16.8 ± 0.6 |
59.6 ± 2.8 |
92.2 ± 4.0 |
1.20 ± 0.15 |
0.22 ± 0.02 |
MX1 |
20.2 ± 2.3 |
16.1 ± 0.6 |
57.3 ± 2.7 |
92.3 ± 4.0 |
1.26 ± 0.15 |
0.22 ± 0.02 |
MX2 |
20.1 ± 2.2 |
16.5 ± 0.6 |
58.6 ± 2.8 |
92.2 ± 4.0 |
1.22 ± 0.15 |
0.22 ± 0.02 |
MX3 |
20.1 ± 2.2 |
16.9 ± 0.6 |
60.0 ± 2.8 |
92.2 ± 4.0 |
1.19 ± 0.15 |
0.22 ± 0.02 |
RH8 |
8.6 ± 2.3 |
0.2 ± 0.0 |
0.5 ± 0.0 |
93.7 ± 3.8 |
56.07 ± 13.71 |
0.09 ± 0.03 |
RH9 |
6.9 ± 2.2 |
1.5 ± 0.0 |
5.5 ± 0.3 |
93.7 ± 3.8 |
4.56 ± 1.37 |
0.07 ± 0.03 |
RH10 |
7.3 ± 2.2 |
1.0 ± 0.0 |
3.7 ± 0.2 |
93.7 ± 3.8 |
7.08 ± 2.02 |
0.08 ± 0.03 |
Average |
15.2 |
10.9 |
38.8 |
92.7 |
9.2 |
0.2 |
Median |
20.1 |
16.5 |
58.6 |
92.3 |
1.3 |
0.2 |
Deviation |
6.3 |
8.3 |
29.6 |
0.8 |
19.1 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
MC |
5.4 ± 2.3 |
19.9 ± 0.5 |
27.1 ± 1.7 |
46.8 ± 1.4 |
0.27 ± 0.11 |
0.12 ± 0.05 |
VC |
6.0 ± 2.3 |
17.8 ± 0.4 |
24.7 ± 1.5 |
47.6 ± 1.4 |
0.34 ± 0.13 |
0.13 ± 0.05 |
MX1 |
6.2 ± 2.3 |
17.0 ± 0.4 |
23.8 ± 1.5 |
47.9 ± 1.5 |
0.36 ± 0.13 |
0.13 ± 0.05 |
MX2 |
6.1 ± 2.4 |
17.5 ± 0.4 |
24.3 ± 1.5 |
47.8 ± 1.4 |
0.35 ± 0.13 |
0.13 ± 0.05 |
MX3 |
6.0 ± 2.4 |
18.0 ± 0.4 |
24.9 ± 1.5 |
47.6 ± 1.4 |
0.33 ± 0.13 |
0.13 ± 0.05 |
RH8 |
3.2 ± 1.8 |
0.2 ± 0.0 |
0.2 ± 0.0 |
50.9 ± 1.5 |
20.50 ± 11.57 |
0.06 ± 0.03 |
RH9 |
2.5 ± 1.8 |
1.5 ± 0.0 |
2.3 ± 0.1 |
50.8 ± 1.5 |
1.62 ± 1.15 |
0.05 ± 0.03 |
RH10 |
2.6 ± 1.8 |
1.0 ± 0.0 |
1.5 ± 0.1 |
50.9 ± 1.5 |
2.54 ± 1.70 |
0.05 ± 0.03 |
Average |
4.8 |
11.6 |
16.1 |
48.8 |
3.3 |
0.1 |
Median |
6.0 |
17.5 |
24.3 |
47.9 |
0.4 |
0.1 |
Deviation |
1.7 |
8.9 |
12.3 |
1.7 |
7.0 |
0.0 |
Survey interval (About, Top)
Selected
data (About, Top)
Key plasma parameters
|
Velocity
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Magnetic Field
|
Simple
Methods
(About, Top)
Rankine Chi^2
Contour (About, Top)
Shock
Speed (About, Top)
Theta Bn (About, Top)
Mach Numbers (About, Top)
Page updated Fri Jun 13 11:06:02 2014
Michael L Stevens
(mstevens@cfa.harvard.edu)
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