Database: Wind Shock Analysis
Event ID: 19971001258
Observation time: 04/10/1997 100.54068 1258 [UT]
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![Wind spacecraft](../windsm.gif)
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General
Information (About, Top)
Year |
1997 |
Fractional day of year |
100.540677 |
Arrival time of shock [seconds of day] |
46714.5 ± 3.0 |
Shock type |
FF |
Electron data availability |
0 |
X GSE location of spacecraft [Re] |
230.000 |
Y GSE location of spacecraft [Re] |
8.140 |
Z GSE location of spacecraft [Re] |
21.219 |
Upstream plasma points selected for analysis |
0008 |
Upstream field points selected for analysis |
0244 |
Downstream plasma points selected for analysis |
0007
|
Downstream field points selected for analysis |
0227 |
Minimum chisq/dof for RH8,RH9,RH10 |
22.05, 26.81, 27.71 |
Event added to database
|
Mon Feb 14 11:04:21 2005
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Event last processed
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Mon Mar 30 16:48:31 2009
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Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
62.543 ± 4.213
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Asymptotic
plasma
parameters (About, Top)
Parameter
|
Upstream
|
Downstream
|
Vx GSE [km/s] |
-306.6 ± 1.0 |
-325.5 ± 1.4 |
Vy GSE [km/s] |
-10.5 ± 0.8 |
-3.2 ± 2.3 |
Vz GSE [km/s] |
4.3 ± 1.9 |
30.0 ± 2.3 |
Wi [km/s] |
27.0 ± 0.6 |
30.8 ± 0.5 |
We [km/s] |
852.3 ± 20.1 |
973.8 ± 16.8 |
Ni [n/cc] |
15.0 ± 0.4 |
22.4 ± 0.6 |
Bx GSE [nT] |
6.0 ± 0.4 |
8.6 ± 0.5 |
By GSE [nT] |
-2.2 ± 0.6 |
0.8 ± 0.8 |
Bz GSE [nT] |
5.6 ± 0.2 |
7.6 ± 0.3 |
Plasma Beta
|
0.319 ± 0.334
|
0.337 ± 0.326
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Sound Speed [km/s]
|
34.80 ± 0.82
|
39.76 ± 0.69
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Alfven Speed [km/s]
|
48.09 ± 3.12
|
53.15 ± 2.06
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Best values of
shock
front normal for each method (About, Top)
Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
MC |
-0.563 ± 0.347 |
0.687 ± 0.292 |
-0.460 ± 0.424 |
-27.36 ± 14.54 |
129.31 ± 28.28 |
VC |
-0.581 ± 0.050 |
0.224 ± 0.068 |
0.782 ± 0.560 |
51.47 ± 3.34 |
158.88 ± 6.53 |
MX1 |
-0.809 ± 0.143 |
0.308 ± 0.090 |
0.501 ± 0.454 |
30.08 ± 17.21 |
159.12 ± 5.11 |
MX2 |
-0.749 ± 0.103 |
0.209 ± 0.069 |
0.629 ± 0.529 |
38.98 ± 9.61 |
164.43 ± 4.84 |
MX3 |
-0.686 ± 0.068 |
0.111 ± 0.104 |
0.719 ± 0.558 |
46.01 ± 5.34 |
170.80 ± 8.66 |
RH08 |
-0.972 ± 0.002 |
-0.060 ± 0.013 |
0.229 ± 0.225 |
13.24 ± 0.49 |
183.51 ± 0.75 |
RH09 |
-0.987 ± 0.010 |
-0.061 ± 0.067 |
0.151 ± 0.150 |
8.68 ± 3.30 |
183.51 ± 3.87 |
RH10 |
-0.987 ± 0.010 |
-0.061 ± 0.068 |
0.151 ± 0.150 |
8.68 ± 3.53 |
183.51 ± 3.94 |
Average |
-0.791 |
0.170 |
0.338 |
21.222 |
166.634 |
Median |
-0.749 |
0.209 |
0.501 |
30.078 |
170.799 |
Deviation |
0.177 |
0.255 |
0.409 |
25.807 |
18.462 |
Key shock
parameters (About, Top)
Method |
ThetaBn |
Shock Speed |
Compression |
MC |
28.7 ± 3.4 |
174.6 ± 5.2 |
1.49 ± 0.06 |
VC |
87.5 ± 2.7 |
275.8 ± 11.0 |
1.49 ± 0.06 |
MX1 |
71.1 ± 2.7 |
336.8 ± 9.1 |
1.49 ± 0.06 |
MX2 |
80.1 ± 2.5 |
324.7 ± 9.8 |
1.49 ± 0.06 |
MX3 |
87.6 ± 2.3 |
308.4 ± 10.3 |
1.49 ± 0.06 |
RH08 |
58.5 ± 1.5 |
371.4 ± 5.7 |
1.49 ± 0.06 |
RH09 |
54.3 ± 1.5 |
370.3 ± 5.0 |
1.49 ± 0.06 |
RH10 |
54.3 ± 1.5 |
370.3 ± 5.0 |
1.49 ± 0.06 |
Average |
65.3 |
316.5 |
1.49 |
Median |
71.1 |
336.8 |
1.49 |
Deviation |
20.3 |
66.7 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
MC |
11.2 ± 1.4 |
28.0 ± 0.3 |
42.2 ± 2.7 |
52.4 ± 2.4 |
0.40 ± 0.05 |
0.21 ± 0.02 |
VC |
96.7 ± 1.1 |
1.2 ± 0.0 |
2.1 ± 0.1 |
59.4 ± 2.1 |
78.55 ± 1.60 |
1.63 ± 0.07 |
MX1 |
90.0 ± 0.7 |
9.2 ± 0.1 |
15.6 ± 1.0 |
58.7 ± 2.2 |
9.77 ± 0.14 |
1.54 ± 0.06 |
MX2 |
94.6 ± 0.8 |
4.8 ± 0.1 |
8.2 ± 0.5 |
59.2 ± 2.1 |
19.55 ± 0.33 |
1.60 ± 0.06 |
MX3 |
96.3 ± 0.9 |
1.2 ± 0.0 |
2.0 ± 0.1 |
59.4 ± 2.1 |
80.94 ± 1.49 |
1.62 ± 0.07 |
RH8 |
71.8 ± 0.7 |
15.2 ± 0.2 |
25.1 ± 1.6 |
57.4 ± 2.2 |
4.73 ± 0.05 |
1.25 ± 0.04 |
RH9 |
66.5 ± 0.8 |
17.2 ± 0.2 |
28.1 ± 1.8 |
56.9 ± 2.2 |
3.88 ± 0.05 |
1.17 ± 0.04 |
RH10 |
66.5 ± 0.8 |
17.2 ± 0.2 |
28.1 ± 1.8 |
56.9 ± 2.2 |
3.88 ± 0.05 |
1.17 ± 0.04 |
Average |
74.2 |
11.7 |
18.9 |
57.5 |
25.2 |
1.3 |
Median |
90.0 |
15.2 |
25.1 |
58.7 |
9.8 |
1.5 |
Deviation |
28.6 |
9.3 |
14.3 |
2.3 |
34.2 |
0.5 |
Downstream wave speeds
and
mach numbers (About, Top)
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
MC |
7.4 ± 1.5 |
31.8 ± 0.4 |
46.6 ± 1.8 |
58.3 ± 1.6 |
0.23 ± 0.05 |
0.13 ± 0.03 |
VC |
63.9 ± 2.4 |
1.4 ± 0.0 |
2.3 ± 0.1 |
66.4 ± 1.5 |
45.94 ± 1.83 |
0.96 ± 0.04 |
MX1 |
59.6 ± 2.1 |
10.4 ± 0.1 |
17.2 ± 0.7 |
65.6 ± 1.5 |
5.72 ± 0.21 |
0.91 ± 0.03 |
MX2 |
62.8 ± 2.3 |
5.5 ± 0.1 |
9.1 ± 0.4 |
66.2 ± 1.5 |
11.47 ± 0.44 |
0.95 ± 0.03 |
MX3 |
64.0 ± 2.4 |
1.3 ± 0.0 |
2.2 ± 0.1 |
66.4 ± 1.5 |
47.60 ± 1.89 |
0.97 ± 0.04 |
RH8 |
48.0 ± 1.8 |
17.2 ± 0.2 |
27.7 ± 1.1 |
64.1 ± 1.5 |
2.79 ± 0.11 |
0.75 ± 0.03 |
RH9 |
44.4 ± 1.7 |
19.4 ± 0.3 |
31.0 ± 1.2 |
63.5 ± 1.5 |
2.29 ± 0.09 |
0.70 ± 0.02 |
RH10 |
44.4 ± 1.7 |
19.4 ± 0.3 |
31.0 ± 1.2 |
63.5 ± 1.5 |
2.29 ± 0.09 |
0.70 ± 0.02 |
Average |
49.3 |
13.3 |
20.9 |
64.2 |
14.8 |
0.8 |
Median |
59.6 |
17.2 |
27.7 |
65.6 |
5.7 |
0.9 |
Deviation |
19.0 |
10.6 |
15.9 |
2.7 |
20.0 |
0.3 |
Survey interval (About, Top)
![Survey of solar wind interval](wi_survey_00075.png)
Selected
data (About, Top)
Key plasma parameters
![Survey](wi_selvwnb_00075.png)
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Velocity
![V](wi_selv_00075.png)
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Magnetic Field
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Simple
Methods
(About, Top)
Rankine Chi^2
Contour (About, Top)
Shock
Speed (About, Top)
![Shock Speed](wi_shockspeed_00075.png)
Theta Bn (About, Top)
![Theta Bn](wi_thetabn_00075.png)
Mach Numbers (About, Top)
Page updated Fri Jun 13 11:06:02 2014
Michael L Stevens
(mstevens@cfa.harvard.edu)
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