Database: Wind Shock Analysis
Event ID: 19952290247
Observation time: 08/17/1995 229.11620 0247 [UT]
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![Wind spacecraft](../windsm.gif)
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General
Information (About, Top)
Year |
1995 |
Fractional day of year |
229.116198 |
Arrival time of shock [seconds of day] |
10039.5 ± 9.0 |
Shock type |
FF |
Electron data availability |
0 |
X GSE location of spacecraft [Re] |
53.671 |
Y GSE location of spacecraft [Re] |
18.518 |
Z GSE location of spacecraft [Re] |
-3.131 |
Upstream plasma points selected for analysis |
0010 |
Upstream field points selected for analysis |
0276 |
Downstream plasma points selected for analysis |
0009
|
Downstream field points selected for analysis |
0239 |
Minimum chisq/dof for RH8,RH9,RH10 |
10.96, 13.41, 13.60 |
Event added to database
|
Mon Feb 14 11:01:00 2005
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Event last processed
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Wed Mar 25 12:59:38 2009
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Method selected
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RH08
|
Propagation delay to Earth [minutes]
|
11.620 ± 0.176
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Asymptotic
plasma
parameters (About, Top)
Parameter
|
Upstream
|
Downstream
|
Vx GSE [km/s] |
-400.2 ± 4.3 |
-439.6 ± 3.7 |
Vy GSE [km/s] |
-0.5 ± 1.1 |
8.7 ± 2.1 |
Vz GSE [km/s] |
24.8 ± 2.9 |
14.6 ± 2.9 |
Wi [km/s] |
26.3 ± 0.7 |
40.0 ± 1.2 |
We [km/s] |
831.2 ± 20.7 |
1265.3 ± 39.4 |
Ni [n/cc] |
2.5 ± 0.2 |
5.8 ± 0.4 |
Bx GSE [nT] |
1.6 ± 0.1 |
2.5 ± 0.1 |
By GSE [nT] |
0.8 ± 0.2 |
2.4 ± 0.3 |
Bz GSE [nT] |
0.9 ± 0.3 |
0.4 ± 0.4 |
Plasma Beta
|
0.887 ± 0.945
|
1.622 ± 1.618
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Sound Speed [km/s]
|
33.93 ± 0.85
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51.65 ± 1.61
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Alfven Speed [km/s]
|
28.02 ± 1.43
|
31.58 ± 1.68
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Best values of
shock
front normal for each method (About, Top)
Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
MC |
-0.680 ± 0.193 |
0.118 ± 0.195 |
-0.724 ± 0.558 |
-46.37 ± 15.29 |
170.17 ± 16.18 |
VC |
-0.945 ± 0.023 |
0.223 ± 0.058 |
-0.241 ± 0.236 |
-13.94 ± 4.51 |
166.73 ± 3.53 |
MX1 |
-0.861 ± 0.109 |
0.506 ± 0.185 |
-0.054 ± 0.054 |
-3.09 ± 13.91 |
149.54 ± 12.32 |
MX2 |
-0.870 ± 0.065 |
0.437 ± 0.125 |
-0.226 ± 0.222 |
-13.07 ± 4.93 |
153.32 ± 8.18 |
MX3 |
-0.864 ± 0.062 |
0.416 ± 0.118 |
-0.284 ± 0.276 |
-16.52 ± 5.50 |
154.31 ± 7.80 |
RH08 |
-0.989 ± 0.002 |
0.131 ± 0.009 |
-0.073 ± 0.072 |
-4.16 ± 0.71 |
172.48 ± 0.54 |
RH09 |
-0.990 ± 0.010 |
0.131 ± 0.068 |
-0.061 ± 0.061 |
-3.52 ± 4.03 |
172.48 ± 3.95 |
RH10 |
-0.990 ± 0.010 |
0.131 ± 0.068 |
-0.061 ± 0.061 |
-3.52 ± 4.03 |
172.48 ± 3.95 |
Average |
-0.898 |
0.261 |
-0.216 |
-13.024 |
163.938 |
Median |
-0.870 |
0.223 |
-0.073 |
-4.165 |
170.166 |
Deviation |
0.106 |
0.164 |
0.226 |
14.553 |
9.842 |
Key shock
parameters (About, Top)
Method |
ThetaBn |
Shock Speed |
Compression |
MC |
34.8 ± 9.4 |
315.1 ± 5.8 |
2.41 ± 0.20 |
VC |
41.3 ± 3.7 |
443.3 ± 5.1 |
2.41 ± 0.20 |
MX1 |
60.9 ± 3.8 |
410.4 ± 4.4 |
2.41 ± 0.20 |
MX2 |
53.0 ± 4.3 |
412.1 ± 4.9 |
2.41 ± 0.20 |
MX3 |
50.7 ± 4.6 |
408.1 ± 5.0 |
2.41 ± 0.20 |
RH08 |
41.9 ± 4.1 |
463.9 ± 4.8 |
2.41 ± 0.20 |
RH09 |
42.3 ± 4.2 |
464.3 ± 4.8 |
2.41 ± 0.20 |
RH10 |
42.3 ± 4.2 |
464.3 ± 4.8 |
2.41 ± 0.20 |
Average |
45.9 |
422.7 |
2.41 |
Median |
42.3 |
443.3 |
2.41 |
Deviation |
8.3 |
50.2 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
MC |
61.0 ± 4.5 |
19.9 ± 0.6 |
23.0 ± 1.2 |
39.3 ± 0.8 |
3.07 ± 0.19 |
1.55 ± 0.10 |
VC |
71.4 ± 4.5 |
17.7 ± 0.6 |
21.1 ± 1.1 |
40.3 ± 0.9 |
4.03 ± 0.21 |
1.77 ± 0.10 |
MX1 |
67.5 ± 3.9 |
10.8 ± 0.3 |
13.6 ± 0.7 |
42.7 ± 1.0 |
6.23 ± 0.29 |
1.58 ± 0.08 |
MX2 |
69.6 ± 4.2 |
13.7 ± 0.4 |
16.9 ± 0.9 |
41.8 ± 0.9 |
5.10 ± 0.25 |
1.66 ± 0.09 |
MX3 |
69.6 ± 4.3 |
14.5 ± 0.4 |
17.7 ± 0.9 |
41.6 ± 0.9 |
4.81 ± 0.24 |
1.67 ± 0.09 |
RH8 |
70.1 ± 4.4 |
17.5 ± 0.5 |
20.9 ± 1.1 |
40.4 ± 0.9 |
4.00 ± 0.21 |
1.74 ± 0.10 |
RH9 |
70.0 ± 4.4 |
17.4 ± 0.5 |
20.7 ± 1.1 |
40.4 ± 0.9 |
4.02 ± 0.21 |
1.73 ± 0.10 |
RH10 |
70.0 ± 4.4 |
17.4 ± 0.5 |
20.7 ± 1.1 |
40.4 ± 0.9 |
4.02 ± 0.21 |
1.73 ± 0.10 |
Average |
68.6 |
16.1 |
19.3 |
40.9 |
4.4 |
1.7 |
Median |
70.0 |
17.4 |
20.7 |
40.4 |
4.0 |
1.7 |
Deviation |
3.3 |
2.9 |
3.0 |
1.1 |
1.0 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
MC |
25.7 ± 4.2 |
24.1 ± 1.0 |
25.9 ± 1.4 |
55.6 ± 1.3 |
1.07 ± 0.17 |
0.46 ± 0.08 |
VC |
29.6 ± 4.1 |
21.7 ± 0.8 |
23.7 ± 1.3 |
56.6 ± 1.2 |
1.37 ± 0.18 |
0.52 ± 0.08 |
MX1 |
28.4 ± 3.6 |
13.4 ± 0.5 |
15.4 ± 0.8 |
59.1 ± 1.2 |
2.11 ± 0.26 |
0.48 ± 0.06 |
MX2 |
29.0 ± 3.9 |
16.9 ± 0.6 |
19.0 ± 1.0 |
58.2 ± 1.2 |
1.72 ± 0.22 |
0.50 ± 0.07 |
MX3 |
28.8 ± 4.0 |
17.8 ± 0.7 |
20.0 ± 1.1 |
57.9 ± 1.2 |
1.61 ± 0.21 |
0.50 ± 0.07 |
RH8 |
29.2 ± 3.8 |
21.4 ± 0.8 |
23.5 ± 1.2 |
56.7 ± 1.2 |
1.36 ± 0.17 |
0.52 ± 0.07 |
RH9 |
29.1 ± 3.8 |
21.3 ± 0.8 |
23.4 ± 1.2 |
56.7 ± 1.2 |
1.37 ± 0.17 |
0.51 ± 0.07 |
RH10 |
29.1 ± 3.8 |
21.3 ± 0.8 |
23.4 ± 1.2 |
56.7 ± 1.2 |
1.37 ± 0.17 |
0.51 ± 0.07 |
Average |
28.6 |
19.7 |
21.8 |
57.2 |
1.5 |
0.5 |
Median |
29.1 |
21.3 |
23.4 |
56.7 |
1.4 |
0.5 |
Deviation |
1.2 |
3.4 |
3.4 |
1.1 |
0.3 |
0.0 |
Survey interval (About, Top)
![Survey of solar wind interval](wi_survey_00021.png)
Selected
data (About, Top)
Key plasma parameters
![Survey](wi_selvwnb_00021.png)
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Velocity
![V](wi_selv_00021.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_00021.png)
Theta Bn (About, Top)
![Theta Bn](wi_thetabn_00021.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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