Database: Wind Shock Analysis
Event ID: 20020312138
Observation time: 01/31/2002 31.90151 2138 [UT]
|
|
General
Information (About, Top)
| Year |
2002 |
| Fractional day of year |
31.901510 |
| Arrival time of shock [seconds of day] |
77890.5 ± 3.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
11.169 |
| Y GSE location of spacecraft [Re] |
-322.410 |
| Z GSE location of spacecraft [Re] |
16.180 |
| Upstream plasma points selected for analysis |
0007 |
| Upstream field points selected for analysis |
0217 |
| Downstream plasma points selected for analysis |
0006
|
| Downstream field points selected for analysis |
0198 |
| Minimum chisq/dof for RH8,RH9,RH10 |
41.74, 58.80, 61.91 |
Event added to database
|
Mon Feb 14 11:17:46 2005
|
Event last processed
|
Mon Mar 30 22:35:57 2009
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
7.286 ± 4.817
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-291.5 ± 2.2 |
-357.9 ± 2.5 |
| Vy GSE [km/s] |
-17.5 ± 0.8 |
-22.7 ± 1.1 |
| Vz GSE [km/s] |
9.8 ± 4.0 |
42.0 ± 4.2 |
| Wi [km/s] |
22.3 ± 0.9 |
24.8 ± 2.3 |
| We [km/s] |
704.5 ± 27.9 |
783.2 ± 73.6 |
| Ni [n/cc] |
4.8 ± 0.2 |
10.0 ± 0.4 |
| Bx GSE [nT] |
2.0 ± 0.2 |
-2.1 ± 0.4 |
| By GSE [nT] |
-5.5 ± 0.1 |
-11.9 ± 0.2 |
| Bz GSE [nT] |
-0.3 ± 0.4 |
-6.0 ± 0.4 |
Plasma Beta
|
0.148 ± 0.138
|
0.071 ± 0.075
|
Sound Speed [km/s]
|
28.76 ± 1.14
|
31.97 ± 3.01
|
Alfven Speed [km/s]
|
58.13 ± 1.91
|
93.02 ± 2.42
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.663 ± 0.050 |
0.687 ± 0.049 |
-0.297 ± 0.288 |
-17.26 ± 2.96 |
133.95 ± 4.09 |
| VC |
-0.898 ± 0.036 |
-0.070 ± 0.017 |
0.435 ± 0.405 |
25.78 ± 4.71 |
184.44 ± 1.05 |
| MX1 |
-0.892 ± 0.047 |
0.205 ± 0.118 |
0.403 ± 0.380 |
23.78 ± 5.54 |
167.05 ± 7.58 |
| MX2 |
-0.855 ± 0.024 |
0.090 ± 0.068 |
0.510 ± 0.460 |
30.68 ± 2.55 |
174.03 ± 4.57 |
| MX3 |
-0.836 ± 0.018 |
0.045 ± 0.048 |
0.547 ± 0.484 |
33.14 ± 1.83 |
176.89 ± 3.27 |
| RH08 |
-0.761 ± 0.022 |
0.087 ± 0.027 |
0.642 ± 0.535 |
39.98 ± 2.00 |
173.48 ± 2.00 |
| RH09 |
-0.735 ± 0.042 |
0.058 ± 0.061 |
0.676 ± 0.547 |
42.53 ± 3.56 |
175.49 ± 4.75 |
| RH10 |
-0.735 ± 0.043 |
0.058 ± 0.063 |
0.676 ± 0.547 |
42.53 ± 3.60 |
175.49 ± 4.87 |
| Average |
-0.797 |
0.145 |
0.449 |
27.644 |
170.103 |
| Median |
-0.761 |
0.087 |
0.547 |
33.137 |
175.487 |
| Deviation |
0.085 |
0.232 |
0.319 |
19.528 |
15.365 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
31.2 ± 3.2 |
238.3 ± 5.3 |
2.06 ± 0.14 |
| VC |
74.6 ± 1.9 |
410.2 ± 8.1 |
2.06 ± 0.14 |
| MX1 |
58.8 ± 2.0 |
397.6 ± 7.8 |
2.06 ± 0.14 |
| MX2 |
66.2 ± 2.2 |
393.7 ± 8.1 |
2.06 ± 0.14 |
| MX3 |
69.0 ± 2.3 |
389.8 ± 8.2 |
2.06 ± 0.14 |
| RH08 |
67.9 ± 2.7 |
363.9 ± 8.3 |
2.06 ± 0.14 |
| RH09 |
70.0 ± 2.8 |
355.7 ± 8.4 |
2.06 ± 0.14 |
| RH10 |
70.0 ± 2.8 |
355.7 ± 8.4 |
2.06 ± 0.14 |
| Average |
63.5 |
363.1 |
2.06 |
| Median |
69.0 |
389.8 |
2.06 |
| Deviation |
13.8 |
54.4 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
60.1 ± 2.7 |
23.7 ± 0.8 |
49.7 ± 1.6 |
60.4 ± 1.6 |
2.54 ± 0.12 |
1.00 ± 0.06 |
| VC |
143.0 ± 0.7 |
6.9 ± 0.2 |
15.4 ± 0.5 |
64.5 ± 1.2 |
20.83 ± 0.45 |
2.22 ± 0.05 |
| MX1 |
137.3 ± 0.8 |
13.7 ± 0.4 |
30.1 ± 1.0 |
63.4 ± 1.3 |
10.06 ± 0.22 |
2.17 ± 0.06 |
| MX2 |
141.0 ± 0.8 |
10.5 ± 0.3 |
23.5 ± 0.8 |
64.0 ± 1.3 |
13.39 ± 0.28 |
2.20 ± 0.05 |
| MX3 |
141.5 ± 0.8 |
9.3 ± 0.2 |
20.8 ± 0.7 |
64.2 ± 1.3 |
15.21 ± 0.32 |
2.21 ± 0.05 |
| RH8 |
137.2 ± 1.2 |
9.8 ± 0.3 |
21.9 ± 0.7 |
64.1 ± 1.3 |
14.00 ± 0.31 |
2.14 ± 0.05 |
| RH9 |
135.9 ± 1.3 |
8.9 ± 0.2 |
19.9 ± 0.7 |
64.3 ± 1.3 |
15.31 ± 0.34 |
2.12 ± 0.05 |
| RH10 |
135.9 ± 1.3 |
8.9 ± 0.2 |
19.9 ± 0.7 |
64.3 ± 1.3 |
15.31 ± 0.34 |
2.12 ± 0.05 |
| Average |
129.0 |
11.5 |
25.1 |
63.7 |
13.3 |
2.0 |
| Median |
137.3 |
9.8 |
21.9 |
64.2 |
15.2 |
2.2 |
| Deviation |
28.0 |
5.3 |
10.8 |
1.4 |
5.3 |
0.4 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
29.2 ± 2.2 |
26.9 ± 2.5 |
79.6 ± 2.1 |
94.6 ± 2.6 |
1.09 ± 0.10 |
0.31 ± 0.02 |
| VC |
69.1 ± 1.5 |
8.0 ± 0.7 |
24.7 ± 0.6 |
98.1 ± 3.0 |
8.64 ± 0.70 |
0.70 ± 0.03 |
| MX1 |
66.2 ± 1.2 |
15.9 ± 1.4 |
48.2 ± 1.3 |
97.1 ± 2.9 |
4.20 ± 0.35 |
0.68 ± 0.02 |
| MX2 |
68.2 ± 1.4 |
12.3 ± 1.1 |
37.5 ± 1.0 |
97.6 ± 3.0 |
5.58 ± 0.47 |
0.70 ± 0.03 |
| MX3 |
68.7 ± 1.4 |
10.9 ± 0.9 |
33.3 ± 0.9 |
97.8 ± 3.0 |
6.35 ± 0.54 |
0.70 ± 0.03 |
| RH8 |
66.4 ± 1.7 |
11.4 ± 1.0 |
35.0 ± 0.9 |
97.7 ± 3.0 |
5.84 ± 0.52 |
0.68 ± 0.03 |
| RH9 |
65.7 ± 1.8 |
10.4 ± 0.9 |
31.8 ± 0.8 |
97.8 ± 3.0 |
6.37 ± 0.57 |
0.67 ± 0.03 |
| RH10 |
65.7 ± 1.8 |
10.4 ± 0.9 |
31.8 ± 0.8 |
97.8 ± 3.0 |
6.37 ± 0.57 |
0.67 ± 0.03 |
| Average |
62.4 |
13.3 |
40.2 |
97.3 |
5.6 |
0.6 |
| Median |
66.4 |
11.4 |
35.0 |
97.8 |
6.4 |
0.7 |
| Deviation |
13.5 |
5.9 |
17.2 |
1.1 |
2.2 |
0.1 |
Survey interval (About, Top)
Selected
data (About, Top)
|
Key plasma parameters
|
Velocity
|
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)
| 
