Database: Wind Shock Analysis
Event ID: 20020821124
Observation time: 03/23/2002 82.47509 1124 [UT]
|
|
General
Information (About, Top)
| Year |
2002 |
| Fractional day of year |
82.475087 |
| Arrival time of shock [seconds of day] |
41047.5 ± 3.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
66.988 |
| Y GSE location of spacecraft [Re] |
-69.615 |
| Z GSE location of spacecraft [Re] |
-5.600 |
| Upstream plasma points selected for analysis |
0009 |
| Upstream field points selected for analysis |
0275 |
| Downstream plasma points selected for analysis |
0007
|
| Downstream field points selected for analysis |
0231 |
| Minimum chisq/dof for RH8,RH9,RH10 |
8.15, 12.90, 13.41 |
Event added to database
|
Mon Feb 14 11:18:31 2005
|
Event last processed
|
Mon Mar 30 22:50:22 2009
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
15.830 ± 0.422
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-399.7 ± 3.2 |
-477.2 ± 2.6 |
| Vy GSE [km/s] |
24.6 ± 9.0 |
-1.9 ± 1.8 |
| Vz GSE [km/s] |
18.3 ± 3.3 |
51.7 ± 4.2 |
| Wi [km/s] |
31.1 ± 1.7 |
34.7 ± 1.8 |
| We [km/s] |
984.9 ± 54.0 |
1098.6 ± 55.9 |
| Ni [n/cc] |
3.6 ± 0.3 |
9.3 ± 0.5 |
| Bx GSE [nT] |
2.0 ± 0.5 |
2.4 ± 0.5 |
| By GSE [nT] |
0.6 ± 1.7 |
-9.4 ± 1.8 |
| Bz GSE [nT] |
2.7 ± 0.5 |
4.2 ± 1.0 |
Plasma Beta
|
0.510 ± 0.497
|
0.216 ± 0.177
|
Sound Speed [km/s]
|
40.21 ± 2.20
|
44.85 ± 2.28
|
Alfven Speed [km/s]
|
43.83 ± 2.43
|
76.68 ± 8.44
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.701 ± 0.333 |
-0.125 ± 0.296 |
-0.702 ± 0.554 |
-44.57 ± 27.26 |
190.08 ± 23.72 |
| VC |
-0.878 ± 0.036 |
-0.298 ± 0.091 |
0.375 ± 0.357 |
22.05 ± 2.90 |
198.75 ± 5.94 |
| MX1 |
-0.955 ± 0.320 |
0.091 ± 0.833 |
0.281 ± 0.274 |
16.33 ± 63.49 |
174.56 ± 49.90 |
| MX2 |
-0.966 ± 0.025 |
-0.017 ± 0.056 |
0.257 ± 0.251 |
14.87 ± 5.58 |
181.03 ± 3.32 |
| MX3 |
-0.935 ± 0.029 |
-0.001 ± 0.051 |
0.356 ± 0.340 |
20.84 ± 4.69 |
180.04 ± 3.12 |
| RH08 |
-0.975 ± 0.003 |
0.164 ± 0.012 |
0.151 ± 0.150 |
8.68 ± 0.63 |
170.47 ± 0.69 |
| RH09 |
-0.973 ± 0.016 |
0.199 ± 0.067 |
0.117 ± 0.117 |
6.74 ± 3.98 |
168.47 ± 3.92 |
| RH10 |
-0.973 ± 0.016 |
0.199 ± 0.068 |
0.117 ± 0.117 |
6.74 ± 4.01 |
168.47 ± 3.98 |
| Average |
-0.920 |
0.026 |
0.119 |
6.458 |
178.985 |
| Median |
-0.955 |
0.091 |
0.257 |
14.865 |
180.037 |
| Deviation |
0.094 |
0.174 |
0.347 |
21.472 |
10.906 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
23.2 ± 18.6 |
320.6 ± 5.6 |
2.57 ± 0.27 |
| VC |
75.8 ± 13.2 |
495.2 ± 9.2 |
2.57 ± 0.27 |
| MX1 |
73.4 ± 5.1 |
520.7 ± 9.3 |
2.57 ± 0.27 |
| MX2 |
70.9 ± 7.5 |
527.0 ± 9.3 |
2.57 ± 0.27 |
| MX3 |
76.3 ± 6.6 |
517.4 ± 9.5 |
2.57 ± 0.27 |
| RH08 |
68.0 ± 4.2 |
520.1 ± 9.0 |
2.57 ± 0.27 |
| RH09 |
67.0 ± 3.8 |
516.0 ± 8.9 |
2.57 ± 0.27 |
| RH10 |
67.0 ± 3.8 |
516.0 ± 8.9 |
2.57 ± 0.27 |
| Average |
65.2 |
491.6 |
2.57 |
| Median |
70.9 |
517.4 |
2.57 |
| Deviation |
17.4 |
69.7 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
56.2 ± 3.1 |
32.4 ± 1.4 |
40.3 ± 2.2 |
49.9 ± 2.1 |
1.74 ± 0.11 |
1.13 ± 0.07 |
| VC |
144.9 ± 4.5 |
7.3 ± 0.3 |
10.8 ± 0.6 |
59.1 ± 2.4 |
19.80 ± 1.13 |
2.46 ± 0.14 |
| MX1 |
131.5 ± 3.0 |
8.5 ± 0.4 |
12.5 ± 0.7 |
58.9 ± 2.4 |
15.47 ± 0.75 |
2.24 ± 0.11 |
| MX2 |
136.5 ± 3.1 |
9.8 ± 0.4 |
14.4 ± 0.8 |
58.7 ± 2.4 |
13.92 ± 0.69 |
2.33 ± 0.11 |
| MX3 |
137.4 ± 3.0 |
7.1 ± 0.3 |
10.4 ± 0.6 |
59.1 ± 2.4 |
19.47 ± 0.97 |
2.33 ± 0.11 |
| RH8 |
123.6 ± 3.2 |
11.3 ± 0.5 |
16.4 ± 0.9 |
58.4 ± 2.4 |
10.97 ± 0.54 |
2.12 ± 0.10 |
| RH9 |
120.1 ± 3.4 |
11.8 ± 0.5 |
17.2 ± 1.0 |
58.3 ± 2.4 |
10.18 ± 0.50 |
2.06 ± 0.10 |
| RH10 |
120.1 ± 3.4 |
11.8 ± 0.5 |
17.2 ± 1.0 |
58.3 ± 2.4 |
10.18 ± 0.50 |
2.06 ± 0.10 |
| Average |
121.3 |
12.5 |
17.4 |
57.6 |
12.7 |
2.1 |
| Median |
131.5 |
11.3 |
16.4 |
58.7 |
13.9 |
2.2 |
| Deviation |
27.8 |
8.3 |
9.6 |
3.1 |
5.9 |
0.4 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
22.0 ± 3.3 |
39.6 ± 1.7 |
70.5 ± 7.8 |
79.6 ± 7.5 |
0.55 ± 0.08 |
0.28 ± 0.03 |
| VC |
56.4 ± 3.3 |
9.5 ± 0.4 |
18.9 ± 2.1 |
88.5 ± 6.6 |
5.93 ± 0.50 |
0.64 ± 0.08 |
| MX1 |
50.5 ± 2.8 |
11.1 ± 0.5 |
21.9 ± 2.4 |
88.3 ± 6.7 |
4.57 ± 0.35 |
0.58 ± 0.06 |
| MX2 |
52.5 ± 2.9 |
12.7 ± 0.5 |
25.1 ± 2.8 |
88.1 ± 6.7 |
4.13 ± 0.31 |
0.60 ± 0.07 |
| MX3 |
53.0 ± 3.0 |
9.2 ± 0.4 |
18.2 ± 2.0 |
88.5 ± 6.6 |
5.78 ± 0.46 |
0.60 ± 0.07 |
| RH8 |
47.3 ± 2.6 |
14.6 ± 0.6 |
28.7 ± 3.2 |
87.8 ± 6.7 |
3.24 ± 0.22 |
0.54 ± 0.06 |
| RH9 |
46.0 ± 2.5 |
15.3 ± 0.6 |
30.0 ± 3.3 |
87.7 ± 6.7 |
3.01 ± 0.20 |
0.53 ± 0.05 |
| RH10 |
46.0 ± 2.5 |
15.3 ± 0.6 |
30.0 ± 3.3 |
87.7 ± 6.7 |
3.01 ± 0.20 |
0.53 ± 0.05 |
| Average |
46.7 |
15.9 |
30.4 |
87.0 |
3.8 |
0.5 |
| Median |
50.5 |
14.6 |
28.7 |
88.1 |
4.1 |
0.6 |
| Deviation |
10.7 |
9.9 |
16.9 |
3.0 |
1.7 |
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)
| 
