Database: Wind Shock Analysis
Event ID: 20021090825
Observation time: 04/19/2002 109.35092 0825 [UT]
|
|
General
Information (About, Top)
| Year |
2002 |
| Fractional day of year |
109.350920 |
| Arrival time of shock [seconds of day] |
30319.5 ± 3.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
8.330 |
| Y GSE location of spacecraft [Re] |
212.310 |
| Z GSE location of spacecraft [Re] |
9.280 |
| Upstream plasma points selected for analysis |
0009 |
| Upstream field points selected for analysis |
0307 |
| Downstream plasma points selected for analysis |
0008
|
| Downstream field points selected for analysis |
0371 |
| Minimum chisq/dof for RH8,RH9,RH10 |
8.49, 20.72, 22.63 |
Event added to database
|
Sat Mar 12 23:06:32 2005
|
Event last processed
|
Mon Mar 30 23:42:10 2009
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
4.141 ± 0.429
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-463.1 ± 13.2 |
-682.4 ± 21.8 |
| Vy GSE [km/s] |
39.6 ± 12.5 |
-7.1 ± 10.7 |
| Vz GSE [km/s] |
-48.8 ± 13.0 |
-4.0 ± 18.4 |
| Wi [km/s] |
186.0 ± 6.9 |
258.2 ± 18.7 |
| We [km/s] |
5880.5 ± 218.8 |
8164.0 ± 592.1 |
| Ni [n/cc] |
1.3 ± 0.1 |
4.2 ± 0.5 |
| Bx GSE [nT] |
-0.3 ± 0.6 |
2.4 ± 1.0 |
| By GSE [nT] |
-8.9 ± 0.1 |
-19.9 ± 1.0 |
| Bz GSE [nT] |
2.6 ± 0.6 |
6.0 ± 2.2 |
Plasma Beta
|
1.085 ± 1.139
|
1.333 ± 1.382
|
Sound Speed [km/s]
|
240.07 ± 8.93
|
333.29 ± 24.17
|
Alfven Speed [km/s]
|
179.00 ± 5.99
|
226.33 ± 13.28
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.943 ± 0.158 |
-0.276 ± 0.364 |
0.184 ± 0.182 |
10.59 ± 38.09 |
196.30 ± 21.99 |
| VC |
-0.959 ± 0.023 |
-0.204 ± 0.062 |
0.198 ± 0.195 |
11.40 ± 5.56 |
192.01 ± 3.70 |
| MX1 |
-0.965 ± 0.024 |
-0.177 ± 0.085 |
0.192 ± 0.189 |
11.04 ± 5.48 |
190.39 ± 5.06 |
| MX2 |
-0.965 ± 0.023 |
-0.176 ± 0.081 |
0.193 ± 0.190 |
11.12 ± 5.40 |
190.35 ± 4.79 |
| MX3 |
-0.965 ± 0.023 |
-0.176 ± 0.078 |
0.194 ± 0.191 |
11.18 ± 5.41 |
190.32 ± 4.64 |
| RH08 |
-0.985 ± 0.002 |
-0.113 ± 0.009 |
0.128 ± 0.128 |
7.38 ± 0.72 |
186.52 ± 0.54 |
| RH09 |
-0.984 ± 0.013 |
-0.112 ± 0.070 |
0.140 ± 0.139 |
8.03 ± 4.01 |
186.52 ± 4.07 |
| RH10 |
-0.984 ± 0.013 |
-0.112 ± 0.070 |
0.140 ± 0.139 |
8.03 ± 4.01 |
186.52 ± 4.07 |
| Average |
-0.969 |
-0.168 |
0.171 |
9.848 |
189.865 |
| Median |
-0.965 |
-0.176 |
0.192 |
11.041 |
190.349 |
| Deviation |
0.015 |
0.057 |
0.029 |
1.711 |
3.388 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
69.9 ± 3.5 |
753.4 ± 46.1 |
3.23 ± 0.41 |
| VC |
73.8 ± 3.4 |
764.3 ± 46.3 |
3.23 ± 0.41 |
| MX1 |
75.4 ± 3.4 |
768.4 ± 46.4 |
3.23 ± 0.41 |
| MX2 |
75.5 ± 3.4 |
768.3 ± 46.4 |
3.23 ± 0.41 |
| MX3 |
75.5 ± 3.4 |
768.2 ± 46.4 |
3.23 ± 0.41 |
| RH08 |
80.1 ± 3.5 |
778.8 ± 47.0 |
3.23 ± 0.41 |
| RH09 |
79.9 ± 3.5 |
777.7 ± 46.9 |
3.23 ± 0.41 |
| RH10 |
79.9 ± 3.5 |
777.7 ± 46.9 |
3.23 ± 0.41 |
| Average |
76.2 |
769.6 |
3.23 |
| Median |
75.5 |
768.4 |
3.23 |
| Deviation |
3.6 |
8.6 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
336.4 ± 15.2 |
49.9 ± 1.1 |
61.4 ± 2.1 |
295.4 ± 7.0 |
6.75 ± 0.40 |
1.14 ± 0.06 |
| VC |
338.1 ± 15.0 |
40.3 ± 0.9 |
49.9 ± 1.7 |
296.8 ± 7.0 |
8.39 ± 0.49 |
1.14 ± 0.06 |
| MX1 |
337.7 ± 14.9 |
36.3 ± 0.8 |
45.0 ± 1.5 |
297.3 ± 7.0 |
9.31 ± 0.54 |
1.14 ± 0.06 |
| MX2 |
337.7 ± 14.9 |
36.3 ± 0.8 |
44.9 ± 1.5 |
297.4 ± 7.0 |
9.32 ± 0.55 |
1.14 ± 0.06 |
| MX3 |
337.7 ± 14.9 |
36.2 ± 0.8 |
44.9 ± 1.5 |
297.4 ± 7.0 |
9.33 ± 0.55 |
1.14 ± 0.06 |
| RH8 |
333.3 ± 14.3 |
24.8 ± 0.5 |
30.9 ± 1.0 |
298.5 ± 7.0 |
13.44 ± 0.78 |
1.12 ± 0.06 |
| RH9 |
333.4 ± 14.3 |
25.2 ± 0.5 |
31.4 ± 1.1 |
298.5 ± 7.0 |
13.22 ± 0.77 |
1.12 ± 0.06 |
| RH10 |
333.4 ± 14.3 |
25.2 ± 0.5 |
31.4 ± 1.1 |
298.5 ± 7.0 |
13.22 ± 0.77 |
1.12 ± 0.06 |
| Average |
336.0 |
34.3 |
42.5 |
297.5 |
10.4 |
1.1 |
| Median |
337.7 |
36.3 |
44.9 |
297.4 |
9.3 |
1.1 |
| Deviation |
2.2 |
8.8 |
10.8 |
1.1 |
2.6 |
0.0 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
108.3 ± 20.3 |
64.8 ± 1.3 |
77.7 ± 4.6 |
398.3 ± 13.0 |
1.67 ± 0.31 |
0.27 ± 0.05 |
| VC |
109.4 ± 20.3 |
52.4 ± 1.1 |
63.1 ± 3.7 |
400.1 ± 12.9 |
2.09 ± 0.38 |
0.27 ± 0.05 |
| MX1 |
109.1 ± 20.3 |
47.2 ± 1.0 |
56.9 ± 3.3 |
400.8 ± 12.9 |
2.31 ± 0.43 |
0.27 ± 0.05 |
| MX2 |
109.2 ± 20.3 |
47.1 ± 1.0 |
56.8 ± 3.3 |
400.8 ± 12.9 |
2.32 ± 0.43 |
0.27 ± 0.05 |
| MX3 |
109.2 ± 20.3 |
47.1 ± 1.0 |
56.8 ± 3.3 |
400.8 ± 12.9 |
2.32 ± 0.43 |
0.27 ± 0.05 |
| RH8 |
106.2 ± 20.9 |
32.2 ± 0.7 |
39.0 ± 2.3 |
402.2 ± 12.8 |
3.29 ± 0.64 |
0.26 ± 0.05 |
| RH9 |
106.2 ± 20.8 |
32.8 ± 0.7 |
39.7 ± 2.3 |
402.2 ± 12.8 |
3.24 ± 0.63 |
0.26 ± 0.05 |
| RH10 |
106.2 ± 20.8 |
32.8 ± 0.7 |
39.7 ± 2.3 |
402.2 ± 12.8 |
3.24 ± 0.63 |
0.26 ± 0.05 |
| Average |
108.0 |
44.5 |
53.7 |
400.9 |
2.6 |
0.3 |
| Median |
109.1 |
47.1 |
56.8 |
400.8 |
2.3 |
0.3 |
| Deviation |
1.5 |
11.4 |
13.6 |
1.3 |
0.6 |
0.0 |
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)
| 
