Database: Wind Shock Analysis
Event ID: 20042420909
Observation time: 08/29/2004 242.38179 0909 [UT]
|
|
General
Information (About, Top)
| Year |
2004 |
| Fractional day of year |
242.381786 |
| Arrival time of shock [seconds of day] |
32986.3 ± 60.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
235.114 |
| Y GSE location of spacecraft [Re] |
-93.804 |
| Z GSE location of spacecraft [Re] |
4.504 |
| Upstream plasma points selected for analysis |
0007 |
| Upstream field points selected for analysis |
0238 |
| Downstream plasma points selected for analysis |
0008
|
| Downstream field points selected for analysis |
0260 |
| Minimum chisq/dof for RH8,RH9,RH10 |
10.76, 15.34, 15.83 |
Event added to database
|
Sun Mar 13 01:31:31 2005
|
Event last processed
|
Tue Mar 31 00:07:28 2009
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
50.808 ± 1.342
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-400.4 ± 2.5 |
-439.5 ± 4.1 |
| Vy GSE [km/s] |
32.1 ± 1.9 |
31.0 ± 6.1 |
| Vz GSE [km/s] |
-20.8 ± 2.5 |
-22.6 ± 5.6 |
| Wi [km/s] |
27.2 ± 1.3 |
39.5 ± 3.1 |
| We [km/s] |
859.7 ± 40.2 |
1249.6 ± 98.4 |
| Ni [n/cc] |
4.1 ± 0.2 |
7.6 ± 0.7 |
| Bx GSE [nT] |
-3.0 ± 0.3 |
-3.9 ± 0.6 |
| By GSE [nT] |
1.8 ± 0.2 |
-2.2 ± 1.1 |
| Bz GSE [nT] |
-0.5 ± 0.4 |
2.5 ± 1.0 |
Plasma Beta
|
0.491 ± 0.533
|
0.928 ± 1.048
|
Sound Speed [km/s]
|
35.10 ± 1.64
|
51.01 ± 4.02
|
Alfven Speed [km/s]
|
39.01 ± 1.73
|
42.47 ± 5.79
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.957 ± 0.031 |
0.287 ± 0.102 |
0.053 ± 0.053 |
3.05 ± 6.52 |
163.31 ± 6.14 |
| VC |
-0.998 ± 0.009 |
-0.014 ± 0.159 |
-0.056 ± 0.056 |
-3.21 ± 8.64 |
180.80 ± 9.13 |
| MX1 |
-0.980 ± 0.031 |
0.181 ± 0.157 |
-0.086 ± 0.086 |
-4.94 ± 7.33 |
169.50 ± 9.19 |
| MX2 |
-0.973 ± 0.029 |
0.106 ± 0.121 |
-0.203 ± 0.200 |
-11.72 ± 7.30 |
173.77 ± 7.11 |
| MX3 |
-0.978 ± 0.025 |
0.135 ± 0.116 |
-0.162 ± 0.160 |
-9.30 ± 6.71 |
172.13 ± 6.82 |
| RH08 |
-1.000 ± 0.000 |
-0.026 ± 0.015 |
-0.006 ± 0.006 |
-0.32 ± 0.81 |
181.50 ± 0.83 |
| RH09 |
-0.967 ± 0.018 |
0.215 ± 0.069 |
-0.140 ± 0.139 |
-8.03 ± 4.02 |
167.47 ± 4.07 |
| RH10 |
-0.972 ± 0.017 |
0.198 ± 0.069 |
-0.128 ± 0.128 |
-7.38 ± 4.01 |
168.47 ± 4.07 |
| Average |
-0.978 |
0.135 |
-0.091 |
-5.232 |
172.119 |
| Median |
-0.973 |
0.181 |
-0.086 |
-4.937 |
172.125 |
| Deviation |
0.015 |
0.110 |
0.085 |
4.899 |
6.388 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
18.0 ± 7.9 |
471.6 ± 11.5 |
1.88 ± 0.22 |
| VC |
32.4 ± 5.9 |
486.2 ± 12.2 |
1.88 ± 0.22 |
| MX1 |
21.2 ± 6.2 |
483.6 ± 11.3 |
1.88 ± 0.22 |
| MX2 |
25.5 ± 4.4 |
481.5 ± 10.9 |
1.88 ± 0.22 |
| MX3 |
23.7 ± 5.0 |
483.3 ± 11.1 |
1.88 ± 0.22 |
| RH08 |
33.5 ± 6.3 |
485.3 ± 12.6 |
1.88 ± 0.22 |
| RH09 |
19.2 ± 5.5 |
479.5 ± 11.0 |
1.88 ± 0.22 |
| RH10 |
20.1 ± 5.6 |
481.1 ± 11.1 |
1.88 ± 0.22 |
| Average |
24.2 |
481.5 |
1.88 |
| Median |
23.7 |
483.3 |
1.88 |
| Deviation |
5.9 |
4.6 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
80.5 ± 2.0 |
30.3 ± 0.8 |
37.1 ± 1.6 |
42.8 ± 1.1 |
2.65 ± 0.09 |
1.88 ± 0.09 |
| VC |
85.8 ± 2.4 |
25.0 ± 0.6 |
32.9 ± 1.5 |
46.2 ± 1.0 |
3.43 ± 0.13 |
1.86 ± 0.09 |
| MX1 |
83.8 ± 2.0 |
29.2 ± 0.7 |
36.4 ± 1.6 |
43.6 ± 1.0 |
2.87 ± 0.09 |
1.92 ± 0.09 |
| MX2 |
84.2 ± 2.1 |
27.6 ± 0.7 |
35.2 ± 1.6 |
44.6 ± 1.0 |
3.05 ± 0.09 |
1.89 ± 0.08 |
| MX3 |
84.2 ± 2.1 |
28.3 ± 0.7 |
35.7 ± 1.6 |
44.2 ± 1.0 |
2.97 ± 0.09 |
1.91 ± 0.08 |
| RH8 |
85.8 ± 2.5 |
24.5 ± 0.5 |
32.5 ± 1.4 |
46.4 ± 1.0 |
3.50 ± 0.14 |
1.85 ± 0.09 |
| RH9 |
82.7 ± 1.9 |
30.0 ± 0.8 |
36.8 ± 1.6 |
43.1 ± 1.1 |
2.76 ± 0.08 |
1.92 ± 0.09 |
| RH10 |
83.0 ± 2.0 |
29.6 ± 0.8 |
36.6 ± 1.6 |
43.4 ± 1.1 |
2.80 ± 0.09 |
1.92 ± 0.09 |
| Average |
83.7 |
28.1 |
35.4 |
44.3 |
3.0 |
1.9 |
| Median |
84.2 |
29.2 |
36.4 |
44.2 |
3.0 |
1.9 |
| Deviation |
1.7 |
2.2 |
1.8 |
1.4 |
0.3 |
0.0 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
43.5 ± 2.7 |
36.8 ± 2.0 |
40.4 ± 5.5 |
55.6 ± 2.3 |
1.19 ± 0.10 |
0.79 ± 0.08 |
| VC |
46.6 ± 3.9 |
30.7 ± 1.5 |
35.9 ± 4.9 |
59.2 ± 2.2 |
1.53 ± 0.15 |
0.79 ± 0.09 |
| MX1 |
45.5 ± 2.7 |
35.5 ± 1.9 |
39.6 ± 5.4 |
56.4 ± 2.2 |
1.28 ± 0.10 |
0.81 ± 0.08 |
| MX2 |
45.9 ± 2.5 |
33.7 ± 1.7 |
38.3 ± 5.2 |
57.5 ± 2.2 |
1.36 ± 0.10 |
0.80 ± 0.07 |
| MX3 |
45.8 ± 2.6 |
34.5 ± 1.8 |
38.9 ± 5.3 |
57.0 ± 2.2 |
1.33 ± 0.10 |
0.81 ± 0.07 |
| RH8 |
46.7 ± 4.2 |
30.1 ± 1.4 |
35.4 ± 4.8 |
59.5 ± 2.2 |
1.56 ± 0.17 |
0.79 ± 0.09 |
| RH9 |
44.9 ± 2.3 |
36.3 ± 1.9 |
40.1 ± 5.5 |
55.9 ± 2.3 |
1.24 ± 0.09 |
0.81 ± 0.07 |
| RH10 |
45.0 ± 2.4 |
36.0 ± 1.9 |
39.9 ± 5.4 |
56.1 ± 2.2 |
1.25 ± 0.09 |
0.80 ± 0.07 |
| Average |
45.5 |
34.2 |
38.6 |
57.1 |
1.3 |
0.8 |
| Median |
45.8 |
35.5 |
39.6 |
57.0 |
1.3 |
0.8 |
| Deviation |
1.0 |
2.6 |
1.9 |
1.5 |
0.1 |
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)
| 
