Database: Wind Shock Analysis
Event ID: 20122742218
Observation time: 09/30/2012 274.92960 2218 [UT]
|
|
General
Information (About, Top)
| Year |
2012 |
| Fractional day of year |
274.929601 |
| Arrival time of shock [seconds of day] |
80317.5 ± 20.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
240.323 |
| Y GSE location of spacecraft [Re] |
83.975 |
| Z GSE location of spacecraft [Re] |
11.177 |
| Upstream plasma points selected for analysis |
0005 |
| Upstream field points selected for analysis |
0162 |
| Downstream plasma points selected for analysis |
0004
|
| Downstream field points selected for analysis |
0130 |
| Minimum chisq/dof for RH8,RH9,RH10 |
22.45, 86.79, 105.25 |
Event added to database
|
Tue Oct 8 15:56:21 2013
|
Event last processed
|
Tue Oct 8 17:31:38 2013
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
49.100 ± 1.998
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-323.8 ± 3.3 |
-401.7 ± 2.9 |
| Vy GSE [km/s] |
-12.7 ± 0.7 |
21.4 ± 3.2 |
| Vz GSE [km/s] |
14.2 ± 3.5 |
20.6 ± 2.2 |
| Wi [km/s] |
31.4 ± 0.7 |
42.3 ± 1.4 |
| We [km/s] |
992.2 ± 21.9 |
1338.6 ± 43.1 |
| Ni [n/cc] |
11.4 ± 0.2 |
24.1 ± 1.7 |
| Bx GSE [nT] |
0.3 ± 0.5 |
3.1 ± 1.2 |
| By GSE [nT] |
6.4 ± 0.1 |
12.8 ± 1.5 |
| Bz GSE [nT] |
-1.1 ± 0.4 |
-9.5 ± 2.5 |
Plasma Beta
|
0.558 ± 0.545
|
0.341 ± 0.320
|
Sound Speed [km/s]
|
40.51 ± 0.89
|
54.65 ± 1.76
|
Alfven Speed [km/s]
|
42.02 ± 0.40
|
73.24 ± 5.16
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.362 ± 0.510 |
0.795 ± 0.257 |
0.487 ± 0.444 |
29.11 ± 14.43 |
114.48 ± 36.60 |
| VC |
-0.913 ± 0.019 |
0.400 ± 0.042 |
0.075 ± 0.074 |
4.28 ± 2.53 |
156.35 ± 2.62 |
| MX1 |
-0.879 ± 0.047 |
0.473 ± 0.087 |
0.061 ± 0.061 |
3.48 ± 2.18 |
151.73 ± 5.67 |
| MX2 |
-0.892 ± 0.033 |
0.450 ± 0.065 |
0.040 ± 0.040 |
2.28 ± 2.54 |
153.26 ± 4.17 |
| MX3 |
-0.897 ± 0.029 |
0.441 ± 0.059 |
0.031 ± 0.031 |
1.76 ± 2.96 |
153.83 ± 3.75 |
| RH08 |
-0.971 ± 0.004 |
0.163 ± 0.014 |
0.173 ± 0.171 |
9.97 ± 0.88 |
170.47 ± 0.82 |
| RH09 |
-0.865 ± 0.035 |
-0.161 ± 0.068 |
-0.475 ± 0.435 |
-28.35 ± 4.06 |
190.53 ± 4.51 |
| RH10 |
-0.900 ± 0.030 |
-0.071 ± 0.069 |
-0.430 ± 0.401 |
-25.48 ± 4.00 |
184.51 ± 4.41 |
| Average |
-0.835 |
0.311 |
-0.005 |
-0.368 |
159.396 |
| Median |
-0.892 |
0.441 |
0.061 |
3.483 |
156.350 |
| Deviation |
0.194 |
0.315 |
0.314 |
18.661 |
23.534 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
46.9 ± 4.8 |
227.8 ± 1.7 |
2.11 ± 0.17 |
| VC |
70.5 ± 4.6 |
455.0 ± 1.7 |
2.11 ± 0.17 |
| MX1 |
65.8 ± 4.6 |
442.6 ± 1.7 |
2.11 ± 0.17 |
| MX2 |
67.1 ± 4.6 |
447.0 ± 1.7 |
2.11 ± 0.17 |
| MX3 |
67.5 ± 4.5 |
448.5 ± 1.7 |
2.11 ± 0.17 |
| RH08 |
85.3 ± 4.7 |
474.8 ± 1.8 |
2.11 ± 0.17 |
| RH09 |
82.9 ± 2.6 |
387.0 ± 1.4 |
2.11 ± 0.17 |
| RH10 |
87.4 ± 2.9 |
410.0 ± 6.2 |
2.11 ± 0.17 |
| Average |
71.7 |
411.6 |
2.11 |
| Median |
70.5 |
447.0 |
2.11 |
| Deviation |
13.3 |
79.1 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
113.7 ± 2.4 |
21.4 ± 0.2 |
28.7 ± 0.3 |
54.3 ± 0.5 |
5.31 ± 0.10 |
2.09 ± 0.04 |
| VC |
163.2 ± 3.0 |
9.9 ± 0.1 |
14.0 ± 0.1 |
57.5 ± 0.5 |
16.52 ± 0.25 |
2.84 ± 0.04 |
| MX1 |
163.0 ± 2.8 |
12.2 ± 0.1 |
17.2 ± 0.2 |
57.1 ± 0.5 |
13.35 ± 0.19 |
2.86 ± 0.04 |
| MX2 |
163.1 ± 2.8 |
11.6 ± 0.1 |
16.4 ± 0.2 |
57.2 ± 0.5 |
14.08 ± 0.19 |
2.85 ± 0.04 |
| MX3 |
163.1 ± 2.8 |
11.4 ± 0.1 |
16.1 ± 0.2 |
57.3 ± 0.5 |
14.36 ± 0.20 |
2.85 ± 0.04 |
| RH8 |
159.8 ± 3.7 |
2.4 ± 0.0 |
3.4 ± 0.0 |
58.3 ± 0.5 |
67.29 ± 1.29 |
2.74 ± 0.05 |
| RH9 |
111.5 ± 1.4 |
3.6 ± 0.0 |
5.2 ± 0.0 |
58.3 ± 0.5 |
30.72 ± 0.26 |
1.91 ± 0.02 |
| RH10 |
123.9 ± 1.6 |
1.3 ± 0.0 |
1.9 ± 0.0 |
58.4 ± 0.5 |
93.90 ± 0.83 |
2.12 ± 0.02 |
| Average |
145.2 |
9.2 |
12.9 |
57.3 |
31.9 |
2.5 |
| Median |
163.0 |
11.4 |
16.1 |
57.5 |
16.5 |
2.8 |
| Deviation |
24.2 |
6.6 |
9.0 |
1.3 |
31.6 |
0.4 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
55.3 ± 2.1 |
31.8 ± 0.3 |
50.0 ± 3.5 |
85.7 ± 3.3 |
1.74 ± 0.08 |
0.65 ± 0.03 |
| VC |
78.0 ± 1.7 |
14.8 ± 0.2 |
24.5 ± 1.7 |
90.3 ± 3.2 |
5.28 ± 0.05 |
0.86 ± 0.02 |
| MX1 |
78.1 ± 1.5 |
18.3 ± 0.2 |
30.0 ± 2.1 |
89.6 ± 3.2 |
4.28 ± 0.03 |
0.87 ± 0.02 |
| MX2 |
78.1 ± 1.6 |
17.3 ± 0.2 |
28.5 ± 2.0 |
89.8 ± 3.2 |
4.51 ± 0.04 |
0.87 ± 0.02 |
| MX3 |
78.1 ± 1.7 |
17.0 ± 0.2 |
28.0 ± 2.0 |
89.9 ± 3.2 |
4.59 ± 0.04 |
0.87 ± 0.02 |
| RH8 |
77.5 ± 2.1 |
3.6 ± 0.0 |
6.0 ± 0.4 |
91.4 ± 3.2 |
21.79 ± 0.38 |
0.85 ± 0.03 |
| RH9 |
52.6 ± 3.8 |
5.4 ± 0.1 |
9.1 ± 0.6 |
91.3 ± 3.2 |
9.68 ± 0.60 |
0.58 ± 0.04 |
| RH10 |
58.9 ± 3.6 |
2.0 ± 0.0 |
3.3 ± 0.2 |
91.4 ± 3.2 |
29.81 ± 1.50 |
0.64 ± 0.03 |
| Average |
69.6 |
13.8 |
22.4 |
89.9 |
10.2 |
0.8 |
| Median |
78.0 |
17.0 |
28.0 |
90.3 |
5.3 |
0.9 |
| Deviation |
11.7 |
9.9 |
15.6 |
1.9 |
10.1 |
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)
| 
