Database: Wind Shock Analysis
Event ID: 20121421831
Observation time: 05/21/2012 142.77189 1831 [UT]
|
|
General
Information (About, Top)
| Year |
2012 |
| Fractional day of year |
142.771892 |
| Arrival time of shock [seconds of day] |
66691.5 ± 10.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
293.029 |
| Y GSE location of spacecraft [Re] |
148.696 |
| Z GSE location of spacecraft [Re] |
48.170 |
| Upstream plasma points selected for analysis |
0004 |
| Upstream field points selected for analysis |
0125 |
| Downstream plasma points selected for analysis |
0004
|
| Downstream field points selected for analysis |
0128 |
| Minimum chisq/dof for RH8,RH9,RH10 |
6.53, 22.89, 29.39 |
Event added to database
|
Thu Sep 19 16:19:00 2013
|
Event last processed
|
Mon Oct 7 14:18:20 2013
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
66.217 ± 1.579
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-324.3 ± 1.1 |
-383.0 ± 6.6 |
| Vy GSE [km/s] |
12.1 ± 1.5 |
28.8 ± 2.6 |
| Vz GSE [km/s] |
-20.7 ± 0.6 |
-32.3 ± 7.3 |
| Wi [km/s] |
23.0 ± 0.2 |
34.3 ± 3.5 |
| We [km/s] |
728.8 ± 7.0 |
1084.9 ± 109.3 |
| Ni [n/cc] |
4.8 ± 0.2 |
13.7 ± 1.0 |
| Bx GSE [nT] |
-1.3 ± 0.1 |
-2.2 ± 0.4 |
| By GSE [nT] |
-1.0 ± 0.2 |
-2.6 ± 0.4 |
| Bz GSE [nT] |
1.6 ± 0.1 |
5.0 ± 0.4 |
Plasma Beta
|
0.987 ± 1.037
|
0.944 ± 1.097
|
Sound Speed [km/s]
|
29.75 ± 0.29
|
44.29 ± 4.46
|
Alfven Speed [km/s]
|
23.22 ± 0.62
|
35.79 ± 1.79
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.976 ± 0.042 |
-0.072 ± 0.372 |
-0.204 ± 0.201 |
-11.78 ± 8.82 |
184.19 ± 21.82 |
| VC |
-0.946 ± 0.020 |
0.272 ± 0.048 |
-0.179 ± 0.177 |
-10.31 ± 4.94 |
163.95 ± 2.91 |
| MX1 |
-0.963 ± 0.017 |
0.236 ± 0.032 |
-0.127 ± 0.126 |
-7.30 ± 6.99 |
166.22 ± 1.89 |
| MX2 |
-0.962 ± 0.017 |
0.244 ± 0.034 |
-0.124 ± 0.123 |
-7.12 ± 7.16 |
165.79 ± 2.04 |
| MX3 |
-0.961 ± 0.018 |
0.247 ± 0.036 |
-0.122 ± 0.122 |
-7.02 ± 7.25 |
165.56 ± 2.15 |
| RH08 |
-0.971 ± 0.007 |
0.216 ± 0.030 |
-0.106 ± 0.106 |
-6.09 ± 1.36 |
167.47 ± 1.77 |
| RH09 |
-0.700 ± 0.051 |
0.690 ± 0.052 |
0.184 ± 0.182 |
10.62 ± 3.13 |
135.38 ± 4.21 |
| RH10 |
-0.713 ± 0.049 |
0.679 ± 0.052 |
0.173 ± 0.171 |
9.97 ± 3.94 |
136.38 ± 4.11 |
| Average |
-0.899 |
0.314 |
-0.063 |
-3.630 |
160.617 |
| Median |
-0.961 |
0.247 |
-0.122 |
-7.023 |
165.793 |
| Deviation |
0.119 |
0.254 |
0.153 |
8.804 |
16.566 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
63.1 ± 5.2 |
411.2 ± 2.1 |
2.84 ± 0.15 |
| VC |
72.1 ± 6.2 |
411.4 ± 1.9 |
2.84 ± 0.15 |
| MX1 |
68.4 ± 6.2 |
415.9 ± 1.9 |
2.84 ± 0.15 |
| MX2 |
68.5 ± 6.2 |
415.5 ± 1.8 |
2.84 ± 0.15 |
| MX3 |
68.5 ± 6.2 |
415.3 ± 1.8 |
2.84 ± 0.15 |
| RH08 |
66.7 ± 6.1 |
417.6 ± 1.8 |
2.84 ± 0.15 |
| RH09 |
76.1 ± 6.2 |
312.3 ± 1.2 |
2.84 ± 0.15 |
| RH10 |
75.8 ± 6.2 |
317.9 ± 4.8 |
2.84 ± 0.15 |
| Average |
69.9 |
389.6 |
2.84 |
| Median |
68.5 |
415.3 |
2.84 |
| Deviation |
4.5 |
46.1 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
91.2 ± 1.2 |
8.5 ± 0.1 |
10.5 ± 0.3 |
36.8 ± 0.3 |
10.74 ± 0.11 |
2.48 ± 0.03 |
| VC |
97.8 ± 1.3 |
5.7 ± 0.1 |
7.1 ± 0.2 |
37.3 ± 0.4 |
17.20 ± 0.26 |
2.62 ± 0.04 |
| MX1 |
98.0 ± 1.3 |
6.9 ± 0.1 |
8.6 ± 0.2 |
37.1 ± 0.4 |
14.29 ± 0.21 |
2.64 ± 0.04 |
| MX2 |
98.1 ± 1.3 |
6.8 ± 0.1 |
8.5 ± 0.2 |
37.1 ± 0.4 |
14.36 ± 0.21 |
2.64 ± 0.04 |
| MX3 |
98.1 ± 1.3 |
6.8 ± 0.1 |
8.5 ± 0.2 |
37.1 ± 0.4 |
14.40 ± 0.21 |
2.64 ± 0.04 |
| RH8 |
97.9 ± 1.3 |
7.4 ± 0.1 |
9.2 ± 0.2 |
37.0 ± 0.4 |
13.25 ± 0.19 |
2.65 ± 0.04 |
| RH9 |
80.9 ± 1.5 |
4.4 ± 0.1 |
5.6 ± 0.1 |
37.5 ± 0.4 |
18.27 ± 0.45 |
2.16 ± 0.05 |
| RH10 |
82.0 ± 1.5 |
4.5 ± 0.1 |
5.7 ± 0.2 |
37.5 ± 0.4 |
18.16 ± 0.44 |
2.19 ± 0.05 |
| Average |
93.0 |
6.4 |
8.0 |
37.2 |
15.1 |
2.5 |
| Median |
97.9 |
6.8 |
8.5 |
37.1 |
14.4 |
2.6 |
| Deviation |
7.5 |
1.4 |
1.7 |
0.2 |
2.6 |
0.2 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
32.7 ± 7.7 |
12.8 ± 0.2 |
16.2 ± 0.8 |
55.6 ± 2.5 |
2.55 ± 0.61 |
0.59 ± 0.16 |
| VC |
35.6 ± 7.2 |
8.6 ± 0.1 |
11.0 ± 0.5 |
56.4 ± 2.4 |
4.15 ± 0.86 |
0.64 ± 0.15 |
| MX1 |
36.0 ± 7.0 |
10.4 ± 0.1 |
13.2 ± 0.7 |
56.1 ± 2.5 |
3.48 ± 0.69 |
0.65 ± 0.15 |
| MX2 |
36.1 ± 7.0 |
10.3 ± 0.1 |
13.1 ± 0.7 |
56.1 ± 2.5 |
3.50 ± 0.69 |
0.65 ± 0.15 |
| MX3 |
36.1 ± 6.9 |
10.3 ± 0.1 |
13.1 ± 0.7 |
56.1 ± 2.5 |
3.51 ± 0.69 |
0.65 ± 0.15 |
| RH8 |
36.1 ± 6.9 |
11.2 ± 0.1 |
14.2 ± 0.7 |
56.0 ± 2.5 |
3.23 ± 0.64 |
0.65 ± 0.15 |
| RH9 |
30.5 ± 3.8 |
6.7 ± 0.1 |
8.6 ± 0.4 |
56.7 ± 2.4 |
4.55 ± 0.61 |
0.54 ± 0.09 |
| RH10 |
30.8 ± 3.9 |
6.8 ± 0.1 |
8.8 ± 0.4 |
56.6 ± 2.4 |
4.51 ± 0.61 |
0.55 ± 0.09 |
| Average |
34.2 |
9.6 |
12.3 |
56.2 |
3.7 |
0.6 |
| Median |
36.0 |
10.3 |
13.1 |
56.1 |
3.5 |
0.6 |
| Deviation |
2.5 |
2.1 |
2.6 |
0.4 |
0.7 |
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)
| 
