Database: Wind Shock Analysis
Event ID: 20120572058
Observation time: 02/26/2012 57.87411 2058 [UT]
|
|
General
Information (About, Top)
| Year |
2012 |
| Fractional day of year |
57.874115 |
| Arrival time of shock [seconds of day] |
75523.5 ± 20.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
201.890 |
| Y GSE location of spacecraft [Re] |
74.757 |
| Z GSE location of spacecraft [Re] |
-13.146 |
| Upstream plasma points selected for analysis |
0003 |
| Upstream field points selected for analysis |
0099 |
| Downstream plasma points selected for analysis |
0003
|
| Downstream field points selected for analysis |
0084 |
| Minimum chisq/dof for RH8,RH9,RH10 |
72.41, Infinity, -1277.67 |
Event added to database
|
Thu Sep 19 12:19:41 2013
|
Event last processed
|
Mon Oct 7 14:03:00 2013
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
63.616 ± 20.004
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-406.5 ± 4.5 |
-500.3 ± 11.8 |
| Vy GSE [km/s] |
-15.6 ± 3.1 |
-50.0 ± 0.2 |
| Vz GSE [km/s] |
-18.7 ± 1.4 |
-48.8 ± 2.8 |
| Wi [km/s] |
31.6 ± 2.9 |
68.6 ± 3.5 |
| We [km/s] |
998.2 ± 91.0 |
2170.9 ± 110.1 |
| Ni [n/cc] |
3.3 ± 0.4 |
11.1 ± 0.7 |
| Bx GSE [nT] |
2.6 ± 0.7 |
5.3 ± 0.9 |
| By GSE [nT] |
0.6 ± 0.7 |
-2.7 ± 0.6 |
| Bz GSE [nT] |
-1.7 ± 0.1 |
-0.9 ± 1.8 |
Plasma Beta
|
0.684 ± 0.651
|
2.934 ± 2.500
|
Sound Speed [km/s]
|
40.75 ± 3.71
|
88.63 ± 4.49
|
Alfven Speed [km/s]
|
38.49 ± 4.28
|
40.86 ± 4.14
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.712 ± 0.076 |
-0.397 ± 0.089 |
0.580 ± 0.504 |
35.44 ± 6.83 |
209.13 ± 6.62 |
| VC |
-0.897 ± 0.021 |
-0.333 ± 0.047 |
-0.291 ± 0.282 |
-16.90 ± 2.49 |
200.35 ± 3.01 |
| MX1 |
-0.866 ± 0.321 |
-0.498 ± 0.554 |
0.050 ± 0.050 |
2.87 ± 49.68 |
209.92 ± 36.64 |
| MX2 |
-0.672 ± 0.217 |
-0.644 ± 0.227 |
-0.366 ± 0.349 |
-21.47 ± 2.40 |
223.81 ± 19.30 |
| MX3 |
-0.757 ± 0.156 |
-0.625 ± 0.189 |
-0.191 ± 0.189 |
-11.03 ± 5.97 |
219.56 ± 14.26 |
| RH08 |
-0.376 ± 0.064 |
-0.384 ± 0.064 |
0.844 ± 0.539 |
57.52 ± 3.95 |
225.63 ± 7.39 |
| RH09 |
-0.000 ± 0.035 |
-0.000 ± 0.000 |
-1.000 ± 0.000 |
-90.00 ± 2.00 |
0.00 ± 2.00 |
| RH10 |
-0.496 ± 0.061 |
0.848 ± 0.037 |
-0.184 ± 0.182 |
-10.62 ± 4.00 |
120.33 ± 4.11 |
| Average |
-0.597 |
-0.254 |
-0.070 |
-6.773 |
176.091 |
| Median |
-0.672 |
-0.384 |
-0.184 |
-10.624 |
209.920 |
| Deviation |
0.298 |
0.489 |
0.573 |
43.568 |
78.887 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
17.4 ± 7.6 |
378.2 ± 4.8 |
3.36 ± 0.38 |
| VC |
51.4 ± 5.3 |
523.4 ± 6.3 |
3.36 ± 0.38 |
| MX1 |
35.7 ± 0.8 |
497.7 ± 6.0 |
3.36 ± 0.38 |
| MX2 |
61.8 ± 2.2 |
425.1 ± 5.0 |
3.36 ± 0.38 |
| MX3 |
51.1 ± 2.2 |
460.3 ± 5.5 |
3.36 ± 0.38 |
| RH08 |
33.5 ± 11.7 |
179.5 ± 2.7 |
3.36 ± 0.38 |
| RH09 |
58.1 ± 5.1 |
62.7 ± 1.6 |
3.36 ± 0.38 |
| RH10 |
83.7 ± 17.6 |
225.6 ± 8.3 |
3.36 ± 0.38 |
| Average |
49.1 |
344.1 |
3.36 |
| Median |
51.4 |
425.1 |
3.36 |
| Deviation |
20.3 |
167.9 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
93.6 ± 1.4 |
32.9 ± 2.8 |
36.7 ± 4.1 |
45.5 ± 4.0 |
2.86 ± 0.28 |
2.07 ± 0.21 |
| VC |
148.0 ± 3.5 |
18.4 ± 1.6 |
24.0 ± 2.7 |
53.0 ± 4.6 |
8.08 ± 0.83 |
2.81 ± 0.29 |
| MX1 |
139.0 ± 2.5 |
25.4 ± 2.2 |
31.3 ± 3.5 |
50.0 ± 4.4 |
5.50 ± 0.55 |
2.80 ± 0.29 |
| MX2 |
135.2 ± 2.0 |
13.6 ± 1.2 |
18.2 ± 2.0 |
54.4 ± 4.7 |
10.00 ± 1.01 |
2.50 ± 0.26 |
| MX3 |
139.3 ± 2.2 |
18.6 ± 1.6 |
24.1 ± 2.7 |
52.9 ± 4.6 |
7.55 ± 0.76 |
2.65 ± 0.27 |
| RH8 |
36.6 ± 0.6 |
26.3 ± 2.3 |
32.1 ± 3.6 |
49.5 ± 4.3 |
1.40 ± 0.13 |
0.74 ± 0.07 |
| RH9 |
44.0 ± 1.4 |
15.3 ± 1.3 |
20.3 ± 2.3 |
54.0 ± 4.7 |
2.89 ± 0.32 |
0.82 ± 0.09 |
| RH10 |
33.6 ± 4.9 |
3.1 ± 0.3 |
4.2 ± 0.5 |
56.0 ± 4.9 |
10.97 ± 1.95 |
0.60 ± 0.10 |
| Average |
96.1 |
19.2 |
23.9 |
51.9 |
6.2 |
1.9 |
| Median |
135.2 |
18.6 |
24.1 |
53.0 |
7.6 |
2.5 |
| Deviation |
50.8 |
9.1 |
10.1 |
3.4 |
3.5 |
1.0 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
30.7 ± 9.2 |
38.5 ± 3.8 |
39.0 ± 4.0 |
89.7 ± 4.2 |
0.79 ± 0.20 |
0.34 ± 0.12 |
| VC |
43.8 ± 10.3 |
23.8 ± 2.0 |
25.5 ± 2.6 |
94.7 ± 3.0 |
1.84 ± 0.39 |
0.46 ± 0.12 |
| MX1 |
42.2 ± 10.3 |
31.8 ± 2.9 |
33.2 ± 3.4 |
92.3 ± 3.5 |
1.33 ± 0.28 |
0.46 ± 0.12 |
| MX2 |
39.1 ± 7.7 |
17.8 ± 1.4 |
19.3 ± 2.0 |
96.1 ± 2.7 |
2.20 ± 0.40 |
0.41 ± 0.09 |
| MX3 |
41.1 ± 8.8 |
24.0 ± 2.0 |
25.6 ± 2.6 |
94.7 ± 3.0 |
1.72 ± 0.33 |
0.44 ± 0.10 |
| RH8 |
13.6 ± 5.8 |
32.8 ± 3.0 |
34.1 ± 3.5 |
92.0 ± 3.6 |
0.41 ± 0.15 |
0.15 ± 0.07 |
| RH9 |
13.9 ± 2.8 |
20.0 ± 1.6 |
21.6 ± 2.2 |
95.6 ± 2.8 |
0.71 ± 0.21 |
0.15 ± 0.02 |
| RH10 |
10.6 ± 5.5 |
4.1 ± 0.3 |
4.5 ± 0.5 |
97.6 ± 2.5 |
2.59 ± 1.24 |
0.11 ± 0.06 |
| Average |
29.4 |
24.1 |
25.3 |
94.1 |
1.4 |
0.3 |
| Median |
39.1 |
24.0 |
25.6 |
94.7 |
1.7 |
0.4 |
| Deviation |
14.4 |
10.7 |
10.7 |
2.6 |
0.8 |
0.2 |
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)
| 
