Database: Wind Shock Analysis
Event ID: 20120172015
Observation time: 01/17/2012 17.84436 2015 [UT]
|
|
General
Information (About, Top)
| Year |
2012 |
| Fractional day of year |
17.844358 |
| Arrival time of shock [seconds of day] |
72952.5 ± 30.0 |
| Shock type |
NN |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
198.125 |
| Y GSE location of spacecraft [Re] |
-61.725 |
| Z GSE location of spacecraft [Re] |
-12.123 |
| Upstream plasma points selected for analysis |
0003 |
| Upstream field points selected for analysis |
0077 |
| Downstream plasma points selected for analysis |
0003
|
| Downstream field points selected for analysis |
0083 |
| Minimum chisq/dof for RH8,RH9,RH10 |
63.12, Infinity, -924.49 |
Event added to database
|
Thu Sep 19 12:05:43 2013
|
Event last processed
|
Mon Oct 7 13:52:20 2013
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
-7.709 ± 42.841
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-389.6 ± 1.1 |
-414.1 ± 0.8 |
| Vy GSE [km/s] |
23.5 ± 5.5 |
11.7 ± 1.5 |
| Vz GSE [km/s] |
-4.0 ± 2.5 |
6.2 ± 2.1 |
| Wi [km/s] |
34.2 ± 1.7 |
38.4 ± 1.5 |
| We [km/s] |
1082.5 ± 53.0 |
1214.7 ± 48.3 |
| Ni [n/cc] |
3.5 ± 0.1 |
4.4 ± 0.1 |
| Bx GSE [nT] |
3.9 ± 0.1 |
2.9 ± 0.1 |
| By GSE [nT] |
0.8 ± 0.7 |
0.0 ± 0.3 |
| Bz GSE [nT] |
-2.1 ± 0.1 |
-2.4 ± 0.1 |
Plasma Beta
|
0.419 ± 0.378
|
0.988 ± 0.938
|
Sound Speed [km/s]
|
44.19 ± 2.16
|
49.59 ± 1.97
|
Alfven Speed [km/s]
|
53.15 ± 2.53
|
38.75 ± 1.19
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.522 ± 0.150 |
0.196 ± 0.186 |
0.830 ± 0.546 |
56.14 ± 9.85 |
159.41 ± 19.64 |
| VC |
-0.851 ± 0.074 |
-0.395 ± 0.145 |
0.346 ± 0.332 |
20.24 ± 5.67 |
204.91 ± 9.73 |
| MX1 |
-0.721 ± 0.361 |
0.389 ± 0.610 |
0.573 ± 0.500 |
34.95 ± 17.54 |
151.66 ± 48.03 |
| MX2 |
-0.536 ± 0.147 |
0.340 ± 0.174 |
0.773 ± 0.561 |
50.59 ± 9.29 |
147.59 ± 17.17 |
| MX3 |
-0.492 ± 0.169 |
0.016 ± 0.262 |
0.870 ± 0.520 |
60.50 ± 11.13 |
178.13 ± 30.49 |
| RH08 |
0.028 ± 0.069 |
-0.146 ± 0.044 |
0.989 ± 0.212 |
81.43 ± 2.50 |
280.78 ± 26.67 |
| RH09 |
-0.110 ± 0.026 |
0.101 ± 0.024 |
-0.989 ± 0.212 |
-81.43 ± 2.00 |
137.38 ± 2.00 |
| RH10 |
-0.719 ± 0.048 |
-0.554 ± 0.058 |
0.419 ± 0.393 |
24.77 ± 3.98 |
217.60 ± 4.37 |
| Average |
-0.490 |
-0.007 |
0.476 |
30.899 |
184.683 |
| Median |
-0.522 |
0.101 |
0.773 |
50.586 |
178.126 |
| Deviation |
0.305 |
0.338 |
0.633 |
49.625 |
47.977 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
36.8 ± 4.5 |
288.8 ± 4.4 |
1.28 ± 0.09 |
| VC |
14.9 ± 7.7 |
451.5 ± 5.5 |
1.28 ± 0.09 |
| MX1 |
34.3 ± 7.9 |
375.0 ± 5.5 |
1.28 ± 0.09 |
| MX2 |
40.2 ± 6.0 |
288.0 ± 4.9 |
1.28 ± 0.09 |
| MX3 |
34.7 ± 2.2 |
282.8 ± 3.9 |
1.28 ± 0.09 |
| RH08 |
63.0 ± 1.0 |
32.7 ± 3.0 |
1.28 ± 0.09 |
| RH09 |
67.9 ± 0.7 |
9.3 ± 3.2 |
1.28 ± 0.09 |
| RH10 |
24.0 ± 8.3 |
394.5 ± 15.1 |
1.28 ± 0.09 |
| Average |
39.5 |
265.3 |
1.28 |
| Median |
36.8 |
288.8 |
1.28 |
| Deviation |
18.0 |
162.3 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
84.3 ± 3.0 |
30.2 ± 0.6 |
42.6 ± 2.0 |
62.2 ± 1.3 |
2.80 ± 0.12 |
1.36 ± 0.07 |
| VC |
130.6 ± 2.6 |
40.4 ± 1.2 |
51.4 ± 2.4 |
56.1 ± 1.6 |
3.24 ± 0.16 |
2.33 ± 0.07 |
| MX1 |
87.1 ± 3.2 |
31.5 ± 0.6 |
43.9 ± 2.1 |
61.6 ± 1.3 |
2.77 ± 0.11 |
1.41 ± 0.08 |
| MX2 |
74.2 ± 3.4 |
28.4 ± 0.6 |
40.6 ± 1.9 |
63.1 ± 1.3 |
2.61 ± 0.13 |
1.18 ± 0.08 |
| MX3 |
94.1 ± 2.5 |
31.3 ± 0.6 |
43.7 ± 2.1 |
61.7 ± 1.3 |
3.01 ± 0.13 |
1.53 ± 0.07 |
| RH8 |
50.9 ± 2.2 |
15.8 ± 0.3 |
24.1 ± 1.1 |
67.3 ± 1.2 |
3.22 ± 0.19 |
0.76 ± 0.05 |
| RH9 |
-39.7 ± 2.1 |
13.0 ± 0.2 |
20.0 ± 0.9 |
67.9 ± 1.2 |
-3.07 ± 0.21 |
-0.59 ± 0.04 |
| RH10 |
128.9 ± 3.3 |
36.4 ± 0.8 |
48.5 ± 2.3 |
58.8 ± 1.4 |
3.54 ± 0.17 |
2.19 ± 0.07 |
| Average |
76.3 |
28.4 |
39.3 |
62.3 |
2.3 |
1.3 |
| Median |
87.1 |
31.3 |
43.7 |
62.2 |
3.0 |
1.4 |
| Deviation |
53.9 |
9.5 |
11.3 |
3.9 |
2.2 |
0.9 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
65.4 ± 1.0 |
27.0 ± 0.4 |
31.0 ± 1.0 |
56.9 ± 1.2 |
2.42 ± 0.05 |
1.15 ± 0.04 |
| VC |
101.6 ± 0.7 |
35.9 ± 0.8 |
37.4 ± 1.2 |
51.7 ± 1.6 |
2.83 ± 0.06 |
1.97 ± 0.07 |
| MX1 |
68.1 ± 0.1 |
28.2 ± 0.4 |
32.0 ± 1.0 |
56.3 ± 1.2 |
2.42 ± 0.03 |
1.21 ± 0.03 |
| MX2 |
57.2 ± 0.7 |
25.5 ± 0.3 |
29.6 ± 0.9 |
57.6 ± 1.1 |
2.25 ± 0.04 |
0.99 ± 0.03 |
| MX3 |
73.4 ± 1.4 |
28.0 ± 0.4 |
31.9 ± 1.0 |
56.4 ± 1.2 |
2.62 ± 0.06 |
1.30 ± 0.05 |
| RH8 |
39.9 ± 2.3 |
14.2 ± 0.2 |
17.6 ± 0.5 |
61.3 ± 1.0 |
2.81 ± 0.17 |
0.65 ± 0.05 |
| RH9 |
-31.2 ± 2.3 |
11.7 ± 0.1 |
14.6 ± 0.4 |
61.9 ± 1.0 |
-2.68 ± 0.20 |
-0.51 ± 0.05 |
| RH10 |
100.6 ± 1.1 |
32.6 ± 0.6 |
35.4 ± 1.1 |
53.9 ± 1.3 |
3.09 ± 0.06 |
1.87 ± 0.07 |
| Average |
59.4 |
25.4 |
28.7 |
57.0 |
2.0 |
1.1 |
| Median |
68.1 |
28.0 |
31.9 |
56.9 |
2.6 |
1.2 |
| Deviation |
42.1 |
8.4 |
8.2 |
3.4 |
1.9 |
0.8 |
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)
| 
