Database: Wind Shock Analysis
Event ID: 20121410120
Observation time: 05/20/2012 141.05602 0120 [UT]
|
|
General
Information (About, Top)
| Year |
2012 |
| Fractional day of year |
141.056024 |
| Arrival time of shock [seconds of day] |
4840.5 ± 10.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
291.085 |
| Y GSE location of spacecraft [Re] |
147.425 |
| Z GSE location of spacecraft [Re] |
46.908 |
| Upstream plasma points selected for analysis |
0004 |
| Upstream field points selected for analysis |
0165 |
| Downstream plasma points selected for analysis |
0004
|
| Downstream field points selected for analysis |
0078 |
| Minimum chisq/dof for RH8,RH9,RH10 |
4.25, 6.21, 7.25 |
Event added to database
|
Thu Sep 19 16:17:28 2013
|
Event last processed
|
Mon Oct 7 14:16:21 2013
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
59.499 ± 5.838
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-359.6 ± 6.5 |
-402.1 ± 2.2 |
| Vy GSE [km/s] |
1.4 ± 3.0 |
34.4 ± 12.0 |
| Vz GSE [km/s] |
1.6 ± 5.1 |
31.0 ± 8.7 |
| Wi [km/s] |
29.2 ± 3.8 |
40.3 ± 2.1 |
| We [km/s] |
924.9 ± 121.6 |
1273.3 ± 66.8 |
| Ni [n/cc] |
3.4 ± 0.4 |
7.6 ± 0.6 |
| Bx GSE [nT] |
-3.8 ± 0.1 |
-5.8 ± 1.0 |
| By GSE [nT] |
1.2 ± 0.1 |
-1.9 ± 2.0 |
| Bz GSE [nT] |
-0.1 ± 0.3 |
-3.1 ± 1.7 |
Plasma Beta
|
0.387 ± 0.459
|
0.514 ± 0.546
|
Sound Speed [km/s]
|
37.76 ± 4.96
|
51.98 ± 2.73
|
Alfven Speed [km/s]
|
48.18 ± 3.73
|
57.68 ± 7.20
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.896 ± 0.083 |
0.409 ± 0.174 |
0.171 ± 0.170 |
9.87 ± 9.14 |
155.44 ± 11.09 |
| VC |
-0.701 ± 0.108 |
0.525 ± 0.121 |
0.482 ± 0.441 |
28.81 ± 10.62 |
143.18 ± 8.85 |
| MX1 |
-0.909 ± 0.079 |
0.380 ± 0.172 |
0.170 ± 0.169 |
9.81 ± 12.04 |
157.33 ± 10.79 |
| MX2 |
-0.901 ± 0.070 |
0.323 ± 0.189 |
0.291 ± 0.283 |
16.93 ± 3.94 |
160.27 ± 12.02 |
| MX3 |
-0.893 ± 0.068 |
0.291 ± 0.204 |
0.343 ± 0.329 |
20.03 ± 2.95 |
161.97 ± 13.09 |
| RH08 |
-0.957 ± 0.015 |
0.161 ± 0.048 |
0.240 ± 0.235 |
13.90 ± 3.01 |
170.47 ± 2.89 |
| RH09 |
-0.962 ± 0.019 |
0.076 ± 0.071 |
0.263 ± 0.256 |
15.22 ± 4.00 |
175.49 ± 4.20 |
| RH10 |
-0.965 ± 0.018 |
0.076 ± 0.071 |
0.251 ± 0.246 |
14.56 ± 3.99 |
175.49 ± 4.20 |
| Average |
-0.898 |
0.280 |
0.276 |
16.142 |
162.455 |
| Median |
-0.901 |
0.323 |
0.263 |
15.223 |
161.971 |
| Deviation |
0.085 |
0.163 |
0.101 |
6.142 |
11.059 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
13.6 ± 4.4 |
428.9 ± 2.5 |
2.29 ± 0.47 |
| VC |
35.7 ± 4.5 |
366.6 ± 2.3 |
2.29 ± 0.47 |
| MX1 |
12.7 ± 4.6 |
432.5 ± 2.4 |
2.29 ± 0.47 |
| MX2 |
18.9 ± 4.7 |
430.0 ± 2.0 |
2.29 ± 0.47 |
| MX3 |
21.9 ± 4.7 |
426.1 ± 1.9 |
2.29 ± 0.47 |
| RH08 |
18.0 ± 3.7 |
439.7 ± 1.7 |
2.29 ± 0.47 |
| RH09 |
21.8 ± 3.3 |
437.7 ± 1.5 |
2.29 ± 0.47 |
| RH10 |
21.3 ± 3.2 |
438.5 ± 5.9 |
2.29 ± 0.47 |
| Average |
20.5 |
425.0 |
2.29 |
| Median |
21.3 |
432.5 |
2.29 |
| Deviation |
7.1 |
24.1 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
105.8 ± 6.9 |
35.0 ± 3.9 |
46.8 ± 3.6 |
50.3 ± 2.7 |
3.07 ± 0.58 |
2.10 ± 0.03 |
| VC |
112.9 ± 6.1 |
26.5 ± 2.3 |
39.1 ± 3.0 |
55.4 ± 1.5 |
4.30 ± 0.64 |
2.04 ± 0.08 |
| MX1 |
104.8 ± 6.9 |
35.3 ± 4.0 |
47.0 ± 3.6 |
50.1 ± 2.8 |
3.02 ± 0.58 |
2.09 ± 0.02 |
| MX2 |
105.3 ± 6.7 |
33.2 ± 3.4 |
45.6 ± 3.5 |
51.6 ± 2.3 |
3.21 ± 0.58 |
2.04 ± 0.05 |
| MX3 |
104.0 ± 6.6 |
32.1 ± 3.2 |
44.7 ± 3.5 |
52.3 ± 2.1 |
3.28 ± 0.57 |
1.99 ± 0.06 |
| RH8 |
94.8 ± 6.6 |
33.6 ± 3.5 |
45.8 ± 3.5 |
51.3 ± 2.3 |
2.87 ± 0.54 |
1.85 ± 0.05 |
| RH9 |
91.2 ± 6.4 |
32.2 ± 3.2 |
44.7 ± 3.5 |
52.2 ± 2.1 |
2.87 ± 0.52 |
1.75 ± 0.06 |
| RH10 |
91.0 ± 6.4 |
32.4 ± 3.3 |
44.9 ± 3.5 |
52.1 ± 2.1 |
2.85 ± 0.52 |
1.75 ± 0.06 |
| Average |
101.2 |
32.5 |
44.8 |
51.9 |
3.2 |
1.9 |
| Median |
104.8 |
33.2 |
45.6 |
52.1 |
3.1 |
2.0 |
| Deviation |
7.9 |
2.7 |
2.5 |
1.6 |
0.5 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
49.1 ± 5.6 |
46.4 ± 1.1 |
56.1 ± 7.0 |
62.5 ± 4.4 |
1.06 ± 0.13 |
0.79 ± 0.12 |
| VC |
51.6 ± 5.2 |
34.8 ± 1.1 |
46.8 ± 5.8 |
69.7 ± 4.0 |
1.49 ± 0.17 |
0.74 ± 0.09 |
| MX1 |
48.5 ± 5.2 |
46.8 ± 1.0 |
56.3 ± 7.0 |
62.2 ± 4.5 |
1.04 ± 0.12 |
0.78 ± 0.11 |
| MX2 |
47.8 ± 3.9 |
43.9 ± 1.1 |
54.6 ± 6.8 |
64.3 ± 4.2 |
1.09 ± 0.10 |
0.75 ± 0.08 |
| MX3 |
46.3 ± 3.3 |
42.4 ± 1.2 |
53.5 ± 6.7 |
65.3 ± 4.1 |
1.09 ± 0.09 |
0.71 ± 0.07 |
| RH8 |
41.7 ± 2.3 |
44.4 ± 1.1 |
54.9 ± 6.9 |
64.0 ± 4.2 |
0.94 ± 0.06 |
0.65 ± 0.06 |
| RH9 |
40.1 ± 1.2 |
42.5 ± 1.2 |
53.6 ± 6.7 |
65.2 ± 4.1 |
0.94 ± 0.04 |
0.62 ± 0.04 |
| RH10 |
40.1 ± 1.3 |
42.7 ± 1.1 |
53.8 ± 6.7 |
65.1 ± 4.1 |
0.94 ± 0.04 |
0.62 ± 0.04 |
| Average |
45.7 |
43.0 |
53.7 |
64.8 |
1.1 |
0.7 |
| Median |
47.8 |
43.9 |
54.6 |
65.1 |
1.1 |
0.7 |
| Deviation |
4.4 |
3.7 |
3.0 |
2.3 |
0.2 |
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)
| 
