Database: Wind Shock Analysis
Event ID: 20182712357
Observation time: 09/28/2018 271.99818 2357 [UT]
|
|
General
Information (About, Top)
| Year |
2018 |
| Fractional day of year |
271.998177 |
| Arrival time of shock [seconds of day] |
86242.5 ± 30.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
242.620 |
| Y GSE location of spacecraft [Re] |
-83.515 |
| Z GSE location of spacecraft [Re] |
10.032 |
| Upstream plasma points selected for analysis |
0003 |
| Upstream field points selected for analysis |
0117 |
| Downstream plasma points selected for analysis |
0003
|
| Downstream field points selected for analysis |
0157 |
| Minimum chisq/dof for RH8,RH9,RH10 |
116.31, Infinity, -9103.71 |
Event added to database
|
Tue Dec 25 19:57:24 2018
|
Event last processed
|
Tue Dec 10 18:53:02 2019
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
54.245 ± 11.315
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-365.8 ± 0.9 |
-381.8 ± 0.3 |
| Vy GSE [km/s] |
11.7 ± 0.7 |
6.8 ± 0.8 |
| Vz GSE [km/s] |
-7.7 ± 0.9 |
-28.0 ± 1.5 |
| Wi [km/s] |
20.9 ± 0.2 |
27.1 ± 0.2 |
| We [km/s] |
662.1 ± 6.7 |
857.8 ± 5.7 |
| Ni [n/cc] |
10.5 ± 0.4 |
18.6 ± 0.2 |
| Bx GSE [nT] |
-2.2 ± 0.1 |
-3.6 ± 0.0 |
| By GSE [nT] |
2.2 ± 0.3 |
3.8 ± 0.1 |
| Bz GSE [nT] |
-0.3 ± 0.3 |
1.0 ± 0.1 |
Plasma Beta
|
0.987 ± 0.982
|
1.001 ± 0.994
|
Sound Speed [km/s]
|
27.03 ± 0.27
|
35.02 ± 0.23
|
Alfven Speed [km/s]
|
21.26 ± 1.85
|
27.13 ± 0.62
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.457 ± 0.156 |
0.359 ± 0.195 |
-0.814 ± 0.552 |
-54.46 ± 3.48 |
141.89 ± 24.17 |
| VC |
-0.609 ± 0.044 |
-0.188 ± 0.035 |
-0.771 ± 0.561 |
-50.43 ± 3.37 |
197.16 ± 3.06 |
| MX1 |
-0.696 ± 0.027 |
-0.024 ± 0.098 |
-0.718 ± 0.557 |
-45.90 ± 2.11 |
181.98 ± 8.05 |
| MX2 |
-0.708 ± 0.033 |
-0.054 ± 0.079 |
-0.704 ± 0.555 |
-44.75 ± 2.62 |
184.39 ± 6.38 |
| MX3 |
-0.721 ± 0.040 |
-0.086 ± 0.063 |
-0.688 ± 0.551 |
-43.45 ± 3.32 |
186.81 ± 4.99 |
| RH08 |
-0.762 ± 0.045 |
-0.142 ± 0.069 |
-0.631 ± 0.530 |
-39.14 ± 4.02 |
190.53 ± 5.18 |
| RH09 |
-0.000 ± 0.035 |
-0.000 ± 0.000 |
-1.000 ± 0.000 |
-90.00 ± 2.00 |
0.00 ± 2.00 |
| RH10 |
-0.348 ± 0.065 |
0.808 ± 0.041 |
0.475 ± 0.435 |
28.35 ± 4.06 |
113.31 ± 4.51 |
| Average |
-0.538 |
0.084 |
-0.606 |
-42.472 |
149.510 |
| Median |
-0.609 |
-0.024 |
-0.704 |
-44.749 |
184.393 |
| Deviation |
0.260 |
0.336 |
0.451 |
32.756 |
66.908 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
48.9 ± 3.9 |
228.3 ± 1.4 |
1.77 ± 0.08 |
| VC |
68.3 ± 1.4 |
287.0 ± 1.3 |
1.77 ± 0.08 |
| MX1 |
57.3 ± 1.4 |
319.1 ± 1.2 |
1.77 ± 0.08 |
| MX2 |
58.3 ± 1.3 |
323.5 ± 1.2 |
1.77 ± 0.08 |
| MX3 |
59.3 ± 1.1 |
327.8 ± 1.2 |
1.77 ± 0.08 |
| RH08 |
60.4 ± 0.9 |
341.7 ± 1.1 |
1.77 ± 0.08 |
| RH09 |
84.0 ± 4.3 |
54.0 ± 1.5 |
1.77 ± 0.08 |
| RH10 |
40.1 ± 2.0 |
114.9 ± 1.9 |
1.77 ± 0.08 |
| Average |
59.6 |
249.5 |
1.77 |
| Median |
59.3 |
319.1 |
1.77 |
| Deviation |
12.9 |
109.0 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
50.6 ± 0.7 |
11.7 ± 0.6 |
14.0 ± 1.2 |
32.4 ± 0.8 |
4.35 ± 0.21 |
1.56 ± 0.03 |
| VC |
60.7 ± 0.2 |
6.3 ± 0.3 |
7.9 ± 0.7 |
33.8 ± 0.9 |
9.70 ± 0.46 |
1.79 ± 0.04 |
| MX1 |
59.5 ± 0.3 |
9.4 ± 0.5 |
11.5 ± 1.0 |
33.1 ± 0.8 |
6.36 ± 0.30 |
1.80 ± 0.04 |
| MX2 |
59.7 ± 0.3 |
9.1 ± 0.5 |
11.2 ± 1.0 |
33.2 ± 0.8 |
6.58 ± 0.31 |
1.80 ± 0.04 |
| MX3 |
59.9 ± 0.3 |
8.8 ± 0.5 |
10.9 ± 0.9 |
33.3 ± 0.8 |
6.81 ± 0.32 |
1.80 ± 0.04 |
| RH8 |
59.6 ± 0.3 |
8.5 ± 0.4 |
10.5 ± 0.9 |
33.3 ± 0.9 |
7.02 ± 0.33 |
1.79 ± 0.04 |
| RH9 |
46.3 ± 0.9 |
1.8 ± 0.1 |
2.2 ± 0.2 |
34.4 ± 0.9 |
26.39 ± 1.44 |
1.35 ± 0.04 |
| RH10 |
-18.4 ± 0.6 |
13.9 ± 0.8 |
16.3 ± 1.4 |
31.5 ± 0.7 |
-1.32 ± 0.12 |
-0.58 ± 0.03 |
| Average |
47.2 |
8.7 |
10.5 |
33.1 |
8.2 |
1.4 |
| Median |
59.6 |
9.1 |
11.2 |
33.3 |
6.8 |
1.8 |
| Deviation |
27.0 |
3.6 |
4.2 |
0.9 |
8.0 |
0.8 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
28.5 ± 1.4 |
15.0 ± 0.2 |
17.8 ± 0.4 |
41.7 ± 0.3 |
1.90 ± 0.12 |
0.68 ± 0.04 |
| VC |
34.4 ± 0.9 |
8.1 ± 0.1 |
10.0 ± 0.2 |
43.6 ± 0.4 |
4.27 ± 0.18 |
0.79 ± 0.03 |
| MX1 |
33.6 ± 1.0 |
12.0 ± 0.2 |
14.7 ± 0.3 |
42.6 ± 0.4 |
2.79 ± 0.12 |
0.79 ± 0.03 |
| MX2 |
33.8 ± 0.9 |
11.7 ± 0.2 |
14.3 ± 0.3 |
42.7 ± 0.4 |
2.89 ± 0.12 |
0.79 ± 0.03 |
| MX3 |
34.0 ± 0.9 |
11.3 ± 0.2 |
13.9 ± 0.3 |
42.8 ± 0.4 |
3.00 ± 0.12 |
0.79 ± 0.03 |
| RH8 |
33.9 ± 0.7 |
10.9 ± 0.2 |
13.4 ± 0.3 |
42.9 ± 0.4 |
3.10 ± 0.11 |
0.79 ± 0.02 |
| RH9 |
26.0 ± 1.5 |
2.3 ± 0.0 |
2.9 ± 0.1 |
44.2 ± 0.4 |
11.50 ± 0.83 |
0.59 ± 0.04 |
| RH10 |
-10.3 ± 0.6 |
17.9 ± 0.3 |
20.7 ± 0.5 |
40.5 ± 0.3 |
-0.57 ± 0.04 |
-0.25 ± 0.02 |
| Average |
26.7 |
11.2 |
13.5 |
42.6 |
3.6 |
0.6 |
| Median |
33.8 |
11.7 |
14.3 |
42.8 |
3.0 |
0.8 |
| Deviation |
15.3 |
4.6 |
5.3 |
1.1 |
3.5 |
0.4 |
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 Wed Jan 22 21:47:00 2020
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
